| The Science of psychology. | |
| Psychology | Involves the study of mental activity and behavior |
| Psychologist | is someone who has a career involving understanding |
| | mental life or predicting behavior. |
| Science | We are humans with intuition and try to understand and predict others behaviors. |
| | People predict if others are kind, trustworthy, good caretakers, good teachers, etc. |
| | People often rely on common sense and gut feelings. Psychology is more than |
| | intuition and common sense, it is the research done of mind, brain , and behavior. |
| Mind | Mental activity, 5 senses, interacting with the world, memories, thoughts, feelings. |
| | Mental activity is the biological process within the brain. |
| Behavior | Observable actions, subtle to complex, debating, philosophy, performing. |
| | animalistic: eating, drinking, mating. |
| Psychology History | founded by philosophers and great thinkers to understand human nature. |
| | Confucius- human development, education, discipline, schools of thought. |
| Nature vs Nurture | Aristotle and Plato- biologically innate or acquired by education, experience, culture. |
| | Nature and nurture dynamically interact and shape mind, brain and behavior. |
| Mind-Body Problem | Are mind and body separate and distinct? |
| | Egyptians embalmed the heart, Greeks and Romans knew of mental function |
| | of the brain, roman gladiator injuries taught on brain issues. |
| | Leonardo Davinci challenged that mind and body were not separated. |
| | The taught Sensus Communis (common sense) as home of thought and judgement. |
| | Rene Descartes- Dualism theory. Separate but intertwined, governed by reflex. |
| | Mental functions like memory, imagination were from body functions. |
| | Deliberate action was controlled by the rational mind. |
| | Today psychologist reject dualism as mind is from brain activity. |
| John Stuart Mills | John stuart Mills mid-1800’s. Psychology not philosophy needs observation |
| | and experiment of science, “science of the elementary laws of the mind”. |
| | mental activity through careful scientific observation. |
| Wilhelm Wundt | Created first psychology lab, degree in psychology |
| | study reaction time- how people can respond and process |
| | Introspection: people to inspect and report on contents of their thoughts |
| Edward Titchener- | Wundt student who founded structuralism- conscious experience can be |
| | broken down into basic underlying components |
| | Overtime introspection was largely abandoned since it was too subjective. |
| William James | wrote Principles of Psychology. He argued that the mind consists of ever-changing |
| | continues series of thoughts, stream of consciousness. How the mind operates |
| | Functionalism- how the mind operates, how the mind came into existence over human evolution |
| | mind works as it does because it is useful for preserving life and passing along genes to future. |
| | Mind helps to adapt to environmental demands. |
| Charles Darwin | influenced functionalism. Observed changes in species, survival and reproduction, adaptations |
| | Evolutionary theory, Adaptations, and natural selection. |
| Gestalt School- Max Wertheimer 1912 | whole of personal experience is not simply the sum of its constituent elements, |
| | the whole is different form the sum of its parts. |
| | Perception of objects is subjective and dependent on context. |
| | Two people can see different things looking at the same object. |
| | The study of vision and understanding human personality |
| Sigmund Freud | Neurological disorders, some people had few medical reasons for their paralysis |
| | hysterias or psychological factors were involved, human behavior is determined by |
| | mental processes operating below the level of conscious awareness. |
| | Subconscious level is called the unconscious. It was often sexual and in conflict, psychological |
| | discomfort and in some cases even psychological disorders. |
| | Many unconscious conflicts have origin in childhood experience that a person blocks from memory |
| | Psychoanalysis: Freud pioneered the clinical study approach |
| Pscyhoanalysis | therapist and patient work together to bring out patients contents of their conscious awareness |
| | Once revealed the therapist helps patient deal with them constructively. |
| | Free association the patient talks about whatever for however long they like to reveal contents |
| | that causes psychological problems. The work helps shape public view of psychology |
| Behaviorism. John B. Watson. 1913 | Environment affects observable behavior. Nurture was everything. |
| Ivan pavlov | Watson agrees that animals acquire or learn all behavior through environmental experience. |
| | Environmental Stimuli or triggers in particular situations. By understanding the stimuli we |
| | can predict animals behaviors responses to those stimuli. Behaviors well researches into 1960’s. |
| | Evidence emerged that learning is not as simple as behaviorist thought. |
| | Research conducted on memory, language and child development showed simple laws they |
| | could not explain, they suggested that mental functions are important for understanding behavior. |
| George Miller and Congnitive revolution | Psychologist G. Miller looked at data concerning behavior and cognition. |
| Cognitive psychology | is concerned with mental functions such as intelligence, thinking, language, memory and decision |
| | making. The way people think influences their behavior. |
| Cognitive neuroscience | 1980’s, cognitive psychologists joined with neuroscientists, computer scientist, philosophers |
| | to develop integrative view of mind and brain. Researchers in this field study neural mechanism |
| | like brain, nerves and nerve cells that underlie thought, learning, perception, language, memory. |
| | Peoples behaviors are affected by presence of others. |
| | Topics of authority, obedience, and group behavior. |
| Kurt Lewin and Social Psychology | scientific experimental approach to understanding how people are affected by others. |
| | The power of the situation and on the way people are shaped through interactions with others. |
| Personality psychology | the study of people’s characteristic thoughts, emotions, |
| | behaviors and how they vary across social situations like shy or outgoing. |
| 1950: Carl rogers Abraham Maslow | Humanistic approach to psychological disorder treatment. |
| | Acceptance of the self to reach unique potential |
| Questioning and listening in therapy. There is no one size fits all for psychological disorders. |
| Behavior and Biology | |
| Nervous system | responsible for everything people think, feel, and do. Each of us is a nervous system |
| | Neurons- nerve cells |
| | complex network of neurons sending and receiving signals, functional basis of psychological activity |
| | Neurons do not communicate random only or arbitrarily, they communicate selectively |
| | with other neurons to form circuits call NEURAL Networks. |
| | The networks develop through maturation and experience and repeated firings. |
