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Sleep, rest-activity rhythm, cognitive and emotional symptoms in adult ADHD: unraveling the links with an actimetry-based approach

Walter A, Martz É, Weiner L, Comtet H, Glacet R, Kilic-Huck Ü, Bourgin P, Schröder CM et al.

BMC psychiatry, 2026

47 participants · 2 citations

Abstract

Background: Attention Deficit Hyperactivity Disorder (ADHD) in adults is characterized by cognitive, behavioral and affective symptoms. Emotion dysregulation (ED), psychiatric comorbidities, and disturbances in sleep and circadian rhythms frequently co-occur with ADHD, yet their relationships have rarely been investigated using objective measures and are overlooked in therapeutic approaches. This study aimed to compare sleep and rest-activity rhythm parameters between adults with ADHD and control subjects and to examine their associations with cognitive and emotional symptoms in adults with ADHD.

Methods: Fifty-four adults with ADHD completed self-report questionnaires assessing inattention, hyperactivity/impulsivity, and emotional symptoms of ADHD, along with a neuropsychological evaluation of attentional and executive functions. Sleep patterns and rest-activity rhythm were monitored using actigraphy over a 10-days period and compared to data from 47 control participants without psychiatric or neurodevelopmental disorders, adjusting for age and sex. Relationships between ADHD symptoms, neuropsychological test results, sleep and rest-activity rhythm parameters were examined using correlation analyses.

Results: Adults with ADHD exhibited a more unstable and delayed rhythm compared to controls. Sleep and rest-activity rhythm disturbances were significantly associated with cognitive and behavioral symptoms, particularly hyperactivity. Longer sleep latency was associated with…

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Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 47 participants or records.

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