[The cerebral control of afferent somatosensory projections]

Cortical and dorsal column nuclei somatosensory evoked potentials (SEP) induced by electrical stimulation of the median nerve were recorded and analysed in 16 healthy volunteers practising transcendental meditation (TM) for two years. The records were performed before and during TM. The SEP changes during TM consisted of an increase in early SEP components amplitude. There were no changes in early SEP components peak latencies during TM.