Capacitance detection in the wave-type electric fish Eigenmannia during active electrolocation

1998 ◽  
Vol 182 (2) ◽  
pp. 217-224 ◽  
Author(s):  
G. von der Emde
Keyword(s):  
Electric Fish ◽  
Wave Type ◽  
Capacitance Detection

Electric organ morphology ofSternopygus macrurus, a wave-type, weakly electric fish with a sexually dimorphic EOD

1992 ◽  
Vol 23 (7) ◽  
pp. 920-932 ◽  
Author(s):  
Alice Mills ◽  
Harold H. Zakon ◽  
Margaret A. Marchaterre ◽  
Andrew H. Bass
Keyword(s):  
Electric Fish ◽  
Electric Organ ◽  
Weakly Electric Fish ◽  
Sexually Dimorphic ◽  
Wave Type ◽  
Weakly Electric

scholarly journals Tethered unitary recordings suggest a spike-timing electrosensory code in the electrosensory lobe of Gymnotus omarorum

2020 ◽  
Vol 1 ◽  
Author(s):  
Alejo Rodríguez-Cattáneo ◽  
Ana-Carolina Pereira ◽  
Pedro A. Aguilera ◽  
Ángel A. Caputi
Keyword(s):  
Electric Fish ◽  
Electric Organ Discharge ◽  
Electric Organ ◽  
Spike Timing ◽  
Weakly Electric Fish ◽  
Wave Type ◽  
Timing Pattern ◽  
Pulse Type ◽  
Weakly Electric ◽  
The Brain

AbstractEvaluation of neural activity during natural behaviours is essential for understanding how the brain works. Here we show that neuron-specific self-evoked firing patterns are modulated by an object’s presence, at the electrosensory lobe neurons of tethered-moving Gymnotus omarorum. This novel preparation shows that electrosensory signals in these pulse-type weakly electric fish are not only encoded in the number of spikes per electric organ discharge (EOD), as is the case in wave-type electric fish, but also in the spike timing pattern after each EOD, as found in pulse-type Mormyroidea. Present data suggest that pulsant electrogenesis and spike timing coding of electrosensory signals developed concomitantly in the same species, and evolved convergently in African and American electric fish.

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