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Science 3 March 1978:
Vol. 199. no. 4332, pp. 1001 - 1004
DOI: 10.1126/science.622577
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Articles

Science, Vol 199, Issue 4332, 1001-1004
Copyright © 1978 by American Association for the Advancement of Science

articles

Phase sensitivity in electroreception

W Heiligenberg and RA Altes

The gymnotoid electric fish Hypopomus artedi discriminates between electric stimulus pulses with identical spectral amplitudes but different spectral phase functions. Behavioral results can be explained on the assumption that electroreception is based on a linear filter, approximately matched to the species' electric organ discharge. The impulse response of the appropriate matched filter, in fact, resembles the known impulse response of the electroreceptors involved.


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