Abstract
Sharks and other elasmobranchs hunt by detecting weak electric fields produced by their prey (Kalmijn, 1982). The behavioural threshold for initiating an electrically-guided attack is a few nanovolts (Kalmijn, 1982), but the sensitivity of primary afferent neurons is in the order of a few spikes per second per microvolt (Montgomery, 1984a; Conley and Bodznick, 1994). Thus the change in afferent firing rate caused by prey at the threshold is in the order of 1 spike per minute, or about 0.1% of the spontaneous rate (~15/sec, Montgomery, 1984a).
Original language | American English |
---|---|
Title of host publication | Computational Neuroscience: Trends in Research |
Editors | D. Cohen |
Place of Publication | New York |
Publisher | Plenum Press |
Pages | 239-243 |
State | Published - 1998 |