Optical trapping of otoliths drives vestibular behaviours in larval zebrafish.

ABSTRACT: The vestibular system, which detects gravity and motion, is crucial to survival, but the neural circuits processing vestibular information remain incompletely characterised. In part, this is because the movement needed to stimulate the vestibular system hampers traditional neuroscientific methods. Optical trapping uses focussed light to apply forces to targeted objects, typically ranging from nanometres to a few microns across. In principle, optical trapping of the otoliths (ear stones) could produce fictive vestibular stimuli in a stationary animal. Here we use optical trapping in vivo to manipulate 55-micron otoliths in larval zebrafish. Medial and lateral forces on the otoliths result in complementary corrective tail movements, and lateral forces on either otolith are sufficient to caus

SUBMITTER: Favre-Bulle IA 

PROVIDER: S-EPMC5606998 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature