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B16

Visual object recognition: Neural coding of prey and predator in the zebrafish optic tectum and its modulation by feeding state

Principal Investigators:

Zebrafish larvae escape from predators and move toward food sources. The decision between escape and approach depends on the size of the visual object and also on the animal's feeding state. A hungry fish is more willing to approach large objects than a fed one. Project B19 aims to (1) identify the circuits underlying the coding of object size in the optic tectum, and (2) study the modulation of neuronal responses by feeding state. A suite of behavioral, optical, genetic and optogenetic methods will be employed.