Irrational behavior in C. elegans arises from asymmetric modulatory effects within single sensory neurons.

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ID: 69971
2019
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Abstract
C. elegans worms exhibit a natural chemotaxis towards food cues. This provides a potential platform to study the interactions between stimulus valence and innate behavioral preferences. Here we perform a comprehensive set of choice assays to measure worms' relative preference towards various attractants. Surprisingly, we find that when facing a combination of choices, worms' preferences do not always follow value-based hierarchy. In fact, the innate chemotaxis behavior in worms robustly violates key rationality paradigms of transitivity, independence of irrelevant alternatives and regularity. These violations arise due to asymmetric modulatory effects between the presented options. Functional analysis of the entire chemosensory system at a single-neuron resolution, coupled with analyses of mutants, defective in individual neurons, reveals that these asymmetric effects originate in specific sensory neurons.
Reference Key
iwanir2019irrationalnature Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Iwanir, Shachar;Ruach, Rotem;Itskovits, Eyal;Pritz, Christian O;Bokman, Eduard;Zaslaver, Alon;
Journal Nature communications
Year 2019
DOI
10.1038/s41467-019-11163-3
URL
Keywords
cognition graph theory rolandic epilepsy benign epilepsy with centrotemporal spikes brain volume development

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