Decipher circuit mechanisms controlling chemotaxis

This project will rely on behavior analysis of zebrafish larvae exploring in neutral conditions as well as animals exposed to chemical gradients. Chemosensory integration in peripheral sensory organs modulates the activity of motor centers in the brain in order to change direction, speed and sequences of bouts during exploration. This PhD project will unravel the algorithm deployed by zebrafish larva to navigate and the underlying neuronal circuits using population imaging, genetics, optogenetics, and in vivo electrophysiology in order to build an integrated circuit model of zebrafish navigation.


  • (poster) Gautam Sridhar, Antonio Carlos Costa, Massimo Vergassola, Claire Wyart [2022]. Data-driven discovery of long timescale behavioral strategies during sensory evoked navigation. ED3C Scientific days.
  • (poster) Gautam Sridhar, Gautam Reddy, João Marques, Rita Felix, Olivier Mirat, Michael Orger, Claire Wyart [2021]. Unsupervised statistical model based on language learning segments fundamental sequences of prey capture behaviour. NeuroFrance 2021 conference, 2021.
  • Severi, KE, Böhm, UL, Wyart C# [2018]. Investigation of hindbrain activity during active locomotion reveals inhibitory neurons involved in sensorimotor processing. Scientific Reports, 8:13615.