Learning and Memory Flashcards
first evidence of cortical localization of memory…used electrical stimulation to map sensory/motor/language in surgery for epilepsy (*experiential/hallucinations when temporal lobe stimulated*)
Penfield
Milner did surgery on H.M and removed this to stop uncontrollable seizures….lost ability to form new long-term memories and short to long term conversion
bilateral medial temporal lobes
this memory is easy to form and easy to forget
declarative
this memory requires repetition/practice over long periods of time…less likely to be forgotten
implicit/procedural
loss of memory and/or ability to learn
amnesia
sudden onset of anterograde amnesia for short period time w/ retrograde amnesia for events since event (due to cerebral ischemia, concussion, drugs…temporary blood deprivation)
transient global amnesia
physical representation of a memory
engram
Lashley’s studies…all the cortical neurons that are activated by an external stimulus (internal representation of an object)…held in short term until activity ends, or until consolidation can occur
cell assemblies
this area is the heart for declarative memory…what makes up this area?
medial temporal lobe; hippocampus, entorhinal cortex, parahippocampal cortex
output of medial temporal lobe via this
fornix
lesion of medial temporal lobe will lose this kind of amnesia
short term (anterograde)
these parts of diencephalon is important in memory process
anterior/DM nuclei, mammillary bodies
this part of brain stores working memory
prefrontal cortex
this part of brain important for habits, motor skills, procedural memory (how to ride a bike for example)
striatum, GP, cerebellum
priming is involved with this area of brain
occipital lobe
this is damaged in Korsakoff’s syndrome
DM and mammillary bodies
acts as index of memory…pulls different parts (person, sight, smell) of memory from different memory stores
hippocampus