Asymmetric hearing thresholds are associated with hyperacusis in a large clinical population
Hear Res. 2023 Jul 15;437:108854. doi: 10.1016/j.heares.2023.108854. Online ahead of print.ABSTRACTHyperacusis is a debilitating auditory condition whose characterization is largely qualitative and is typically based on small participant cohorts. Here, we characterize the hearing and demographic profiles of adults who reported hyperacusis upon audiological evaluation at a large medical center. Audiometric data from 626 adults (age 18-80 years) with documented hyperacusis were retrospectively extracted from medical records and compared to an age- and sex-matched reference group of patients from the same clinic who did not r...
Source: Hearing Research - July 24, 2023 Category: Audiology Authors: Kelly N Jahn Daniel B Polley Source Type: research

Asymmetric hearing thresholds are associated with hyperacusis in a large clinical population
Hear Res. 2023 Jul 15;437:108854. doi: 10.1016/j.heares.2023.108854. Online ahead of print.ABSTRACTHyperacusis is a debilitating auditory condition whose characterization is largely qualitative and is typically based on small participant cohorts. Here, we characterize the hearing and demographic profiles of adults who reported hyperacusis upon audiological evaluation at a large medical center. Audiometric data from 626 adults (age 18-80 years) with documented hyperacusis were retrospectively extracted from medical records and compared to an age- and sex-matched reference group of patients from the same clinic who did not r...
Source: Hearing Research - July 24, 2023 Category: Audiology Authors: Kelly N Jahn Daniel B Polley Source Type: research

Asymmetric hearing thresholds are associated with hyperacusis in a large clinical population
Hear Res. 2023 Jul 15;437:108854. doi: 10.1016/j.heares.2023.108854. Online ahead of print.ABSTRACTHyperacusis is a debilitating auditory condition whose characterization is largely qualitative and is typically based on small participant cohorts. Here, we characterize the hearing and demographic profiles of adults who reported hyperacusis upon audiological evaluation at a large medical center. Audiometric data from 626 adults (age 18-80 years) with documented hyperacusis were retrospectively extracted from medical records and compared to an age- and sex-matched reference group of patients from the same clinic who did not r...
Source: Hearing Research - July 24, 2023 Category: Audiology Authors: Kelly N Jahn Daniel B Polley Source Type: research

Asymmetric hearing thresholds are associated with hyperacusis in a large clinical population
Hear Res. 2023 Jul 15;437:108854. doi: 10.1016/j.heares.2023.108854. Online ahead of print.ABSTRACTHyperacusis is a debilitating auditory condition whose characterization is largely qualitative and is typically based on small participant cohorts. Here, we characterize the hearing and demographic profiles of adults who reported hyperacusis upon audiological evaluation at a large medical center. Audiometric data from 626 adults (age 18-80 years) with documented hyperacusis were retrospectively extracted from medical records and compared to an age- and sex-matched reference group of patients from the same clinic who did not r...
Source: Hearing Research - July 24, 2023 Category: Audiology Authors: Kelly N Jahn Daniel B Polley Source Type: research

Inter-aural separation during hearing by bilateral bone conduction stimulation
In this study, the prominence of cross-head transmission in BC hearing is addressed using the fact that ipsilateral cochlear excitation can be canceled by controlled bilateral BC stimulation. A cancellation experiment was conducted on twenty participants with normal hearing at thirteen third-octave frequencies between 250 and 4000 Hz. Both stationary and transient BC stimulation at the mastoid was used. The technique employed multiple stages of masking enabling adjustments of the stimulation level and phase until the tones got canceled in the ipsilateral ear. In addition, the ear canal sound pressure was obtained for ipsil...
Source: Hearing Research - July 18, 2023 Category: Audiology Authors: Sudeep Surendran Stefan Stenfelt Source Type: research

Inter-aural separation during hearing by bilateral bone conduction stimulation
In this study, the prominence of cross-head transmission in BC hearing is addressed using the fact that ipsilateral cochlear excitation can be canceled by controlled bilateral BC stimulation. A cancellation experiment was conducted on twenty participants with normal hearing at thirteen third-octave frequencies between 250 and 4000 Hz. Both stationary and transient BC stimulation at the mastoid was used. The technique employed multiple stages of masking enabling adjustments of the stimulation level and phase until the tones got canceled in the ipsilateral ear. In addition, the ear canal sound pressure was obtained for ipsil...
Source: Hearing Research - July 18, 2023 Category: Audiology Authors: Sudeep Surendran Stefan Stenfelt Source Type: research

Inter-aural separation during hearing by bilateral bone conduction stimulation
In this study, the prominence of cross-head transmission in BC hearing is addressed using the fact that ipsilateral cochlear excitation can be canceled by controlled bilateral BC stimulation. A cancellation experiment was conducted on twenty participants with normal hearing at thirteen third-octave frequencies between 250 and 4000 Hz. Both stationary and transient BC stimulation at the mastoid was used. The technique employed multiple stages of masking enabling adjustments of the stimulation level and phase until the tones got canceled in the ipsilateral ear. In addition, the ear canal sound pressure was obtained for ipsil...
Source: Hearing Research - July 18, 2023 Category: Audiology Authors: Sudeep Surendran Stefan Stenfelt Source Type: research

Inter-aural separation during hearing by bilateral bone conduction stimulation
In this study, the prominence of cross-head transmission in BC hearing is addressed using the fact that ipsilateral cochlear excitation can be canceled by controlled bilateral BC stimulation. A cancellation experiment was conducted on twenty participants with normal hearing at thirteen third-octave frequencies between 250 and 4000 Hz. Both stationary and transient BC stimulation at the mastoid was used. The technique employed multiple stages of masking enabling adjustments of the stimulation level and phase until the tones got canceled in the ipsilateral ear. In addition, the ear canal sound pressure was obtained for ipsil...
Source: Hearing Research - July 18, 2023 Category: Audiology Authors: Sudeep Surendran Stefan Stenfelt Source Type: research

