Psych Exam 2 Flashcards


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1

classical conditioning

type of learning in which a neutral stimulus comes to elicit a response after being paired with a stimulus that naturally brings about that response

2

learning

a relatively permanent change in behavior that is brought by experience

3

correspondence between learning and performance

not always 1-1, there are factors other than learning like fatigue or lack of effort

4

habituation

the decrease in response to a stimulus that occurs after repeated presentations of the same stimulus

5

Ivan Pavlov

developed the framework for learning called classical conditioning

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Pavlov's experiment

Conditioned a dog to salivate at the sound of a bell instead of the food

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Neutral stimulus

in the dog example, this is the bell

before conditioning, does not naturally bring about the response desired

8

unconditioned stimulus

a stimulus that naturally brings about a particular response without having been learned

the food

9

unconditioned response

a natural innate response that occurs automatically and needs no training

the salvation

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conditioned stimulus

once-neutral stimulus that has been paired with an unconditioned stimulus to bring about a response formerly caused only by the unconditioned stimulus

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conditioned response

conditioned stimulus brings about the conditioned response

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extinction

occurs when a previously conditioned response decreases in frequency and eventually disappears

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spontaneous recovery

is the reemergence of an extinguished conditioned response after a period of time and with no further conditioning

14

stimulus generalization

is a process in which after a stimulus has been conditioned to produce a particular response, other stimuli that are similar to the original stimulus produce the same response

15

stimulus discrimination

occurs if two stimuli are sufficiently distinct from each other such that one evokes a conditioned response but the other does not

16

taste aversion

when the taste of a particular food is associated with unpleasant symptoms such as nausea or vomiting

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operant conditioning

learning in which a voluntary response is strengthened or weakened, depending on the response's favorable or unfavorable consequences.

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Thorndike's Law of Effect

An organism's ability to learn to do something that rewards them over time.

Over time and through experience, the organism would make a direct connection between the stimulus and the response without any awareness that the connection existed.

19

law of effect

which states that responses that lead to satisfying consequences are more likely to be repeated.

20

Reinforcement

the process by which a stimulus increases the probability that a preceding behavior will be repeated

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reinforcer

any stimulus that increases the probability that a preceding behavior will occur again

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primary reinforcer

satisfies some biological need - food, warmth, pain relief

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secondary reinforcer

reinforce in association with a primary reinforcer (like money)

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positive reinforcer

is a stimulus added to the environment that brings about an increase in a preceding response

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negative reinforcer

refers to an unpleasant stimulus whose removal leads to an increase in the probability that a preceding response will be repeated in the future

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punishment

refers to a stimulus that decreases the probability that a prior behavior will occur again

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negative punishment

consists of the removal of something pleasant

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positive punishment

weakens a response by applying an unpleasant stimulus

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schedule of reinforcement

pattern of the frequency and timing of reinforcement that follow desired behavior

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continuous reinforcement schedule

behavior that is reinforced every time it occurs

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partial (intermittent) reinforcement schedule

behavior that is reinforced some but not all of the time it occurs

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extinction

the disappearance of the conditioned response

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fixed ratio schedule

reinforcement given only after a specific number of responses

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variable ratio schedule

behaviors are reinforced after an average number of responses, but exactly when reinforcement will occur is unpredictable

35

fixed interval schedule

provides reinforcement for a response only if a fixed time period has elapsed

36

variable interval schedule

the time between reinforcements varies around some average

37

shaping

is the process of teaching a complex behavior by rewarding closer and closer approximations of the desired behavior.

38

behavior modification

is a technique for increasing the frequency of desirable behaviors and decreasing the incidence of unwanted ones

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goal vs. target behavior

goal "increase study time"

target behavior "to study at least 2 hours per day on weekdays"

40

cognitive learning

focuses on how people think, uses internal thoughts and expectations of learners

41

latent learning

a new behavior is learned but not demonstrated until some incentive is provided for displaying it (occurs without reinforcement)

42

cognitive map

a mental representation of spatial locations and directions

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observational learning

which is learning by watching the behavior of another person or model

behavior of models who are rewarded for a given behavior is more likely to be imitated than that of models who are punished for the behavior.

44

mirror neurons

fire when we observe another person carrying out a behavior suggests that the capacity to imitate others may be innate.

45

motor learning

learning through practice

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relational style learning

learning style using the big picture

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analytical learning style

learning style do best when they first analyze the various components underlying an object

48

sensation

activation of the sense organs (physical response)

49

perception

stimuli are interpreted (psychological response)

50

stimulus

any passing source of physical energy that produces a response in a sense organ

51

psychophysics

study of the relationship between the actual physical aspects of a stimulus and our psychological experience of that stimulus

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absolute threshold

is the lowest intensity of a stimulus that an organism can detect

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noise

background stimulation that interferes with the perception of other stimuli (not just auditory stimuli)

54

difference threshold

the smallest level of added or reduced stimulation required to sense that a change in stimulation has occurred.

