Intention of Movement PP

In the article, Movement Intention After Parietal Cortex, the hypothesis that is discussed is whether or not direct stimulation of either the parietal or premotor cortex in the brain would result in direct movement of different regions of the body. The study was conducted by using seven human patients that either had a tumor in anterior or posterior of the central sulcus. In order to find specific sites for stimulation, an MRI was used to find 57 sites. Patients were under local anesthesia and as specific regions were stimulated the patients were asked whether they felt something or moved a body part. The results of the study showed that premotor cortex stimulation resulted in movement while parietal stimulation resulted in the intentions of movement. At higher intensity of stimulation the parietal stimulation lead to the patients believing the movement was accomplished. Overall, the study showed that before people perform a movement there in an intention of conscious movement in the parietal.