There are many people on the spectrum such as Temple Grandin that have strong visual memories not only for fact retrieval but in her case she has used her visual way processing to help her with her career in animal slaughter.
Some people on the autism have problems with not only processing visuals in “real-time” but also accessing it, contextualising it and having what I call “image retrieval” this means the person in question may not only have problems processing and internalising what is around them (visually) they may well have issues with image retrieval this means they may not connect the image with word because they have no idea what the image is so there is no were for the “word” to or they may have an issue once they have processed the image to give it the correct word that is associated with it. For me words have to be associated with a “feeling” not emotional specifically but how the object for example “felt” as I am typing this will remember the typewriter by the “texture” of the keys that my fingers are touching.
This may sound and look odd for the onlooker and rightfully so – but is the person has so many sensory “blockages” touch in the context of “meaning” may well be one of the only ways in which they can access the “world” in way which is not only comforting (for some) but meaningful its relevance.
This may well not be just restricted to touch and feeling it may well also include licking, sniffing, mouthing too to objects, people and the physically surroundings. Visual break-up may look like the child is blind which in my case my Mum thought I was which would indicate I was showing behaviours of a blind person. (as well as a deaf person because of auditory processing).
Paul Isaacs 2016