Quantitative Sensory Testing in adults with Autism Spectrum Disorders.

Fründt et al. (2017) ran full-body sensory tests on adults with autism. They used the same heat, cold, and touch machines doctors use for nerve pain. The goal was to see if basic skin sensitivity differs from typical adults.

Each adult sat while tiny filaments, warm pads, or cool tips touched skin on the face, arms, and legs. Staff noted the lowest level each person could feel. They also watched for odd reactions like feeling pain from mild warmth.

Most adults with autism had normal touch, heat, and cold thresholds. Group averages matched the typical adults. No sign of broad numbness or extra sensitivity.

Only a few autistic adults showed rare quirks: one felt burning pain from lukewarm cups, another felt sharp pain from soft brushes. These oddities were exceptions, not the rule.

Buyuktaskin et al. (2021) tested autistic teens and did find higher touch thresholds. The teens needed thicker filaments to notice touch. Age may matter: teens differ from adults.

Cascio et al. (2008) saw mixed results in autistic adults. Light-touch thresholds were normal, yet vibration and heat-pain sensitivity were higher. Odette’s stricter null result may reflect tighter lab controls or sample differences.

de Knegt et al. (2015) gave the same sensory battery to adults with Down syndrome and also found no group-wide changes. The test itself seems robust across diagnoses when basic thresholds are the focus.

If you screen sensory issues in autistic adults, expect most to pass basic threshold tests. Do not assume numbness or super-senses. Still, watch for rare signs like pain from warm coffee cups or soft clothes. When these quirks appear, document them and adjust the environment—lukewarm baths, tag-free shirts, or warning labels on hot drinks can prevent meltdowns without needing full desensitization programs.