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Medical Term:

orienting reflex


an aspect of attending in which an organism's initial response to a change or to a novel stimulus is such that the organism becomes more sensitive to the stimulation; dilation of the pupil of the eye in response to dim light.

Synonym(s): investigatory reflex, orienting response

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.