@article{oai:niigata-u.repo.nii.ac.jp:00020938,
 author = {本田, 吉穂},
 issue = {6},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {Jun},
 note = {Effect of the stimulus intensity and the stimulus rate on middle-latency somatosensory evoked potentials (SEP) was studied in details. These were recorded over the parietal and central scalp after median nerve stimulation. The amplitude of N32 and N60 recorded from the central scalp became maximum between 2.5 and 3 times sensory threshold. N20 recorded from the parietal scalp saturated at 3.5 times sensory threrhold. The median nerve action potential recorded at the elbow required 4 times sensory threshold for its saturation. These findings suggests that N32 and N60 (middle-latency SEP) have more effective central nervous amplifying system than N20 (short-latency SEP). When the stimulus rate decreased from 6.1Hz to 0.1Hz, we observed the amplitude of the N60 potential increased gradually and that N32 became two distinct peaks. These two peaks, N32a and N32b, could be clearly observed by the zero-phase-shift digital filtering. These findings suggest that N32 and N60 are composites of multiple waves similar to FFP (fast frequency potentials), identified as several small wavelets over the ascending and descending phases of the major negative wave of N20. These findings are compatible with the presence of polysynaptic network.},
 pages = {555--562},
 title = {正中神経刺激による中潜時体性感覚誘発電位の研究 : 刺激条件（刺激強度, 刺激頻度）の影響について},
 volume = {106},
 year = {1992}
}