| Issue |
Europhys. Lett.
Volume 56, Number 3, November 2001
|
|
|---|---|---|
| Page(s) | 454 - 460 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2001-00540-7 | |
| Published online | 01 December 2003 | |
Long-range temporal anti-correlations in paddlefish electroreceptors
1
Center for Neurodynamics, University of Missouri -
St. Louis, MO 63121, USA
2
Institut für Theoretische Physik III,
Justus-Liebig-Universität D-35392 Giessen, Germany
3
Dipartimento de Fisica, Universidade Federal do Rio Grande
de Norte 59072-970 Natal, Brazil
Received:
24
April
2001
Accepted:
15
August
2001
The paddlefish perceives its world through an array of electroreceptor organs spread over its rostrum. Using Detrended-Fluctuation Analysis (DFA) we find long-range anti-correlations in sequences of time intervals between neural action potentials recorded from spontaneously firing electroreceptor afferents. In contrast, spontaneous discharges from mechanoreceptor afferents in the crayfish tailfan lack long-range correlations altogether. We interpret this finding as a consequence of the self-sustained oscillatory nature of the electroreceptor organ compared with the threshold-type dynamics of the mechanoreceptor.
PACS: 87.19.Nn – Properties of higher organisms: Electrophysiology / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 87.17.Nn – Electrophysiology of nerve cells
© EDP Sciences, 2001
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