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Articles 1 - 7 of 7
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The Effects Of Musical Training On Perception And Neural Representation Of Temporal Fine Structure, Verleyne Andrews-Rodgers
The Effects Of Musical Training On Perception And Neural Representation Of Temporal Fine Structure, Verleyne Andrews-Rodgers
Dissertations, 2014-2019
One of the most common complaints of persons with sensorineural hearing loss is difficulty hearing in background noise. Temporal fine structure (TFS) is one of the factors that contributes to understanding speech in the presence of background noise. TFS refers to the periodic information in speech which helps us to identify which speech sound we are listening to. TFS is also negatively affected by hearing loss, as well as age. In a quest to discover how TFS processing and thus speech-in-noise understanding can be improved, this study examined the effects of musical training on behavioral and physiological measures of temporal …
The Effects Of Auditory And Visual Distracters On The Toleration Of Background Noise In Normal Hearing Listeners, Lauren Shastany
The Effects Of Auditory And Visual Distracters On The Toleration Of Background Noise In Normal Hearing Listeners, Lauren Shastany
Dissertations, 2014-2019
The primary objective of this study was to evaluate the effect of auditory and visual cognitive loads on the preferred background noise levels in normal-hearing listeners. This study investigated the preferable background noise levels (primary task) when normal hearing listeners were presented with auditory and/or visual cognitive distractions (secondary task). It was hypothesized that normal hearing listeners’ preferable background noise level would decrease in the presence of either distracter and that the synergistic effect of the two distracters would result in even lower preferable background noise level. Preferable background noise levels were measured on 24 normal-hearing listeners under four conditions. …
Ultrasonic Vocalizations In Eph/Ephrin Mutant Mice, Bryna Rickenbach-Cline
Ultrasonic Vocalizations In Eph/Ephrin Mutant Mice, Bryna Rickenbach-Cline
Dissertations, 2014-2019
Purpose: Murine mammals, more commonly known as mice, emit ultrasonic vocalizations or “yelps” to communicate. It has been found that adult mice use these vocalizations to communicate with each other, and infant mice utilize ultrasonic vocalizations to communicate with their mother. It is known that a relationship exists between hearing ability and vocalization (Bass-Ringdahl, 2010). This study aims to record yelps/ vocalizations of four strains of mouse pups to determine how the development of hearing relates to the vocalizations that are emitted. It is thought that mice with compromised genes that encode for signaling proteins that are essential to the …
The Acute Effects Of Gentamycin Ototoxicity On Bobwhite Quail Basilar Papilla And Auditory Brainstem Responses, Kristie Wilson
The Acute Effects Of Gentamycin Ototoxicity On Bobwhite Quail Basilar Papilla And Auditory Brainstem Responses, Kristie Wilson
Dissertations, 2014-2019
The present study aimed to investigate the effectiveness of a single dose of gentamycin in elevating Auditory Brainstem Response (ABR) thresholds and causing inner ear hair cell loss or damage. A total of twenty-two Bobwhite quail were used (n=7 control, n=15 experimental); experimental group quail were injected with a 200 mg/kg dose of gentamycin within 24 hours of hatch (P0). Three to four days post-hatch or injection the quail underwent ABR testing. Thresholds were measured using a 1,000 Hz, 2,000 Hz, and 4,000 Hz tone pip and a click beginning at 90 dB nominalSPL. Resulting waveforms were analyzed using MATLAB …
Quantifying Head Acceleration During Vestibular Rehabilitation, Anne Hogan
Quantifying Head Acceleration During Vestibular Rehabilitation, Anne Hogan
Dissertations, 2014-2019
Dizziness can often be a serious and confounding condition that ranges in severity from annoying to debilitating and affects many people. The most common and effective treatment for persistent dizziness is vestibular rehabilitation therapy, which falls into three categories: adaptation, sensory substitution, and habituation. While more is known about adaptation and sensory substitution, questions remain regarding the exact mechanisms of recovery for habituation. Precisely, the optimal stimulation to the vestibular system, as measured in intensity of head accelerations, is unknown for habituation treatment. In this dissertation are drafts of two manuscripts. The first explores the average intensity of linear and …
The Effects Of Various Modes Of Feedback On Preferred Ipod Listening Levels, Justine A. Mcdermott
The Effects Of Various Modes Of Feedback On Preferred Ipod Listening Levels, Justine A. Mcdermott
Dissertations, 2014-2019
The current study was conducted in an effort to promote safe listening habits of personal media player device users. Devices such as the iPod are known to have high output capacities well within the range of potentially hazardous sound levels, thus there is a concern that personal listening may pose a risk to hearing. Intuitive and real-time feedback representing the risk of hearing damage based on selected Preferred Listening Levels (PLLs) was provided to subjects they listened to an iPod. Objective: To provide listeners with tools to judge ‘what is too loud’ (and potentially damaging to hearing) so that they …
The Effect Of Early Hearing Loss On Bobwhites’ Responses To Pure Tones: A Possible Animal Model Of Prelingual Deafness, Bethany Leanne Magee
The Effect Of Early Hearing Loss On Bobwhites’ Responses To Pure Tones: A Possible Animal Model Of Prelingual Deafness, Bethany Leanne Magee
Dissertations, 2014-2019
This study aimed to look at the behavioral responses of Bobwhite quail to pure tone stimuli by measuring peep suppression. We also considered if a duration of early hearing loss would affect Bobwhite’s responsiveness to the tones. Bobwhites were tested individually at all different ages post hatch day. The pure tones were presented at several different intensity levels and peep suppression was calculated as a measure of responsiveness to the stimuli. Mock trials were conducted as a measure of control to determine the birds’ typical peep rate. Some of the Bobwhite quail were injected with gentamicin 0-1 post-hatch day in …