Effect of contralateral acoustic stimulation on 2f1−f2 acoustic distortion in human ears
نویسندگان
چکیده
منابع مشابه
Effect of contralateral stimulation on acoustic reflectance measurements.
INTRODUCTION Acoustic reflectance is an important tool in the assessment of middle ear afflictions, and the method is considered advantageous in relation to tympanometry. There has been a growing interest in the study of contralateral acoustic stimulation and its effect on the activation of the efferent auditory pathway. Studies have shown that the introduction of simultaneous stimulation in th...
متن کامل[Changes in human spontaneous otoacoustic emissions with contralateral acoustic stimulation].
According to current cochlear concepts, spontaneous otoacoustic emissions (SOAEs) are thought to be the product of outer hair cell (OHCs) movement. Furthermore, efferent neurofibers from the olivocochlear bundle primarily innervate OHCs. Thus, we designed this investigation to determine changes in SOAE under conditions of contralateral acoustic stimulation. Fouty-two normal ears of 34 subjects ...
متن کاملContralateral acoustic stimulation alters the magnitude and phase of distortion product otoacoustic emissions.
Activation of medial olivocochlear efferents through contralateral acoustic stimulation (CAS) has been shown to modulate distortion product otoacoustic emission (DPOAE) level in various ways (enhancement, reduction, or no change). The goal of this study was to investigate the effect of a range of CAS levels on DPOAE fine structure. The 2f(1)-f(2) DPOAE was recorded (f(2)/f(1)=1.22, L(1)=55 dB, ...
متن کاملTime Course of the Suppression Effect on Transient Evoked Otoacoustic Emissions by Prolonged Contralateral Acoustic Stimulation
BACKGROUND AND OBJECTIVES Although the suppressive effect of the medial efferent acoustic reflex is well known, the time course of this effect over prolonged periods has yet to be fully evaluated. We assessed time-dependent change in the suppression of transient evoked otoacoustic emissions (TEOAEs) by the medial efferent acoustic reflex over a relatively long period. SUBJECTS AND METHODS We ...
متن کاملEffect of Contralateral Noise on Acoustic Reflex Latency Measures.
OBJECTIVE The present study was conducted to determine the effect of contralateral broadband noise on acoustic reflex latency (ARL). MATERIALS AND METHODS Acoustic reflex latency changes for 10 and 90% on- and off-time acoustic reflexes with contralateral broadband noise were measured in 30 adults with normal hearing. RESULTS The results of the study demonstrate that there was a latency pro...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1989
ISSN: 0001-4966
DOI: 10.1121/1.2027096