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Keywords: Eigenmannia
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Journal Articles
J Exp Biol (2013) 216 (22): 4272–4284.
Published: 15 November 2013
... of the JAR behavior in terms of a dynamical system model has not been achieved at least in part due to the fact that ‘avoidance’ behaviors are both intrinsically unstable and nonlinear. We overcame the instability of the JAR in Eigenmannia virescens by closing a feedback loop around the behavioral response...
Journal Articles
J Exp Biol (2012) 215 (23): 4196–4207.
Published: 1 December 2012
... the possibility that social context creates envelopes that drive behavior. When Eigenmannia virescens are in groups of three or more, the interactions between their pseudo-sinusoidal electric fields can generate ‘social envelopes’. We developed a simple mathematical prediction for how fish might respond...
Journal Articles
J Exp Biol (1991) 161 (1): 43–59.
Published: 1 November 1991
...BERND KRAMER; IVO KAUNZINGER Eigenmannia 's frequency and intensity discrimination thresholds were determined for a range of seven frequencies (50–1700Hz), centered on a fish's individual discharge frequency, using a conditioned go/no-go paradigm. The threshold criterion was ‘50% correct choices...
Journal Articles
J Exp Biol (1991) 159 (1): 1–22.
Published: 1 September 1991
...BERND KRAMER; BRUNHILDE OTTO Eigenmannia lineata is a tropical South American gymnotiform fish that is both electrogenic and electroreceptive. Its electric organ generates a constant-frequency wave discharge (EOD) that is sexually dimorphic in waveform and harmonic content. Eigenmannia...
Journal Articles
J Exp Biol (1987) 130 (1): 39–62.
Published: 1 July 1987
...BERND KRAMER Eigenmannia 's jamming avoidance response (JAR) is a frequency change of its electric organ discharge (EOD) in response to an electric stimulus of similar frequency (small ΔF; ΔF = F Fish - F Stim ). It is assumed that the response to an unclamped stimulus, ΔR = F Responce - F Rest...
Journal Articles
J Exp Biol (1985) 119 (1): 41–69.
Published: 1 November 1985
...BERND KRAMER 1. The present report shows an intra specific, sexually dimorphic variation in harmonic content and waveform, as well as intensity, of the Electric Organ Discharges (EODs) in the green knife fish, Eigenmannia (Figs 2, 11). There is a close correlation between harmonic content...