Cine analysis of visual orientation and pursuit by the Mongolian gerbil.

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Abstract
Gerbils were trained to run quickly to a disk baited with food reward. By using film records, the amplitude and pattern of head turns were measured during pursuit of these targets. With peripheral targets, gerbils made a series of successive rapid head turns, each guided by new visual information obtained during a brief pause. When the gerbils were presented with moving stimuli in the frontal visual field, the orientation indicated that they can predict the pathway of the target so as to complete the turn on target. This practical use of motion-direction discrimination was associated with very short reaction times. A very brief stimulis, that does not elicit orientation, facilitated responding to a 2nd presentation of the stimulus within the same part of the visual field.

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