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Social stimuli increase activity of adult-born cells in the telencephalon of zebrafish (Danio rerio). | LitMetric

AI Article Synopsis

  • * Researchers studied adult zebrafish to see if new brain cells respond to social interactions by marking cell birth and measuring activity levels after exposing them to social cues.
  • * They found increased activity in new neurons in specific brain areas during social exposure, suggesting these cells may help regulate social behavior in zebrafish.

Article Abstract

Fish have particularly high levels of adult neurogenesis, and this high neurogenic capacity may contribute to behavioural plasticity. While it is known that adult-born cells can differentiate into neurons and incorporate into neural circuits, it is unclear whether they are responsive to external stimuli and are thereby capable of contributing to behavioural change. We tested whether cells born in the telencephalon of adult zebrafish are activated by social stimuli. We marked cell birth with BrdU and, 40 days later, exposed fish to brief (15 min) visual social stimuli and assayed cellular activity through immunolocalization of phospho-S6-ribosomal protein (pS6). BrdU+/pS6+ co-labelled cells were found in six brain regions, and, in four regions [dorsal (D), dorsomedial (Dm) and dorsolateral (Dl) zones of the dorsal telencephalon and pre-optic area (POA)], the number of co-labelled cells and fraction of BrdU+ cells that labelled positive for pS6 increased during social stimulation. These results are consistent with the hypothesis that adult-born neurons play a role in regulating social behaviour.

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Source
http://dx.doi.org/10.1242/jeb.242253DOI Listing

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