| | Permanent alliances form among groups of neurons. |
| Divisions of Nervous system | CNS- central nervous system, Brain and Spinal cord |
| | PNS- peripheral nervous systems composed of 2: |
| | 1. Somatic nervous systems (2) |
| | a. skin, muscles, joints send signals to spinal cord and brain |
| | b. Brain and spinal cord send signals to the muscles, joints, and skin. |
| | 2. Autonomic Nervous system: (2) |
| | a. Glands and internal organs send signals to spinal cord and brain |
| | b. Brain and spinal cord send signals to the glands and internal organs (2) |
| | i. Sympathetic Nervous system |
| | ii. Parasympathetic system |
| Neurons | specialized for communication |
| | Nerve cells are excitable, powered by electrical impulses and communicate w/ chemical signals |
| | 1. Sensory neuron: detect information from the physical world and pass that information to brain |
| | 2. Motor neurons: direct muscles to contract or relax, thereby producing movement. |
| | 3. Interneurons: communicate with local or short-distance circuits. |
| | Dendrites- Cell body- Axon- myelin sheath, node of Ranvier- synapse |
| Neurotransmitters | Reuptake- neurotransmitter is taken back into presynaptic terminal |
| | enzyme deactivation- enzyme destroys neurotransmitter in synapse |
| | Autoreceptors- neurotransmitters bind with receptors on presynaptic neuron to monitor how much |
| Neurotansmitters and mental activity/behavior | learned through systemic study of how drugs and toxins affect emotion, thought, and behavior |
| | they can alter how a neurotransmitter is synthesized |
| | raise or lower the amount a neurotransmitter is released from a terminal |
| | block the reuptake |
| | Agonists: enhance the actions of neurotransmitters |
| | Antagonists: inhibit the actions or neurotransmitters. |
| Acetylcholine | motor control over muscles. Associated with Alzheimer’s when deficient) |
| | learning, memory, sleeping, dreaming |
| epinephrine | energy, (adrenaline) fight-flight response |
| noreponephrine | arousal, vigilance, attention. Sensitive to the world around you. |
| Serotonin | emotional state, impulsiveness |
| | dreaming. Sad and anxious when low, food cravings and aggressive behavior. |
| Dopamine | reward and motivation. Planning. Lack of dopamine is in Parkinson’s disease- rigidity, tremors. |
| | motor control over voluntary movement |
| Gaba (gamma-aminobutyric acid) | Inhibition of action potentials. Distributed in brain, without it the synaptic excitation can get chaotic. |
| | anxiety reduction. Xanax, Valium, alcohol- all relax. |
| Glutamate | Enhancement of action potentials |
| | learning and memory |
| Endorphins | pain reduction |
| reward |
| Brain Structure | Everything we do is orchestrated by the brain |
| | spinal cord- control of rudimentary actions |
| paul Broca | 19th century- evidence of brain regions |
| | Broca’s area: left frontal region used in the production of language. Understand language |
| | some with Broca’s area injury cannot very speak well, but understand language. |
| Brain Study Imaging | EEG- Electroencephalogram measures brain activity, electrodes to scalp |
| | PET- Position emission Tomography- radioactive tracer to show metabolic activity of tissues/organs |
| | MRI- Magnetic Resonance Imaging. Magnet and radio waves to create image of tissues/body |
| | fMRI- functional MRI-brain imaging technology, detects brain activity by measuring blood flow change |
| | TMS (Transcranial magnetic stimulation)- brain stimulation with magnetic field to induce electric current |
| | in the brain. Used in depression. |
| Brain stem | controls functions – heart rate, breathing, swallowing, vomiting, urination, orgasm |
| | Midbrain, Pons, Medulla oblongata |
| Cerebullum | coordinate movement and balance |
| Hypothalamus | regulates body functions, body temperature, body rhythms, blood pressure, blood glucose, |
| | influences basic motived behaviors. |
| Thalamus | gateway to brain, receives all incoming sensory information before reaching cortex |
| Hippocampus | brain structure this is associated with the formation of memories. |
| Amygdala | vital role in learning to associate things with emotional responses and in processing emotional info |
| Basal Ganglia | Subcortex structures important in planning and production of movement. |
| Cerebral cortex | Outer layer of brain tissue, convolutes surface of the brain- thoughts, perceptions, complex behaviors |
| Corpus Callosum | bridge of millions of axons that connect the hemispheres of the brain, flow between them |
| Frontal Lobe | important in movement, higher-level psychological processes associated with the prefrontal cortex. |
| Prefrontal cortex | directs and maintains attention, keeping ideas in mind. Indispensable for rational activity |
| | Important for social life, thinking, behaving to cultural norms, contemplations of one’s existence. |
| | sense of self, capacity to empathize with others or feel guilty about harming them |
| damage here causes people to have disturbances in ability to get along with others. |
| Brain communication with body | |
| Sympathetic | Parasympathetic | Eyes: dilate | contract |
| action | rest | Lungs: relaxes | constricts |
| | Heart: accelerates | slows |
| | ST/LI: inhibit digestion | stimulates activity |
| | Blood vessels of internal organs: contracts | dilates |
| Brain plastcity | critical periods of development to proceed normally, brain is constantly changing |
| | decreases with age but can grow new neural connections, grow new neurons |
| | rewiring and growth in the brain represents biological basis of learning. |
| | Strengthen of existing connections. Fire together, wire together. |
| | Burning in of experience, ingraining of habits, has to do with minds recall and tendence to behave |
| | New growth is a major factor in recovery from brain injury. |
| neurogenesis | new neuron growth in pars of brain like hippocampus (storage of new memories) |
| Social environment can affect brain plasticity, neurogenesis may underly neural plasticity |
| Consciousness | One’s subjective experience of the world resulting from brain activity |
| | Natural variations in consciousness like sleep. It can be manipulated with meditation or drugs. |
| | Attention to surrounds o reflecting on current thoughts. |
| | brain is regulating body temp, controlling breathings, calling up memories |
| | Attention: unified and coherent. A conscious steam of thoughts. Selectively focused |
| | Automatic processes- driving, walking, word understanding |
| | Controlled processes- for complex and novel situations |
| | Selective attention- the gate opens for important information but closes for irrelevant information |
| | Change blindness- attending to little amount of information, perceptions are often inaccurate |
| Unconscious processing influences behavior | Freudian slip– unconscious thought is suddenly expressed at inappropriate time |
| | Subliminal perception- stimuli is processed by sensory systems, because they are subtle, |
| or have short duration, do not reach consciousness. |
