Prediction of aided and unaided audiograms using sound-field auditory steady-state evoked responses.

نویسندگان

  • Rafi Shemesh
  • Joseph Attias
  • Hassan Magdoub
  • Ben I Nageris
چکیده

OBJECTIVE To assess sound field auditory thresholds of hearing-impaired adults by using auditory steady-state evoked responses (ASSRs). DESIGN ASSRs were recorded to carrier frequencies of 500, 1000, 2000, and 4000 Hz, each uniquely modulated at a single frequency of 80-100 Hz. ASSR thresholds were compared to behavioral auditory thresholds. STUDY SAMPLE Twenty adults (11 male, age 35.6 years) with moderate-severe sensorineural hearing loss who had used hearing aids, and 10 normal-hearing subjects (mean age 22.4 years). RESULTS For most frequencies, behavioral sound-field thresholds were slightly lower than ASSR thresholds in both aided and unaided conditions, with a significant correlation between them. Differences between ASSR and behavioral thresholds ranged between 516 dB in the unaided and between 5-16 dB in the aided condition. The ASSR amplitude growth function to 2000 Hz was steeper in both the aided and unaided conditions than in the normal-hearing group. CONCLUSIONS Sound-field ASSRs can predict behavioral auditory thresholds in both the unaided and aided condition, as well as behavioral functional gains. The ASSR growth function for 2000 Hz is suggested to reflect an underlying mechanism of intensity encoding common to abnormal loudness perception frequently reported in cases of cochlear hearing loss.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The relationship between cortical auditory evoked potential (CAEP) detection and estimated audibility in infants with sensorineural hearing loss.

OBJECTIVE To determine the effectiveness of objective statistical detection in CAEP testing to evaluate audibility in young infants with sensorineural hearing loss. DESIGN CAEP recordings to speech-based stimuli were made at three presentation levels (55, 65, or 75 dB SPL) when a group of hearing-impaired infants were either aided or unaided. Later-obtained behavioral audiograms were used as ...

متن کامل

Cortical Evoked Potentials and Hearing Aids in Individuals with Auditory Dys-Synchrony.

OBJECTIVE The purpose of the present study was to investigate the relationship between cortical processing of speech and benefit from hearing aids in individuals with auditory dys-synchrony. MATERIALS AND METHODS Data were collected from 38 individuals with auditory dys-synchrony. Participants were selected based on hearing thresholds, middle ear reflexes, otoacoustic emissions, and auditory ...

متن کامل

Cortical auditory evoked potential testing in infants and young children

The implementation of universal newborn hearing screening programmes throughout the world has increased the need for reliable, objective techniques for fitting and evaluating hearing aids in young infants. For infants found to have a hearing loss as a result of newborn hearing screening intervention, including hearing aid fitting, is typically occurring by age 6-8 weeks. It is difficult to asse...

متن کامل

Effect of Mild Cognitive Impairment and Alzheimer Disease on Auditory Steady-State Responses

Introduction: Mild Cognitive Impairment (MCI), a disorder of the elderly people, is difficult to diagnose and often progresses to Alzheimer Disease (AD). Temporal region is one of the initial areas, which gets impaired in the early stage of AD. Therefore, auditory cortical evoked potential could be a valuable neuromarker for detecting MCI and AD.  Methods: In this study, the thresholds of...

متن کامل

Evidence against attentional state modulating scalp-recorded auditory brainstem steady-state responses.

Auditory brainstem responses (ABRs) and their steady-state counterpart (subcortical steady-state responses, SSSRs) are generally thought to be insensitive to cognitive demands. However, a handful of studies report that SSSRs are modulated depending on the subject׳s focus of attention, either towards or away from an auditory stimulus. Here, we explored whether attentional focus affects the envel...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • International journal of audiology

دوره 51 10  شماره 

صفحات  -

تاریخ انتشار 2012