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  • Title: Premotor cortex modulates somatosensory cortex during voluntary movements without proprioceptive feedback.
    Author: Christensen MS, Lundbye-Jensen J, Geertsen SS, Petersen TH, Paulson OB, Nielsen JB.
    Journal: Nat Neurosci; 2007 Apr; 10(4):417-9. PubMed ID: 17369825.
    Abstract:
    Movement perception relies on sensory feedback, but the involvement of efference copies remains unclear. We investigated movements without proprioceptive feedback using ischemic nerve block during fMRI in healthy humans, and found preserved activation of the primary somatosensory cortex. This activation was associated with increased interaction with premotor cortex during voluntary movements, which demonstrates that perception of movements relies in part on predictions of sensory consequences of voluntary movements that are mediated by the premotor cortex.
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