Are palm reversals the pronoun reversals of sign language? Evidence from a fingerspelling task.

Acquisition of pronominal forms by children with autism spectrum disorder (ASD) continues to garner significant attention due to the unusual ways that such children produce and comprehend them. In particular, pronoun reversal errors (e.g.

The Source of Palm Orientation Errors in the Signing of Children with ASD: Imitative, Motoric, or Both?

Palm orientation reversal errors (e.g., producing the 'bye-bye' gesture with palm facing inward rather than outward as is customary in American culture) have been documented in the signing of deaf and hearing children with autism spectrum disorder (ASD) and in the imitation of gestures by signing and non-signing children with ASD.