Electric fish
Modeling the electric field of weakly electric fish
... weakly electric fish could improve their ability to resolve objects, because electroreceptors respond to current flowing perpendicular to the skin surface (Knudsen, 1975; Rasnow and Bower, ...the ...
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Neural circuitry for communication and jamming avoidance in gymnotiform electric fish
... a fish used only its tuberous system to detect chirps, it would use a detection system that is very susceptible to high-frequency ...an electric field strength that is high enough to be detected by an ...
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Electric fish: new insights into conserved processes of adult tissue regeneration
... neotropical electric fishes of South America (Teleostei: ...gymnotiform electric fishes can regenerate injured brain and spinal cord tissues and restore amputated body parts ...weakly electric ...
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Active electrolocation of objects in weakly electric fish
... African fish produce weak electric signals in the water using their electric organ (Lissmann, ...weakly electric fish use their electric organ discharges (EODs) for detecting ...
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Effects of hypoxia on swimming and sensing in a weakly electric fish
... some fish species ...weakly electric fish as a model to assess changes in locomotion and sensory information acquisition under hypoxic stress because they have an active electrosensory system that ...
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Enhanced sensory sampling precedes self initiated locomotion in an electric fish
... pulse-type electric fish, we show that heightened sensory acquisition precedes spontaneous initiation of ...of electric organ discharge rate (EODR) demonstrating down- and up-states of sensory ...
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Differential expression of genes and proteins between electric organ and skeletal muscle in the mormyrid electric fish Brienomyrus brachyistius
... weakly electric fish that have independently evolved EOs: while much is known about development and gene expression in gymnotiforms, very little is known about development and gene expression in ...
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Simulated predator stimuli reduce brain cell proliferation in two electric fish species, Brachyhypopomus gauderio and Apteronotus leptorhynchus
... that electric fish (Brachyhypopomus occidentalis) naturally exposed to high predator (Rhamdia quelen) density and tail injury had reduced brain cell proliferation compared with individuals facing few ...
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Estimation of distance and electric impedance of capacitive objects in the weakly electric fish Gnathonemus petersii
... weakly electric fish Gnathonemus petersii judges the distance and impedance of nearby ...the fish ’ s electric probing signals, cast amplitude and waveform images onto the fish ’ s ...
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Electrolocation based on tail bending movements in weakly electric fish
... weakly electric fish bend the tail from the left to mid-line and from mid-line to the right with the same time ...weakly electric fish obtain the object localization or some electrolocation ...
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Sensory flow shaped by active sensing: sensorimotor strategies in electric fish
... of electric fish to novel stimuli depends on the time-averaged mean of the prior sensory input, so that responses following long periods of stationary input are enhanced (Caputi et ...in electric ...
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Neuromodulation of early electrosensory processing in gymnotiform weakly electric fish
... Sensory neurons continually adapt their processing properties in response to changes in the sensory environment or the brainʼs internal state. Neuromodulators are thought to mediate such adaptation through a variety of ...
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Biomimetic and bio inspired robotics in electric fish research
... of fish swimming is ...weakly electric fish (Fig. 1A), one species of African weakly electric fish (Gymnarchus niloticus) and triggerfish, though the mechanics may be similar to ...
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Template matching describes visual pattern recognition tasks in the weakly electric fish Gnathonemus petersii
... weakly electric fish Gnathonemus petersii, uses template- matching to recognize visual patterns that it had previously viewed from a fixed vantage ...This fish is nocturnal, lives in small streams in ...
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Chirping and asymmetric jamming avoidance responses in the electric fish Distocyclus conirostris
... the fish we recorded here showed small but consistent responses to playback stimuli that were 20 Hz and 40 Hz above their own EODfs, well outside the usual range of frequencies shown to impair electrolocation ...
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Communication signals and sound production mechanisms of mormyrid electric fish
... The mormyrids have evolved two mechanisms for broadcasting energy into their aquatic environment for communication at night. Both mechanisms used muscle tissue as starting material which was modified in opposing ...
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Proximate and ultimate causes of signal diversity in the electric fish Gymnotus
... of electric diversity in the species-rich neotropical electric fish genus ...the electric organ discharge (EOD) – which is the carrier of both the communication and electrolocation signal of ...
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Plasticity varies with boldness in a weakly-electric fish
... Background: The expression of animal personality is indicated by patterns of consistency in individual behaviour. Often, the differences exhibited between individuals are consistent across situations. However, between ...
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Central mechanisms of temporal analysis in the knollenorgan pathway of mormyrid electric fish
... computational task that the ELa is performing. In the avian brainstem, it is two ears being compared, whereas in the ELa, all parts of the body surface are being compared. In this sense, the phase-coding pathways of ...
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Chirping response of weakly electric knife fish (Apteronotus leptorhynchus) to low frequency electric signals and to heterospecific electric fish
... the electric modality. Here, we explore how an electric fish, Apteronotus leptorhynchus, responds to heterospecific electric fish and to low- frequency electric stimuli that lie ...
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