Ch 12 Definitions: Learning and Memory Flashcards

1
Q

reflex

A

an involuntary response to a stimulus

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2
Q

fixed action pattern

A

(also known as instinct)

a stereotyped pattern of behavior elicited by particular environmental stimuli

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3
Q

learning

A

a relatively permanent change in behavior or the capacity for behavior due to experience

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4
Q

nonassociative learning

A

a type of learning that involves a change in the magnitude of responses to stimuli rather than the formation of connections between elements or events

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5
Q

habituation

A

a type of learning in which the response to a repeated, harmless stimulus becomes progressively weaker

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6
Q

sensitization

A

a type of learning in which the experience of one stimulus heightens response to subsequent stimuli

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7
Q

classic conditioning

A

a type of associative learning in which neutral stimulus acquires the ability to signal the occurrence of a second, biologically significant event

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8
Q

conditioned stimulus (CS)

A

in classical conditioning, an initially neutral event that takes on the ability to signal other biologically significant events

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9
Q

unconditioned stimulus (UCS)

A

in classical conditioning, an event that elicits a response without prior experience

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10
Q

conditioned response (CR)

A

in classical conditioning, a learned reaction to the conditioned stimulus

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11
Q

unconditioned response (UCR)

A

in classical conditioning, a spontaneous unlearned reaction to a stimulus without prior experience

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12
Q

operant conditioning

A

learning that links behavior with its consequences, producing change in the subsequent frequency of the behavior

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13
Q

information processing models

A

theories of memory that seek to explain the management of information by the brain, from detection to storage to retrieval

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14
Q

sensory memory

A

an initial stage in memory formation in which large amounts of data can be held for very short periods of time

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15
Q

short-term memory

A

an intermediate memory store in which limited amounts of data can be held for a limited amount of time;
without further processing, such information is permanently lost

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16
Q

long-term memory

A

a memory store in which apparently unlimited amounts of data can be held for an unlimited amount of time

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17
Q

declarative memory

A

an explicit memory for semantic or episodic information that can easily be verbalized, or “declared”

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18
Q

nondeclarative memory

A

an implicit memory that is only accessed unconsciously and automatically

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19
Q

semantic memory

A

a type of declarative, explicit memory for facts and verbal information

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20
Q

episodic memory

A

a type of declarative, explicit memorial for personal experience

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21
Q

procedural memory

A

a type of implicit memory for performing learned skills and tasks

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22
Q

anterograde amnesia

A

memory loss for information processed following damage to the brain

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23
Q

Aplysia californica

A

an invertebrate sea slug frequently used as a subject of experiments on learning and memory

24
Q

gill-withdrawal reflex

A

in Aplysia, a protective reflex in which the gill is retracted in response to touch

25
Q

parahippocampal cortex

A

an area of cortex ventral to the hippocampus

26
Q

rhinal cortex

A

an area of cortex ventral to the hippocampus

27
Q

entorhinal cortex

A

a subdivision of the rhinal cortex

28
Q

perirhinal cortex

A

a subdivision of the rhinal cortex

29
Q

fornix

A

a pathway carrying information from the hippocampus to the hypothalamus

30
Q

Ammon’s horn

A

one of two major layers of neurons found in the hippocampus

31
Q

dentate gyrus

A

one of two major layers of neurons found in the hippocampus

32
Q

perforant pathway

A

a pathway made up of axons originating in the rhinal cortex that form synapses in the dentate gyrus of the hippocampus

33
Q

mossy fiber (hippocampus)

A

an axon from the dentate gyrus that synapses on cells found in CA3 of Ammon’s horn

34
Q

Schaffer collateral pathway

A

a pathway connecting CA3 to CA1 in Ammon’s horn

35
Q

long-term potentiation (LTP)

A

a type of synaptic plasticity in which the application of a rapid series of electrical shocks to an input pathway increases the postsynaptic potentials recorded in target neurons

36
Q

associativity

A

a condition believed necessary for learning in which the pre- and postsynaptic neurons are nearly simultaneously active

37
Q

cooperativity

A

a condition for the formation of LTP in which several synapses onto the target postsynaptic neuron must be simultaneously active

38
Q

protein kinase M zeta

A

an enzyme believed to support maintenance of a memory trace

39
Q

Consolidation

A

the process of making memory traces more stable

40
Q

Transcription

A

the process of making an RNA version out of a segment of DNA

41
Q

Translation

A

the process of synthesizing a protein based on the information carried by a molecule of RNA

42
Q

transcription factor

A

a chemical that controls gene expression

43
Q

CREB

A

a protein that activates genes that might be responsible for structural changes associated with long-term memory

44
Q

C/EBPbeta

A

a substance activated by CREB that in turn activates genes related to synaptic growth

45
Q

engram

A

a physical memory trace in the brain

46
Q

nictitating membrane

A

an additional, movable inner eyelid found in some birds, fish, and mammals
but not in humans

47
Q

interpositus nucleus

A

a cerebellar nucleus thought to be essential to classical conditioning in vertebrates

48
Q

Purkinje cell

A

a cell in the cerebellum that influences the structure’s activity by forming inhibitory synapses with the output cells in the deep cerebellar nuclei

49
Q

climbing fiber

A

a fiber originating in the inferior olive of the brainstem that forms synapses on the large Perkinje cells of the cerebellar cortex

50
Q

parallel fiber

A

a fiber originating in the granule cells of the cerebellum that synapses on the Perkinje cells

51
Q

granule cell

A

a cell within the cerebellum that is the source of parallel fibers

52
Q

mossy fiber (cerebellum)

A

a fiber connecting a neuron in the pons to the granule cells of the cerebellum

53
Q

long-term depression

A

a type of synaptic plasticity in which postsynaptic potentials in target cells is reduced

54
Q

extinction

A

in classical conditioning, the reduction in conditioned responding that follows exposure to the conditioned stimulus alone, without unconditioned stimulus

55
Q

delayed nonmatching to sample (DNMS) task

A

a standard test of memory in which the subject must identify the novel member of a stimulus pair following a delay