Unformatted text preview: for days.
chemical synapse is very complicated and useful. Synaptic Plasticity Stim Vm Threshold Facilitation Vm τ ~ ms Potentiation Long-Term Potentiation (LTP)* Vm
Minutes to Days Vm 4s 8 s 12 s Depression Vm τ ~ ms Long-Term Depression (LTD) Vm Minutes to Days Sound Localization
in midbrain. you can localize where sound came from in horizontal plane. the circuit that
underline sound localization: at brain stem, there's a array of place-record neuron. have
excitatory input from left ear and make excitatory. if have 2 input, summation spacially will
trigger action potential in cell. each of cell send info to neuron of another.
-pressure waves hit both ear. only in neuron c will have activation of 2 inputs.A receive input too
soon. C indicate sound in front. wound hit ear from right (activity come from right ear) only
neuron A fires when sound is from left.
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- Spring '09
- EPSP, post synaptic cell, trigger zone