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Midterm CH1-CH5
Notes
295
Psychology
Undergraduate 1
10/16/2008

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Term
psychology
Definition
science that seeks to explain behavior and mental processes
Term
cognitive psychology
Definition
study of basic mental processes: sensation, perception, meaning
Term
biological psychology
Definition
study of physical and chemical changes involved in behavior and mental processes
Term
developmental psychology
Definition
changes in behavior over time
Term
quantitative psychology
Definition
uses statistics to analyze data
Term
clinical psychology
Definition
abnormal and normal behavior disorders
Term
school psychology
Definition
testing and diagnosing children
Term
social psychology
Definition
how people interact and influence each other
Term
industrial psychology
Definition
work productivity, satisfaction of workers
Term
structuralism
Definition
to study conscious experience and its structure, looking at each separate element
Term
introspection
Definition
"to look within" method of structuralism- what people observe about
Term
functionalism
Definition
William James
- study of how mind works in allowing an organism to adapt to environment
Term
behaviorism
Definition
Skinner Watson
- study observable behavior and why we do things
- learn by reward and punishment
Term
biological approach
Definition
emphasizes activity of the nervous system, especially of the brain, the actions of hormones and chemicals
Term
evolutionary approach
Definition
emphasizes the ways behavior is adapted for survival
Term
psychodynamic approach
Definition
emphasizes internal unconscious conflicts, involving sexual or aggressive instincts
Term
behavior approach
Definition
emphasizes learning, especially with rewards and punishment
Term
cognitive approach
Definition
emphasizes mechanisms through which people receive, store, and retrieve info
Term
humanistic approach
Definition
emphasizes individual potential for growth and the role of unique perceptions
Term
individualistic culture
Definition
emphasis on the individual (America)
Term
collectivist culture
Definition
importance of group above individual (Japan)
Term
hypothesis
Definition
specific testable statement
Term
variables
Definition
specific factors we are measuring
Term
operational definitions
Definition
defining the terms
Term
reliability and validity
Definition
we are measuring what we say we are
Term
theory
Definition
an in depth explanation, resulted by research
Term
naturalistic observation
Definition
watch things, record
-limitations: people act differently while being watched, person watching has to be well trained, no bias, cant draw conclusions between cause and effect
Term
case studies
Definition
- in depth examination of a specific subject
- limitations: findings may not be a general representation of people
- observer bias
Term
visual agnosia
Definition
- unable to interoperate things that are being seen
- needs a more in-depth look, very rare
- "man who mistook his woman for a wife"
Term
surveys
Definition
administer a question to a large number of people, self reporting, asked to describe behavior, attitudes, or beliefs
-limitations: validity has to do with wording the question, who is surveyed and who responds
Term
correlation study
Definition
examines relationship between variables and factors
- describe data more fuly
Term
correlation coefficient
Definition
shows how strong variables are related, in certain direction
-limitations: shows relationship but not why or how, doesnt decribe cause and effect, correlation DOES NOT equal causation
- 0-1.00 + or - as one variable increases,the other decreases
Term
experiments
Definition
only way to test cause and effect, manipulate one variable (ind) to see effect of another variable (dep)
- ex. hours spent studying (ind), grade on exam (dep)
Term
experimental group
Definition
given the experience of interest
Term
control group
Definition
does not receive experience
Term
confounding variable
Definition
other factors that might influence the dependent variable
Term
random variables
Definition
uncontrollable factors
Term
participant/experimenter expectations
Definition
placebo effect, experimenter bias, use double-blind study to reduce impact
