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,
