A timing assessment tool (12) is provided that is manipulatable by a user (8) in response to the user's expected occurrence of a rhythmic reference signal. The timing assessment tool derives a rhythmic assessment from a pattern of user responses to the user's expected occurrence of the rhythmic reference signal. An analyzer (14), which may include a database (30), is provided to respond to the rhythmic assessment to indicate a diagnosis and/or corrective intervention,
Neurological conflict diagnostic method and apparatus