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Memory-guided force output is associated with self-reported ADHD symptoms in young adults

journal contribution
posted on 2023-09-01, 13:56 authored by Kristina A. Neely, Amanda P. Chennavasin, Arie Yoder, Genevieve K. R. Williams, Eric Locken, Cynthia L. Huang-Pollock
Attention-deficit/hyperactivity disorder (ADHD) is the most commonly diagnosed mental health disorder in childhood and persists into adulthood in up to 65 % of cases. ADHD is associated with adverse outcomes such as the ability to gain and maintain employment and is associated with an increased risk for substance abuse obesity workplace injuries and traffic accidents A majority of diagnosed children have motor deficits; however, few studies have examined motor deficits in young adults. This study provides a novel examination of visuomotor control of grip force in young adults with and without ADHD. Participants were instructed to maintain force production over a 20-second trial with and without real-time visual feedback about their performance. The results demonstrated that when visual feedback was available, adults with ADHD produced slightly higher grip force than controls. However, when visual feedback was removed, adults with ADHD had a faster rate of decay of force, which was associated with ADHD symptom severity and trait impulsivity. These findings suggest that there may be important differences in the way that adults with ADHD integrate visual feedback during continuous motor tasks. These may account for some of the motor impairments reported in children with ADHD. These deficits could result from (1) dysfunctional sensory motor integration and/or (2) deficits in short-term visuomotor memory.

History

Refereed

  • Yes

Volume

234

Issue number

11

Page range

3203-3212

Publication title

Experimental Brain Research

ISSN

1432-1106

Publisher

Springer

File version

  • Other

Language

  • eng

Legacy posted date

2016-07-21

Legacy creation date

2016-07-19

Legacy Faculty/School/Department

ARCHIVED Faculty of Science & Technology (until September 2018)

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