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bioRxiv · 10.1101/2024.01.27.577215

Mapping the developmental structure of stereotyped and individual-unique behavioral spaces in C. elegans

Harel, Y.·Nasser, R. A.·Stern, S.
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Abstract

Developmental patterns of behavior are variably organized in time and among different individuals. However, long-term behavioral diversity was previously studied using pre-defined behavioral parameters, representing a limited fraction of the full individuality structure. Here, we continuously extracted [~]1.2 billion body postures of [~]2,200 single C. elegans individuals throughout their full development time, to create a complete developmental atlas of stereotyped and individual-unique behavioral spaces. Unsupervised inference of low-dimensional movement modes of each single individual revealed a dynamic developmental trajectory of stereotyped behavioral spaces and exposed unique behavioral trajectories of individuals that deviate from the stereotyped patterns. Moreover, classification of behavioral spaces within tens of neuromodulatory- and environmentally-perturbed populations efficiently uncovered plasticity in the temporal structures of stereotyped behavior and individuality. These results present a comprehensive atlas of continuous behavioral dynamics across development time and a general framework for unsupervised dissection of shared and unique developmental signatures of behavior.

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Harel, Y., Nasser, R. A., Stern, S.. 2024-01-28. Mapping the developmental structure of stereotyped and individual-unique behavioral spaces in C. elegans. https://doi.org/10.1101/2024.01.27.577215

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