Learning and Memory

Question 1

at the molecular level how does short term memmory differ from LT memory

Answer 1

short term- existing netwrosk and post translational modifcatioons

Long term memeory- strucutral and function changes of the neural network that require de novo expression

Question 2

label the limbic lobe

Answer 2

Question 3

describe papex cirucitry?

Answer 3

Emotional stimulus iput via the sensory cortex—> cingulate cottex

or

thalmus—> hypothalmus

hypothamlmus—> anteirro thalmus—> cingulate gyrus—-> hippocampus + amyydala—> back ton hyopthalamus

Hypothalmus—> body response

cingulste gyrus—-> feeling

Question 4

describe the parahippocomapl region?

Answer 4

MTL

parahippocampla region- entorhinla cotex

periheinal cortex

parahippocampal cortex

Question 5

what happens if patient has biltaeral medial temporal lobe resection (HM)

Answer 5

become profoundly amnesic- cannot form new memoires

but retains some old memories

Question 6

what type of memories is MDTL rimportatn in?

Answer 6

Declarative memories (not procedural)

facts dates, memories, people

Question 7

what is the Long term-potentioan phenonmenon? (LTP)

Answer 7

synaptic strenthend based on recent activitivity

strenght from high frequency stimulation

synpase undergo LTP- have stronger electrical responses to stimuli than other

Question 8

describe the patheay for long term mmeory information

Answer 8

cortical association areas (sensory input)—-> parahippocampla and rhinal cortex—> hippocmpaus —-> fornix—> thalmus/hypothamaus—-> prefrontal cortex stor permanently

Question 9

what is the hippocoampus invovled in?

Answer 9

Spatial memory (like a GPS)

associative learning (ideas and experiences)

key to formation of long term memory