| Sleep | Brain regions are still active in sleep, problem solving can occur in sleep |
| | brain activity are regulated in circadian rhythms influenced by light and dark |
| | eyes- suprachiasmatic nucleus- pineal gland- melatonin |
| sleep stages | stage 1: theta waves- drifting off to sleep, sensation of falling asleep, limbs jerk |
| | stage 2- breathing regulates, less sensitive to external stimuli theta waves plus sleep spindles K-complex |
| | stage 3: deep sleep, delta waves, very hard to wake |
| | REM: 90 minutes into sleep, beta wave activity, eyes move, dreaming. |
| | slow wave to REM sleep happens about 5 times a night |
| Altered Consciousness | Hypnosis, meditation and immersion in an action |
| Hypnosis | Hypnosis is when a person is induced by suggestion, experiences a change in memory, |
| | perception or voluntary action. |
| | Often used to help patients quit smoking, deal with chronic pain |
| Meditation | Meditation: concertation on an object, Mindfulness- watch thoughts without examination. |
| Immersion in an Action | Losing self in activities: music while exercising, offers a distraction from physical exertion, bring about energizing |
| | shift in consciousness. |
| | Exercise- people start of with pain and fatigue, but then get euphoric and glorious release of endorphins called: |
| | Runner’s high, a state mediated by physiological shift in consciousness. Religious ecstasy is a example. |
| Flow | Psychological theory of Flow. Flow is a particular kind of experience that is so engrossing and enjoyable |
| | that it is worth doing for its own sake even though it may have no consequences outside of itself. |
| | Flow is the optimal experience in that the activity is absorbing and completely satisfying. |
| | Flow experience, the person loses track of time, forgets their problems, and fails to notice the world around them. |
| | Flow can occur when playing video games, playing sports, or doing satisfying work. |
| Escaping from the self: | Sports or work help people escape thinking about their problems |
| | Expense: getting obsessive, example: playing online games and losing job or marriage. |
| | Self destruction: binge eating, unsafe sex, gambling, drugs and alcohol, extreme of suicide. |
| Behavior of escaping from the problem reduces self-awareness, long term planning, and meaningful thinking. |
| Perception vs Sensation | what do senses tell you? Example grapefruit juice spilled on you |
| | Sensations: detection of physical stimuli and transmission of that information to the brain. Detection in essence. |
| | Sensation is the basic experience of those stimuli. It involves no interpretation of what we are experiencing. |
| | Perception: the brain further processing, organization and interpretation of sensory information. |
| | Perception results in our conscious experience of the world. Essence is useful and meaningful info about sensation. |
| 2- way street processing | Bottom-up: physical features of stimulus. The sensory aspect of a stimulus is processed, the aspect |
| | build up into perception of that stimulus. |
| | Top-down: is how knowledge, expectations or past experiences shape the interpretation of sensory information, |
| | context affects perception. |
| Detection rquires a certain amount of stimulus | Psychologists have trie to understand the relationship between the worlds physical properties and how we |
| | sense and perceive them. |
| | Psychophysics, examines our psychological experiences of physical stimuli. How much physical energy is required |
| | for our sense organs to detect stimulus? |
| | Sensory thresholds: your sensory organs constantly acquire information from your environment. You do not |
| | notice much of this information. It has to surpass some level before you can detect it. |
| | Absolute threshold: is the minimum intensity of stimulation that must occur before you experience a sensation. |
| | It is the stimulus intensity you would detect more often than by chance. |
| | how loudly must someone in the next room whisper for you to hear it? |
| | Difference threshold: sometimes called a “noticeable difference”, is the smallest difference between two stimuli |
| | that you can notice. It is the minimum amount of change required for a person to detect a difference. |
| | example: the louder commercial on TV, a heavier letter in the mail. |
| Signal Detection Theory | Realizing their methods of testing absolute thresholds were flawed, researchers formulates Signal theory. |
| | (had ignored the fact that people are bombarded by competing stimuli, affects judgment and attention) |
| | Theory states that detecting a stimulus is not an objective process. |
| | Detecting a stimulus is instead a subjective decision with two components: |
| | 1) sensitivity to the stimulus in the presence of distractions from other stimulus (e.g. background noise) |
| | 2) the criteria used to make the judgement from ambiguous information. |
| flawed: | |
| Taste | 1 teaspoon of sugar in 2 gallons of water |
| Smell | 1 drop of perfume diffused into entire volume of 6 rooms |
| Touch | A fly’s wing falling on your cheek from a distance of 0.04 inch |
| Hearing | The tick of a clock at 20 feet under quiet conditions |
| Vision | A candle flame seen at 30 miles on a dark, clear night |
| Example: Radiologist. | A radiologist looking for a faint shadow that might signal early-stage cancer. Judgement can be influenced by: |
| | Knowledge about the patient, medical training, experience, motivation, attention. Also by |
| | the awareness of the consequences: being wrong could mean missing a fatal cancer or unnecessary treatment. |
| Sensory Adaption | Our sensory systems are tuned to detect changes in our surroundings. |
| | It is important for us to be able to detect such changes because they might require responses. |
| | It is less important to keep responding to unchanging stimuli. |
| | Sensory adaption is a decrease in sensitivity to a constant level of stimulation. |
| | Example: studying and construction is going on outside, the sounds are loud and disturbing |
| but after a few minutes, the noise seems to have faded in the background, once it stops, you notice the silence. |
| Learning | |
| | Learning is a result of experience. It is relatively enduring change in behavior from experience |
| | Learning occurs when an animal benefits from experience so that its behavior s better adapted to environment |
| | ability to learn is critical for all animals. Survival means knowing which foods are dangerous, |
| | where it is safe to sleep, sounds that signal potential dangers. |
| | Learning is central to almost all aspects of human existence: our basic abilities |
| | Our complex ones like intimate relationships, it shapes many aspects of our life: clothing, music |
| | social rules, cultural values, preserving environment. |
| Types of learning: | Non-associative: the simplest form of learning occurs after repeated exposure to a single stimulus or event. |
| | A response to something in the environment. The change in response to the stimulus is a form of learning. |
