Research

Children who experience even mild head knocks can have more behavioural issues

Freya Lucas

Sep 20, 2022

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Researchers from the University of Rochester have found that children who experience even a mild traumatic brain injury (TBI) have more emotional and behavioral problems than children who do not.

“These hits to the head are hard to study because much of it depends on recall of an injury since the impacts do not all require a visit to a doctor,” first author Dr Daniel Lopez said.

"Being able to analyse longitudinal data from a large cohort and ask important questions like this gives us valuable information into how a TBI, even a mild one, impacts a developing brain."

Researchers used MRI and behavioral data collected from thousands of children who participated in the Adolescence Brain Cognitive Development (ABCD) Study. They revealed children with a mild TBI experienced a 15 per cent increased risk of an emotional or behavioural problem.

The risk was the highest in children around 10 years old. Researchers found that children who had a significant hit to the head but did not meet diagnostic criteria for a mild TBI also had an increased risk of these behavioral and emotional problems.

The University of Rochester Medical Center is one of 21 research sites collecting data for the National Institutes of Health ABCD Study. Since 2017, 340 children from the greater Rochester area have been part of the 10-year study that is following 11,750 children through early adulthood. It looks at how biological development, behaviors, and experiences impact brain maturation and other aspects of their lives, including academic achievement, social development, and overall health.

Researchers hope future ABCD Study data will better reveal the impact these head hits have on mental health and psychiatric problems.

“We know some of the brain regions associated with increased risk of mental health problems are impacted during a TBI,” principal investigator Dr Ed Freedman said.

“With more time and data, we hope to gain a better understanding of the long-term impact of even a mild TBI.”

View the research here.

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