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Articles 1 - 7 of 7
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A Comparison Of Vibrotactile And Air Puff Stimulation For Inducing Swallowing, Kathryn Diane White
A Comparison Of Vibrotactile And Air Puff Stimulation For Inducing Swallowing, Kathryn Diane White
Dissertations, 2014-2019
The purpose of this study was to evaluate the effectiveness of two types of non-invasive, sensory stimulation on increasing the rate of swallowing and for inducing cortical activity associated with swallowing. The types of stimulation investigated were vibrotactile stimulation to the external throat area surrounding the laryngeal tissues and oral air puff stimulation to the anterior faucial pillars. A functional near infrared spectroscopy (fNIRS) system measured relative changes in the concentration of oxygenated hemoglobin (HbO) in cortical sensorimotor regions as an indirect measure of brain activity. The experiment included 16 healthy adult participants between the ages of 28 and 60 …
Normal And Mutant Murine Auditory Brainstem Responses (Abrs), Kristin Shearer
Normal And Mutant Murine Auditory Brainstem Responses (Abrs), Kristin Shearer
Dissertations, 2014-2019
Spatial organization and topographic maps begin in the periphery and are preserved throughout the central auditory system. The Eph and ephrin family of signaling proteins is involved in the patterning and arrangement of auditory afferents which code information about frequency, intensity, and time. The present study utilizes the ABR as a physiological measure of the electrical potentials occurring in the brainstem following acoustic stimulation. We recorded this measure following click and tone pip stimulation in ephrin-B3 and EphA4 deficient mice at 2-3 months of age and compared them to wild type controls. Significant findings included elevated auditory thresholds, prolonged latency …
Do Different Methods Of Hearing Aid Information Delivery Influence Knowledge Acquisition?, Lindsey Ann Parr
Do Different Methods Of Hearing Aid Information Delivery Influence Knowledge Acquisition?, Lindsey Ann Parr
Dissertations, 2014-2019
The main purposes of this study were to examine whether or not there was a difference in knowledge acquisition as a function of training method (these included: face-to-face session, DVD, and pamphlet); to determine which information included in hearing aid orientation was commonly known prior to training and which showed the most learning after training; and to evaluate which training method is the most popular among participants. A sample of 65 young college students with no prior hearing aid experience completed a pre- and post-multiple-choice test of hearing aid knowledge and gave their opinion of the hearing aid orientation immediately …
The Effects Of Age On The Mismatch Negativity Response To Differences In Place Of Articulation, Meredith Robotti
The Effects Of Age On The Mismatch Negativity Response To Differences In Place Of Articulation, Meredith Robotti
Dissertations, 2014-2019
The Mismatch negativity (MMN) response measures the auditory system’s response to change in stimulus. This measurement can be used to identify if the auditory system can physiologically discriminate two speech sounds. To date, studies that have recorded MMNs in response to differing place of articulation show conflicting data. One possibility for the conflicting results is due to the lack of carefully controlled stimuli. The purpose of this study was to evaluate the differences in amplitude and latency between adult and infant MMN responses when manipulating place of articulation for speech. Additionally, this study sought to determine if all adults showed …
Perceived Occlusion And Comfort In Receiver-In-The-Ear Hearing Aids, Sara A. Conrad
Perceived Occlusion And Comfort In Receiver-In-The-Ear Hearing Aids, Sara A. Conrad
Dissertations, 2014-2019
Purpose: In this study participants rated self-perceived occlusion and physical comfort for receiver-in-the-ear (RITE) hearing aids with different sizes of standard domes. Perceived occlusion was rated across listening and own voice conditions. Method: Twenty-one older adults with hearing impairment were fitted with bilateral RITE hearing aids and tested with three dome size conditions: open, plus, and power domes, and one control condition: the participants' own aids. Participants ranked self-perceived occlusion across the dome size conditions as well as across listening and own voice conditions, and also ranked level of physical comfort across dome sizes. Results: Self-perceived occlusion increased as dome …
Headturn Preference Of 10-Month Infants For Familiar And Unfamiliar Signs, Steven Thomas Kulsar
Headturn Preference Of 10-Month Infants For Familiar And Unfamiliar Signs, Steven Thomas Kulsar
Dissertations, 2014-2019
Most deaf babies born in the United States are born into hearing families and show a developmental lag in spoken language acquisition, reading, writing, and social development when compared to deaf babies of deaf parents or hearing babies of hearing parents, due to limited language access. A modified headturn paradigm has been devised to assess infant preference to various familiar and unfamiliar ASL stimuli, to determine parallels between auditory-spoken and visual-spatial languages. If visual perception of first signs parallels auditory perception of first words, we would expect infants exposed to ASL as their native language to show a preference for …
Investigating Motor Training In People Who Stutter Using Fnirs, Kristen Michelle Johnson
Investigating Motor Training In People Who Stutter Using Fnirs, Kristen Michelle Johnson
Masters Theses, 2010-2019
This pilot study investigated motor learning and neuroplasticity in persons who do and do not stutter before and after participation in a phonation onset training protocol. Outcomes included phonation onset time and percent change in oxygenation level of hemoglobin using fNIRS in prescribed brain areas as a result of training. The authors hypothesized that people who stutter (PWS) would 1) exhibit a breakdown in auditory perception to motor production interactions, 2) demonstrate a difference in the way in which they perceive and learn motor information compared to someone who does not stutter (nPWS), and 3) exhibit reduced brain activity correlations …