Active electroreception in Gymnotus omari: Imaging, object discrimination, and early processing of actively generated signals
| Autor: | Carolina Pereira, Carolina Lezcano, Javier Nogueira, Angel A. Caputi, María E. Castelló, Pedro A. Aguilera, Alejo Rodríguez-Cattáneo |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Electric Organ
Communication Behavior Animal Sensory Receptor Cells Electroreception business.industry General Neuroscience Gymnotiformes Object (grammar) Biology biology.organism_classification Models Biological Pulse (physics) Physiology (medical) Neural Pathways Animals Gymnotus business Neuroscience |
| Zdroj: | Journal of Physiology-Paris. 102:256-271 |
| ISSN: | 0928-4257 |
| DOI: | 10.1016/j.jphysparis.2008.10.005 |
| Popis: | Weakly electric fishes "electrically illuminate" the environment in two forms: pulse fishes emit a succession of discrete electric discharges while wave fishes emit a continuous wave. These strategies are present in both taxonomic groups of weakly electric fishes, mormyrids and gymnotids. As a consequence one can distinguish four major types of active electrosensory strategies evolving in parallel. Pulse gymnotids have an electrolocating strategy common with pulse mormyrids, but brains of pulse and wave gymnotids are alike. The beating strategy associated to other differences in the electrogenic system and electrosensory responses suggests that similar hardware might work in a different mode for processing actively generated electrosensory images. In this review we summarize our findings in pulse gymnotids' active electroreception and outline a primary agenda for the next research. |
| Databáze: | OpenAIRE |
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