Text 4 Flashcards
(35 cards)
What brain part produces semmantic memory ?
- cerebral cortex
What brain part produces episodic memory ?
- hippocampus
What is the function of the association cortex ?
- brings all kind of infomation together
- Example: links word with visual picture and with how to pronounce
What does agnosia stand for ?
- not knowing
What does associative visual agnosia mean ?
- difficulty recognizing and naming objects, even though they can “see” the objects
What does auditory agnosia mean ?
- They can hear but do not understand
What does tactile agnosia mean ?
- able to recognize an object by sight or description but not by feel if it is placed in their hands
What is so special regarding semantic knowledge ? (and is it true) ?
- 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”
What is known about H.M ?
- 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
What is equivalent to the hippocampus regarding animals ?
- bippocampal region
What does semantic memory stand for ?
- general knowledge
What does episodic memory mean ?
- unique knowledge regarding personal events
What does anterograde amnesia mean ?
- can not form new memory after the event
What does retrograde amnesia mean ?
- is a loss of memory-access to events that occurred, or information that was learned, before an injury
What is the function of the hippocampus (in depth) ?
- encodes retain and retrieve info when needed
- bind together memory of objects (such as words) with spatial and temporal context
What is the structure of the basel ganglia ?
- caudate , putamen globus pallidus and amygdala
What is the function of the basel ganglia ?
The basal ganglia are associated with control of voluntary motor movements, habit learning, eye movements, cognition, and emotions
What is the function if the amygdala ?
- The amygdala is responsible for the perception of emotions such as anger, fear, and sadness
What is the function of the limbic system ?
- controls emotion, memories and arousal
How can someone determine if something is remembered ?
- because then the hippocampus shows greater activity
How are words in comparison to pictures stored ?
- Words = only show a major activtaion in the left medial temporal loe
- pictures show an activation in bothe medial temporal lobe
What does ribot gradient mean ?
= memories that are really old will not be forgotten as easily as recent stored memory
What does the consolidation period stand for ?
- is a period during which new memories are especially vulnerable to disruption
- when memories are needed then they need to be retrieved = consolidation period
What is the standard consolidation theory?
- the contribution of the hippocampus is not needed forever regarding storgae retrieving
- After a while only cortex is needed
- > only regarding episodic memory