Autism spectrum disorder was first identified as a childhood disorder by

A) John Watson.
B) Steven Garner.
C) Sigmund Freud.
D) Aaron Beck
E) Leo Kanner.

Autism Spectrum Disorder

The best known of the pervasive developmental disorders. Autistic children exhibit a lack of social responsiveness or extreme autistic aloneness; very limited or unusual communication patterns; unusual patterns of behaviour such as a lack of eye contact; self-stimulation, including rocking, spinning, or flapping; self-injury, including head-banging or hand-biting; an obsessive interest in particular objects; and an obsessive need for sameness. From the Greek autos, “self.”

Leo Kanner

An Austrian-American psychiatrist known for his work in autism research and for first describing autism as a neurodevelopmental disorder.

Childhood Disorder

A wide range of psychological, developmental, and emotional disorders that affect children and adolescents.