Dickinson, Michael H. (1990) Comparison of Encoding Properties of Campaniform Sensilla on the Fly Wing. Journal of Experimental Biology, 151 (1). pp. 245-261. ISSN 0022-0949 http://resolver.caltech.edu/CaltechAUTHORS:20120508-154839690
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The wing blade of the blowfly Calliphora vomitoria (L.) carries an array of campaniform sensilla which have previously been divided into slowly and rapidly adapting classes based on their responses to step indentations. In the present study, the physiological characteristics of six sensilla of these two classes are examined within a 20–400 Hz frequency range, using a noise analysis that quantifies linear and nonlinear encoding properties. Both classes exhibit a broad response maximum near 150 Hz, corresponding to the typical wingbeat frequency of the blowfly, and display rectification, limiting the spike response to a narrow portion of a stimulus cycle. The similarity in the encoding properties between the two groups is largely a consequence of the high wingbeat frequency of flies, which precludes any individual neurone from acting as a magnitude detector. Instead, during flight the campaniform neurones might act as ‘one-shot’ detectors, firing a single action potential at a precise phase of each wing stroke cycle. An array of such detectors would be capable of monitoring the passage of a deformational wave as it travels along the wing during each wingbeat.
|Additional Information:||© 1990 Company of Biologists. Accepted 16 February 1990. I wish to thank John Palka and Tom Daniel for their many helpful comments and suggestions with this manuscript. This work was supported by an NSF Graduate Fellowship, and NSF grant BNS-8507460 to John Palka.|
|Subject Keywords:||campaniform sensilla, fly wing, encoding properties.|
|Official Citation:||MICHAEL H. DICKINSON Comparison of Encoding Properties of Campaniform Sensilla on the Fly Wing J Exp Biol 1990 151:245-261|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||09 May 2012 17:12|
|Last Modified:||26 Dec 2012 15:10|
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