The purpose of this study is to measure and compare the sensory conduction velocity of median nerve measured by conventional method and somatosensory evoked potentials.

The subjects conducted in this study were 25 cases, 13 males and 12 females, ranging age from 15 to 41 years old(mean age: 27.5 years) who were healthy free from neurologic diseases.

The results obtained were summarized as follows.

1) The conventional Sensory nerve conduction study of the median nerve in the forearm 67.50 M/sec in average, 67.80±4.24 M/sec in the right and 67.21±3.62 M/sec in the left. There is no significant difference noticed between the right and left side.

2) The somatosensory evoked potential of the median nerve in the forearm showed the sensory nerve conduction velocity to be 70.91 M/sec in average, 69.59±8.35 M/sec in the right and 70.23±10.15 M/sec in the left. There is no significant difference noticed between right and left side.

3) The conduction velocity of median nerve by conventional measurement in forearm was 69.50 M/sec in average and 70.91 M/sec using somatosensory evoked potential measurement and there was no significant difference between them.