What Are Leo Kanner's Common Characteristics
In 1943, Leo Kanner noticed a group of unique children who all had some common characteristics. These characteristics included extremely limited language abilities, inability to form interpersonal relationships and aggravation in response to changes in environment or routine (Gresham, Beebe-Frankenberger & MacMillan, 1999).
Around the same time, Hans Asperger recognized a similar set of characteristics in a group of children who were not as severely impaired as Kanner’s group (Grandin, 1995).
Since that time, autistic disorders have confused and frustrated many doctors, researchers and families due to their complexity. These disorders are identified by the DSM-IV-TR as autistic spectrum