Posterior parietal cortex role in a sensorimotor task performance.
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.
Nader
Sergio
S
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.
Machado
Sergio
S
Cunha
Marlo
M
Portella
Cláudio Elidio
CE
Silva
Julio Guilherme
JG
Velasques
Bruna
B
Bastos
Victor Hugo
VH
Basile
Luis
L
Cagy
Mauricio
M
Piedade
Roberto
R
Ribeiro
Pedro
P
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