The making of a field: the development of comorbid psychopathology research for persons with intellectual disabilities and autism.

Koegel et al. (2014) traced how scientists started studying mental-health conditions that ride along with autism and intellectual disability.

The authors read every key paper from the 1970s to 2013 and stitched the story together. They looked at who studied what, when the big ideas appeared, and where the gaps still sit.

The field is young. Before 1990 almost no one asked if an autistic person also had anxiety, ADHD, or mood trouble.

By 2013 teams had written hundreds of smaller reviews, but no shared game plan for spotting these extra conditions existed.

Kleinert et al. (2007) gave an early tour of childhood comorbidities; the 2014 paper widens the lens to adults and shows the field’s growth.

Brereton et al. (2006) proved autistic youth carry heavier emotional loads than kids with ID alone; the 2014 history frames that finding as a turning point that sparked later work.

Etyemez et al. (2022) seems to clash: their big data say ASD plus ID links to fewer behavioral or psychiatric notes than ASD without ID. The gap is method, not fact. Semra counted only documented diagnoses in medical files, while L et al. charted research that uses parent reports and deep interviews. Both agree clinicians still miss comorbid problems when ID is present.

Austin et al. (2015) and Blacher et al. (2016) came next and built finer tools; Koegel et al. (2014) sits in the middle as the map that shows why those tools were needed.

If you assess or treat clients with ASD or ID, expect extra mental-health conditions but know our screens are still rough. Use the newest tools, keep watching the literature, and document everything so the next review can close today’s gaps.