type of systemizing	classic autism	Asperger's syndrome
sensory systemizing	tapping surfaces or letting sand run through one's fingers	insisting on the same foods each day
motoric systemizing	spinning round and round, or rocking back and forth	learning knitting patterns or a tennis technique
collectible systemizing	collecting leaves or football stickers	making lists and catalogues
numerical systemizing	obsessions with calendars or train timetables	solving maths problems
motion systemizing	watching washing machines spin round and round	analysing exactly when a specific event occurs in a repeating cycle
spatial systemizing	obsessions with routes	developing drawing techniques
environmental systemizing	insisting on toy bricks being lined up in an invariant order	insisting that nothing is moved from its usual position in the room
social systemizing	saying the first half of a phrase or sentence and waiting for the other person to complete it	insisting on playing the same game whenever a child comes to play
natural systemizing	asking over and over again what the weather will be today	learning the Latin names of every plant and their optimal growing conditions
mechanical systemizing	learning to operate the VCR	fixing bicycles or taking apart gadgets and reassembling them
vocal/auditory/verbal systemizing	echoing sounds	collecting words and word meanings
systemizing action sequences	watching the same video over and over again	analysing dance techniques