Term
double-blind study
Definition
when both the experimenter and experimentee don't know which group (either control or experimental) they are in
Term
random sample
Definition
everyone has equal chance of being chosen
Term
bias sample
Definition
not an equal chance
Term
representative sample
Definition
chosen so the participants characteristic match the population
Term
descriptive statistics
Definition
percentages or a mean
Term
inferential statistics
Definition
use math to draw conclusions about what data means
- something is statistically significant when the odds are greater than chance
Term
nervous system
Definition
a network of billions of cells that detects what is going on inside or outside the body and guides appropriate responses
Term
3 functions of nervous system
Definition
-receive info (input)
- integrate the info with past experiences (processing)
- to guide actions (output)
Term
neurons
Definition
specialized cells of the nervous system that send and receive messages
Term
glial cells
Definition
- hold neurons together and help them communicate with each other
- capable of forming new, specialized cells
Term
axon
Definition
a fiber that carries signals away from the cell body
Term
dendrites
Definition
fibers that receive signals from the axon of other neurons
Term
action potential
Definition
the electrochemical impulse or message that is sent down an axon and stimulates release of a neurotransmitter
Term
refractory period
Definition
a short recovery time after cell firing, during which the cell cannot fire again
Term
neurotransmitter
Definition
a chemical that transfers messages across synapses
Term
synapse
Definition
the tiny gap between the axon of one neuron and the dendrites of another
Term
receptor
Definition
proteins on the cell memebrane that recieve chemical signals
Term
communication between neurons
Definition
- action potential shoots down the axon, away from the soma
- a neurotransmitter is released into the synapse, and the dendrites detect it
- if there is a receptor for this neurotransmitter on the dendrites, the neurotransmitter and receptor bind = an electrochemical signal
- if the signal is strong enough, it spreads down the dendrites and across the soma or the next neuron, and cycle begins again
Term
central nervous system (CNS)
Definition
the brain and spinal cord
Term
peripheral nervous system
Definition
the part of the nervous system that sends messages to and from the CNS
Term
somatic nervous system
Definition
-subsystem of the peripheral nervous system
- transmits info form the senses to the CNS and carries signals form the CS to the muscles that move the skeleton
Term
autonomic nervous system
Definition
-subsystem of the peripheral nervous system
-carries messages between the central nervous system and the heart, lungs, and other organs and glands in the body
Term
sympathetic nervous system
Definition
-subsystem of the autonomic nervous system
- readies the body for vigorous activity, flight or fight response
Term
parasympathetic nervous system
Definition
influences activity related to the protection, nourishment, and growth of the body, restarts system and calms you down
Term
nuclei
Definition
clusters of nerve cell bodies in the central nervous system
Term
fiber tracts
Definition
bundles of axons that travel together
Term
spinal cord
Definition
the part of the CNS that receives info from the senses, passes these signals to the brain, and sends messages from the brain to the body
Term
reflexes
Definition
simple, involuntary, unlearned behaviors directed by the spinal cord without instructions from the brain
Term
measures brain activity
Definition
EFG, PET, SPECT, MRI, TMS
Term
hindbrain
Definition
- portion of brain
- continuation of spinal cord
- contains: medulla, reticular formation, cerebellum
Term
medulla
Definition
- in hindbrain
-controls vital automatic functions
- regulates breathing, heart rate, blood pressure
Term
reticular formation
Definition
- in hindbrain
- collection of fibers and cells
- regulates arousal and attention
- also extends into midbrain
Term
cerebellum
Definition
- in hindbrain
-controls finely coordinated movements and certain cognitive processes, balance
Term
midbrain
Definition
- small region between hindbrain and forebrain
