The origin of behavioral bursts in decision-making circuitry.

From ants to humans, the timing of many animal behaviors comes in bursts of activity separated by long periods of inactivity. Recently, mathematical modeling has shown that simple algorithms of priority-driven behavioral choice can result in bursty behavior. To experimentally test this link between...

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Autores principales: Amanda Sorribes, Beatriz G Armendariz, Diego Lopez-Pigozzi, Cristina Murga, Gonzalo G de Polavieja
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Publicado: Public Library of Science (PLoS) 2011
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spelling oai:doaj.org-article:5aece79fc73c4d9dbbee40c4d1669afd2021-11-18T05:50:28ZThe origin of behavioral bursts in decision-making circuitry.1553-734X1553-735810.1371/journal.pcbi.1002075https://doaj.org/article/5aece79fc73c4d9dbbee40c4d1669afd2011-06-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21731478/?tool=EBIhttps://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358From ants to humans, the timing of many animal behaviors comes in bursts of activity separated by long periods of inactivity. Recently, mathematical modeling has shown that simple algorithms of priority-driven behavioral choice can result in bursty behavior. To experimentally test this link between decision-making circuitry and bursty dynamics, we have turned to Drosophila melanogaster. We have found that the statistics of intervals between activity periods in endogenous activity-rest switches of wild-type Drosophila are very well described by the Weibull distribution, a common distribution of bursty dynamics in complex systems. The bursty dynamics of wild-type Drosophila walking activity are shown to be determined by this inter-event distribution alone and not by memory effects, thus resembling human dynamics. Further, using mutant flies that disrupt dopaminergic signaling or the mushroom body, circuitry implicated in decision-making, we show that the degree of behavioral burstiness can be modified. These results are thus consistent with the proposed link between decision-making circuitry and bursty dynamics, and highlight the importance of using simple experimental systems to test general theoretical models of behavior. The findings further suggest that analysis of bursts could prove useful for the study and evaluation of decision-making circuitry.Amanda SorribesBeatriz G ArmendarizDiego Lopez-PigozziCristina MurgaGonzalo G de PolaviejaPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 7, Iss 6, p e1002075 (2011)
institution DOAJ
collection DOAJ
language EN
topic Biology (General)
QH301-705.5
spellingShingle Biology (General)
QH301-705.5
Amanda Sorribes
Beatriz G Armendariz
Diego Lopez-Pigozzi
Cristina Murga
Gonzalo G de Polavieja
The origin of behavioral bursts in decision-making circuitry.
description From ants to humans, the timing of many animal behaviors comes in bursts of activity separated by long periods of inactivity. Recently, mathematical modeling has shown that simple algorithms of priority-driven behavioral choice can result in bursty behavior. To experimentally test this link between decision-making circuitry and bursty dynamics, we have turned to Drosophila melanogaster. We have found that the statistics of intervals between activity periods in endogenous activity-rest switches of wild-type Drosophila are very well described by the Weibull distribution, a common distribution of bursty dynamics in complex systems. The bursty dynamics of wild-type Drosophila walking activity are shown to be determined by this inter-event distribution alone and not by memory effects, thus resembling human dynamics. Further, using mutant flies that disrupt dopaminergic signaling or the mushroom body, circuitry implicated in decision-making, we show that the degree of behavioral burstiness can be modified. These results are thus consistent with the proposed link between decision-making circuitry and bursty dynamics, and highlight the importance of using simple experimental systems to test general theoretical models of behavior. The findings further suggest that analysis of bursts could prove useful for the study and evaluation of decision-making circuitry.
format article
author Amanda Sorribes
Beatriz G Armendariz
Diego Lopez-Pigozzi
Cristina Murga
Gonzalo G de Polavieja
author_facet Amanda Sorribes
Beatriz G Armendariz
Diego Lopez-Pigozzi
Cristina Murga
Gonzalo G de Polavieja
author_sort Amanda Sorribes
title The origin of behavioral bursts in decision-making circuitry.
title_short The origin of behavioral bursts in decision-making circuitry.
title_full The origin of behavioral bursts in decision-making circuitry.
title_fullStr The origin of behavioral bursts in decision-making circuitry.
title_full_unstemmed The origin of behavioral bursts in decision-making circuitry.
title_sort origin of behavioral bursts in decision-making circuitry.
publisher Public Library of Science (PLoS)
publishDate 2011
url https://doaj.org/article/5aece79fc73c4d9dbbee40c4d1669afd
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