while Timmy moves using a wheelchair as he struggles with palsy and Tourette’s syndrome. Jimmy Valmer suffers from ataxic cerebral palsy, as well as tiptoe gait and crouch gait in South Park.

Those sudden, involuntary movements and vocal outbursts, known as tics, are symptoms of the neurological disorder Tourette Syndrome or Tourette’s. Local artist Liane Chu, 20, suffers from this ...