Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons

Abstract Understanding how neural populations encode natural stimuli with complex spatiotemporal structure to give rise to perception remains a central problem in neuroscience. Here we investigated population coding of natural communication stimuli by hindbrain neurons within the electrosensory syst...

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Autores principales:	Ziqi Wang, Maurice J. Chacron
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a708a3258c414cf2b834a7e61cbac4ca
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spelling	oai:doaj.org-article:a708a3258c414cf2b834a7e61cbac4ca2021-12-02T16:53:10ZSynergistic population coding of natural communication stimuli by hindbrain electrosensory neurons10.1038/s41598-021-90413-12045-2322https://doaj.org/article/a708a3258c414cf2b834a7e61cbac4ca2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90413-1https://doaj.org/toc/2045-2322Abstract Understanding how neural populations encode natural stimuli with complex spatiotemporal structure to give rise to perception remains a central problem in neuroscience. Here we investigated population coding of natural communication stimuli by hindbrain neurons within the electrosensory system of weakly electric fish Apteronotus leptorhynchus. Overall, we found that simultaneously recorded neural activities were correlated: signal but not noise correlations were variable depending on the stimulus waveform as well as the distance between neurons. Combining the neural activities using an equal-weight sum gave rise to discrimination performance between different stimulus waveforms that was limited by redundancy introduced by noise correlations. However, using an evolutionary algorithm to assign different weights to individual neurons before combining their activities (i.e., a weighted sum) gave rise to increased discrimination performance by revealing synergistic interactions between neural activities. Our results thus demonstrate that correlations between the neural activities of hindbrain electrosensory neurons can enhance information about the structure of natural communication stimuli that allow for reliable discrimination between different waveforms by downstream brain areas.Ziqi WangMaurice J. ChacronNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ziqi Wang Maurice J. Chacron Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
description	Abstract Understanding how neural populations encode natural stimuli with complex spatiotemporal structure to give rise to perception remains a central problem in neuroscience. Here we investigated population coding of natural communication stimuli by hindbrain neurons within the electrosensory system of weakly electric fish Apteronotus leptorhynchus. Overall, we found that simultaneously recorded neural activities were correlated: signal but not noise correlations were variable depending on the stimulus waveform as well as the distance between neurons. Combining the neural activities using an equal-weight sum gave rise to discrimination performance between different stimulus waveforms that was limited by redundancy introduced by noise correlations. However, using an evolutionary algorithm to assign different weights to individual neurons before combining their activities (i.e., a weighted sum) gave rise to increased discrimination performance by revealing synergistic interactions between neural activities. Our results thus demonstrate that correlations between the neural activities of hindbrain electrosensory neurons can enhance information about the structure of natural communication stimuli that allow for reliable discrimination between different waveforms by downstream brain areas.
format	article
author	Ziqi Wang Maurice J. Chacron
author_facet	Ziqi Wang Maurice J. Chacron
author_sort	Ziqi Wang
title	Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
title_short	Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
title_full	Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
title_fullStr	Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
title_full_unstemmed	Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
title_sort	synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a708a3258c414cf2b834a7e61cbac4ca
work_keys_str_mv	AT ziqiwang synergisticpopulationcodingofnaturalcommunicationstimulibyhindbrainelectrosensoryneurons AT mauricejchacron synergisticpopulationcodingofnaturalcommunicationstimulibyhindbrainelectrosensoryneurons
_version_	1718382879020417024

Synergistic population coding of natural communication stimuli by hindbrain electrosensory neurons

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