2017
DOI: 10.1242/jeb.153379
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Waveform sensitivity of electroreceptors in the pulse weakly electric fish Gymnotus omarorum

Abstract: As in most sensory systems, electrosensory images in weakly electric fish are encoded in two parallel pathways, fast and slow. From work on wave-type electric fish, these fast and slow pathways are thought to encode the time and amplitude of electrosensory signals, respectively. The present study focuses on the primary afferents giving origin to the slow path of the pulse-type weakly electric fish Gymnotus omarorum. We found that burst duration coders respond with a high-frequency train of spikes to each elect… Show more

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Cited by 9 publications
(8 citation statements)
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“…The output of receptor cells are then rectified by a synaptic-like module similar to an electronic diode and transformed in a burst of discrete events using a leaky integratefire-and-reset circuit. 66 This model is able to reproduce experimental performance of electroreceptors observed experimentally 34,40,41,59 and can be easily implemented electronically.…”
Section: Models For Waveform Detection and Their Potential Implementamentioning
confidence: 95%
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“…The output of receptor cells are then rectified by a synaptic-like module similar to an electronic diode and transformed in a burst of discrete events using a leaky integratefire-and-reset circuit. 66 This model is able to reproduce experimental performance of electroreceptors observed experimentally 34,40,41,59 and can be easily implemented electronically.…”
Section: Models For Waveform Detection and Their Potential Implementamentioning
confidence: 95%
“…In the case of active electroreception, several experimental and theoretical studies in electric fish indicate that the change in waveform caused by the polarization of capacitive objects 14,[32][33][34] and differential changes in the rotational 8,22 of fields differing in time waveforms and originated in different regions of the body may provide clues for discriminating object impedance, shape and location. The change in signal waveform by the presence of capacitive objects results from a transient charge of the objects, while the presence of multiple sources generating different waveforms at different distances from the object as occurs in pulse gymnotiformes might yield position dependent changes in signal waveform.…”
Section: -31mentioning
confidence: 99%
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“…We used object probes consisting of a nonconductive cylinder with conductive bases [1,3,33,83,[97][98].…”
Section: The Concept Of Object's Stampmentioning
confidence: 99%