Inter-aural separation during hearing by bilateral bone conduction stimulation
In this study, the prominence of cross-head transmission in BC hearing is addressed using the fact that ipsilateral cochlear excitation can be canceled by controlled bilateral BC stimulation. A cancellation experiment was conducted on twenty participants with normal hearing at thirteen third-octave frequencies between 250 and 4000 Hz. Both stationary and transient BC stimulation at the mastoid was used. The technique employed multiple stages of masking enabling adjustments of the stimulation level and phase until the tones got canceled in the ipsilateral ear. In addition, the ear canal sound pressure was obtained for ipsil...
Source: Hearing Research - July 18, 2023 Category: Audiology Authors: Sudeep Surendran Stefan Stenfelt Source Type: research

Inter-aural separation during hearing by bilateral bone conduction stimulation
In this study, the prominence of cross-head transmission in BC hearing is addressed using the fact that ipsilateral cochlear excitation can be canceled by controlled bilateral BC stimulation. A cancellation experiment was conducted on twenty participants with normal hearing at thirteen third-octave frequencies between 250 and 4000 Hz. Both stationary and transient BC stimulation at the mastoid was used. The technique employed multiple stages of masking enabling adjustments of the stimulation level and phase until the tones got canceled in the ipsilateral ear. In addition, the ear canal sound pressure was obtained for ipsil...
Source: Hearing Research - July 18, 2023 Category: Audiology Authors: Sudeep Surendran Stefan Stenfelt Source Type: research

Objective discrimination of bimodal speech using frequency following responses
Hear Res. 2023 Jul 9;437:108853. doi: 10.1016/j.heares.2023.108853. Online ahead of print.ABSTRACTBimodal hearing, in which a contralateral hearing aid is combined with a cochlear implant (CI), provides greater speech recognition benefits than using a CI alone. Factors predicting individual bimodal patient success are not fully understood. Previous studies have shown that bimodal benefits may be driven by a patient's ability to extract fundamental frequency (f0) and/or temporal fine structure cues (e.g., F1). Both of these features may be represented in frequency following responses (FFR) to bimodal speech. Thus, the goals...
Source: Hearing Research - July 13, 2023 Category: Audiology Authors: Can Xu Fan-Yin Cheng Sarah Medina Erica Eng Ren é Gifford Spencer Smith Source Type: research

Latent neural dynamics encode temporal context in speech
Hear Res. 2023 Jul 4;437:108838. doi: 10.1016/j.heares.2023.108838. Online ahead of print.ABSTRACTDirect neural recordings from human auditory cortex have demonstrated encoding for acoustic-phonetic features of consonants and vowels. Neural responses also encode distinct acoustic amplitude cues related to timing, such as those that occur at the onset of a sentence after a silent period or the onset of the vowel in each syllable. Here, we used a group reduced rank regression model to show that distributed cortical responses support a low-dimensional latent state representation of temporal context in speech. The timing cues ...
Source: Hearing Research - July 13, 2023 Category: Audiology Authors: Emily P Stephen Yuanning Li Sean Metzger Yulia Oganian Edward F Chang Source Type: research

Objective discrimination of bimodal speech using frequency following responses
Hear Res. 2023 Jul 9;437:108853. doi: 10.1016/j.heares.2023.108853. Online ahead of print.ABSTRACTBimodal hearing, in which a contralateral hearing aid is combined with a cochlear implant (CI), provides greater speech recognition benefits than using a CI alone. Factors predicting individual bimodal patient success are not fully understood. Previous studies have shown that bimodal benefits may be driven by a patient's ability to extract fundamental frequency (f0) and/or temporal fine structure cues (e.g., F1). Both of these features may be represented in frequency following responses (FFR) to bimodal speech. Thus, the goals...
Source: Hearing Research - July 13, 2023 Category: Audiology Authors: Can Xu Fan-Yin Cheng Sarah Medina Erica Eng Ren é Gifford Spencer Smith Source Type: research

Latent neural dynamics encode temporal context in speech
Hear Res. 2023 Jul 4;437:108838. doi: 10.1016/j.heares.2023.108838. Online ahead of print.ABSTRACTDirect neural recordings from human auditory cortex have demonstrated encoding for acoustic-phonetic features of consonants and vowels. Neural responses also encode distinct acoustic amplitude cues related to timing, such as those that occur at the onset of a sentence after a silent period or the onset of the vowel in each syllable. Here, we used a group reduced rank regression model to show that distributed cortical responses support a low-dimensional latent state representation of temporal context in speech. The timing cues ...
Source: Hearing Research - July 13, 2023 Category: Audiology Authors: Emily P Stephen Yuanning Li Sean Metzger Yulia Oganian Edward F Chang Source Type: research

Objective discrimination of bimodal speech using frequency following responses
Hear Res. 2023 Jul 9;437:108853. doi: 10.1016/j.heares.2023.108853. Online ahead of print.ABSTRACTBimodal hearing, in which a contralateral hearing aid is combined with a cochlear implant (CI), provides greater speech recognition benefits than using a CI alone. Factors predicting individual bimodal patient success are not fully understood. Previous studies have shown that bimodal benefits may be driven by a patient's ability to extract fundamental frequency (f0) and/or temporal fine structure cues (e.g., F1). Both of these features may be represented in frequency following responses (FFR) to bimodal speech. Thus, the goals...
Source: Hearing Research - July 13, 2023 Category: Audiology Authors: Can Xu Fan-Yin Cheng Sarah Medina Erica Eng Ren é Gifford Spencer Smith Source Type: research