| | Associative learning: Understanding how stimuli, or events, are related. You might associate work with pay. |
| | Associations develop through conditioning, a process in which the environmental stimuli and |
| | behavioral responses become connected. |
| | Observational learning: is acquiring or changing a behavior after exposure to another individual performing |
| | the behavior. |
| Habitual vs sensation | Habituation is a decrease in behavioral response after repeated exposure to a stimulus. |
| | we tend to notice new things around us. If something is neither rewarding nor harmful. |
| | habitual leads us to ignore it. |
| | Sensitization is an increase in behavioral response after exposure to a stimulus. The stimuli that most |
| | often lead to sensitization are those that are threatening or painful. |
| | a reduction in neurotransmitter release leads to habituation. An increase in neurotransmitter leads to |
| | sensitization. |
| Conditioning | The essence of learning is understanding associations. We learn these predictive associations through |
| | conditioning, the process that connects environmental stimuli to behavior. Psychologist study two types |
| | of associative learning, classical conditioning and operant conditioning. |
| | Classical or Pavlovian conditioning: a neural stimulus elicits a response because it has become associated |
| | with a stimulus that already produces that response. You learn that one event predicts another. |
| | Unconditioned response: a response that does not have to be learned, such as a reflex. |
| | Uncondtioned stimulus: a stimulus that elicits a response, such as a reflex, without any prior learning. |
| | Conditioned stimulus: a stimulus that elicits a response only after learning has taken place. |
| | Conditioned response: a response to a conditioned stimulus, a response that has been learned. |
| | Acquisition: the gradual formation of an association between the conditioned and unconditioned stimuli. |
| | Extinction: a process in which the conditioned response is weakened when the conditioned stimulus |
| | is repeated without the unconditioned stimulus. |
| Phobia: | Learned components. John B. Watson demonstrated that phobias we learned by conditioning. |
| | Operant conditioning: B.F. Skinner. The learning process in which an actions consequence determine the |
| | likelihood of that action being repeated -> the human or animal makes associations between events |
| | that it can control. Example: the cat, lever and trap door to get to food. |
| General theory of learning, law of effect: | Any behavior that leads to a “satisfying state of affairs” is likely to occur again. |
| | Any behavior that leads to an “annoying state of affairs” is less likely to occur again. |
| | Reinforcement: a reinforcer is a stimulus that occurs after a response and increases the likelihood |
| | that the response will be repeated. Skinner boxu: the mouse will hit lever to get the food. |
| | Shaping: reinforces behaviors. |
| | Primary reinforcers: food and water |
| | Secondary reinforcers: money |
| Positive and negatice reinforcement | Premack principle: a more-valued activity can be used to reinforce the performance of a less-valued activity. |
| | Reinforcement always increases behavior |
| | Positive reinforcement: increases the probability of that behavior being repeated, reward. |
| | Negative reinforcement: increases behavior through the removal of an unpleasant stimulus. |
| | Negative reinforcement example- taking a pill to help a headache. |
| | Continuous reinforcement: a type of learning in which behavior is reinforced each time it occurs |
| | Partial reinforcement: a type of learning in which behavior is reinforced intermittently. |
| Positive and negative punishment | Punishment reduces the probability that a behavior will recur |
| | Positive punishment: decreases the behavior probability through the administration of a stimulus. |
| | usually the stimulus in positive punishment is unpleasant. Receiving a spray of water- positive punishment. |
| | Negative punishment: decreases the behavior probability through the removal of a usually pleasant stimulus. |
| | example- speeding ticket vs license revolved. |
| | People learn from punishment is how to avoid it. Learning how not to get caught for example. |
| | It can lead to negative emotions like fear and anxiety. May be associated with the person administering punishment |
| | One concern is physical punishment teaches the child that violence is an appropriate behavior for adults. |
| | Psychologists today understand why. The neural basis of reinforcement is Dopamine |
| | dopamine is involved in addictive behavior. It is important for the wanting aspect of reward. |
| Observational and Imitation learning | Learn by watching what other people are doing. Observational learning is the acquisition or modification of a behavior |
| | after exposure to another individual performing that behavior, social learning, is a powerful adaptive tool for humans. |
| Modeling | through observation people can learn complex skills through demonstration |
| | The imitation of observed behavior is called modeling. Models are people reproducing behaviors. |
| Modeling is effective only if the observer is physically capable of imitating the behavior. |
| Memory | The nervous systems capacity to retain and retrieve skills and knowledge. |
| | This capacity enables organisms to take information from experiences and store it for retrieval later. |
| | Yet memory does not work like a digital video camera. |
| | Information we store and retrieve are often incomplete, biased, and distorted. |
| | Memory is a process of information, in this model, the ways that memory works are roughly |
| | analogous to the ways computers process information; encoding, storage, and retrieval. |
| | Donald Hebb (1949) proposed memory is the result of alterations in synaptic connections. |
| | memories are stored in multiple regions of the brain that are linked through memory circuits. |
| | When one neuron excites another, some change takes place, that strengthens the connection between 2 neurons. |
| | Firing one neuron becomes increasingly likely to cause firing of the other. Cells that fire together, wire together. |
| | Long-term storage of information results from the development of new synaptic connections between neurons. |
| 3 memory system (Atkinson and Shiffrin) | 1) Sensory memory: temporary memory system closely tied to the senory systems. Fraction of a second. |
| | We are not normally aware it is operating. |
| | A sensory memory occurs when light, sound, odor, taste, or tactile impression leaves a vanishing trance on the |
| | nervous system for the fraction of a second. |
| | Sensory memory enable us to experience the world as a continuous stream rather than discrete sensations. |
| | 2)Working memory– we pay attention and information from sensory memory goes to short term memory. |
| | Short term memory briefly holds a limited amount of information available to use. |
