The effects on coordination as a result of cerebellar gray matter levels in adults with ADHD in combination with impulsivity as a symptom of ADHD may be causing the drastic increases in dangerous vehicular incidents in older adults with ADHD.

Cerebellar Gray Matter and Impulsivity in Relation to Motor Vehicle accidents in Adults with ADHD

Impulsivity as a symptom of ADHD in adults with ADHD likely has a large impact on the likelihood of motor vehicle incidents, as a lack of self-control could cause one to make more rash or reckless decisions on the road.

Hofstra University

A study done at Columbia University Mailman School of Public Health studied the likelihood of vehicular accidents in older individuals with ADHD. It was found that ADHD was associated with a 7% increase in hard-breaking events, a 102% increase in traffic ticket incidents, and 74% increase in self-reported crashes.

Car Accidents in Older Adults with ADHD

Liu, Y., Chihuri, S., Mielenz, T. J., Andrews, H. F., Betz, M. E., DiGuiseppi, C., Eby, D. W., Hill, L. L., Jones, V., Molnar, L. J., Strogatz, D., & Li, G. (2023). Motor Vehicle Crash Risk in Older Adult Drivers With Attention-Deficit/Hyperactivity Disorder. JAMA Network Open, 6(10), e2336960. https://doi.org/10.1001/jamanetworkopen.2023.36960

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