Pereira Júnior, AntonioSouza, Rafaela Faustino Lacerda de2016-09-032016-09-032016-04-28SOUZA, Rafaela Faustino Lacerda de. Influência da postura da mão na identificação da lateralidade: uma análise eletrofisiológica. 2016. 93f. Dissertação (Mestrado em Neurociências) - Universidade Federal do Rio Grande do Norte, Universidade Federal do Rio Grande do Norte, Natal, 2016.https://repositorio.ufrn.br/jspui/handle/123456789/21341Recent studies demonstrated that during third-person handedness recognition the subject engages motor imagery processes. However, little is known about the functional aspects of sensorimotor regions’ participation in this process. The present study aims to show how motor imagery of body parts during handedness judgment influences neural processing in these regions by modulating the oscillatory behavior of neuronal populations in both the alpha and beta frequencies. Therefore, we analyzed the event-related spectral perturbation of electroencephalography (EEG) recordings of 20 subjects engaged in handedness recognition of stimuli presented on a computer screen. The results revealed the supression of both alpha and beta EEG amplitude on sensorimotor regions and that characteristics of the stimulus (such as hand orientation, vision, posture fingers and laterality) were able to modulate these oscilatory components in distinct regions, suggesting different stages of task processing.Acesso AbertoRotação mentalReconhecimento da lateralidade de mãosImagética motoraOscilações neuronaisCórtexmasterThesisCNPQ::OUTROS::CIENCIAS: NEUROCIÊNCIAS