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Time perception: modality and duration effects in attention-deficit/hyperactivity disorder (ADHD).
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- Author(s): Toplak, Maggie E.; Tannock, Rosemary
- Source:
Journal of Abnormal Child Psychology; Oct2005, Vol. 33 Issue 5, p639-654, 16p- Subject Terms:
ATTENTION-deficit hyperactivity disorder; TIME perception; MEMORY; BEHAVIOR disorders in children; HEARING disorders; SHORT-term memory; COMPARATIVE studies; DISCRIMINATION (Sociology); NEUROPSYCHOLOGICAL tests; RESEARCH methodology; MEDICAL cooperation; CLASSIFICATION of mental disorders; SENSORY perception; RESEARCH; RESEARCH funding; EVALUATION research; PERCEPTUAL disorders; DIAGNOSIS - Source:
- Additional Information
- Abstract: Time perception performance was systematically investigated in adolescents with and without attention-deficit/hyperactivity disorder (ADHD). Specifically, the effects of manipulating modality (auditory and visual) and length of duration (200 and 1000 ms) were examined. Forty-six adolescents with ADHD and 44 controls were administered four duration discrimination tasks and two control tasks, and a set of standardized measures. Participants with ADHD had higher thresholds than controls on all of the duration discrimination tasks, with the largest effect size obtained on the visual 1000 ms duration discrimination task. No group differences were observed on the control tasks. Visual-spatial memory was found to be a significant predictor of visual and auditory duration discrimination at longer intervals (1000 ms) in the ADHD sample, whereas auditory verbal working memory predicted auditory discrimination at longer intervals (1000 ms) in the control sample. These group differences suggest impairments in basic timing mechanisms in ADHD. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Abnormal Child Psychology is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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