title: ADHD children outperform normal children in an artificial grammar Implicit learning task: ERP and RT evidence.
abstract: This study focuses on Implicit learning (IL) in children. One of the main debates in this field concerns the occurrence of IL indicators in experimental settings and its manifestation in different populations. In this research, we are looking for evidence of the occurrence of IL in normal children and in children with Attention Deficit Hyperactive Disorder (ADHD), based on the relationship between accuracy, reaction time and event-related potentials (ERPs). Our results show differences between the analyzed groups with respect to markers for electrophysiological activity and reaction time, but not for accuracy. In consequence, we suggest that research in IL should explore different indicators and their relationship with the cognitive processing levels involved. In addition, IL might involve different forms of information processing in normal children and children with ADHD. We discuss the possible impact of these findings for future research.
authors.affiliation: Escuela de Psicología, Campus San Joaquín, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile. rrosas@uc.cl
authors.forename: Ricardo
authors.initials: R
authors.lastname: Rosas
authors.forename: Francisco
authors.initials: F
authors.lastname: Ceric
authors.forename: Marcela
authors.initials: M
authors.lastname: Tenorio
authors.forename: Catalina
authors.initials: C
authors.lastname: Mourgues
authors.forename: Carolina
authors.initials: C
authors.lastname: Thibaut
authors.forename: Esteban
authors.initials: E
authors.lastname: Hurtado
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Aravena
mesh_terms: D001288:Attention / Q000502:physiology; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology*; D015415:Biomarkers; D001921:Brain / Q000503:physiopathology; D002648:Child; D002755:Choice Behavior; D003071:Cognition / Q000502:physiology*; D004569:Electroencephalography / Q000706:statistics & numerical data; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D005717:Games, Experimental; D006801:Humans; D007858:Learning / Q000502:physiology*; D008297:Male; D009483:Neuropsychological Tests; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology*; D014473:Unconscious, Psychology
chemical_list: D015415:Biomarkers