| | Working memory lasts less than half a minute without continuous rehearsing as a way to remember. |
| | Working memory holds about 7 items aka “Memory span”. |
| | Chunking is breaking down information into small chunks. Chunking efficiently helps you remember more. |
| | example: BCPHDNYUMAUCLABAMIT, now try BC PHD NYU MA UCLA BA MIT |
| | 3) Long term memory: relatively permanent storage of memory/information. Longer duration, great capacity, |
| | Practice makes perfect, proficient in any activity. Memory are strengthened with retrieval. |
| | Of the billions of sensory experience and thoughts we have daily we want to store USEFUL info to benefit from exp. |
| | Memory allows us to use information in ways that assist in reproduction and survival. Friends and foes. |
| | Long term memory is based on meaning. Mental representations for complex and abstract ideas, |
| | including beliefs and feelings. Mental representations are stored by meaning. Rehearsal leads to encoding. |
| | Maintenance is simply repeating. Elaborative rehearsal encodes the information in meaningful ways. |
| | Chunking, is good way to encode groups of items for memorization. The more meaningful the chunks |
| | The better they are remembered. Schemas are decisions on how to chunk information. |
| | Schemas provide structures for understanding events in the world. They can bias how info is encoded, |
| | might no work in other environments, you will learn by making mistakes. You interpret |
| things based on your culture or understanding. |
| Network of Associations | Information is stored in Association networks. Concepts are connected through associations: example- red- apple- pear. |
| | Retrieval cue- anything that helps a person recall a memory. Stimulus can recall a memory, a smell for example. |
| | Encoding specificity principle: stimulus can trigger a memory of the experience |
| | Contact-dependent memory- |
| | State dependent memory- remembering something while in a certain mood |
| Mnemonics | Learning aid in memory. Method of loci. |
| Thinking intelligence | Showing intelligence is related to thinking skill |
| | Cognition: mental activity that included thinking and understanding. |
| | Cognitive psychology: 1) knowledge of world is stored in brain in representations. 2)thinking is the mental manipulation of these |
| | representations. We use analogical and symbolic types of mental representations. |
| | analogical: physical characteristics of objects, analogous to the object: clock example- time. |
| | symbolic: abstract mental representations that do not correspond to the physical features of objects or disease. Words, numbers. |
| | Concepts are symbolic representations. Concept is a category or class of related items consisting of mental representations. |
| | Prototype model: the best example or prototype, for that category and others compare to. |
| | Exemplar model: no single best representation. |
| Schema organize information | Schema help us perceive, organize and process information. |
| | Knowledge on how to behave for example a restaurant table vs a poker table. |
| | Stereotypes: cognitive schemas that allow for fast processing based on membership in certain groups. |
| | Script: is a schema that directs behavior over time within a situation. They dictate appropriate behaviors. |
| | What is views as appropriate is shaped by culture. Schemas and scripts that children learn will affect their behavior when older. |
| | They minimize the amount of attention required to navigate familiar environments. |
| | They allow us to recognize unusual/danger situations. |
| How to make decisions | Two groups of theories: Normative and Descriptive |
| | Normative: attempts to define how people should make decisions. People select the choice that yields the largest gain. |
| | Descriptive: attempts to predict how people actually make choices, not to define ideal choices. |
| | Expected utility theory: people make decisions by considering the possible alternatives and choosing the most desirable one. |
| | Heuristics- fast and efficient strategies that help people typically use to make decisions. Often unconsciously. |
| | it is useful partly because it requires minimal cognitive resources and allows us to focus our attention on other things. |
| heuristic thinking | Relative comparison- people use comparison to judge value. Example score of 85 not that bad if class average was 75 and not 95. |
| | Anchoring: tendency in making judgements, to rely on first piece of information encountered or information that comes to mind. |
| | Framing: tendency to emphasize the potential losses or gains from at least one alternative. |
| | representative heuristic- can lead to faulty thinking, putting someone in a category. Ex. Mailman with a background in physics. |
| Affective forecasting | The tendency for people to overestimate how events will make them feel in the future. |
| | Expectations for how decisions will change affective states in the future are powerful forces in decision making. |
| | People are poor estimators and overestimate. Like getting married to be happy. |
| | They overestimate their pain, and underestimate how well they will cope with the event. |
| Paradox of choices | People think the more options they have the better, but when they have too many options, it is hard to make the decision. |
| Intelligence | intelligence is being good at using knowledge to reason, make decisions, make sense of events, solve problems, understand |
| | complex ideas, learn quickly, and adapt to environmental challenges. |
| | intelligence is measured by standardized tests. Psychometric approach to measuring intelligence focuses on how people |
| | perform on standardized tests that assess mental activities. These tests examine what people know and how they solve problems. |
| | Achievement tests: assess people current levels of skill and of knowledge. |
| | Aptitude Test: seel to predict what tasks and even what job people will be good at in the future. |
| | Alfred Binet, theodore simon- intelligence is best understood as a collection of high-level mental processes. |
| | Intelligence scale: tests for measuring each child’s vocabulary, memory, skill with numbers and other mental abilities. |
| | Adults: Wechsler Adult Intelligence scale (WAIS) |
| IQ (Inteligence Quotient) | The concept of mental age, like when a child age 3 yo thinks like a 5 year old. Test score and chronological age. |
| | William Stern- IQ test childs mental age/ childs chronological age x100.example- 5/3 x100= 166. |
| | Intelligence is related to cognitive performance. The speed of neural responses and the sensitivity of the sensory/perceptual sys. |
| | Smart people have quick responses and keen perceptions. Larger and more efficient brains. Not intelligent “a bit slow”. |
| | intelligent scores are closely related to how people process information in working memory. |
| | Attention is the link between working memory and general intelligence. In particular, being able to pay attention, especially |
| | while being bombarded with competing information or distractions, allows a person to stick to task until successful completion. |
