ArticleNeuropsychology2025
Elongated tau in an ex-Gaussian decomposition of vocal articulation speed in children with attention deficit hyperactivity disorder.
Article in Neuropsychology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveSlower and more variable reaction time is one of the most prominent cognitive signatures in childhood attention-deficit/hyperactivity disorder (ADHD). However, standard use of tasks that involve motor responses to index "speed" potentially confounds fine-motor coordination with central cognitive processing speed. One promising alternative is a vocal articulation task, which provides a measure of speeded performance that is independent of fine-motor coordination.
methodThe present study applies an ex-Gaussian decomposition to preparatory interval (the time to initiate a vocal response) and speech rate on a speeded articulation task among children aged 8-12 with and without ADHD (
resultsThere was substantial evidence that the tail of the distribution, as indexed by the
conclusionsResults highlight the importance of adopting analytic methods that can more accurately describe performance. (PsycInfo Database Record (c) 2025 APA, all rights reserved).
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