Cortex Flashcards
what does the limbic system deal with
emotions and memory
what is a major output fiber bundle of the limbic system
fornix
where is the reticular formation
brain stem
what does the reticular formation control
brain arousal
what is the cinglulate gyrus important for
relaying memory information
what is the septal nuclei important for
activates cingluate gyrus and rest of limbic system
what is the amygdala in control of
control of emotional reactions
what else does the hippocampus do
memory formation
what does the brocas area do
production of language
what is the wernickes area for
comprehension of language
what hemisphere are the brocas and wernickes area in
left hemisphere
what are the three principles of memory
storage
processing
memory traces
what principle of memory occurs in stages and is continually changing
storage
what principle of memory is accomplished by the hippocampus and surroudning strucgtures
processing
what principle of memory are chemical or structural changes that encode memroy
memory traces
what four factors affect transfer of memory from STM to LTM
emotional state
rehearsal
association
automatic memory
what are the two categories of memory
fact/declaritive memory
skill memory
what type of memory is stored with the contex in which it was learned
declarative memory
how is skill memory aquired
through practice
which is less conscious: skill memory or declarative memory
skill memory
what limbic system structures does fact memory involve
hippocampus and amygdala
what areas of the diencephalon are involved in fact memory
thalamus
hypothalamus
what does the basal ganglia do in skill memory
mediates automatic responsees between stimulus and motor response
what type of memory involves the premotor and motor cortex
skill memory
what is the basal ganglia in skill memory
corpus striatum
in long term potentiation, what is blocking calcium from entering the cell
a magnesium ion
what evicts the magnesium ion in long term potentiaion
depolorization of the cell
what is the only receptor calcium can pass though with a weak electrical stimulation in LTP
AMPA
what receptor pore is blocked by magnesium in Long term potentiation
NMDA
what does NREM stand for
No rapid eye movement
waves in stage one sleep
alpha waves
waves in stage 3 sleep
theta and delta
waves in stage 4 sleep
delta
what stage of sleep has sleep spindles
stage 2
what type of waves are common in children but abnormal in adults
theta
rythmic more irregular waves
beta
regular and rythmic low amplitude waves
alpha
high aplitude waves in deep sleep
delta
what does a flat EEG mean
death DUN DUN DUNNNNN
what is a rolandic seizure
spread of activation to motor cortex
one passes through four stages of NREM during the first ______ minutes of sleep
30-45
What occurs after the fourth NREM stage
REM
what muscles are NOT inhibited during REM sleeo
ocular muscles
