" Interests. Autistic adults can be highly fixated on interests that can span any subject or theme. Their interest and intensity level are far greater than they would be for other people, to the point that they may interfere with other activities and functioning. These interests must last for at least 3 months."
" Sensory reactivity Many individuals on the autism spectrum identify as having unusually strong or diminished responses to sensory information. Certain sensory inputs that would be “everyday sounds” for many people may be particularly bothersome or fascinating to people on the spectrum. Autistic adults may want to avoid certain sensory experiences because they find them aversive, or they may seek experiences they find particularly appealing. Some individuals may also have an apparent “absence” of reaction (e.g. indifference to pain and temperature)."