- replays sensory signals to forebrain
- creates automatic responses to certain stimuli
- helps produce smooth movements
Term
forebrain
Definition
- responsible for the most complex aspects of behavior and mental life
- includes: thalamus, hypothalamus, amygdala, hippocampus, cerebral cortex, corpus callosum
Term
Finius Gabe
Definition
- a railroad spike went through his jaw and through his frontal lobe
- removed frontal lobe
- had a complete personality change and became a jerk
Term
thalamus
Definition
- in forebrain
- interprets and relays sensory info
Term
hypothalamus
Definition
-in forebrain
- regulates hunger, thirst, and sex drives
Term
amygdala
Definition
- in forebrain
- connects sensations and emotions
Term
hippocampus
Definition
- in forebrain
- forms new memories
Term
cerebral cortex
Definition
- outer surface of the forebrain
- analyzes sensory info, controls voluntary movements, abstract thinking
- contains: gyri, sulci, sensory cortex, motor cortex, association cortex
Term
gyri
Definition
- cerebral cortex
-ridges on the brain
Term
sulci
Definition
- cerebral cortex
- valleys
Term
corpus callosum
Definition
- in forebrain
- transfers info between the 2 cerebral hemispheres
Term
sensory cortex
Definition
- part of cerebral cortex
- located in the parietal, occipital, and temporal lobes
- receives info form the skin, eyes, and ears
- contains: auditory cortex, visual cortex, somatocensory cortex
Term
auditory cortex
Definition
- sensory cortex
- temporal lobe
- hearing
Term
visual cortex
Definition
- sensory cortex
- occipital lobe
- vision
Term
somatocensory cortex
Definition
- sensory cortex
- parietal lobe
- interprets sensations
-humuculus
Term
humuculus
Definition
what we would look like if the parts of our body were the sizes representing how sensitive it is
Term
4 lobes
Definition
- frontal
- temporal
- parietal
- occipital
Term
frontal lobe
Definition
planning, inhibition, organization of behavior, executive functioning
Term
temporal lobe
Definition
processing auditory input: speech, visual recognition
Term
parietal lobe
Definition
integrating, processing things in environment, motor output
Term
occipital lobe
Definition
vision
Term
motor cortex
Definition
- part of cerebral cortex
- controls voluntary movement
Term
association cortex
Definition
- part of cerebral cortex
- integrate sensory and motor info
Term
prefrontal cortex
Definition
understand sarcasm and irony
Term
Broca's Area
Definition
-production of language
- Broca Aphasia
Term
Broca Aphasia
Definition
can understand but can't produce language
Term
Wernicke's Area
Definition
- receptive language
- Wernicke Aphasia
Term
plasticity
Definition
a property of the CNS that hasthe baility to stengthen connections at syanpses, as well as to establish new connections
Term
Brain Lateralization
Definition
- left hemisphere: language and controls right side of the body
- right hemisphere: recognizes faces and controls left side of body
- connected by corpus collosum, if severed can see things on left side of visual field but cannot name it
Term
neurotransmitters
Definition
-chemical that transfers info across the synapse as a result of an action potential
- 3 types: small molecules, peptides, gases
Term
acetylcholine
Definition
- nerotransmitter
- movement, memories
- Alzheimer's
Term
norepinepherine
Definition
-neurotransmitter
- mood, arousal, learning
- depression
Term
serotonin
Definition
- neurotransmitter
- mood, impulsivity
- depression, aggression
Term
dopamine
Definition
- neurotransmitter
- mood, movement, pleasure
- Parkinson's
Term
GABA
Definition
- neurotransmitter
- inhibitory, sleep
- anxiety, epilepsy
Term
glutamate
Definition
- neurotransmitter
- memory
- damage after stroke
Term
endorphins
Definition
- neurotransmitter
- pain control
Term
brain damage
Definition
- adult brains can't replace damaged cells
- fetal brain tissue grafts
- nuetral stem cells
- mental and physical exercise regimens
Term
endocrine system
Definition
- directed by brain
- glands communicate via hormone secretion into the bloodstream
- target organs have specific receptors to detect specific hormones
- hypothalamus controls the pituitary gland
Term
pituitary gland
Definition
controls endocrine system
Term
flight-or-fight response
Definition
- threat!
