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A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish
Corollary discharge is an important brain function that allows animals to distinguish external from self-generated signals, which is critical to sensorimotor coordination. Since discovery of the concept of corollary discharge in 1950, neuroscientists have sought to elucidate underlying neural circui...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7403230/ https://www.ncbi.nlm.nih.gov/pubmed/32848649 http://dx.doi.org/10.3389/fnint.2020.00042 |
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author | Fukutomi, Matasaburo Carlson, Bruce A. |
author_facet | Fukutomi, Matasaburo Carlson, Bruce A. |
author_sort | Fukutomi, Matasaburo |
collection | PubMed |
description | Corollary discharge is an important brain function that allows animals to distinguish external from self-generated signals, which is critical to sensorimotor coordination. Since discovery of the concept of corollary discharge in 1950, neuroscientists have sought to elucidate underlying neural circuits and mechanisms. Here, we review a history of neurophysiological studies on corollary discharge and highlight significant contributions from studies using African mormyrid weakly electric fish. Mormyrid fish generate brief electric pulses to communicate with other fish and to sense their surroundings. In addition, mormyrids can passively locate weak, external electric signals. These three behaviors are mediated by different corollary discharge functions including inhibition, enhancement, and predictive “negative image” generation. Owing to several experimental advantages of mormyrids, investigations of these mechanisms have led to important general principles that have proven applicable to a wide diversity of animal species. |
format | Online Article Text |
id | pubmed-7403230 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-74032302020-08-25 A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish Fukutomi, Matasaburo Carlson, Bruce A. Front Integr Neurosci Neuroscience Corollary discharge is an important brain function that allows animals to distinguish external from self-generated signals, which is critical to sensorimotor coordination. Since discovery of the concept of corollary discharge in 1950, neuroscientists have sought to elucidate underlying neural circuits and mechanisms. Here, we review a history of neurophysiological studies on corollary discharge and highlight significant contributions from studies using African mormyrid weakly electric fish. Mormyrid fish generate brief electric pulses to communicate with other fish and to sense their surroundings. In addition, mormyrids can passively locate weak, external electric signals. These three behaviors are mediated by different corollary discharge functions including inhibition, enhancement, and predictive “negative image” generation. Owing to several experimental advantages of mormyrids, investigations of these mechanisms have led to important general principles that have proven applicable to a wide diversity of animal species. Frontiers Media S.A. 2020-07-29 /pmc/articles/PMC7403230/ /pubmed/32848649 http://dx.doi.org/10.3389/fnint.2020.00042 Text en Copyright © 2020 Fukutomi and Carlson. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Fukutomi, Matasaburo Carlson, Bruce A. A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish |
title | A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish |
title_full | A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish |
title_fullStr | A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish |
title_full_unstemmed | A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish |
title_short | A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish |
title_sort | history of corollary discharge: contributions of mormyrid weakly electric fish |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7403230/ https://www.ncbi.nlm.nih.gov/pubmed/32848649 http://dx.doi.org/10.3389/fnint.2020.00042 |
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