Kasanin (1897-1946) was a Russian born, American trained psychiatrist who introduced the term acute schizoaffective psychoses in 1933.
He was born in Slavgorod, in 1897, and moved to the United States in 1915.
He graduated from the University of Michigan with a Doctor of Medicine in 1921 and a Master of Science in Public health in 1926.
In 1933 in The American Journal of Psychiatry he published a paper entitled '"The Acute Schizoaffective Psychoses" which he had presented at the 88th Annual Meeting of the American Psychiatric Association in Philadelphia in May or June of 1932.
In his article Kasanin described 9 cases studies who had both schizophrenic or Psychotic symptoms and Affective symptoms.