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Predictability and hierarchy in Drosophila behavior

Author(s): Berman, Gordon J; Bialek, William; Shaevitz, Joshua W

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Abstract: Even the simplest of animals exhibit behavioral sequences with complex temporal dynamics. Prominent amongst the proposed organizing principles for these dynamics has been the idea of a hierarchy, wherein the movements an animal makes can be understood as a set of nested sub-clusters. Although this type of organization holds potential advantages in terms of motion control and neural circuitry, measurements demonstrating this for an animal’s entire behavioral repertoire have been limited in scope and temporal complexity. Here, we use a recently developed unsupervised technique to discover and track the occurrence of all stereotyped behaviors performed by fruit flies moving in a shallow arena. Calculating the optimally predictive representation of the fly’s future behaviors, we show that fly behavior exhibits multiple time scales and is organized into a hierarchical structure that is indicative of its underlying behavioral programs and its changing internal states.
Publication Date: 18-Oct-2016
Electronic Publication Date: 4-Oct-2016
Citation: Berman, Gordon J, Bialek, William, Shaevitz, Joshua W. (2016). Predictability and hierarchy in Drosophila behavior. Proceedings of the National Academy of Sciences, 113 (42), 11943 - 11948. doi:10.1073/pnas.1607601113
DOI: doi:10.1073/pnas.1607601113
ISSN: 0027-8424
EISSN: 1091-6490
Pages: 11943 - 11948
Type of Material: Journal Article
Journal/Proceeding Title: Proceedings of the National Academy of Sciences
Version: Author's manuscript

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