Optimal interstimulus intervals vary for different systems.Why might this occur?

A) It reflects the latency to respond in a particular reflex system.
B) It is because the CS changes the UCS at different rates.
C) It is because the UCS impacts the CS at different rates.
D) It is because the conditioned stimulus elicits different unconditioned responses at different rates.

Optimal Interstimulus Intervals

The ideal time gap between consecutive stimuli that maximizes learning or the effectiveness of a response.

Reflex System

A biological system that enables organisms to respond automatically to specific stimuli without conscious thought.

CS

stands for Conditioned Stimulus, an originally neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.