Predictability and hierarchy in Drosophila behavior

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

Even the simplest of animals exhibit behavioral sequences with complex temporal dynamics. Prominent among 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 subclusters. 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.

Original languageEnglish (US)
Pages (from-to)11943-11948
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume113
Issue number42
DOIs
StatePublished - Oct 18 2016

All Science Journal Classification (ASJC) codes

  • General

Keywords

  • Behavior
  • Drosophila
  • Hierarchy
  • Information bottleneck

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