Dynamics of Motion Perception in the Desert Locust

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Science  03 Jul 1964:
Vol. 145, Issue 3627, pp. 69-71
DOI: 10.1126/science.145.3627.69


The torque produced by the neck muscles of a locust mounted coaxially in an illuminated cylindrical striped drum follows small sinusoidal oscillations of the drum. Peak-to-peak oscillations of 0.03 degree (± 0.02 degree) at 0.1 cy/sec elicit measurable responses. Several features of this visual response to drum oscillation can be expected theoretically on the basis of a formal neural mechanism similar to that inferred by Hassenstein and Reichardt for constant-velocity motion perception in the bettle eye.

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