加算平均法による眼輪筋反射の検討

概要

論文の詳細を見る
Averaging of blink reflex responses was of particular value in detecting a very small potential of R1 in patients with severe facial nerve palsy when the conventional single stimulation was inefficient. To find the most suitable stimulus interval for averaging, recovery cycle of R1 was studied. The R1 recovery curve could be divided into four phases. The initial facilitation phase at the interval of 5 msec was followed by a brief phase of depression. It was further followed by a second facilitation phase with the maximum of about 60 msec. Lastly the recovery curve returned to almost 100% level after 100 msec. Due to the second facilitation phase, stimuli given at the interval of 60 msec were efficient for averaging blink reflex responses. Though Ri to the second stimulus at the interval may have overlapped with R2 to the first stimulus, averaging of responses made R1 more prominent and R2 more inconspicuous, because R1 had a constant latency while R2 a variable one to each stimulus.
耳鼻と臨床会の論文