The current study aimed to investigate temporal processing in Chinese children with Attention-Deficit-Hyperactivity Disorder(ADHD) using time production, time reproduction paradigm and duration discrimination tasks. A battery of tests specifically designed to measure temporal processing was administered to 94 children with ADHD and 100 demographically matched healthy children. A multivariate analysis of variance (MANOVA) and a repeated measure MANOVA indicated that children with ADHD were impaired in time processing functions. The results of pairwise comparisons showed that the probands with a family history of ADHD performed significantly worse than those without family history in the time production tasks and the time reproduction task. Logistic regression analysis showed duration discrimination had a significant role in predicting whether the children were suffering from ADHD or not, while temporal processing had a significant role in predicting whether the ADHD children had a family history or not. This study provides further support for the existence of a generic temporal processing impairment in ADHD children and suggests that abnormalities in time processing and ADHD share some common genetic factors.

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temporal processing duration discrimination time production time reproduction paradigm regression

Jia, Huang Bin-rang, Yang Xiao-bing, Zou Jin, Jing Gang, Pen Gráinne M, McAlonan Raymond C K, Chan,.Temporal processing impairment in children with attention-deficit-hyperactivity disorder.. 33 (2),538-48.

Jia, Huang Bin-rang, Yang Xiao-bing, Zou Jin, Jing Gang, Pen Gráinne M, McAlonan Raymond C K, Chan,"Temporal processing impairment in children with attention-deficit-hyperactivity disorder." 33

Jia, Huang Bin-rang, Yang Xiao-bing, Zou Jin, Jing Gang, Pen Gráinne M, McAlonan Raymond C K, Chan,"Temporal processing impairment in children with attention-deficit-hyperactivity disorder."