- hypothalamus
- pituitary gland
- ACTH (adrenocorticotropis hormone)
- adrenal gland
- cortisol
Term
types of sleep
Definition
- REM sleep
- slow-wave sleep
Term
REM sleep
Definition
- paradoxical sleep
- dreaming
- muscles are paralyzed
Term
slow-wave sleep
Definition
- not REM
- 4 stages
Term
sleep stages
Definition
- Stages 1 & 2
- Stages 3 & 4
- REM
- Stage 2
Term
stages 1 & 2
Definition
respiration and heart rate slows, blood pressure decreases, brain waves become slower and higher
Term
stages 3 & 4
Definition
- brain waves are slow and high
- difficult to awaken
Term
sleep disorders
Definition
- insomnia
- narcolepsy
- sleep apnea
- Sudden Infant Death Syndrome (SIDS)
- sleepwalking
- nightmares
- night terrors
- REM behavior disorder
Term
insomnia
Definition
incapability to fall alseep
Term
narcolepsy
Definition
go from awake to REM sleep
Term
sleep apnea
Definition
stop breathing briefly while sleeping and wake up and start again
Term
Sudden Infant Death Syndrome (SIDS)
Definition
- most common cause for infant death
- accidental suffocation
Term
sleepwalking
Definition
- non-REM sleep
- common in childhood -> grow out of it
Term
nightmares
Definition
occur in REM sleep
Term
night terrors
Definition
- occurs during stage 4
- wake up terrified but won't remember
- sleepwalking
Term
REM Behavior Disorder
Definition
- muscles paralyzed during regular REM
- muscles act out dreams
- can be treated with medication
Term
function of sleep
Definition
- no sleep = impact on judgement, reaction time, ability to learn
- can cause death
- microsleeps
Term
microsleeps
Definition
when you fall asleep for seconds at a time without realizing it
Term
importance of non-REM sleep
Definition
- restores energy stored in the brain and body
- consolidates new learning
Term
importance of REM sleep
Definition
- too little REM sleep causes REM rebound
- restores our sensitivity to norepinepherine
- creates and strengthens synaptic connections
Term
dreams
Definition
- several each night
- occur during REM sleep
- daytime activities may influence the content of dreams (lucid dreaming)
- dream for: wishfulfillment, activation synthesis theory
Term
lucid dreaming
Definition
sleeper is aware that they are in a dream while dreaming
Term
Activation Synthesis Theory
Definition
- meaningless byproducts of REM sleep
- hindbrain arousal during REM ceates random messages that activate the brain, especially the cerebral cortex
Term
senses
Definition
translate external information into nervous system activity
Term
sensations
Definition
are sensory information
Term
perception
Definition
the process of turning sensation into meaningful experiences
Term
sensory systems
Definition
- each system take in a specific type of energy
- energy must be modified by an accessory structure
Term
transduction
Definition
- process of converting energy into activity
- receptors initiate an action potential
- sensory neurons deliver message to the brain
- thalamus processes the info, then sends it to the cortex for additional processing
Term
sensory energy
Definition
- light and sound energy are in the form of waves
Term
properties of wave
Definition
- wavelength
- frequency
- amplitude
- determine what is sensed
Term
wavelength
Definition
the distance between peaks in a wave of light or sound
Term
frequency
Definition
the number of complete waves,or cycles, that pass a given point per unit of time
Term
amplitude
Definition
the distance between the peak and the baseline of a wave
Term
coding
Definition
translates the physical characteristic of a stimulus into a pattern od neural activity
Term
sensory receptors
Definition
respond to most changesinteh system
Term
adaptation
Definition
a decreasing level of responsiveness to a constant stimulus
Term
absolute threshold
Definition
minimum amount of stimulus energy that can be detected 50% of the time
Term
internal noise
Definition
- sponatneous, random firing of nerve cells that occur because the nervous system is always active
- may be mistakena as a stimulus
Term
response criterion
Definition
internal rule a person uses to decide whether or not to respond to a stimulus
Term
signal detection theory
Definition
what determines the report of a near threshold stimulus
Term
sensitivity
Definition
- ability to detect a stimulus
- influenced by internal noise, stimulus intensity, and sensory capacity
Term
Weber's Law
Definition
- the smallest noticeable difference is in proportion to the original stimulus
Term
Just-Noticeable Difference (JND)
Definition
- the smallest detectable difference ina stimulus