| | intelligent people are called brainy. Studies on head circumference to estimate brain size and scores on intelligence tests. |
| | Brain imaging have found significant correlation between the size of selected brain structures and intelligence score tests. |
| Different kinds of intelligence seem to be related to the sizes of certain brain regions. |
| Emotions | emotions, feelings, moods |
| | Emotion: immediate response negative or positive to environmental events or internal thoughts. |
| | Emotions interrupt whatever is happening, they trigger changes in thought and behavior. |
| 3 components | Physiological process- the heart can beat fast or sweating for example. |
| | behavioral responses become connected. Eyes or mouth open wide for example. |
| | Feeling- cognitive appraisal of situation and interpretation of bodily states “I’m scared”. |
| | Feeling is subjective experience of the emotion, but not emotion itself. |
| Moods | Diffuse, long-lasting emotional states that do not have identifiable object or trigger. |
| | Rather than interrupting what is happening they influence thought and behavior. |
| | People in good or bad moods have no idea why they feel the way they do. |
| | Moods refer to peoples vague senses that they feel certain ways. |
| Emotions Vary | Primary: basic emotions are innate evolutionarily adaptive and universal. Anger, fear, sad, disgust, happy, ect. |
| | Secondary: blends of primary emotions like guilt, remorse, submission, shame, love, bitterness, and jealousy. |
| | Emotions are categorized along different dimensions. |
| | Circumplex model. Emotions are plotted along 2 continuums |
| | Valence: how negative and positive they are. |
| | Arousal: how arousing they are like physiological activation- increase in brain activity and automatic response |
| | like blood pressure, sweating muscle tension and more. |
| | positive activation states- Dopamine increase |
| | negative activation state- norepinephrine increase |
| Limbic system | subcortical brain regions are involved in emotions called limbic system (1952) |
| | Today we know many brain structures outside the limbic system are involved in emotion and that many limbic |
| | structures are not central to emotions per se. |
| Insula | Insula: receives and integrates somatosensory signals from the entire body. |
| | It is also involved in the subjective awareness of bodily states, such as sensing the heartbeat or feeling hungry. |
| | Emotions- bodily responses, not surprising that the insula plays an important role in the experience of emotion. |
| | Insula is particularly active when people feel disgust, anger, guilt, anxiety. |
| Amygdala | Amygdala- process emotional significance of stimuli. It generates immediate response emotional/behavioral reactions. |
| | The processing of emotion in the amygdala is a circuit that has developed in evolution to protect from danger. |
| | Important for emotional learning (conditioning) |
| | Amygdala damage- people will not develop conditioned response to fear or dangerous objects. |
| | Brain imaging emotional events increase activity it amygdala, increasing long-term memory for the event. |
| | Amygdala modifies how the hippocampus consolidates memory, especially memory for fearful events. |
| 3 theories of Emtions | James-Lange Theory: bodily changes will happen before feeling. |
| | Cannon-Bard theory: emotions and physical reactions are independent but at same time. |
| Schachter-Singer two factor theory: experience physical changes and applies to cognitive label to explain those changes. |
| Development | Starts in the womb, conception through birth, 9 months and more. |
| | Brain development- brain circuits mature through myelination. Beginning in the spinal cord 1st trimester, |
| | neurons in 2nd trimester. By age 4, 80% has grown to adult size. Use it or lose it. Nutrition affects brain development. |
| | Lack of stimulation undermines brain development. Environment affects brain: stress, poor nutrition, toxins, violence, etc. |
| | Children learn by obtaining informaiton principally thorugh the senses. Sensory capacities allow infants to |
| | observe and evaluate objects and events. Infants use the information gained from perception to try to make sense |
| | of how the world works. |
| | Jean Piaget (1924) watched children make errors and succeed on tasks. 4 stages of development: |
| | 1) Sensorimotor birth to 2 years, 2) Preoperational 2 to 7 years. 3) Concrete operational 7-12 years |
| | 4) Formal operational (12 and up) |
| | Assimilation: new experience is placed into a existing scheme. |
| | Accommodation: a new scheme is created or a existing one is dramatically altered to include new information |
| | that otherwise would not fit into the scheme. |
| Identity: | Children will develop a sense of identity, who he or she is. |
| | identity formation is part of social development where individual is valued and how interact with others. |
| | Eric Erikson (1980) theory of human development that emphasized age-related psychosocial challenges |
| | and their effects on social functioning across the life span. 8 stages with a crisis/confrontation for development. |
| | 1. infancy, 2. toddler, 3. preschool 4, childhood, 5. adolescence 6. young adult 7. middle adult 8. old age |
| | Infancy: trust vs mistrust | children learn the world is safe, people are loving and reliable. |
| | Toddler: autonomy vs shame and doubt | encouraged to explore the environment, independence and self-esteem |
| | Preschool: initiative vs guilt | develop a sense of purpose by taking on responsibilities, capacity for guilt and misdeed |
| | Childhood: industry vs inferiority | work successfully with outers, assessing how others view them, learn to feel competent |
| | Adolescence: Identity vs role confusion | explore different social roles, develop identity |
| | Young Adult: Intimacy vs isolation | Gain the ability to commit to long-term relationships |
| | Middle Adult: generativity vs stagnation | gain a sense of leaving a legacy and caring for future generations |
| Old age: integrity vs despair | sense of satisfaction that they lived a good life and developed wisdom |
| Health and Well Being | there are biological and medical terms for health, psychology appreciates the importance of lifestyle factors. |
| | Health psychology is about well-being, a positive state that is sought by striving for optimal health and life satisfaction. |
| | Health enhancing behaviors are needed to achieve optimal health. |
| 3 factors to health | 1) psychological: thoughts/actions, lifestyle, stress, health beliefs |
| | 2) Biological characteristics: genetic predispositions, exposure to microbes, brain and nervous system |
| | 3) Social conditions: environment, cultural influences, family relationships, social support. |
| Stress | Stress is a response typically unpleasant with anxiety or tension. It is perceived as threatening or demanding. |
| | Stress elicits a coping response, which is an attempt to avoid escape from or minimize the stressor. |
