Immediate Transcallosal Reorganization of the Somatosensory Cortex following Ipsilateral Anesthesia

Long-term as well as immediate short-lasting cortical reorganization of the somatosensory cortex following an alteration of the peripheral sensoric input is well established. Sustained attention to the peripheral stimulation modulates the reorganization process. In this study we investigate if a temporary deafferentiation of the contralateral hand results in a different topical arrangement of the somatosensory evoked potentials (SEP) following digit stimulation. SEPs were recorded following electric stimulation of digit D1 and D5 at the left hand before and after anesthesia was applied to D2– D4 at the right han…