Mechanisms of Deficit of Visuospatial Attention Shift in Children with Developmental Coordination Disorder: A Neurophysiological Measure of the Endogenous Posner Paradigm

Autor/inn/en	Tsai, Chia-Liang; Pan, Chien-Yu; Cherng, Rong-Ju; Hsu, Ya-Wen; Chiu, Hsing-Hui
Titel	Mechanisms of Deficit of Visuospatial Attention Shift in Children with Developmental Coordination Disorder: A Neurophysiological Measure of the Endogenous Posner Paradigm
Quelle	In: Brain and Cognition, 71 (2009) 3, S.246-258 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2009.08.006
Schlagwörter	Cues; Reaction Time; Models; Psychomotor Skills; Physiology; Neurology; Brain Hemisphere Functions; Diagnostic Tests; Neurological Impairments; Spatial Ability; Visual Perception; Measures (Individuals); Inhibition; Comparative Analysis; Motor Reactions; Identification; Cognitive Processes; Performance + Suchen Sie Ihr Suchwort? Stichwort; Reaktionsvermögen; Analogiemodell; Psychomotorische Aktivität; Physiologie; Neurologie; Diagnostic test; Diagnostischer Test; Neurodegenerative Erkrankung; Räumliches Vorstellungsvermögen; Visuelle Wahrnehmung; Messdaten; Hemmung; Identifikation; Identifizierung; Cognitive process; Kognitiver Prozess; Achievement; Leistung
Abstract	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). (Contains 5 tables and 3 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10