GoneisherMickeyMousevoice (particular to Grandin, rather than autistic people generally), theconstantanxietyandthe sensory sensitivitythat afflictedher in the past.
The main control surface is wide enough, in fact, that we could comfortably put three fingers on the top of the mouse, using the middle to control the mouse wheel and DPI sensitivity adjustment rocker (a nice touch in and of itself) without ever moving our index and ring finger from the all-important trigger buttons.