Chemical receptors in the nose tell us about smells in our immediate environment. Smell is the first sense we rely upon. People with an ASD may experience the following differences.
Some people have no sense of smell and fail to notice extreme odours (this can include their own body odour). Some people may lick things to get a better sense of what they are.
Smells can be intense and overpowering. This can cause toileting problems.
Dislikes people with distinctive perfumes, shampoos, etc. Smells like dogs, cats, deodorant and aftershave lotion are so strong to me I can't stand it, and perfume drives me nuts. Gillingham, G. (1995), page 60
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