five Flashcards
simple cell assembly in the Brain is that
neurons connected through axons to the synapse
the perception of an event is
the firing of particular cells that code for an event
short term memory
-is reverberating neural activity in closed loop circuitry
-continual firing for the same neural pattern activation when seeing the image for the first time
long term memory
-synapse connection between neurons is strengthend
-occur quickly over short period of time
-dont need to keep neurons active to keep memory, strengthened connection so easy to recall
reactivation
-many patterns of neural activity expressed during perceptual experiences are re-expressed when experience are remembered
-differing synaptic strength-partial match to original experience
strengthening occurs when
-post synaptic and pre synaptic cells fire together
-FIRE TOGETHER WIRE TOGETHER
-crab—->pain —> fear
-LTP like manner
artificial electrical stimulation LTP
-artificially initiating a situation when your nervous system resounds to a strong stimulus
-LTP produce long term alternations in the strength of synapses
how to test if LTP is paired with memory
-show that blocking LTP prevents memory formations
-LTP depends on activation of NMDA subtype of glutamate receptor
-different does of NMDA antagonist on LTP
Morris water maze
-platform in a pool of water, animal learns where it is
-can block memories by using the same drug that also blocks LTP
-shows that reversal of LTP produces forgetting
DRUG ZIP
-animal learns to stay away form an area to prevent getting shocked
-when injected with ZIP it forgets
producing LTP can create
-false memories or mask existing memories
v4
-invovled in colour perception
-food, mate, prey, predictor recognition
v5
motion detection
what happening in lateral lesions of V5
colour and form perceptions in tact but akinetopsia (motion picture vision)
v5 and driving
if v5 doesn’t trigger or is distracted then there can be a crash
