1972 volume 1(3) pages 247 – 261
doi:10.1068/p010247

Cite as:
Downing A C, 1972, "Optical scanning in the lateral eyes of the copepod Copilia" Perception 1(3) 247 – 261
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Optical scanning in the lateral eyes of the copepod Copilia

A C Downing

Received 26 October 1972

Abstract. The lateral eyes of the female Copilia are exceptionally large for a creature of its size but have very few receptors. These receptors appear to scan the image plane of the anterior lenses of the eye, but until now there has been no behavioural evidence linking their movement positively with the functioning of the eyes, though there is some (disputed) evidence that it is merely a side-effect of peristalsis. On channel-capacity grounds we might not have expected optical scanning to occur in biological systems, so any positive evidence for scanning, in the engineering sense, is particularly interesting.

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