Mechanisms of deficit of visuospatial attention shift in children with developmental coordination disorder: A neurophysiological measure of the endogenous Posner paradigm
| Autor: | Chia Liang Tsai, Hsing Hui Chiu, Rong Ju Cherng, Ya-Wen Hsu, Chien-Yu Pan |
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| Rok vydání: | 2009 |
| Předmět: |
Male
Visual perception Brain activity and meditation Cognitive Neuroscience Spatial ability Contingent Negative Variation Experimental and Cognitive Psychology Neuropsychological Tests Executive Function Child Development Arts and Humanities (miscellaneous) Event-related potential Orientation Reaction Time Developmental and Educational Psychology medicine Humans Attention Child Psychomotor learning Analysis of Variance Patient Selection Brain Electroencephalography Signal Processing Computer-Assisted Cognition medicine.disease Contingent negative variation Motor Skills Disorders Developmental disorder Neuropsychology and Physiological Psychology Space Perception Visual Perception Evoked Potentials Visual Female Cues Psychology Neuroscience Photic Stimulation Psychomotor Performance |
| Zdroj: | Brain and Cognition. 71:246-258 |
| ISSN: | 0278-2626 |
| DOI: | 10.1016/j.bandc.2009.08.006 |
| Popis: | The purpose of this study was to investigate and compare the mechanisms of brain activity, as revealed by a combination of the visuospatial attention shifting paradigm and event-related potentials (ERP) in children with developmental coordination disorder (DCD) and typically developing children. Twenty-eight DCD children and 26 typically developing children were recorded with regard to their behavioral performance and ERP measures during a variant of the endogenous Posner paradigm, in which they should react to visual targets preceded by spatial cues or presented uncued. Children with DCD showed longer reaction time and a deficit in inhibitory response capacity when compared to typically developing children. The electrophysiological characteristics also showed distinct modulatory effects upon attentional orienting, anticipatory mechanisms, and cognitive-to-motor transfer in children with DCD: longer cue-P3 and target-N1 latency, smaller target-P3 amplitude, an elongated interval between N2 and the motor response (N2-RT), and small areas on contingent negative variation (CNV). The combined analysis of behavioral performance and ERP data suggested that children with DCD had deficits of slower target identification (N1), less ability in interhemispheric (P3) and cognitive-to-motor transfer speed (N2-RT), as well as a less mature anticipatory and executive process (CNV). |
| Databáze: | OpenAIRE |
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