PSB 3002 Lecture Notes - Lecture 28: Fusiform Face Area, Thalamus, Basal Ganglia

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23 Mar 2018
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Blockade of action potentials and dendritic spikes with ttx prevents ltp (depolarization of postsynaptic cell required for strengthening) Long-term depression (ltd; decrease in synaptic strength) differs from ltp in 3 main ways: what are they? (hint: how does the membrane potential of the postsynaptic cell compare to what"s required for. What happens to the number of ampa receptors in dendritic spines?) --long-term decrease in neuron excitability at a particular synaptic input wen input is activated while postsynaptic cell is hyperpolarized or only slightly depolarized. -induced by low frequency stimulation (< 10 hz) - involves a decrease in ampa receptors in dendritic spines. --learning to recognize stimuli: new stimuli, changes in familiar stimuli. -does not include a behavioral response (what to do) to stimuli. -involves changes in synaptic connections within the appropriate sensory association cortex (visual, auditory, olfactory, etc. ) -learning: synaptic changes contribute to new neural circuits. -- recognizing: sensory input activates those new circuits.

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