The abstract is read at the publisher; the summary is JClub's.
Brief mate contact in male Caenorhabditis elegans triggers a persistent local search state, with increased reversals and spatially restricted exploration lasting after mate removal.
- Why it matters: Persistent behavioral states can outlast the initiating sensory cue, but the neural mechanisms that start and maintain them after transient social encounters are unclear.
- What they did: The authors used brief optogenetic activation of male-specific ray type B (RnB) sensory neurons and measured neuronal and behavioral responses, testing glutamatergic signaling and the LUA neuropeptide NLP-13 pathway.
- The result: Glutamatergic signaling supports prolonged LUA interneuron activity, while loss of LUA-derived NLP-13 or its receptor DMSR-2 preserves initial responses but reduces prolonged LUA calcium activity and behavioral persistence; LUA-specific NLP-13 restoration rescues persistent local search.
The findingWhy it mattersWhat they didThe result
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