Lickometer

The lickometer measures the precise time of lick events, and provides a steel tube to deliver liquid reward.

The lickometer uses a photogate created from an infrared emitter with a narrow (10 degree) beam angle and a spectrally matched phototransistor. A white LED angled towards the subject is provided, to be used as a cue or for feedback.

The lickometer interfaces with the state machine via the port interface board.