title: Temporal processing impairment in children with attention-deficit-hyperactivity disorder.
abstract: 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.
authors: Neuropsychology and Applied Cognitive Neuroscience Laboratory, Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
authors: Jia
authors: J
authors: Huang
authors: Bin-rang
authors: BR
authors: Yang
authors: Xiao-bing
authors: XB
authors: Zou
authors: Jin
authors: J
authors: Jing
authors: Gang
authors: G
authors: Pen
authors: Gráinne M
authors: GM
authors: McAlonan
authors: Raymond C K
authors: RC
authors: Chan
mesh_terms: D044466:Asian People / Q000235:genetics* / Q000706:statistics & numerical data; D001289:Attention Deficit Disorder with Hyperactivity / Q000208:ethnology* / Q000235:genetics* / Q000503:physiopathology; D002648:Child; D002681:China / Q000453:epidemiology; D003071:Cognition / Q000502:physiology; D015897:Comorbidity; D005192:Family Health; D020022:Genetic Predisposition to Disease / Q000453:epidemiology; D006801:Humans; D007805:Language Development Disorders / Q000208:ethnology* / Q000235:genetics* / Q000503:physiopathology; D015999:Multivariate Analysis; D011930:Reaction Time / Q000502:physiology