- differs between senses
Term
sight
Definition
- light
- sensation depends on intensity and wavelength
Term
focusing light
Definition
- the eye
- accessory structures modify incoming light waves
Term
accomodation
Definition
muscles adjacent to the lens cause it to change shape to focus images at different distances
Term
converting light to images
Definition
- retina
- photoreceptors
- rods
- cones
Term
retina
Definition
surface atthe back of the eye onto which light rays enter the eye
Term
photoreceptors
Definition
convert light energy to neural activity
Term
rods
Definition
- extremely sensitive to light
- unable to discriminate color
- dark adaptation
Term
cones
Definition
- contain 3 kinds of light sensitive chemicals
- discriminates color
- more light-sensative than rods
Term
from retina to the brain
Definition
- rods and cones connect with bipolar and ganglion cells in the retina
- axons of ganglion cells form the optic nerve (half of optic nerve fibers cross over theoptic chiasm)
- optic nerve synapse in the thalamus
- thalamus sends info to the occipital lobe
- primary visual cortex sends info to association areas of the brain
Term
optic nerve
Definition
bundle of fibers that carries visual info to the brain
Term
ganglion cells
Definition
Term
color
Definition
- hue
- saturation
- brightness
Term
hue
Definition
the essential color determines by the dominant wavelength of a light
Term
saturation
Definition
the purity of color
Term
brightness
Definition
the overall intensity of the wavelengths making up light
Term
theories of color vision
Definition
- Trichromatic theory
- Opponent-process theory
Term
Trichromatic theory
Definition
- mixing blue, green, and red light produces all colors
- evidence: 3 types of cones in the retina; color is determined by the ratio of cones' activities
Term
Opponent-process theory
Definition
- color-sensitive elements are organizedin pairs
- pairs inhibit each other
- pairs: red-green, blue-yellow, black-white
Term
colorblindness
Definition
- lack of one or more of the color-sensitive pigments in the cones
- more common in males
Term
structures of the eye
Definition
- cornea
- pupil
- iris
- lens
Term
cornea
Definition
the curved, transparent, protective layer through which light rays enter the eye
Term
pupil
Definition
an opening in the eye, just behind the cornea, through which light passes
Term
iris
Definition
- part of the eye that gives it its color
- adjusts the amount of light entering it
Term
lens
Definition
part of the ye directly behind the pupil
Term
sound
Definition
a repetitive fluctuation in the pressure of a medium such as air
Term
loudness
Definition
a psychological dimensionof sound determined by the maplitude of a sound wave
Term
pitch
Definition
- how high or low a tone sounds
- depends on frequency of a sound wave
Term
timbre
Definition
the quality of a sound that identifies it
Term
pinna
Definition
- the crumpled part of the outer ear
- collects sound waves
Term
eardrum
Definition
- tightly stretch membrane inthe middle ear that generates vibrations that match the sound waves striking it
- also known as tympanic membrane
Term
cochlea
Definition
a fluid-filled spiral structure in the inner ear in which auditory transduction occurs
Term
basilar membrane
Definition
floor of the fluid-filled duct that runs through the cochlea
Term
auditory nerve
Definition
bundle of axons that carries messages fromthe hair cells of the cochlea to the brain
Term
hearing theories
Definition
- Place theory
- Volley theory
Term
Place theory
Definition
states taht hair cells at a particular place on the basilar membrane respond to a particular frequency of sound
Term
Volley theory
Definition
- states that the firing rate od a auditory nerve matches a sound wave's fequency
- also called frequency-matching theory
Term
conversion of sound frequencies into neural activity
Definition
frequencies are coded by the location of the hair cells receiving the greatest stimulation(place theory) and by the combined firing rate of neurons (volley theory)
Term
ear to the brain
Definition
- auditory nerve to the thalamus
- thalamus to primary auditory cortex
- auditory cortex examines patterns of info from the auditory nerve, allowing us to sense loudness, pitch, and timbre
Term
sensing touch
Definition
stimulus is direct pressure or bending of hairs
Term
coding touch information
Definition
- intensity of the stimulus affects firing rate of individual neurons and the number firing
- location of touch is coded by location of nerves
Term
sensing temperature
Definition
