Maybe I'm just not that well informed about some types of therapists, but what is an Occupational Therapist (OT)? My difficult child is finally getting evaluation by the sd. The first of which is by an occupational therapist. Abigail is very bright and has no fine or gross motor difficulties. No speech problems. No hearing problems. What do they do, how can they help a BiPolar (BP) kid, what are they testing or looking for?