title: Slow wave maturation on a visual working memory task.
abstract: The purpose of the present study is to analyze how the Slow Wave develops in the retention period on a visual Delayed Match-to-Sample task performed by 170 subjects between 6 and 26 years old, divided into 5 age groups. In addition, a neuropsychological test (Working Memory Test Battery for Children) was correlated with this Event Related Potential (ERP) in order to observe possible relationships between Slow Wave maturation and the components of Baddeley and Hitch's Working Memory model. The results showed a slow negativity during the retention period in the posterior region in all the age groups, possibly resulting from sustained neural activity related to the visual item presented. In the anterior region, a positive slow wave was observed in the youngest subjects. Dipole analysis suggests that this fronto-central positivity in children (6-13 years old) consists of the positive side of the posterior negativity, once these subjects only needed two posterior dipoles to explain almost all the neural activity. Negative correlations were shown between the Slow Wave and the Working Memory Test Battery for Children, indicating a commonality in assessing Working Memory with the Slow Wave and the neuropsychological testing.
authors.affiliation: Human Psychobiology Laboratory, Department of Experimental Psychology, University of Seville, Spain. Electronic address: cbarriga@us.es.
authors.forename: Catarina I
authors.initials: CI
authors.lastname: Barriga-Paulino
authors.affiliation: Human Psychobiology Laboratory, Department of Experimental Psychology, University of Seville, Spain.
authors.forename: Elena I
authors.initials: EI
authors.lastname: Rodríguez-Martínez
authors.affiliation: Human Psychobiology Laboratory, Department of Experimental Psychology, University of Seville, Spain.
authors.forename: Ma Ángeles
authors.initials: MÁ
authors.lastname: Rojas-Benjumea
authors.affiliation: Human Psychobiology Laboratory, Department of Experimental Psychology, University of Seville, Spain.
authors.forename: Carlos M
authors.initials: CM
authors.lastname: Gómez
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001921:Brain / Q000502:physiology; D002648:Child; D004569:Electroencephalography; D005074:Evoked Potentials, Visual / Q000502:physiology*; D006801:Humans; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology*; D009483:Neuropsychological Tests; D014796:Visual Perception / Q000502:physiology; D055815:Young Adult
keywords: Delay Match-to-Sample task; Development; Slow Wave; Working Memory; Working Memory Test Battery for Children