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Electric images of two low resistance objects in weakly electric fish
Biosystems, 2003Electroreceptive fish detect nearby objects by processing the information contained in the pattern of electric currents through their skin. In weakly electric fish, these currents arise from a self-generated field (the electric organ discharge), depending on the electrical properties of the surrounding medium.
Diego, Rother +5 more
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Active electrolocation of objects in weakly electric fish
Journal of Experimental Biology, 1999ABSTRACT Weakly electric fish produce electric signals (electric organ discharges, EODs) with a specialised electric organ creating an electric field around their body. Objects within this field alter the EOD-induced current at epidermal electroreceptor organs, which are distributed over almost the entire body surface.
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Weakly Electric Fish: Behavior, Neurobiology, and Neuroendocrinology
2009Publisher Summary This chapter reveals that weakly electric fishes generate weak electric fields from an electric organ in their tails. They sense their own electric organ discharges (EODs) and those of other fishes with specialized sensory receptors called electroreceptors. There are two orders of weakly electric fishes—the Gymnotiformes, which live
H.H. Zakon, G.T. Smith
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Cutaneous electrical oscillation in a weakly electric fish, Gymnarchus niloticus
Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 2001An African electric fish, Gymnarchus niloticus. ceases its electric organ discharge for a prolonged time in response to external electrical signals. During the cessation of electric organ discharges from the electric organ, a weak sinusoidal signal (approximately 0.1 mV cm(-1)) near the fish's previous discharge frequency was recorded near the body ...
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Active Electroreception in Weakly Electric Fish
2017American gymnotiformes and African mormyriformes have evolved an active sensory system using a self-generated electric field as a carrier of signals. Objects polarized by the discharge of a specialized electric organ project their images on the skin where electroreceptors tuned to the time course of the self-generated field transduce local signals ...
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The electric field of a weakly electric fish
1994Freshwater fish of the genus Apteronotus (family Gymnotidae) generate a weak, high frequency electric field (< 100 mV/cm, 0.5-10 kHz) which permeates their local environment. These nocturnal fish are acutely sensitive to perturbations in their electric field caused by other electric fish, and nearby objects whose impedance is different from the ...
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How Weakly Electric Fish Sense Musical Intervals
Bernstein Conference 2025 abstract.Stöckl, Lena, Benda, Jan
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Activity Rhythms in Weakly Electric Fish
Doklady Biological Sciences, 2003A V, Descherevsky, A Ya, Sidorin
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Electric field measurements on a weakly electric fish
Biophysik, 1968L P, Granath +3 more
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Sensorimotor adaptation to destabilizing dynamics in weakly electric fish
Current BiologyHumans and other animals can readily learn to compensate for changes in the dynamics of movement. Such changes can result from an injury or changes in the weight of carried objects. These changes in dynamics can lead not only to reduced performance but also to dramatic instabilities.
Yu, Yang +3 more
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