| | One persons stress may be another persons cherished activity for example public speaking. |
| | When too much is expected of us, or when events become worrisome or scary, we perceive a discrepancy |
| | between the demands of the situation and our resources to cope with them. Avoid, escape, or minimize the stressor. |
| | The discrepancy can be real or just an illusion. |
| | Positive and negative life changes are stressful. Two types of stress: Eustress and Distress. |
| | Eustress is the stress of positive events. Example a party you are preparing for. |
| | Distress is the stress of negative events like late for a meeting or stuck in traffic. |
| | Both stresses put strain on the body, the number of stressful events a person experiences predicts health outcomes. |
| | Major life stress: changes or disruptions that strain central areas of people lives, like having a child, or flood, war. Etc. |
| | Daily hassles: small day-to-day irritations and annoyances, driving in heavy traffic, waiting in line. |
| | Daily hassles combined can be compared to a major life change. They pose threat to coping responses wearing down person. |
| Physiology of stress | Stress activates two systems: |
| | 1) fast acting sympathetic nervous system |
| | 2) slow acting response resulting from a complex system of biological events know as hypothalamic-pituitary-adrenal axis (HPA). |
| | Stress begins in the brain with the perception of some stressful event. |
| | Hypothalamus-> sympathetic nervous system -> the adrenal glands to release epinephrine and norepinephrine which |
| | will increase HR, BP, and RR making body ready for action. |
| | They hypothalamus gets to work as well and starts the HPA to secrete Cortisol. |
| | Cortisol will increase glucose in the bloodstream. This helps body prepare to respond to stressor. |
| | Hormones have a long-lasting effect, stress affects the organs after the stressor has been removed. |
| | Stress- brain- hypothalamus (chemical messengers)- pituitary (hormones) – Adrenal glands – Cortisol. |
| | Excessive stress disrupts working memory, an effect that is especially noticeable when the demands on working memory is high. |
| | Chronic stress has also been associated with long-term memory impairments. |
| | Excess cortisol damages neurons in the brain like hippocampus used in long term memory and retrieval from long term memory. |
| | Early childhood stress is a risk factor for developing psychological disorders later in life. |
| | Stress can be passed along from one generation to the next. |
| | The ability to deal with stress effectively is important to survival and reproduction. |
| | “Fight or Flight” response was created to describe how animals deal with an attack. All energy is directed to dealing with the threat. |
| | Within seconds the sympathetic NS response to stressor enables the organism to direct all energy to dealing with the threat. |
| | Women: “Tend-and-befriend” response to stress. Oxytocin a bonding hormone rises in women who tend to be distressed. |
| | General Adaption syndrome: nonspecific stress response (immune goes down, adrenals enlarge, peptic ulcer can occur. |
| | 3 stages: alarm, resistance, exhaustion. |
| | Alarm: emergency reaction that prepares body to fight or flee. |
| | Resistance: body prepares for longer, sustained defense from the stressor. Immunity to infection and disease increases. |
| | Exhaustion: various physiological and immue systems fail, body organs that were weak from stress can fail. |
| | Chronic stress weakens the body and immune system. Decrease lymphocyte production. |
| | Cardiovascular system is affected. Type A personality- competitive, achievement oriented, aggressive, impatient get heart issues. |
| | Type B who is non-competitive, relaxed, easygoing, accommodating are more healthier. |
| Cardiovasular health at risk | People often cope with behaviors that are bad for health like eating, smoking, drugs, alcohol, etc. |
| | Some personality traits like hostility and depression have negative effects on social networks and support. |
| Negative stress directly affects the heart, the sympathetic NS, BP, blood vessels, elevated cortisol, fatty acids, artery plaques. |
| Personality: “persona” aka mask | Combination of genetics, forces in their environments, the life choices they make. |
| | Personality consist of peoples characteristic thoughts, emotional responses, and behaviors. |
| | Personality trait: a pattern of thought, emotion, and behavior that is relatively consistent over time and across situations. |
| | Freud developed psychodynamic theory of personality: Unconscious forces such as wishes, desires, and hidden memories |
| | determine behavior. Many of Freuds ideas are controversial and not well supported by scientific research. But had an |
| | enormous influence over psychological thinking for much of the early history of the field. |
| Conscious/Preconsious/Unconscious | Conscious Awareness is only a small fraction of mental activity |
| | Conscious: thoughts that people are aware of. |
| | Preconscious: not currently in awareness but that could be brought to awareness. |
| | Unconscious: material that the mind cannot easily retrieve. |
| 3 Interacting structures: | Vary in access to consciousness |
| | ID: exists at the most basic level, completely submerged in the unconscious. It operates according to the Pleasure Principle. |
| | Pleasure Principle directs the person to seek pleasure and to avoid pain. |
| | Superego: acts as a brake on the id. Largely unconscious, the superego develops in childhood and is the internalization of |
| | parental and social standards of conduct. It is a rigid structure of morality, or conscience. |
| | Ego: mediates between the id and the superego. It tries to satisfy the wishes of the id while being responsive to the |
| | dictates of the superego. The ego operates by way of the Reality Principle, which involves rational thought and problem solving. |
| | The unique interactions of the id, ego, and superego produce individual differences in personality. |
| | id: instincts vs. Ego: reality vs. Superego: morality. |
| | conflicts between the id and superego lead to anxiety. |
| | The ego copes with anxiety through defense mechanisms. |
| Defense mechanisms | Unconscious mental strategies that the mind uses to protect itself from distress. |
| | Denial: Refusing to acknowledge the source of anxiety. Ex. Il person ignoring medical advice. |
| | Repression: Excluding source of anxiety from awareness. Failing to remember an unpleasant event. |
| | Projection: attributing unacceptable qualities of the self to someone else. Competitive person describing others as XS competitive. |
| | Reaction formation: Warding off an uncomfortable thought by overemphazing the opposite. Ex, a person with |
| | homosexual desires makes homophobic remarks. |
| | Rationalization: Concocting a seemingly logical reason or excuse for behavior that might otherwise be shameful. |
| | ex. A person cheats on Taxes “cause every does it” remarks. |
