聴性脳幹反応の空間ベクトル解析

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The purpose of the present study is to clarify the origins of auditory brain stem responses. We recorded the auditory brain stem responses by three ortho-diagonal leads (X-axis; right ear lobe to left ear lobe, Y-axis; vertex to submental, Z-axis; forehead to inion). We studied the wave-forms on each three plane, frontal, sagittal and horizontal, and analysed their vectors on the basis of Lissajous figure. Lissajous figures revealed the following facts.1) Vector of N1 is almost horizontal and directs toward the non-stimulated side.2) N2 seems to be derived from the double firings of the auditory nevers and cochlear nuclei.3) Origins of N3 are the activities of the circuits of the auditory pathways in the brain stem.4) Vector of N5 is the largest of five responses, and directs toward the fronto-parietal region, tilting slightly to the non-stimulated side.
社団法人日本耳鼻咽喉科学会の論文