Contralateral Suppression of Distortion Product Otoacoustic Emission in Children with Auditory Processing Disorders
نویسندگان
چکیده
منابع مشابه
Contralateral suppression of otoacoustic emission in patients with tinnitus.
INTRODUCTION The medial olivocochlear bundle effect is studied through the suppression of otoacoustic emissions and seems to be influenced by the laterality of the central nervous system, presenting no symmetry between right and left ear. A dysfunction of this bundle may be involved in the generation of tinnitus, although this fact was not confirmed. OBJECTIVES Study the suppression of distor...
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4 The influence of the second source of distortion product otoacoustic emissions (DPOAE) on DPOAE input/output functions 41 INTRODUCTION 42 I. EXPERIMENTAL METHODS 45 A. Subjects 45 B. Instrumentation and signal processing 45 C. Calibration 46 D. DPOAE measurements 46 II. DATA ANALYSIS 47 A. Separation of DPOAE components via time windowing 47 B. DPOAE threshold according to Boege and Janssen 5...
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Introduction: Tinnitus is a perception of sound without external source. The exact etiology of tinnitus is not fully understood, although some researchers believe that the condition usually starts in the cochlea. The aim of this study was to determine the potential contribution of outer hair cell dysfunction to chronic tinnitus, by application of Distortion-Product Evoked Otoacoustic Emission (...
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Distortion product otoacoustic emission (DPOAE) suppression measurements were made in 20 subjects with normal hearing and 21 subjects with mild-to-moderate hearing loss. The probe consisted of two primary tones (f2, f1), with f2 held constant at 4 kHz and f2/f1 = 1.22. Primary levels (L1, L2) were set according to the equation L1 = 0.4 L2 + 39 dB [Kummer et al., J. Acoust. Soc. Am. 103, 3431-34...
متن کاملDistortion product otoacoustic emission suppression tuning curves in human adults and neonates.
Distortion product otoacoustic emission (DPOAE) iso-suppression tuning curves (STC) were generated in 15 normal-hearing adults and 16 healthy term-born neonates for three f2 frequencies. The 2f1-f2 DPOAE was elicited using f2/f1 = 1.2, LI = 1.2, LI = 65 and L2 = 50 dB SPL. A suppressor tone was presented at frequencies ranging from 1 octave below to 1/4 octave above f2 and varied in level until...
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ژورنال
عنوان ژورنال: Journal of Otology
سال: 2014
ISSN: 1672-2930
DOI: 10.1016/s1672-2930(14)50004-9