Memory Types of memory CNS regions memory impairments Learning Models for learning Memory Processing if attended Shortterm Memory STM Limited capacity 7 items can use chunking Brief duration ID: 208051
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Slide1
thinking about learning and memory
Memory?
Types of memory, CNS regions, memory impairments
Learning?
Models for learningSlide2
Memory Processing
if attendedSlide3
Short-term Memory (STM)
Limited capacity (7 items)
can use chunking
Brief durationCan be lost without rehearsal or with interferenceSlide4Slide5
Memory Processing
if attendedSlide6
Short-term Memory (STM)
Limited capacity (7 items)
can use chunking
Brief durationcan be lost without rehearsal or with interferenceLong-term Memory (LTM)
more permanent storageConsolidation - Process by which rehearsal of information in STM results in transfer to LTMSlide7
Memory Processing
if attended
retrievalSlide8
Amnesia refers to a failure to remember
Anterograde
amnesia - difficulty in forming new memories for events that occur after a brain trauma
Retrograde amnesia - inability to recall events that occurred prior to a traumaAmnesia can be temporary or permanent
AmnesiaSlide9Slide10
Severe anterograde amnesia follows bilateral
damage to the hippocampus
Hippocampal Damage
and AmnesiaSlide11Slide12
Surgery – 1953 for debilitating epilepsy
bilateral removal of hippocampus
consequences:
severe anterograde amnesiashort-term memory intactlong term memory prior to surgery intact
motor memories intactmedial temporal amnesia
H.M. Slide13Slide14Slide15Slide16Slide17
Declarative memory: memories available as facts, events, or specific stimuli
Nondeclarative
memory: stimulus-response and motor memories that control behaviors at an unconscious level
Memory ProcessesSlide18
Hippocampal dependentSlide19
these can be true or falseSlide20
Prefrontal Cortex-memory deficits – planning, sequence of events
Cerebellum
motor memories
Other CNS regions important for memorySlide21Slide22
amygdala
part of the limbic system; emotional memories Slide23Slide24
Alzheimers disease
Hippocampus has many cholinergic neurons
basal forebrain – area specifically affected by AD
Korsakoff’s syndrome
some other ways that memory can be affectedSlide25
Korsakoff’s syndromesevere anterograde amnesia with elements of confabulation
consequence of chronic alcohol abuse
lesions in a number of brain structures including
some other ways that memory can be affectedSlide26Slide27
ECS – electroconvulsive shock
State dependent memories (and state dependent learning)
some other ways that memory can be affected