| | Displacement: shifting the attention of emotion from one object to another. Ex. Person yells at children after a bad day at work. |
| | Sublimation: channeling socially unacceptable impulses into constructive, even admirable behavior. |
| | ex. A sadist becomes a surgeon or dentist. |
| Personality psychology: 5 Factor theory | five basic personality traits: Openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. |
| | Scores on the five have shown to predict a wide variety of different behaviors. |
| | Some cross-cultural differences emerge, Interpersonal relatedness or harmony in China is more important than in the west. |
| | Openness to experience: imaginative vs down-to-earth, likes variety vs likes routing, independent vs. conforming. |
| | Conscientiousness: Organized vs disorganized, careful vs careless, self-disciplined vs weak-willed. |
| | Extraversion: social vs retiring, fun-loving vs sober, Affectionate vs Reserved. |
| | Agreeableness: Softhearted vs ruthless, Trusting vs. Suspicious, Helpful vs uncooperative. |
| | Neuroticism: worried vs calm, Insecure vs secure, Self-pitying vs. satisfied. |
| Biological Trait Theory | Personality traits have two major dimensions: Introversion and Extraversion and emotional stability. |
| | Introversion refers to shy, reserved, and quiet person is. |
| | Extraversion: refers to how sociable, outgoing, and bold a person is. |
| | Emotional stability is the variability in a person’s moods and emotions. |
| | Stability describes consistency in moods and emotions. Similar to neuroticism. A person more emotional is considered neurotic. |
| Psychoticism | a third dimension is a mix of aggression, poor impulse control, self-centeredness, and a lack of empathy. Constraint |
| | Big 5 trait of conscientiousness or how careful and organized someone is. |
| | Neurotic vs emotionally stable and Introvert vs Extrovert. |
| Behavioral Activations system | Proposes that personality is rooted in two motivational functionals: |
| | Behavioral Approach system: sensitivity to rewards, pleasure seeking, positive affect, extraversion. |
| | Behavioral inhibition system- inhibits behavior leading to pain or danger. Sensitive to punishment, increase anxiety. Neurotic. |
| These functions evolved to help people respond efficiently to reinforcement and punishment. |
| Psychological disorders | |
| Types of mental illness: | Anxiety disorders, Bipolar, depressive disorders, Eating disorders, Obsessive-compulsive disorder, sleep-wake disorders |
| psychopathology | sickness or disorder of the mind |
| | Hippocrates- mania, melancholia, phrenitis (mental confusion) based on humors of the body. |
| DSM | Diagnostic and Statistical Manual of mental disorders. Standard of psychology and psychiatry. Etiology and symptoms, treatment. |
| | A client must reach specific criteria to receive particular diagnosis. |
| DSM disorders | Neurodevelopmental disorders like Autism |
| | Schizophrenia spectrum and Psychotic disorders |
| | Bipolar and related disorders |
| | Depressive disorders |
| | Anxiety disorders like panic attacks |
| | Obsessive disorders lke Body dysmorphic disorder |
| | Trauma-Stressor disorders like PTSD |
| | Dissociative disorders like amnesia |
| | Somatic symptoms like conversion disorder |
| | Feeding and eating disorder like Anorexia |
| | Elimination disorders like Enuresis |
| | Sleep-wake disordrs like narcolepsy |
| | Sexual dysfunctions like erectile disfunction |
| | Gender Dysphoria |
| | Disruptive, impulse-control, conduct disorder like Pyromania |
| | Substance and addiction like alcoholism |
| | Neurocognitive disorders like Delirium |
| | Personality disorders like Borderline |
| | Paraphilic disorders like Exhibitionist disorder |
| Mood disorders | When emotions or moods go from being a normal part of daily living to being extreme enough to disrupt peoples |
| | daily living and extreme enough to disrupt ability to work, learn, play, psychological disorder. |
| | Anxiety, phobias, OCD, bipolar. |
| Thought disorders | Disorders that revolve around thinking, losing sense of identity, external forces are controlling their thoughts. |
| | Psychosis- person has a break from reality and what is imagines. Difficult functioning in life. Schizophrenia. |
| | Delusions, hallucinations, disorganized speech, catatonic behavior, negative symptoms. |
| | Persecutory- believing someone is spying on them. |
| | Referential- believing certain objects, events, people have significance to one. |
| | Grandiose- Belief one has great power, knowledge, or talent. |
| | Identity – belief that one is someone else lke Jesus or the President. |
| | Guilt- belief one has caused a terrible sin. |
| | Control- Belief ones thoughts are controlled from external forces. |
| Personality disorders | Personality reflects each persons unique response to their environment. |
| | Interacting and coping is fairly fixed by adolescence. When causing problems in work and social it is personality disorder. |
| | Most people exhibit symptoms of personality disorder like indecisive, self-absorbed, or emotionally unstable. |
| | The behave in maladaptive ways, show extreme level of maladaptation behavior, experience personal distress and |
| | other problems as a result of their behavior. |
| Cluster A: odd and eccentric behavior | Paranoid- tense, guards, suspicious, grudges |
| | Schizoid- socially isolated, restricted emotional expression |
| | Schizotypal- peculiarities of thought, appearance, behavior, |
| Cluster B: Dramatic, emotional, erratic | Histrionic: seductive behavior, need immediate gratification and constant reassurance, rapidly changing moods, shallow emotions |
| | Narcissistic is self-absorbed, expects special treatment, envious of attention to others. |
| | Borderline cannot stand to be alone, intense, unstable moods and personal relationships, chronic anger, drug/alcohol use |
| | Antisocial are manipulative, exploitative, dishonest, disloyal, lack guilt, break social rules, often in trouble with the law. |
| Cluster C: anxious or fearful | Avoidant are easily hurt and embarrassed, few close friends, sticks to routines to avoid new and stressful situations. |
| | Dependent wants others to make decisions, needs constant advice and reassurance, fears being abandoned. |
| | Obsessive compulsive are perfectionistic, overconscientious, indecisive, preoccupied with details, unable to express affection. |
| Childhood disorders | Intellectual disabilities like reasoning problems, problem solving, planning, learning, social participation |
| | Communication disorders are deficits in language, speech, communication, stuttering, failure to follow social rules |
| | Autism spectrum disorder- impairment in social interaction, unresponsiveness, impaired language, |
| | ADD.ADHD: a pattern of hyperactivity, inattentive, impulse behavior that causes social or academic impairment. |
| | specific learning disorders – difficult learning, low scores in math, reading, written expression, intelligence. |
| | Motor disorders- recurrent motor and vocal tics that cause marked distress or deficits in developing coordinated motor skills. |