Results 51 to 60 of about 2,506,819 (375)

Magic trait Electric Organ Discharge (EOD) Dual function of electric signals promotes speciation in African weakly electric fish

open access: yesCommunicative & Integrative Biology, 2009
A unique evolutionary specialization of African weakly electric fish (Mormyridae) is their ability to produce and perceive electric signals. Mormyrids use their Electric Organs Discharge (EOD) for electrolocation and electrocommunication. Here we discuss
Philine G.D. Feulner   +4 more
doaj   +1 more source

Effects of hypoxia on swimming and sensing in a weakly electric fish

open access: yesJournal of Experimental Biology, 2018
Low dissolved oxygen (hypoxia) can severely limit fish performance, especially aerobically expensive behaviours including swimming and acquisition of sensory information.
K. L. Ackerly   +3 more
semanticscholar   +1 more source

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

open access: yesExperimental Results, 2020
Evaluation 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 ...
Alejo Rodríguez-Cattáneo   +4 more
doaj   +1 more source

Synthesis of an electric sensor based control for underwater multi-agents navigation in a file [PDF]

open access: yes, 2013
International audienceThanks to an electro-sensible skin, some species of fish can feel the surrounding electric field generated by them-self or other fish.
Benachenhou, Mohammed-Rédha   +3 more
core   +3 more sources

Shape recognition and classification in electro-sensing

open access: yes, 2013
This paper aims at advancing the field of electro-sensing. It exhibits the physical mechanism underlying shape perception for weakly electric fish. These fish orient themselves at night in complete darkness by employing their active electrolocation ...
Ammari, Habib   +3 more
core   +1 more source

Sexual signals in electric fishes [PDF]

open access: yesTrends in Ecology & Evolution, 1990
Electroreceptive bony fishes of Africa (the Mormyriformes) and South America (the Gymnotiformes) detect and communicate with conspecifics by their continuously discharging electric organs. Laboratory studies of members of each group are beginning to reveal the mechanisms of communicating with and finding mates, offering much scope for future studies of
openaire   +3 more sources

Active sensing associated with spatial learning reveals memory-based attention in an electric fish.

open access: yesJournal of Neurophysiology, 2016
Active sensing behaviors reveal what an animal is attending to and how it changes with learning. Gymnotus sp, a gymnotiform weakly electric fish, generates an electric organ discharge (EOD) as discrete pulses to actively sense its surroundings.
J. J. Jun, A. Longtin, L. Maler
semanticscholar   +1 more source

Neural correlations enable invariant coding and perception of natural stimuli in weakly electric fish

open access: yeseLife, 2016
Neural representations of behaviorally relevant stimulus features displaying invariance with respect to different contexts are essential for perception. However, the mechanisms mediating their emergence and subsequent refinement remain poorly understood ...
Michael G. Metzen   +2 more
semanticscholar   +1 more source

Predation and Crypsis in the Evolution of Electric Signaling in Weakly Electric Fishes

open access: yesFrontiers in Ecology and Evolution, 2019
Eavesdropping by electroreceptive predators poses a conflict for weakly electric fish, which depend on their Electric Organ Discharge (EOD) signals both for navigation and communication in the dark.
Philip K. Stoddard   +3 more
doaj   +1 more source

Modeling the electric field of weakly electric fish [PDF]

open access: yesJournal of Experimental Biology, 2006
SUMMARYWeakly electric fish characterize the environment in which they live by sensing distortions in their self-generated electric field. These distortions result in electric images forming across their skin. In order to better understand electric field generation and image formation in one particular species of electric fish, Apteronotus ...
David Babineau   +2 more
openaire   +3 more sources

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