A Case-Controlled Investigation of Tactile Reactivity in Young Children With and Without Global Developmental Delay.

The team tested light touch, pin-prick, cool, pressure, and repeated von Frey on toddlers and preschoolers. Half had global developmental delay (GDD). Half were same-age peers without delay.

They used the 5-minute modified Quantitative Sensory Testing (mQST) kit. Every child sat on a parent's lap while an examiner touched the arm or leg with safe, graded tools.

Kids with GDD pulled away, grimaced, or cried more often than controls. The difference showed up on every tactile test the team tried.

In plain words, the GDD group was measurably more touch-sensitive across all five sensations.

Fründt et al. (2017) found no broad threshold differences in adults with ASD, only rare odd reactions. Cohrs et al. (2017) now shows clear reactivity in young children with GDD. Age and diagnosis matter.

Tavassoli et al. (2016) saw altered tactile inhibition in ASD kids using a 2-minute ratio test. The new study adds a quick mQST battery for GDD toddlers, giving clinicians two validated paths.

Aller et al. (2023) pooled DS, ASD, and other IDD groups and warned that parent report and direct tests do not always match. The mQST gives you an objective score to double-check caregiver concerns.

You now have a 5-minute, kit-based way to show parents why their child hates tags, socks, or hair-washing. Use the mQST results to write precise sensory goals, justify OT consults, or show insurance why a desensitization program is needed. If the child also has ASD traits, pair this test with the static-dynamic ratio from Tavassoli et al. (2016) to get a fuller picture.