title: Does immobilization of dependent hand promote adaptative changes in cerebral cortex? An analysis through qEEG asymmetry.
abstract: This study aimed to elucidate electrophysiological and cortical mechanisms involved when 15 healthy right-handed subjects executed an index finger flexion and extension task before and after hand immobilization, using qEEG beta band (13-30Hz) asymmetry. This beta band is involved in motor activity and sensorial factors. Our hypothesis is that an increase in beta band asymmetry in pre-frontal, motor and parietal areas will occur in post-hand immobilization, because these areas need to reorganize for new planning, preparation and voluntary motor control. We found increase in beta band asymmetry during post-treatment task. We concluded that beta band asymmetry plays an important role in the analysis of cortical changes in several brain areas when associated to motor task. Furthermore, we assume that 48h of hand immobilization change cortical functioning.
authors.affiliation: Brain Mapping and Sensory Motor Integration, Institute of Psychiatry of Federal University of Rio de Janeiro (IPUB/UFRJ), Brazil.
authors.forename: Fernanda
authors.initials: F
authors.lastname: Manaia
authors.forename: Silmar
authors.initials: S
authors.lastname: Teixeira
authors.forename: Bruna
authors.initials: B
authors.lastname: Velasques
authors.forename: Juliana
authors.initials: J
authors.lastname: Bittencourt
authors.forename: José Inácio
authors.initials: JI
authors.lastname: Salles
authors.forename: Oscar
authors.initials: O
authors.lastname: Arias-Carrión
authors.forename: Luis F
authors.initials: LF
authors.lastname: Basile
authors.forename: Caroline
authors.initials: C
authors.lastname: Peressutti
authors.forename: Marcele Regine
authors.initials: MR
authors.lastname: de Carvalho
authors.forename: Mauricio
authors.initials: M
authors.lastname: Cagy
authors.forename: Roberto
authors.initials: R
authors.lastname: Piedade
authors.forename: Pedro
authors.initials: P
authors.lastname: Ribeiro
authors.forename: Sérgio
authors.initials: S
authors.lastname: Machado
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D001611:Beta Rhythm; D002540:Cerebral Cortex / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D006225:Hand / Q000502:physiology*; D006801:Humans; D007103:Immobilization; D008297:Male; D009044:Motor Cortex / Q000502:physiology; D009068:Movement; D010296:Parietal Lobe / Q000502:physiology; D017397:Prefrontal Cortex / Q000502:physiology; D055815:Young Adult