Effectivity of DPOAE test applying contralateral sound load.
نویسندگان
چکیده
منابع مشابه
Age related changes to the dynamics of contralateral DPOAE suppression in human subjects
BACKGROUND The two ears are linked with a neural pathway such that stimulation of one ear has a modulating effect on the contralateral cochlea. This is mediated by cochlear afferent neurons connecting with olivo-cochlear efferents. The monitoring of this pathway is easily achieved by measuring contralateral suppression of otoacoustic emissions, and there is some clinical value in the ability to...
متن کاملContralateral acoustic stimulation modulates low-frequency biasing of DPOAE: efferent influence on cochlear amplifier operating state?
The mammalian efferent medial olivocochlear system modulates active amplification of low-level sounds in the cochlea. Changes of the cochlear amplifier can be monitored by distortion product otoacoustic emissions (DPOAEs). The quadratic distortion product f2-f1 is known to be sensitive to changes in the operating point of the amplifier transfer function. We investigated the effect of contralate...
متن کاملTITEL 1 Contralateral acoustic stimulation modulates low - frequency biasing of DPOAE – efferent
1 The mammalian efferent medial olivo-cochlear system modulates active amplification of low2 level sounds in the cochlea. Changes of the cochlear amplifier can be monitored by distortion 3 product otoacoustic emissions (DPOAEs). The quadratic distortion product f2-f1 is known to 4 be sensitive to changes in the operating point of the amplifier transfer function. We 5 investigated the effect of ...
متن کاملRapid adaptation of the 2f1-f2 DPOAE in humans: binaural and contralateral stimulation effects.
The present data were collected in humans to characterize the effects of monaural and binaural stimulation and contralateral noise on the 2f1-f2 distortion-product otoacoustic emission (DPOAE) adaptation response. DPOAE levels (f2/f1=1.21, L1=70 dB SPL, L2=65 dB SPL) were measured in both ears for a range of f2 frequencies (1.2 to 10.0 kHz). The f2 frequency producing the largest amplitude DPOA...
متن کاملCharacterization of DPOAE fine structure
The distortion product otoacoustic emission (DPOAE) fine structure is revealed, when measuring DPOAE with a very fine frequency resolution. It is characterized by consistent maxima and minima with notches of up to 20 dB depth. The fine structure is known also from absolute hearing thresholds, and has recently been demonstrated to exist in low level equal-loudness contours. The character of the ...
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ژورنال
عنوان ژورنال: AUDIOLOGY JAPAN
سال: 1996
ISSN: 1883-7301,0303-8106
DOI: 10.4295/audiology.39.295