Various psychoactive drugs will influence the occurrence, persistence and duration of this behavior. A five-minute test, beginning immediately after setting the animal on the board, is sufficient for most screening or comparison purposes.
Infrared emitter/detector arrays in each hole reliably detect head entry and removal. The circuitry distinguishes the rapid up-and-down movements of a single exploratory event, from separate exploratory events, interrupted by grooming, movement to a new hole, etc.
Data are displayed as a raw number of beam breaks (head pokes). The Hole Board Test controller connects to the 52600 Computer Interface for automated data collection into a Windows® computer. Win-DAS software is required for data acquisition.