PT - JOURNAL ARTICLE AU - Dunn, Raymond L. AU - Costello, Caitriona AU - Borchardt, Jackson M. AU - Sprague, Daniel Y. AU - Chiu, Grace C. AU - Miller, Julia M. AU - L’Etoile, Noelle AU - Kato, Saul TI - Relative phase of distributed oscillatory dynamics implements a working memory in a simple brain AID - 10.1101/2024.08.11.607402 DP - 2024 Jan 01 TA - bioRxiv PG - 2024.08.11.607402 4099 - http://biorxiv.org/content/early/2024/08/11/2024.08.11.607402.short 4100 - http://biorxiv.org/content/early/2024/08/11/2024.08.11.607402.full AB - We report the existence of a working memory system in the nematode C. elegans that is employed for deferred action in a sensory-guided decision-making process. We find that the turn direction of discrete reorientations during navigation is under sensory-guided control and relies on a working memory that can persist over an intervening behavioral sequence. This memory system is implemented by the phasic interaction of two distributed oscillatory dynamical components. The interaction of oscillatory neural ensembles may be a conserved primitive of cognition across the animal kingdom.Competing Interest StatementThe authors have declared no competing interest.