When his mother suddenly rattled her keys next to him,three-day-old Simon startled.This is an example of:

Question

Quizplus · Accepted Answer

This is an example of a reflex, which is an innate, automatic response to a particular stimulus. In this case, the stimulus was the sound of rattling keys and the response was Simon's startled reaction. There is no evidence to suggest that this response is conditioned or related to a phobia, and it is not necessarily indicative of a hyperactive baby.

When His Mother Suddenly Rattled Her Keys Next to Him,three-Day-Old