To measure temporal summation in single cells, researchers ____.
A) attach electrodes to the scalp
B) insert an microelectrode into the scalp
C) collect sodium and potassium ions from nearby glial cells
D) record depolarizations of the postsynaptic neuron

Question

Quizplus · Accepted Answer

To measure temporal summation in single cells, researchers record depolarizations of the postsynaptic neuron. Temporal summation refers to the cumulative effect of multiple excitatory postsynaptic potentials (EPSPs) on a postsynaptic neuron over time, and this can be measured by recording the depolarizations of the postsynaptic neuron using a microelectrode. Option A is incorrect because attaching electrodes to the scalp measures activity in multiple neurons, not just a single cell. Option B is partially correct, as a microelectrode can be used, but it is inserted into the neuron itself rather than the scalp. Option C is incorrect because collecting sodium and potassium ions from nearby glial cells does not measure temporal summation or the electrical activity of a single neuron.

To Measure Temporal Summation in Single Cells, Researchers ____