Maternal recurrent mood disorders and high-functioning autism.

Lecavalier et al. (2006) looked at the preschoolers with autism. All kids had the same autism diagnosis.

The team asked: Do moms with repeated depression shape how their child looks on tests?

They split kids into two groups: moms with long-term mood trouble versus moms without. Then they compared IQ, daily-living scores, and parent checklists.

Kids of moms with chronic mood trouble scored higher on IQ and daily-living tests.

Yet those same moms marked more behavior problems on checklists.

So the child looked smarter on paper, but life at home felt harder.

Fairthorne et al. (2016) later showed maternal psych history doubles later autism risk in big registry data. That study asked, "Will the baby get ASD?" L et al. asked, "If the child has ASD, how does mom’s mood color the profile?" Different questions, same risk factor.

Taylor et al. (2017) found prenatal stress worsens autism symptoms. L et al. looked after birth and saw higher scores, not worse symptoms. The two studies together hint that timing matters: prenatal stress may hurt development, while postnatal mood may push moms to seek help or stimulate language, lifting scores.

Yorke et al. (2018) pooled 40 papers and confirmed child behavior problems raise parent stress. L et al. show the flip: mom’s mood history links to more reported problems. The loop runs both ways.

When you see high test scores but loud parent worry, check family mood history. A mom with long-term depression may spot problems others miss, or stress may magnify them. Either way, add parent support to the plan, not just child goals.