Optomotor Reflex for adult Zebrafish
OptoMotor response (OMR) is a reflex behavior observed when an animal follow naturally a rotating grating around it. It has been widely used to assess the visual functions of zebrafish.
However, the standard protocol for larval fish is not yet applicable in adult zebrafish.
Rather than monitoring only the eye movement, the swimming direction will be monitored. If the fish responds to a rotating stimulus by swimming equal amounts of time clockwise or counterclockwise, they would be scored as not detecting the stimulus. If they spent most of their time swimming in the same direction as the stimulus, they detect it.
The grating size could be adjusted to determine threshold detection.