Transcranial direct current stimulation modulates nociceptive processing in the spinal cord

Takeaway 

  • Primary motor cortex (M1) transcranial direct current stimulation (tDCS) indirectly modulates nociceptive processing in the spinal cord.

Why this matters

    tDCS over the M1 has shown efficacy in a number of chronic pain conditions but despite attempts to better understand the analgesic mechanisms, it is currently unknown whether it modulates the central integration of spinal nociception.