Attention-deficit hyperactivity disorder involves differential cortical processing in a visual spatial attention paradigm

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dc.contributor.authorLopez, V.
dc.contributor.authorLopez Calderon, J.
dc.contributor.authorOrtega, R.
dc.contributor.authorKreither, J.
dc.contributor.authorCarrasco, X.
dc.contributor.authorRothhammer, P.
dc.contributor.authorRothhammer, F.
dc.contributor.authorRosas, R.
dc.contributor.authorAboitiz, F.
dc.date.accessioned2024-01-10T12:04:24Z
dc.date.available2024-01-10T12:04:24Z
dc.date.issued2006
dc.description.abstractObjective: Inattention is undoubtedly one of the main characteristics of Attention-deficit hyperactivity disorder (ADHD). Nevertheless, a growing corpus of evidence shows that not all attentional processes are affected in this condition. This study aimed to explore the distribution of attentional resources in children with ADHD via a spatially shifted double-oddball visual task.
dc.description.abstractMethods: We recorded event-related potentials (ERPs) for all visual stimuli. Subjects were instructed to allocate attention in a specific area of visual space while ignoring all stimuli presented outside. Ten male children (age: 9-14; mean = 11.6 +/- 2.1) who met DSM-IV criteria for the ADHD combined subtype participated in the study, along with ten age- and sex-matched healthy controls (9-14; mean = 11.2 +/- 2.3).
dc.description.abstractResults: ADHD subjects showed late differential cortical responses to initially suppressed irrelevant stimuli. The amplitude of early N1-P1 components were mainly modulated by stimulus location and showed no significant differences between groups, but a late P300-like positivity was clearly evoked in the ADHD group by peripheral stimuli.
dc.description.abstractConclusions: These results suggest that ADHD may not compromise the early attentional spatial filter but rather entails a different distribution of attentional resources at later stages of cortical processing. Perhaps these differences may be attributable to individual differences in attentional mechanisms.
dc.description.abstractSignificance: ADHD may not affect initial focusing of visual attention but rather the allocation of processing resources in later stages. (c) 2006 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.
dc.fechaingreso.objetodigital2024-03-26
dc.format.extent9 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.clinph.2006.07.313
dc.identifier.eissn1872-8952
dc.identifier.issn1388-2457
dc.identifier.pubmedidMEDLINE:17000133
dc.identifier.urihttps://doi.org/10.1016/j.clinph.2006.07.313
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75786
dc.identifier.wosidWOS:000242249800020
dc.information.autorucMedicina;Aboitiz F;S/I;100165
dc.issue.numero11
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final2548
dc.pagina.inicio2540
dc.publisherELSEVIER IRELAND LTD
dc.revistaCLINICAL NEUROPHYSIOLOGY
dc.rightsacceso restringido
dc.subjectADHD
dc.subjectattention deficit
dc.subjectvisual spatial attention
dc.subjectERP
dc.subjectP300
dc.subjectEVENT-RELATED POTENTIALS
dc.subjectBRAIN POTENTIALS
dc.subjectDEFICIT/HYPERACTIVITY DISORDER
dc.subjectSELECTIVE ATTENTION
dc.subjectCHILDREN
dc.subjectMECHANISMS
dc.subjectERP
dc.subjectALLOCATION
dc.subjectCHILDHOOD
dc.subjectRELEVANCE
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleAttention-deficit hyperactivity disorder involves differential cortical processing in a visual spatial attention paradigm
dc.typeartículo
dc.volumen117
sipa.codpersvinculados100165
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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