🧠ap psychology review

Threshold potential

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

The threshold potential refers to the minimum level of stimulation that a neuron must receive in order to generate an action potential. It is the point at which the neuron's membrane potential becomes depolarized enough to initiate an electrical impulse.

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