Memory Disorders Flashcards
subject memory complaints predicts what?
predate formal deficits in some dementia
Case of HM was?
bilateral mediall temporal lobe resection = no long term memory creation, amnesia, but intact procedural and working memory
Immediate memory is?
short=term, keeping info like digits in our heads and manipulate if need be
long term memory is?
storing information over minutes/hours/years
what is non-declarative memory?
skills/habits
priming/classical conditioning
what is 2 kinds of declarative memory?
episodic: events
semantic: facts (banana is yellow)
semantic memory contextual?
Nope
3 important brain areas for declarative memory? damage does what?
- Hippocampus
2.entorhinal cortex - perirhinal cortex
damage to any of the three causes memory deficits
Right hippocampus better for?
non verbal memory: faces, visuospatial associations
left hippocampus better for?
verbal: list learning/story recall
4 big causes of memory impairment?
- degenerative disorders
- cerebrovascular disorders
- paroxysmal/transient (eg. trauma)
- surgical resection
what happens to hippocampus in temporal lobe epilepsy? histologically and clinically?
hippocampal sclerosis (CA1) declarative memory deficit
what happens if you remove mammillary bodies?
dense amnesia
what is transient global amnesia?
anterograde amnesia from some precipitating event, unknown cause
3 kinds of transient memory disorders?
- transient global
- transient epileptic
- post-traumatic