most neurons responding to touch also respond to changes in temperature
Term
pain
Definition
- free nerve endings that start at the spinal cord and end and the skin
- axons of pain neurons release neurotransmitters at the spinal cord and the skin
-
Term
congenital insensitivity to pain
Definition
don't feel any pain
Term
type of nerve fibers
Definition
- A-delta Fibers
- C-fibers
Term
A-delta Fibers
Definition
- 1st activated
- sharp pain, cutting sensations
Term
C-fibers
Definition
- 2nd activated
- chronic dull aches, burning sensations
Term
Gate Control Theory of Pain
Definition
- spinal cord is able to shut off pain communication to the brain
- competing input form other senses can take over pain pathways
- brain is able to block signals at the spinal cord
- analgesia
Term
analgesia
Definition
- reduction in the sensation of pain in the presence of a normally painful stimulus
- produced by endorphins
Term
perception
Definition
how we put meanings to our feelings
Term
Principles of Perceptual Organization
Definition
- Figure and Ground
- Grouping
Term
Figure and Ground
Definition
- Certain objects or sounds automatically become identified as figure, whereas others become meaningless background
- ex: You see a person standing against a building, not a building with a person-shaped hole in it
Term
Grouping
Definition
- Properties of stimuli lead us to automatically group them together
- proximity, similarity, continuity, closure, common region, connectedness
- ex: People who are sitting together, or who are dressed similarly, are perceived as a group
Term
proximity
Definition
the closer the objects or events are to one another, the more likely they are to be perceived as belonging together
Term
similarity
Definition
similar elements are perceived to be part of a group
Term
continuity
Definition
sensations that appear to create a continuous form are perceived as belonging together
Term
closure
Definition
- we tend mentally "fill in" missing parts of incomplete objects
- the gaps are easy to see but the tendency to link disconnected parts can be so strong that you may perceive faint connections that are not actually there
Term
common region
Definition
- stimuli located within some boundary tend to be grouped together
- the boundary can be created by an enclosing perimeter
Term
connectedness
Definition
stimuli that are connected by other elements tend to be grouped together
Term
depth perception
Definition
perception of distance, allowing us to experience the world in 3 dimensions
Term
biological depth perception
Definition
- accommodation cues
- conversion
- Binocular Disparity
Term
accommodation cues
Definition
Term
conversion
Definition
a depth cue resulting when the eyes rotate to project the image of an object on each retina
Term
Binocular Disparity
Definition
a depth cue based on the difference between the retinal images received by each eye
Term
stimulus cues for depth and distance
Definition
- interposition
- relative size
- linear perspective
Term
interposition
Definition
closer objects block the view of things farther away
Term
relative size
Definition
if 2 objects are assumed to be about the same size, the object producing a larger image on the retina is perceived as closer than the one producing a smaller image
Term
linear perspective
Definition
- when parallel lines recede into the distance they appear to converge as a single point
- closer together 2 converging lines are, the greater the perceived distance
Term
perceptual constancy
Definition
- certain things stay constant, regardless of changes in their image
- size
- shape
- brightness
Term
bottom-up processing
Definition
- relies on specific, detailed information, from the senses
- feature detector cells identify basic features that are combined to create the sensory experiences
- ex: recognize dog by its features
Term
top-down processing
Definition
- experience, context, and expectations are imposed on a stimulus
- schemas
- ex: in the dark a blob pulling a leash is recognized as a dog because that it is where we expect a dog to be
Term
schemas
Definition
mental representations of what we know and expect about the world
Term
learning
Definition
- a stable change in behavior due to experience
- fundamental principles are: classical conditioning, operant conditioning
Term
classical conditioning
Definition
Pavlov's dogs
Term
Pavlov's dogs
Definition
- why Pavlov's dogs salivate when there isn't any food
- food presented, dog salivates
- tone presented, dog doesn't salivate
- food and tone presented, dog salivates...
