After a neuron fires, it enters a refractory period during which its membrane cannot respond to another stimulus.

Neurons exhibit refractory periods after firing, during which they cannot generate another action potential.

When a sudden alarm and a flashing light occurred almost simultaneously, the driver experienced a pronounced psychological refractory period that slowed his response to the second cue.

In dual-task experiments, participants often exhibit psychological refractory periods when responding to closely timed stimuli.