Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.

Behavioral responses of an animal vary even when they are elicited by the same stimulus. This variability is due to stochastic processes within the nervous system and to the changing internal states of the animal. To what extent does the variability of neuronal responses account for the overall vari...

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Autores principales:	Ronny Rosner, Anne-Kathrin Warzecha
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b40d3353c482435390aff21d8eadd737
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spelling	oai:doaj.org-article:b40d3353c482435390aff21d8eadd7372021-11-18T07:35:22ZRelating neuronal to behavioral performance: variability of optomotor responses in the blowfly.1932-620310.1371/journal.pone.0026886https://doaj.org/article/b40d3353c482435390aff21d8eadd7372011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22066014/?tool=EBIhttps://doaj.org/toc/1932-6203Behavioral responses of an animal vary even when they are elicited by the same stimulus. This variability is due to stochastic processes within the nervous system and to the changing internal states of the animal. To what extent does the variability of neuronal responses account for the overall variability at the behavioral level? To address this question we evaluate the neuronal variability at the output stage of the blowfly's (Calliphora vicina) visual system by recording from motion-sensitive interneurons mediating head optomotor responses. By means of a simple modelling approach representing the sensory-motor transformation, we predict head movements on the basis of the recorded responses of motion-sensitive neurons and compare the variability of the predicted head movements with that of the observed ones. Large gain changes of optomotor head movements have previously been shown to go along with changes in the animals' activity state. Our modelling approach substantiates that these gain changes are imposed downstream of the motion-sensitive neurons of the visual system. Moreover, since predicted head movements are clearly more reliable than those actually observed, we conclude that substantial variability is introduced downstream of the visual system.Ronny RosnerAnne-Kathrin WarzechaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 10, p e26886 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ronny Rosner Anne-Kathrin Warzecha Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
description	Behavioral responses of an animal vary even when they are elicited by the same stimulus. This variability is due to stochastic processes within the nervous system and to the changing internal states of the animal. To what extent does the variability of neuronal responses account for the overall variability at the behavioral level? To address this question we evaluate the neuronal variability at the output stage of the blowfly's (Calliphora vicina) visual system by recording from motion-sensitive interneurons mediating head optomotor responses. By means of a simple modelling approach representing the sensory-motor transformation, we predict head movements on the basis of the recorded responses of motion-sensitive neurons and compare the variability of the predicted head movements with that of the observed ones. Large gain changes of optomotor head movements have previously been shown to go along with changes in the animals' activity state. Our modelling approach substantiates that these gain changes are imposed downstream of the motion-sensitive neurons of the visual system. Moreover, since predicted head movements are clearly more reliable than those actually observed, we conclude that substantial variability is introduced downstream of the visual system.
format	article
author	Ronny Rosner Anne-Kathrin Warzecha
author_facet	Ronny Rosner Anne-Kathrin Warzecha
author_sort	Ronny Rosner
title	Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
title_short	Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
title_full	Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
title_fullStr	Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
title_full_unstemmed	Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
title_sort	relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/b40d3353c482435390aff21d8eadd737
work_keys_str_mv	AT ronnyrosner relatingneuronaltobehavioralperformancevariabilityofoptomotorresponsesintheblowfly AT annekathrinwarzecha relatingneuronaltobehavioralperformancevariabilityofoptomotorresponsesintheblowfly
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Relating neuronal to behavioral performance: variability of optomotor responses in the blowfly.

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