청성유발전위를 기록하는 데 사용되는 단기지속 자극음의 교정 (Calibration of Short-Duration Stimuli Used in Auditory Evoked Potentials)

서지정보

· 발행기관 : 한국청각언어재활학회
· 수록지 정보 : Audiology and Speech Research / 14권 / 1호 / 1 ~ 10페이지
· 저자명 : 김진동

초록

Auditory evoked potentials (AEPs) are measured for auditory threshold estimation and neuro-otologic assessment and are generally evoked by short-duration signals. The purpose of this paper is to provide information about the calibration of short-duration stimuli for the recording of AEPs. Since there are no national standards concerning the measurement of short-duration stimuli, calibration of shortduration stimuli are introduced in reference to the newest version of international standards. Especially, the behavioral and physical calibration of clicks and tone-bursts used in the AEP system for early AEPs are focused on and explained. Two of the recent international standards (IEC 60645-3:2007, ISO 389-6:2007) can help to guide the calibration of short-duration stimuli. In these standards, the reference equivalent threshold sound pressure levels based on the peak-to-peak equivalent sound pressure level (p-p.e.SPL) is defined as the calibration value of clicks and tone-bursts. We need to quantify the level of short-duration stimuli using the p-p.e.SPL approach. However, some researchers have found that even these standards are still lacking or inadequate. This paper will provide useful information about the calibration of short-duration stimuli to technicians and audiologists who regularly check the AEP system. It is also important to understand additional measures (peak SPL, baseline-to-peak equivalent SPL) for quantifying short-duration stimulus levels.

영어초록

Auditory evoked potentials (AEPs) are measured for auditory threshold estimation and neuro-otologic assessment and are generally evoked by short-duration signals. The purpose of this paper is to provide information about the calibration of short-duration stimuli for the recording of AEPs. Since there are no national standards concerning the measurement of short-duration stimuli, calibration of shortduration stimuli are introduced in reference to the newest version of international standards. Especially, the behavioral and physical calibration of clicks and tone-bursts used in the AEP system for early AEPs are focused on and explained. Two of the recent international standards (IEC 60645-3:2007, ISO 389-6:2007) can help to guide the calibration of short-duration stimuli. In these standards, the reference equivalent threshold sound pressure levels based on the peak-to-peak equivalent sound pressure level (p-p.e.SPL) is defined as the calibration value of clicks and tone-bursts. We need to quantify the level of short-duration stimuli using the p-p.e.SPL approach. However, some researchers have found that even these standards are still lacking or inadequate. This paper will provide useful information about the calibration of short-duration stimuli to technicians and audiologists who regularly check the AEP system. It is also important to understand additional measures (peak SPL, baseline-to-peak equivalent SPL) for quantifying short-duration stimulus levels.

참고자료

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