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- Audiology (2)
- Mice (2)
- Pre-pulse inhibition (2)
- Sound localization (2)
- Acoustic startle response (1)
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- Age (1)
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- Binaural (1)
- Binaural listening (1)
- CSD (1)
- Cortical activation (1)
- Eph/ephrin mutation (1)
- FNIRS (1)
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- Interaural phase difference (1)
- Monaural (1)
- Phase-locking (1)
- Speech-in-noise (1)
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- Voice onset coordination (1)
- Voice physiology (1)
Articles 1 - 5 of 5
Full-Text Articles in Speech and Hearing Science
Pre-Pulse Inhibition Assessment Of Sound Localization In Mice, Kathryn C. Brooks
Pre-Pulse Inhibition Assessment Of Sound Localization In Mice, Kathryn C. Brooks
Senior Honors Projects, 2010-2019
The purpose of my Honors Research Project was to assist Dr. Megan
Klingenberg in completing part of the research in her final dissertation project. Dr.
Klingenberg’s project was based off of a study done by Allen and Ison in 2010.
This study tested the auditory spatial acuity of mice using pre-pulse inhibition of
the startle reflex as the response for detecting the sound stimulus. The goal of
Dr. Klingenberg’s AuD project was “to explore the methodological, functional, and
genetic influences on sound localization using pre-pulse inhibition of the acoustic
startle response in mice”. Dr. Klingenberg’s project was broken into three …
Effects Of Training And Lung Volume Levels On Voice Onset Control And Cortical Activation In Singers, Nicholas A. Barone
Effects Of Training And Lung Volume Levels On Voice Onset Control And Cortical Activation In Singers, Nicholas A. Barone
Dissertations, 2014-2019
Singers need to counteract respiratory elastic recoil at high and low lung volume levels (LVLs) to maintain consistent airflow and pressure while singing. Professionally trained singers modify their vocal and respiratory systems creating a physiologically stable and perceptually pleasing voice quality at varying LVLs. In manuscript 1, we compared non-singers and singers on the initiation of a voiceless plosive followed by a vowel at low (30% vital capacity, VC), intermediate (50%VC), and high (80%VC) LVLs. In manuscript 2, we examined how vocal students (singers in manuscript 1) learn to control their voice onset at varying LVLs before and after a …
Examining Monaural And Binaural Measures Of Phase-Locking As A Function Of Age, Larissa M. Heckler
Examining Monaural And Binaural Measures Of Phase-Locking As A Function Of Age, Larissa M. Heckler
Dissertations, 2014-2019
Understanding speech in the presence of background noise is a common complaint of middle-aged and older listeners with clinically normal audiograms. There is great interest in understanding how age-related changes in auditory physiology make it harder for older adults to understand speech in difficult listening situations, compared to young listeners. It was recently reported that middle-aged and older normal-hearing listeners showed frequency-dependent, age-related declines in the behavioral and physiological detection of interaural phase differences (Grose & Mamo, 2010; Ross et al, 2007). There is also evidence of an age-related, frequency-dependent decline in the frequency-following response (FFR) (Clinard et al., 2010), …
Binaural Listening In Young And Middle-Aged Adults: Interaural Phase Differences And Speech-In-Noise Measures, Caitlin Cotter
Binaural Listening In Young And Middle-Aged Adults: Interaural Phase Differences And Speech-In-Noise Measures, Caitlin Cotter
Dissertations, 2014-2019
Difficulty understanding speech in the presence of noise is a common complaint of middle-aged and older adults with and without hearing loss. There is an incomplete picture of what contributes to difficulties understanding speech-in-noise in adults who have normal audiograms. As humans we listen binaurally, so declines in binaural processing may contribute to speech-in-noise difficulties. We examined the effects of age on the upper frequency limit of interaural phase difference (IPD) detection and IPD detection at fixed frequencies. We also examined a speech-in-noise measure of spatial separation across young and middle-aged, normal-hearing individuals.
Participants were young (n=12) and middle-aged (n=8) …
Pre-Pulse Inhibition Assessment Of Sound Localization In Mice: Methodological, Functional, And Genetic Considerations, Megan Klingenberg
Pre-Pulse Inhibition Assessment Of Sound Localization In Mice: Methodological, Functional, And Genetic Considerations, Megan Klingenberg
Dissertations, 2014-2019
Sound localization is an important aspect of normal hearing. The Eph/ephin family of signaling proteins, studied here, is known to guide the formation of central auditory connections in early development, particularly topographic inputs from the lateral superior olive (LSO) to the inferior colliculus (IC). Processing in the LSO and its influences on the IC are known to be heavily involved in sound localization tasks. One way to study sound localization in mice is through pre-pulse inhibition (PPI). PPI is the phenomenon by which a weak prestimulus inhibits the response to a subsequent startle stimulus. In studying sound localization, the prestimulus …