Importância da rede cortical motora na percepção de movimentos humanos

Página do item simplificado
dc.contributor.advisorBoggio, Paulo Sérgio
dc.contributor.advisor-co1Fadiga, Luciano
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/0659408656635728por
dc.contributor.authorLapenta, Olivia Morgan
dc.creator.Latteshttp://lattes.cnpq.br/2544794425079859por
dc.date.accessioned2017-05-10T14:02:17Z
dc.date.accessioned2020-05-28T18:09:21Z
dc.date.available2020-05-28T18:09:21Z
dc.date.issued2016-12-15
dc.description.abstractAction recognition is fundamental to comprehend other’s attitudes and it has been suggested that this process is mapped in an active fashion by the transposition of the observed action to our own motor repertoire. This process is mediated by the mirror neuron system, a fronto-parietal circuitry, and also activates the primary motor cortex (M1). Movement perception and the activation of this circuitry occurs even in the absence of pictorial information, for example when presenting stimuli built with point-lights (PL) distributed in the main joints. Studies evaluate the mirror neuron system activity and the enrolment of the motor network manly using transcranial magnetic stimulation (TMS), by means of motor evoked potential (MEP) and electroencephalography, by means of Mu rhythm oscillations. We elaborated two studies aiming to evaluate: 1- MEP differences TMS-induced during observation of biological and non-biological movements and the absence of movement in PL display and further if the modulation of M1 or premotor cortex (PMC) using transcranial direct current stimulation (tDCS) alters cortical excitability and the perception of the observed movements; 2-differences in MEPs and Mu rhythm measures during observation of goal-directed actions with precision or power grasp and, further, if TMS and EEG measures correlate. In study 1 we found greater MEPs during the presentation of biological and non-biological motion when compared to a static person in PL. Furthermore, anodal tDCS over M1 reduced the corticospinal excitability and the performance in the action identification task; we didn’t found effects of tDCS applied over PMC. Our findings show motor network recruitment during movement observation and, further, that M1 has an important role for action identification. In study 2 we identified differences in Mu desynchronization and in MEP amplitudes according to the stage of the observed actions. We found greater activation of the motor network during the course of action when compared to its final stage. Such process allows for anticipating the movement end and, therefore, the identification of the action goal. Moreover, only MEP measures, but not of Mu rhythm were modulated by the muscle involved in the task, differing in accordance to grasp type. Correlations between Mu and MEPs measures were not found, suggesting that albeit both represent a valid index of neural mirroring, those measures reflect different activities underlying this circuitry.eng
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superiorpor
dc.description.sponsorshipFundação de Amparo a Pesquisa do Estado de São Paulopor
dc.description.sponsorshipFundo Mackenzie de Pesquisapor
dc.formatapplication/pdf*
dc.identifier.citationLAPENTA, Olivia Morgan. Importância da rede cortical motora na percepção de movimentos humanos. 2016. 116 f. Tese( Distúrbios do Desenvolvimento) - Universidade Presbiteriana Mackenzie, São Paulo.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24548
dc.keywordsmotor ressonanceeng
dc.keywordsmirror-neuronseng
dc.keywordsaction observationeng
dc.keywordsneuromodulationeng
dc.keywordscortical excitabilityeng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Restritopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectressonância motorapor
dc.subjectneurônios-espelhopor
dc.subjectobservação de açãopor
dc.subjectneuromodulaçãopor
dc.subjectexcitabilidade corticalpor
dc.subject.cnpqCNPQ::CIENCIAS BIOLOGICAS::FISIOLOGIA::FISIOLOGIA GERAL::NEUROFISIOLOGIApor
dc.subject.cnpqCNPQ::CIENCIAS HUMANAS::PSICOLOGIA::PSICOLOGIA FISIOLOGICA::ESTIMULACAO ELETRICA E COM DROGAS COMPORTAMENTOpor
dc.subject.cnpqCNPQ::CIENCIAS HUMANAS::PSICOLOGIA::PSICOLOGIA FISIOLOGICA::NEUROLOGIA, ELETROFISIOLOGIA E COMPORTAMENTOpor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/14150/Olivia%20Morgan%20Lapenta.pdf.jpg*
dc.titleImportância da rede cortical motora na percepção de movimentos humanospor
dc.typeTesepor
local.contributor.board1Macedo, Elizeu Coutinho de
local.contributor.board1Latteshttp://lattes.cnpq.br/0683719309513445por
local.contributor.board2Brunoni, Andre Russowsky
local.contributor.board2Latteshttp://lattes.cnpq.br/7121719876219621por
local.contributor.board3Corrêa, Sônia Cavalcanti
local.contributor.board3Latteshttp://lattes.cnpq.br/7809274745895395por
local.contributor.board4Simis, Marcel
local.contributor.board4Latteshttp://lattes.cnpq.br/9111912082588964por
local.publisher.countryBrasilpor
local.publisher.departmentCentro de Ciências Biológicas e da Saúde (CCBS)por
local.publisher.initialsUPMpor
local.publisher.programDistúrbios do Desenvolvimentopor
Arquivos
Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
Olivia Morgan Lapenta.pdf
Tamanho:
10.98 KB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Coleções
Distúrbios do Desenvolvimento - Teses - CCBS Higienópolis