Influence of Kinesiophobia on the Excitability of Connections Parieto-frontal During a Pointing Movement in Humans

"In reality, there will not be 200 trials but 40, and no painful stimulus will be delivered. The objective is only to make the subject afraid of making a movement when the red stimulus appears, and for us to compare the situation afraid to move to that where there is no reason to be afraid in terms of corticocortical influences. The subject will then be invited, during the second experimental series, to perform the movements previously described. Whether the preparatory signal for movement is red or green, it will be followed with a delay of 500ms by a test stimulus alone (ST) or by a doublet of SC+ST stimulation. This stimulation will therefore occur during the motor programming period during which it has been shown in the literature that the pIPS exerts a facilitatory action on the primary motor cortex at a latency of 4 ms. In total, 10 ST and 10 SC-ST doublets will be delivered during the experimental series for each of the two colors, i.e. 40 stimulations in total."