Text 4 Flashcards

(35 cards)

1
Q

What brain part produces semmantic memory ?

A
  • cerebral cortex
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2
Q

What brain part produces episodic memory ?

A
  • hippocampus
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3
Q

What is the function of the association cortex ?

A
  • brings all kind of infomation together

- Example: links word with visual picture and with how to pronounce

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4
Q

What does agnosia stand for ?

A
  • not knowing
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5
Q

What does associative visual agnosia mean ?

A
  • difficulty recognizing and naming objects, even though they can “see” the objects
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6
Q

What does auditory agnosia mean ?

A
  • They can hear but do not understand
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7
Q

What does tactile agnosia mean ?

A
  • able to recognize an object by sight or description but not by feel if it is placed in their hands
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8
Q

What is so special regarding semantic knowledge ? (and is it true) ?

A
  • you have special regions in the brain so that coritcal lesion can destroy knowledge for a particular kind of object
  • > No it is not true you rather have 3 regions:” function vision and hearing”
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9
Q

What is known about H.M ?

A
  • epileptic patient coast by damage in the medial temporal lobe (hippocampus and amygdala)
  • removed part of temporal lobe -> coast anterograde amnesia in particular unable to form episodic memory and semantic memory
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10
Q

What is equivalent to the hippocampus regarding animals ?

A
  • bippocampal region
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11
Q

What does semantic memory stand for ?

A
  • general knowledge
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12
Q

What does episodic memory mean ?

A
  • unique knowledge regarding personal events
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13
Q

What does anterograde amnesia mean ?

A
  • can not form new memory after the event
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14
Q

What does retrograde amnesia mean ?

A
  • is a loss of memory-access to events that occurred, or information that was learned, before an injury
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15
Q

What is the function of the hippocampus (in depth) ?

A
  • encodes retain and retrieve info when needed

- bind together memory of objects (such as words) with spatial and temporal context

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16
Q

What is the structure of the basel ganglia ?

A
  • caudate , putamen globus pallidus and amygdala
17
Q

What is the function of the basel ganglia ?

A

The basal ganglia are associated with control of voluntary motor movements, habit learning, eye movements, cognition, and emotions

18
Q

What is the function if the amygdala ?

A
  • The amygdala is responsible for the perception of emotions such as anger, fear, and sadness
19
Q

What is the function of the limbic system ?

A
  • controls emotion, memories and arousal
20
Q

How can someone determine if something is remembered ?

A
  • because then the hippocampus shows greater activity
21
Q

How are words in comparison to pictures stored ?

A
  • Words = only show a major activtaion in the left medial temporal loe
  • pictures show an activation in bothe medial temporal lobe
22
Q

What does ribot gradient mean ?

A

= memories that are really old will not be forgotten as easily as recent stored memory

23
Q

What does the consolidation period stand for ?

A
  • is a period during which new memories are especially vulnerable to disruption
  • when memories are needed then they need to be retrieved = consolidation period
24
Q

What is the standard consolidation theory?

A
  • the contribution of the hippocampus is not needed forever regarding storgae retrieving
  • After a while only cortex is needed
  • > only regarding episodic memory
25
What is the multiple memory trace theory?
- hippocmapus is needed - memories are never fully independent - prrof would be full retrograde amnesia - > Episodic memory can become semantic memories
26
What is one of the main function of the prefrontal cortex regarding the hippocampus ?
- suppresses hippocampal activity, inhibiting storage and retrieval of “unwanted” memories - also knows where and when memory was stored
27
What major structures are also involved regarding semantic and episodic memory ?
- Diencephalon = communication between the hippocampus and the cortex - basel forebrain = regulation of hippocampical processing
28
What is meant by the korsakoff disease ?
- damage in thalamus due to lack of thiamine because of alchol abuse -> leads to anterograde amnesia
29
What happens when u touch part of the parietal, occipital and temporal lobe ?
1 Parital = tiggeling 2 Occipital = short flash 3. temporal = hearing a buzzing
30
What is the cause of associative visaul agnosia ?
- inferior temporal lobe damage
31
What is the cause of auditory agnosia ?
- superior temporal lobe damage
32
What is the cause of tactile agnosia ?
- parital lobe damage
33
What study prooves if someone has anterograde amnesia ?
- radial arm maze study
34
Why can the hippocampus being fooled ? And what kind of solution was offered ?
- cause great activity is also shown in theme words which are completly novel ! - region behind hippocampus responds only to true remembered objects
35
What occurs more often anterograde amnesia or retrograde amnesia ?
- a weak combination of both