Early Lateralization of Gestures in Autism: Right-Handed Points Predict Expressive Language.

Dimitrova et al. (2020) watched toddlers with and without autism during free play. They counted how often each child pointed with the right hand, left hand, or both. One year later they tested the same kids’ expressive vocabulary.

The goal was simple: does early right-hand pointing forecast later words, and does autism change that link?

More right-handed points at age two predicted bigger expressive vocabulary gains at age three. The pattern held for both ASD and typically developing groups. Kids with autism showed no overall hand preference, yet their right-point tally still foretold future language.

Laister et al. (2021) extends this idea into therapy. They showed that toddlers who enter ESDM with richer parent-rated gesture repertoires make larger language gains after one year. Together the studies say: gesture quality at intake matters, whether kids are in treatment or not.

Hsu et al. (2016) seems to disagree. They reported that low total gesture use at 15 months flags later language impairment. The twist: they counted every gesture, not just right-hand points. Nevena’s finer lens—lateralization—turns the old warning into a sharper, action-ready metric.

Thurm et al. (2007) and Gabriels et al. (2001) earlier pointed to joint attention, imitation, or therapy hours as key predictors. Nevena’s right-hand point adds a quick, five-minute screener that needs no tables or parent forms.

During play, tally right-hand points for two minutes. More points equals stronger language growth ahead. Use this micro-metric to flag toddlers who need the most intensive language support, even before formal tests show delay.