Results 1 to 10 of about 2,868 (235)
First record of Gymnotus henni (Albert, Crampton and Maldonado, 2003) in Panama: phylogenetic position and electric signal characterization [PDF]
Check List, 2013 We present the first record of the weakly electric fish Gymnotus henni in Panama, which also represents the first record of Gymnotus in the Pacific slope of the country. One specimen was collected in a tributary of the Chucunaque River in the Tuira basin.
Fernando Alda +6 more
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Motor patterns during active electrosensory acquisition
Frontiers in Behavioral Neuroscience, 2014 Motor patterns displayed during active electrosensory acquisition of information seem to be an essential part of a sensory strategy by which weakly electric fish actively generate and shape sensory flow.
Volker eHofmann +5 more
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Heliyon, 2023 How neural populations encode sensory input to generate behavioral responses remains a central problem in systems neuroscience. Here we investigated how neuromodulation influences population coding of behaviorally relevant stimuli to give rise to ...
Mariana M. Marquez, Maurice J. Chacron
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Neural innovations and the diversification of African weakly electric fishes [PDF]
Communicative & Integrative Biology, 2011 In African mormyrid fishes, evolutionary change in a sensory region of the brain established an ability to detect subtle variation in electric communication signals. In one lineage, this newfound perceptual ability triggered a dramatic increase in the rates of signal evolution and species diversification.
Bruce A, Carlson, Matthew E, Arnegard
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Nature Communications, 2016 The neural mechanisms underlying efficient coding of natural sensory stimuli have yet to be fully determined. Here, monitoring sensory pyramidal cells in weakly electric fish, the authors find SK channels are necessary for matching the responsiveness of ...
Chengjie G. Huang +2 more
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Population Coding and Correlated Variability in Electrosensory Pathways
Frontiers in Integrative Neuroscience, 2018 The fact that perception and behavior depend on the simultaneous and coordinated activity of neural populations is well established. Understanding encoding through neuronal population activity is however complicated by the statistical dependencies ...
Volker Hofmann, Maurice J. Chacron
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Serotonergic Modulation of Sensory Neuron Activity and Behavior in Apteronotus albifrons
Frontiers in Integrative Neuroscience, 2020 Organisms must constantly adapt to changes in their environment to survive. It is thought that neuromodulators such as serotonin enable sensory neurons to better process input encountered during different behavioral contexts.
Mariana M. Marquez, Maurice J. Chacron
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Scientific Reports, 2023 Active electrolocation organ of weakly electric fish act as a proximity detection system with high accuracy in recognizing object parameters such as size and shape. In contrast, some fish with passive electrolocation organ are able to detect objects at a
Meijiang Hou +3 more
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Spooky Interaction at a Distance in Cave and Surface Dwelling Electric Fishes
Frontiers in Integrative Neuroscience, 2020 Glass knifefish (Eigenmannia) are a group of weakly electric fishes found throughout the Amazon basin. Their electric organ discharges (EODs) are energetically costly adaptations used in social communication and for localizing conspecifics and other ...
Eric S. Fortune +6 more
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Real-Time Localization of Moving Dipole Sources for Tracking Multiple Free-Swimming Weakly Electric Fish. [PDF]
PLoS ONE, 2013 In order to survive, animals must quickly and accurately locate prey, predators, and conspecifics using the signals they generate. The signal source location can be estimated using multiple detectors and the inverse relationship between the received ...
James Jaeyoon Jun +2 more
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