Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder

Although there is extensive literature about the effects of stimulants on sustained attention tasks in attentional deficit/hyperactivity disorder (ADHD), little is known about the effect of these drugs on other attentional tasks involving different neural systems. In this study we measured the effec...

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Autores principales:	LÓPEZ,JAVIER, LÓPEZ,VLADIMIR, ROJAS,DANIEL, CARRASCO,XIMENA, ROTHHAMMER,PAULA, GARCÍA,RICARDO, ROTHHAMMER,FRANCISCO, ABOITIZ,FRANCISCO
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2004
Materias:	Attentional deficit EEG event-related potentials hyperactivity Stroop p300
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300010
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spelling	oai:scielo:S0716-976020040003000102005-03-14Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity DisorderLÓPEZ,JAVIERLÓPEZ,VLADIMIRROJAS,DANIELCARRASCO,XIMENAROTHHAMMER,PAULAGARCÍA,RICARDOROTHHAMMER,FRANCISCOABOITIZ,FRANCISCO Attentional deficit EEG event-related potentials hyperactivity Stroop p300 Although there is extensive literature about the effects of stimulants on sustained attention tasks in attentional deficit/hyperactivity disorder (ADHD), little is known about the effect of these drugs on other attentional tasks involving different neural systems. In this study we measured the effect of stimulants on ADHD children, both in the electroencephalographic (EEG) activity during sustained attentional tasks and in psychometric performance during selective attentional tasks. These tasks are known to rely on different cortical networks. Our results in children medicated with 10 mg of d-amphetamine administered 60 min before the study indicate (i) a significant increase in amplitude but not latency of the P300 component of the event-related potential (ERP) during the sustained attentional task and (ii) a significant improvement in the reaction times and correct responses in the selective attentional task. In addition to supporting the use of stimulants in children with attentional deficit/hyperactivity disorder, these results show a multifocal activity improvement of cortical structures linked to dopamine, and interestingly, to attention. All these analyses are framed in a wider study of diverse attentional functions in this syndrome.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.37 n.3 20042004-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300010en10.4067/S0716-97602004000300010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Attentional deficit EEG event-related potentials hyperactivity Stroop p300
spellingShingle	Attentional deficit EEG event-related potentials hyperactivity Stroop p300 LÓPEZ,JAVIER LÓPEZ,VLADIMIR ROJAS,DANIEL CARRASCO,XIMENA ROTHHAMMER,PAULA GARCÍA,RICARDO ROTHHAMMER,FRANCISCO ABOITIZ,FRANCISCO Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder
description	Although there is extensive literature about the effects of stimulants on sustained attention tasks in attentional deficit/hyperactivity disorder (ADHD), little is known about the effect of these drugs on other attentional tasks involving different neural systems. In this study we measured the effect of stimulants on ADHD children, both in the electroencephalographic (EEG) activity during sustained attentional tasks and in psychometric performance during selective attentional tasks. These tasks are known to rely on different cortical networks. Our results in children medicated with 10 mg of d-amphetamine administered 60 min before the study indicate (i) a significant increase in amplitude but not latency of the P300 component of the event-related potential (ERP) during the sustained attentional task and (ii) a significant improvement in the reaction times and correct responses in the selective attentional task. In addition to supporting the use of stimulants in children with attentional deficit/hyperactivity disorder, these results show a multifocal activity improvement of cortical structures linked to dopamine, and interestingly, to attention. All these analyses are framed in a wider study of diverse attentional functions in this syndrome.
author	LÓPEZ,JAVIER LÓPEZ,VLADIMIR ROJAS,DANIEL CARRASCO,XIMENA ROTHHAMMER,PAULA GARCÍA,RICARDO ROTHHAMMER,FRANCISCO ABOITIZ,FRANCISCO
author_facet	LÓPEZ,JAVIER LÓPEZ,VLADIMIR ROJAS,DANIEL CARRASCO,XIMENA ROTHHAMMER,PAULA GARCÍA,RICARDO ROTHHAMMER,FRANCISCO ABOITIZ,FRANCISCO
author_sort	LÓPEZ,JAVIER
title	Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder
title_short	Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder
title_full	Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder
title_fullStr	Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder
title_full_unstemmed	Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder
title_sort	effect of psychostimulants on distinct attentional parameters in attentional deficit/hyperactivity disorder
publisher	Sociedad de Biología de Chile
publishDate	2004
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000300010
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Effect of Psychostimulants on Distinct Attentional Parameters in Attentional Deficit/Hyperactivity Disorder

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