- ... tone presented, dog salivates
Term
before classical conditioning
Definition
- unconditioned stimulus (UCS): food = unconditioned response (UCR): salivation
- neutral stimulus: tone = orienting response: head turn
Term
during classical conditioning
Definition
conditioned stimulus (CS): tone + UCS: food = UCR: salivation
Term
after classical conditioning
Definition
CS: tone = conditioned response (CR): salivation
Term
conditioned responses over time
Definition
- CS and UCS are repeatedly paired, the CR is gradually acquired
- continued pairings strengthen the CR
Term
what happens if you present the CS repeatedly, but not the UCS
Definition
- extinction
- spontaneous recovery
- reconditioning
Term
spontaneous recovery
Definition
present CS after time delay
Term
reconditioning
Definition
- present the CS and UCS again
- quicker than original conditioning
Term
stimulus generalization
Definition
- CS is triggered by a similar stimulus
- ex: Little Albert is scared of anything white when it was associated with a loud sound
Term
stimulus discrimination
Definition
different among similar stimuli
Term
forming and strengthening conditioned response (CR)
Definition
- timing
- predictability
- intensity
- attention
- biopreparedness
- second-order conditioning
Term
timing
Definition
CS immediately precedes the UCS
Term
predictability
Definition
CS always signals the uCS, and only the UCS
Term
predictability
Definition
CS always signals the uCS, and only the UCS
Term
intensity
Definition
strong UCS
Term
attention
Definition
when multiple stimuli are present, the most closely attended becomes the CS
Term
biopreparedness
Definition
natural tendency for certain stimuli to become a CS
Term
second-order conditioning
Definition
CS can operate as UCS
Term
classical conditioning in action
Definition
- bomb-sniffing dogs
- phobias
Term
phobias
Definition
- acquisition
- treatment
- systematic desensitization
- habituation
Term
acquistition
Definition
Term
systematic desensitization
Definition
- planned way to break phobia
- start with the least threatening form of the phobia and work way up
Term
habituation
Definition
- after repeated pairings you no longer experience UCS
Term
drug addiction
Definition
- habituation
- opponent-process theory
Term
opponent-process theory
Definition
- environmental stimuli
- once you enter the environment your body starts to react
- take more cause your body hasn't started to react yet = overdosing
- overdosed mostly caused by changing environment
Term
operant (instrumental) conditioning
Definition
- Thorndike's Puzzle Box
- Skinner Box
Term
Thorndike's Puzzle Box
Definition
- cat gets food if it presses a certain lever
- law of effect
Term
law of effect
Definition
if a response made in the presence of a stimulus is rewarded, it is likely to happen again when the stimulus is presented
Term
Skinner Box
Definition
- dog is put in a box and one side get electrified
- the dog jumps over as a reaction
- key in investigating operant conditioning
Term
components of operant conditioning
Definition
-operant response (OR)
- reinforcer
- escape conditioning
- avoidance conditioning
- stimulus discrimination
- stimulus generalization
Term
operant response (OR)
Definition
has an effect on the world
Term
reinforcer
Definition
- increases behavior, never decreases
- stimulus increases the probability that the OR will reoccur
Term
positive reinforcer
Definition
increases behavior by giving something (+)
Term
negative reinforcer
Definition
increases behavior by taking something away (-)
Term
escape conditioning
Definition
- process of learning a response to stop an aversive stimulus
- ex: dog can jump over to the other side of the box to stop the shock
Term
avoidance conditioning
Definition
- process of learning a response to avoid an aversive stimulus
- difficult to unlearn because it is reinforced by fear reduction
- ex: dog hears tone before the floor is shocked, learns to jump right after it hears the tone
- escape first, avoidance second
Term
stimulus discrimination
Definition
- when a response is performed in the presence of one stimuli, but not another
- response is under stimulus control
- ex: between Monet and Picasso, only hit bar for Monet and ignore Picasso
Term
stimulus control
Definition
Term
stimulus generalization
Definition
- perform a response in the presence of a stimulus that is similar to, but not exactly like, the stimulus that has worked in the past
