...Martin Gottwald; Raya A. Bott; Gerhard von der Emde ABSTRACT During active electrolocation, the weakly electric fish Gnathonemus petersii judges the distance and impedance of nearby objects. Capacitive objects, which modulate local amplitude and waveform of the fish's electric probing signals, cast...

...Roland Pusch; Gerhard von der Emde; Michael Hollmann; Joao Bacelo; Sabine Nöbel; Kirsty Grant; Jacob Engelmann SUMMARY Weakly electric fish generate electric fields with an electric organ and perceive them with cutaneous electroreceptors. During active electrolocation,nearby objects are detected...

... by hovering in the tubes. These facts may be explained by the presence of adaptive responses observed at the slow pathway in the electrosensory lobe. * Author for correspondence (e-mail: [email protected] ) 6 1 2005 © The Company of Biologists Limited 2005 2005 active electrolocation...

...Gerhard Von Der Emde ABSTRACT Weakly electric fish can perceive electric properties of objects by monitoring the responses of their epidermal electroreceptors (mormyromasts) to their own electric organ discharges (EOD), a process known as active electrolocation. Mormyrid fish can distinguish...