title: Posterior parietal cortex role in a sensorimotor task performance.
abstract: This study aimed to elucidate electrophysiological and cortical mechanisms involved in anticipatory actions when individuals had to catch balls in free drop; specifically through quantitative electroencephalography (qEEG) alpha absolute power changes. The sample was composed for 23 health subjects, both sexes, with ages varying between 25 and 40 years, absence of mental and physical illness, right handed and don't make use of any psychoactive or psychotropic substance at the time of the study. The experiment consisted of a task of catching balls in free drop. The three-way ANOVA analysis demonstrated an interaction between moment and position factors in left parietal posterior cortex (PPC) (p=0.001). Through the experimental task employed, this area demonstrated a differentiated activity involving expectation, planning and preparedness in the ball's drop task.
authors.affiliation: Laboratório de Mapeamento Cerebral e Integração Sensório-Motora, Programa de Pós-Graduação em Psiquiatria e Saúde Mental, Instituto de Psiquiatria da Universidade do Brasil, Universidade Federal do Rio de Janeiro, Brazil.
authors.forename: Sergio
authors.initials: S
authors.lastname: Nader
authors.forename: Sergio
authors.initials: S
authors.lastname: Machado
authors.forename: Marlo
authors.initials: M
authors.lastname: Cunha
authors.forename: Cláudio Elidio
authors.initials: CE
authors.lastname: Portella
authors.forename: Julio Guilherme
authors.initials: JG
authors.lastname: Silva
authors.forename: Bruna
authors.initials: B
authors.lastname: Velasques
authors.forename: Victor Hugo
authors.initials: VH
authors.lastname: Bastos
authors.forename: Luis
authors.initials: L
authors.lastname: Basile
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
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D004569:Electroencephalography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009044:Motor Cortex / Q000502:physiology; D010296:Parietal Lobe / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D014796:Visual Perception / Q000502:physiology