55

just noticeable difference

the difference threshold is the minimum change in stimulation required to detect the difference between two stimuli

56

webers law

a just noticeable difference is in constant proportion to the intensity of an initial stimulus (not constant amount)

57

adaptation

an adjustment in sensory capacity after prolonged exposure to unchanging stimuli

due to the inability of the sensory nerve receptors to fire off messages to the brain indefinitely

58

vision

the physical energy that stimulates the eye

59

cornea

a transparent protective window at the front of the eye (curved to bend and refract light)

60

pupil

a dark hole that opens depending on the amount of light in the environment, dimmer it is the more it opens

61

lens

past the pupil, focuses light by changing its own thickness (accommodation)

62

retina

is the part of the eye that converts the electromagnetic energy of light to electrical impulses for transmission to the brain.

is upside down after the lens

63

rods

thin, cylindrical receptor cells in the retina that are highly sensitive to light

related to peripheral vision

64

cones

cone-shaped, light-sensitive receptor cells in the retina that are responsible for sharp focus and color perception

in the fovea (particularly sensitive)

relate to color vision

65

optic nerve

ganglion cells collect and summarize visual information which is then moved out the back of the eyeball and sent to the brain through a bundle of ganglion axons called the optic nerve

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optic chiasm

the optic nerves from each eye meet at a point roughly between the two eyes called the optic chiasm

67

visual cortex of the brain

where the ultimate processing of visual images takes place here, the most complex kinds of processing occurs here

68

feature detectors

are specialized neurons that are activated only by visual stimuli having certain features, such as a particular shape or pattern

69

color vision

approximately 7% of men and .4% of women are color blind

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trichromatic theory of color vision

suggests that there are three kinds of cones in the retina, each of which responds primarily to a specific range of wavelengths

71

after image

activity in the retina continues even when you are no longer staring at the original picture

72

opponent process theory of color vision

receptor cells are linked in pairs, working in opposition to each other

73

outer ear

acts as a reverse megaphone

74

sound localization

the process by which we identify the direction from which a sound is coming

75

sound

movement of air molecules brought about by a source of vibration

76

auditory canal

a tube-like passage that leads to the eardrum

77

eardrum

part of the ear that vibrates when sound waves hit it

78

inner ear

portion of the ear that changes the sound vibrations into a form in which they can be transmitted to the brain

79

cochlea

a coiled tube that looks something like a snail and is filled with liquid that vibrates in response to sound.

80

basilar membrane

a structure that runs through the center of the cochlea, dividing it into an upper chamber and a lower chamber, covered with hair cells

81

hair cells

when they are bent by the vibrations entering the cochlea, the cells send a neural message to the brain

82

frequencies

translate to the pitch. low frequency is low pitch

83

amplitude

distinguishes between loud and soft sounds

84

hyperacusis

a person is acutely sensitive to sounds that others find tolerable

85

place theory of hearing

states that different areas of the basilar membrane are specialized to respond to different sound frequencies

86

frequency theory of hearing

the entire basilar membrane acts as a microphone, vibrating as a whole in response to a sound

87

left ear

responds more to music

88

right ear

responds more to speech

89

echolocation

the use of sound waves and echoes to determine where objects are

90

olfactory cells

in the nose to help us smell, they regenerate and are vulnerable to pollutants, and viruses

91

gustation

sense of taste

four basic stimulus qualities - sweet, sour, salty, bitter, and arguably umami

92

subertasters vs nontasters

people who are highly sensitive to taste and those who are insensitive

93

complex regional pain syndrome (CRPS)

a disease characterized by a constant, intense pain that is out of proportion to any injury

94

skin senses

touch, pressure, temperature, and pain

95

chronic pain

defined as the presence of pain on most days or every day during the past 6 months

96

gate - control theory of pain

particular nerve receptors in the spinal cord lead to specific areas of the brain related to pain

97

synesthesia

a perceptual phenomenon in which the stimulation of one sensory system involuntarily leads a person to experience an additional sensory response in a different sensory system

98

perception

a constructive process by which we go beyond the stimuli that are presented to us and attempt to construct a meaningful situation

99

Gestalt Laws of organization

important principles that are valid for visual and auditory stimuli - closure, proximity, similarity, and simplicity

100

top down processing

perception is guided by higher-level knowledge, experience, expectations, and motivations

101

bottom up processing

consists of the progression of recognizing and processing information from individual components of stimuli and moving to the perception of the whole

102

depth perception

ability to view of the world in three dimensions and to perceive distance

103

monocular cues

certain cues that permit us to obtain a sense of depth and distance with just one eye

104

perceptual constancy

the recognition that physical objects are consistent and do not vary even though our sensory input about them changes

105

visual illusions

physical stimuli that consistently produce errors in perception