Visual responsiveness and habituation in the turtle.

Abstract
16 RED-EARED TURTLES (PSEUDEMYS SCRIPTA) EXPOSED TO PATTERNS OF MOVING STRIPES FOR PERIODS RANGING FROM 62-5 MIN., SHOWED A DECREASE IN THE FREQUENCY OF OPTOKINETIC RESPONSES WHICH WAS SPECIFIC TO THE DIRECTION IN WHICH THE STRIPES MOVED, AND, WITH A SMALL NUMBER OF STRIPES, LASTED FOR 24 HR. A MANY-STRIPED DRUM DID NOT BRING ABOUT RESPONSE DECREMENTS BETWEEN SESSIONS, ALTHOUGH LARGE DECREMENTS OCCURRED WITHIN SESSIONS. RESPONSE DECREMENT IS INTERPRETED AS HABITUATION AND DOES NOT APPEAR TO BE DUE TO FATIGUE OR SENSORY ADAPTATION. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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