As the amplitude of the excitatory postsynaptic potential increases above threshold, the time between each action potential will______, thereby increasing the ______ of the action potentials.
A) decrease : amplitude
B) increase : amplitude
C) decrease : frequency
D) increase : frequency
E) not be altered : amplitude

Question

As the amplitude of the excitatory postsynaptic potential increases above threshold, the time between each action potential will______, thereby increasing the  ______ of the action potentials.
A) decrease : amplitude
B) increase : amplitude
C) decrease : frequency
D) increase : frequency
E) not be altered : amplitude

Quizplus · Accepted Answer

When the amplitude of the excitatory postsynaptic potential increases above threshold, the time between each action potential decreases, which increases the frequency of the action potentials. This is because a higher excitatory potential more quickly brings the neuron to the threshold for firing, leading to more frequent action potentials.

As the Amplitude of the Excitatory Postsynaptic Potential Increases Above