Learning Flashcards

1
Q

Wernicke-Korsakoff syndrome

A

caused by lack of vitamin B1, common in people with alcoholism.

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2
Q

Iconic memory

A

extremely brief, in sensory buffer

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3
Q

Short-term memory

A

usually 30s or so

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4
Q

Intermediate-term memory

A

outlasts STM but is not permanent.

e.g. what you had for breakfast

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5
Q

Long-term memory

A

lasts for years

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6
Q

Learning

A

the process of acquiring new information.

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7
Q

Memory

A

Ability to store information (a process)

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8
Q

Declarative memory

A

things you know and can tell others

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9
Q

Procedural memory

A

things you know and can show by doing

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10
Q

Episodic declarative memory

A

remembering an event

first day of school

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11
Q

Semantic declarative memory

A

remembering specific information

capital of france

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12
Q

Skill-learning procedural memory

A

knowing how to ride a bicycle

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13
Q

Priming procedural memory

A

Being more likely to use a word you heard recently

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14
Q

Conditioning procedural memory

A

Salivating when you see your favorite food

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15
Q

Retrograde amnesia

A

loss of memories formed before onset of amnesia

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16
Q

Anterograde amnesia

A

inability to form memories after onset of a disorder

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17
Q

Korsakoff syndrome

A

a memory deficiency caused by lack of thiamine

chronic in alcoholics

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18
Q

confabulation

A

filling in a gap in memory

orbitofrontal cortex injury

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19
Q

pleasant emotional memories

A

usually remembered better than unpleasant ones

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20
Q

PTSD

A

Unwanted recall of fearful stimuli creates a feed-forward loop; each recall produces an emotional reaction that reinforces that memory

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21
Q

Propranolol

A

adrenergic antagonist, blocks effects of adrenergic stress hormones

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22
Q

Activation of brain areas for recalling pictures

A

right prefrontal cortex and left and right parahippocampal cortex are activated

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23
Q

Activation of brain areas for recalling words

same structures on the left side are activated

A

left prefrontal cortex and left and right parahippocampal cortex are activated

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24
Q

Most memories are stored in the _____.

A

cortex

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25
Sleep after learning induces information transfer between _____ and _____.
hippocampus | medial prefrontal cortex
26
Episodic memories cause greater activation of the _____ and _____ lobes.
right frontal | temporal
27
Encoding episodic memories
anterior medial temporal system
28
Retrieving episodic memories
posterior medial temporal system
29
basal ganglia injury
impaired Sensorimotor skills, such as mirror-tracing Perceptual skills – learning to read mirror-reversed text Cognitive skills – planning and problem solving
30
Skill learning
Sensorimotor skills, such as mirror-tracing Perceptual skills – learning to read mirror-reversed text Cognitive skills – planning and problem solving
31
Parahippocampal cortex & Hippocampus
formation of new declarative memories; temporal/spatial memory
32
Amygdala
formation of memories that involve emotions
33
Inferotemporal Cortex
visual images
34
Prefrontal cortex
Source memory impaired: "memory for the context in which something was learned", remembering HOW you learned something
35
Basal ganglia and Cerebellum
nondeclarative (skill learning) for sensorimotor and motor patterns
36
Mediodorsal Nucleus (thalamus)
connects to prefrontal lobe, which integrates and sorts memories
37
Autobiographical and semantic memories remain stable and don't decline with _____.
age
38
executive function and navigation skills
decline as we age
39
Alzheimer dementia
Most common dementia among people over 65 | 6 million people now have AD
40
For every 5-year age group beyond 65, percentage of people with AD _____.
doubles
41
AD _____ through the brain.
spreads
42
_____ builds up in brains of Alzheimer patients.
Amyloid
43
β-amyloid is broken down by _____.
apolipoprotein (ApoE)
44
Failure of _____ allows amyloid to accumulate, which incites _____ that helps kill the cell.
ApoE | inflammation
45
AD patients have extracellular accumulation of _____ and intracellular accumulation of _____.
beta-A4 amyloid (plaques) | tau (neurofibrillary tangles)
46
_____ stabilizes microtubules
Protein tau
47
In AD, _____ changes so microtubules collapse, and tau proteins clump to form _____.
tau | neurofibrillary tangles
48
A synapse is _____ if it can change the strength with which it affects its target
plastic
49
Neurons that _____ together _____ together
fire | wire
50
Neurons that fire out of _____ lose their _____
sync | link
51
Animals raised in enriched condition (EC) had
Increased AChE activity, thicker cortex, especially occipital Increased dendritic branching, especially basal dendrites Increased synaptic contacts (dendritic spines and synaptic size)
52
Animals raised in enriched condition experience
Better learning and problem solving Aids recovery from conditions such as malnutrition May protect against age-related declines in memory
53
Tetanus
brief electrical stimulation that triggers thousands of axon potentials
54
After tetanus
EPSPs remain high for hours
55
Hippocampus is the most important structure for
Long Term Potentiation
56
Induction of LTP activates a _____ for the presynaptic neuron to release more _____.
retrograde signal | transmitter
57
astrocytes are needed for _____ to develop
LTP
58
After training, there are dips in memory strength, which are
transitions between stages of memory
59
Blocking one stage of memory prevents formation of
next stage
60
hippocampal atrophy reflects change in its volume, not
loss of neurons
61
Enriched experience reduces...
glucocorticoid levels (which cause hippocampal atrophy) to allow better response to transient stress
62
Enriched experience prompts...
nerve growth factor expression in hippocampus, which prevents hippocampal degeneration
63
Enriched experience enlarges...
neural networks, cushions loss of synapses in aging
64
Top-down processing uses the...
Dorsal frontoparietal system (voluntary)
65
Bottom-up processing uses the...
Temporoparietal system (involuntary)
66
ADD
a failure of top-down processing