Categorizing and identifying preferred interests in autistic toddlers

Area of Science:

• Developmental Psychology
• Clinical Psychology
• Pediatrics

Background:

• Preferred interests are a hallmark of autism spectrum disorder (ASD), often noted by parents early on.
• Research on preferred interests in toddlerhood is limited, though differences in intensity and type compared to neurotypical peers and those with developmental delay are suggested.
• While common in typical development, preferred interests tend to decrease with age in children without a diagnosis.

Purpose of the Study:

• To investigate if diagnostic group, age, sex, and cognitive ability predict parental reporting of preferred interests in toddlers (12-36 months).
• To explore potential differences in the type of interests among diagnostic groups.
• To assess the utility of preferred interests as an early clinical indicator for autism.

Main Methods:

• Parental reports of preferred interests were collected for children aged 12-36 months.
• Participants included toddlers diagnosed with autism, developmental delay, or no diagnosis.
• Statistical analyses examined predictors of reported interests and differences in interest types across groups.

Main Results:

• The diagnostic group was a significant predictor of whether parents reported preferred interests.
• Age, sex, and cognitive ability did not predict the likelihood of reporting preferred interests.
• No significant differences were found in the types of interests reported across the diagnostic groups.

Conclusions:

• Parent-reported preferred interests are a reliable early indicator for autism in toddlers.
• The type of preferred interest is not a distinguishing factor for diagnosing autism in this age group.
• These findings support using the presence of preferred interests for early autism identification, but not their specific nature.