Also noted was that an increase in the frequency of stimulus presentation (i.e., shorter interstimulus interval) will increase the rate of habituation.

The Ternus display features a series of frames that are separated by what is known as a blank interstimulus interval (ISI).

The term interstimulus intervals is also relevant for classical conditioning, usually denoting the time between the unconditioned stimulus (food) and the conditioned stimulus (bell or whistle).

Conversely, amplitude is decreased when the interstimulus interval (i.e., the amount of time between successive presentations of stimuli) is increased for stimuli at attended locations.