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Science 19 March 1999:
Vol. 283. no. 5409, pp. 1927 - 1930
DOI: 10.1126/science.283.5409.1927
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Reports

Variability in Spike Trains During Constant and Dynamic Stimulation

Anne-Kathrin Warzecha, * Martin Egelhaaf

In a recent study, it was concluded that natural time-varying stimuli are represented more reliably in the brain than constant stimuli are. The results presented here disagree with this conclusion, although they were obtained from the same identified neuron (H1) in the fly's visual system. For large parts of the neuron's activity range, the variability of the responses was very similar for constant and time-varying stimuli and was considerably smaller than that in many visual interneurons of vertebrates.

Lehrstuhl für Neurobiologie, Fakultät für Biologie, Universität Bielefeld, Postfach 10 01 31, D-33501 Bielefeld, Germany.
*   To whom correspondence should be addressed. E-mail: ak.warzecha{at}biologie.uni-bielefeld.de

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