Eugene Bleuler, was a Swiss psychiatrist. He was the first person to use the term "Autism". Bleuler, started using it around 1911 to refer to one group of symptoms of schizophrenia which is a mental disorder were a person can get hallucinations and delusions. ASD stands for Autism Spectrum Disorder is a person who typically has difficulty with social and communication skills. In the 1940's researchers in the United States began to use the term "autism" to describe children with emotional or social problems. Autism which has been in use for about 100 years, comes from the Greek word "auto", meaning "self". It is conditions in which a person is removed from social interactions.