BIOLOGICAL BASES OF BEHAVIOR
BIOLOGICAL PSYCHOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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excitation from temporal summation
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inhibition from temporal summation
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excitation from spatial summation
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inhibition from spatial summation
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Detailed explanation-1: -If, however, an IPSP coincides with an EPSP in the postsynaptic cell, then the EPSP will be reduced in amplitude. A neuron continuously sums its excitatory and inhibitory inputs; the result of this process-the net depolarization at the axon hillock (Fig. 5.1)-determines whether or not an AP is fired.
Detailed explanation-2: -Whether a postsynaptic response is an EPSP or an IPSP depends on the type of channel that is coupled to the receptor, and on the concentration of permeant ions inside and outside the cell.
Detailed explanation-3: -In short, the summation of EPSPs and IPSPs by a postsynaptic neuron permits a neuron to integrate the electrical information provided by all the inhibitory and excitatory synapses acting on it at any moment.
Detailed explanation-4: -Answer and Explanation: The event that occurs when an excitatory postsynaptic potential (EPSP) is being generated on the post-synaptic membrane is b. Voltage-gated sodium channels will open. This will cause sodium ions to flow into the dendrites of the postsynaptic neuron causing a small depolarization to occur.