Measuring motor imagery ability: A review

Treinabilidade da capacidade de imaginação em indivíduos pós acidente vascular encefálico

“…Na perspectiva externa, o indivíduo assume o papel de expectador, observando a sua própria execução como se estivesse vendo um filme dele mesmo. Na perspectiva interna, o indivíduo identifica-se intensa e profundamente com os processos internos que ocorrem durante a imaginação do movimento, com ênfase na sensação cinestésica gerada, procurando vivenciar a ação como se estivesse executando-a realmente (MCAVINUE; ROBERTSON, 2008;WEIBERG;GOULD, 2001).…”

“…A habilidade em gerar imagens vívidas por pessoas acometidas por AVE ainda é um fator bastante questionado, pois se sabe que quanto melhor a capacidade de imaginação dos sujeitos, maior será o benefício desta prática (STEFANELLO; MARQUES; RODACKI, 2010;MCAVINUE;ROBERTSON, 2008;LUTZ, 2003). Entretanto, a maioria dos estudos sobre imaginação em indivíduos com AVE não avaliaram a capacidade dos sujeitos gerarem imagens vívidas (capacidade de imaginação), tampouco propuseram um treinamento específico para melhorar esta capacidade antes de usá-la como ferramenta para melhorar determinadas habilidades motoras (PAGE; LEVINE; LEONARD, 2005;CROSBIE et al, 2004;LIU, 2009 (VEALEY, 1991).…”

Avaliação da capacidade e treinabilidade da imaginação motora

“…Despite substantial differences between imagined and executed movements, it has been emphasized that the neural processes involved in imagined actions (inflow and outflow of information) are more related to the degree of activation than to the type of activation 12,13 . Evidence indicates that the effectiveness of imagery is intimately related to the subject's ability to generate vivid and manageable images, which depends on the level of the subject's conscience during mental performance of the motor action 7,8 . Vividness (clearness of the images) highlights the details of the image in all dimensions (visualizing images, listening to sounds, feeling body movements, perceiving emotions, mood and mental state) and allows the subject to bring imagination as close as possible to the real execution of the movement.…”

“…This equivalence between simulation and execution suggests that the preparation of the action and the movement programming are functionally similar when an action is executed or imagined 2,5,6 . Therefore, if a movement is vividly imagined, the same neural pathways used during the movement may facilitate its physical performance 7,8 . The conscious motor representations become more effective when a movement is performed because it depends on an internal imaginative representation, in which a multisensory response with a large kinesthetic component is generated 4,8 .…”

“…Therefore, if a movement is vividly imagined, the same neural pathways used during the movement may facilitate its physical performance 7,8 . The conscious motor representations become more effective when a movement is performed because it depends on an internal imaginative representation, in which a multisensory response with a large kinesthetic component is generated 4,8 . The kinesthetic component permits subjects to feel themselves performing the imagined movement in a first person perspective 3,9 and allows the system to determine the body segment position and to identify the agent that causes movement 10 .…”