- conditioned neuroses
- ex: dogs would get food when circle was presented by pressing a bar, but when an ellipse was shown they got nothing; made the circle and ellipse more alike to each other; then unrecognizable and the dogs went crazy
Term
forming and strengthening operant responses (ORs)
Definition
- shaping
- secondary reinforcement
- time
- intensity
- schedules of reinforcement
Term
shaping
Definition
reinforcing successive approximations
Term
successive approximations
Definition
Term
secondary reinforcement
Definition
if you pair neutral stimuli with reinforcing stimuli, the neutral stimuli becomes reinforcing
Term
time
Definition
works best with minimal delay before reinforcer
Term
intensity
Definition
conditioning with larger reinforcer
Term
schedules of reinforcement
Definition
- continuous reinforcement schedule
- partial (intermittent) reinforcement schedule
- extinction
- partial reinforcement extinction effect
Term
continuous reinforcement schedule
Definition
- impractical
- can't always be there to give reinforcement
- impractical to do it for every single behavior
- run out of reinforcement
Term
partial (intermittent) reinforcement schedule
Definition
- fixed ratio (FR)
- variable ratio (VR)
- fixed interval (FI)
- variable interval (VI)
Term
fixed ratio (FR)
Definition
- reinforcement follows a fixed number of responses
- i.e., FR 10
Term
variable ratio (VR)
Definition
- reinforcement follows a variable number of responses
- i.e., VR 30; gambling
Term
fixed interval (FI)
Definition
- reinforces the first response occurring after a fixed time has past after last reward
- i.e., FI 60
Term
variable interval (VI)
Definition
- reinforces the first response after some period of time, which varies
- i.e., VI 20
Term
extinction
Definition
- failure to reinforce a response will eventually extinguish it
- extinction burst
- spontaneous recovery
-Partial Reinforcement Extinction Effect
Term
extinction burst
Definition
increase in duration and severity
Term
spontaneous recovery
Definition
- cycle starts all over
- ex: kid stop throwing tantrums when wanting a candy, the throws one tantrum, you give them the candy, and the cycles starts over
Term
Partial Reinforcement Extinction Effect
Definition
Term
what makes a reinforcer reinforcing?
Definition
- satisfy basic physiological needs
- "pleasure" center" in hypothalamus
- stimulation causes a release of dopamine
Term
punishment
Definition
- reduces frequency of an operant behavior
- presenting an unpleasant stimulus
- removing a pleasant stimulus
Term
drawbacks of punishment
Definition
- does not erase undesirable behavior
- produce unwanted effects
- must be given immediately after the target behavior each time it is performed
- corporal punishment
- lets you know you did something wrong, but doesn't tell you the desired action
Term
corporal punishment
Definition
- physical punishment
- escalation effect
Term
guidelines for using punishment
Definition
- indicate why the punishment is being given
- the behavior is being punished, not the person
- punishment must occur immediately after every occurrence of the target behavior
- identify appropriate alternative behaviors
- reinforce those alternative behaviors
Term
operant conditioning in action
Definition
- parenting
- formation of gender roles
- behavior modification
Term
learned helplessness
Definition
- stop trying to exert control after experience tells you, you have no control
- ex: the dog is put in the box
- both sides are electricuted
- stopped jumping from side to side and laid down
- turned off one side, still laid, turned off both sides, still laid
Term
latent learning
Definition
- Tolman
- rats
Term
Tolman
Definition
- group A: food placed in goal box
- group B: no food
- group C: food only on 11th day
- group C rats got to the food
- developed a cognitive map of the maze
Term
cognitive map
Definition
Term
observational learning
Definition
- learn by watching others
- importance of models
- also called social learning
- vicarious conditioning
Term
Bandura's Bobo Doll Experiment
Definition
- 4 conditions: aggressive model rewarded, aggressive model punished, non-aggressive model, no model
- child left alone in room with Bobo Doll
- kids more aggressive than the others after seeing the aggressive model rewarded
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