People with Asperger syndrome often display behavior, interests, and activities that are restricted and repetitive and are sometimes abnormally intense or focused. They may stick to inflexible routines, move in stereotyped and repetitive ways, or preoccupy themselves with parts of objects.^[15]

Pursuit of specific and narrow areas of interest is one of the most striking features of AS.^[1] Individuals with AS may collect volumes of detailed information on a relatively narrow topic such as