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Citation
McKellar, C.E., Lillvis, J.L., Bath, D.E., Fitzgerald, J.E., Cannon, J.G., Simpson, J.H., Dickson, B.J. (2019). Threshold-Based Ordering of Sequential Actions during Drosophila Courtship.  Curr. Biol. 29(3): 426--434.e6.
FlyBase ID
FBrf0241391
Publication Type
Research paper
Abstract

Goal-directed animal behaviors are typically composed of sequences of motor actions whose order and timing are critical for a successful outcome. Although numerous theoretical models for sequential action generation have been proposed, few have been supported by the identification of control neurons sufficient to elicit a sequence. Here, we identify a pair of descending neurons that coordinate a stereotyped sequence of engagement actions during Drosophila melanogaster male courtship behavior. These actions are initiated sequentially but persist cumulatively, a feature not explained by existing models of sequential behaviors. We find evidence consistent with a ramp-to-threshold mechanism, in which increasing neuronal activity elicits each action independently at successively higher activity thresholds.

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Related Publication(s)
Note

Drosophila Courtship: Neuronal Coordination of Behavioural Sequences and a 60-Year-Old Hypothesis.
Cobb, 2019, Curr. Biol. 29(7): R250--RR252 [FBrf0242137]

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Secondary IDs
    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Curr. Biol.
    Title
    Current Biology
    Publication Year
    1991-
    ISBN/ISSN
    0960-9822
    Data From Reference