Leo Kanner
June 13, 1894 — April 3, 1981 — Austria / United States
Leo Kanner was an Austrian-American child psychiatrist at Johns Hopkins Hospital who, in a landmark 1943 paper, gave the first clinical description of autism as a distinct condition. His work established a new field of child psychiatry and changed how the world understood children who had previously been labeled only as intellectually disabled or psychotic. His work is inseparable from the history of neurodiversity.
From Galicia to Johns Hopkins
Leo Kanner was born on June 13, 1894 in Klekotow, in what was then the Austro-Hungarian Empire (now Ukraine), into a Jewish family. He studied medicine in Berlin and established himself as a physician in Germany. In 1924, through a series of fortuitous connections, he emigrated to the United States, where he found a position at Johns Hopkins Hospital in Baltimore. He became the first person in the United States to hold a position of child psychiatry within a pediatric hospital — essentially a pioneer of the specialty. In 1935 he published the first English-language textbook of child psychiatry, Child Psychiatry, a foundational text that established frameworks still used in modified form today.
The 1943 Paper and the Description of Autism
In 1943 Kanner published "Autistic Disturbances of Affective Contact" in the journal Nervous Child, presenting detailed case studies of eleven children who shared a distinctive cluster of characteristics: extreme aloneness, an obsessive insistence on sameness, excellent rote memory, and delayed or unusual language development. He named the condition "early infantile autism" — from the Greek autos, meaning self — to describe what he saw as the children's fundamental orientation inward. The paper was precise, careful, and deeply observant. Kanner distinguished these children from those with childhood schizophrenia and argued for a neurological (or at least constitutional) basis. Although his later, controversial suggestion that "refrigerator mothers" — emotionally cold parents — might cause the condition caused harm that took decades to undo, his original clinical description was of enduring accuracy. Histories of autism consistently identify 1943 as the year the condition was named.
Did You Know?
In a 1969 speech to the National Society for Autistic Children — one of the first parent advocacy groups for autism in the United States — Kanner retracted his earlier "refrigerator mother" theory. He told the assembled parents: "I herewith acquit you people as parents." The theory, which had caused enormous suffering to families made to feel responsible for their children's conditions, had been promoted more aggressively by others than Kanner himself, but the retraction was significant nonetheless.
Legacy
Kanner continued to work at Johns Hopkins for decades, remaining active in child psychiatry through the 1970s. The form of autism he described — "Kanner's autism" — is still sometimes used to distinguish classic early-onset autism from the broader spectrum described later. His 1943 paper is one of the most cited in the history of psychiatry. The arc of autism understanding since his work — from pathologized condition, to neurodevelopmental condition, to reconceived as neurodiversity — represents one of psychiatry's most significant paradigm shifts, and it begins with his careful observations of eleven children.