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Articles 1 - 8 of 8
Full-Text Articles in Speech and Hearing Science
The Directional Effect Of Target Position On Spatial Selective Auditory Attention, Heesung Park
The Directional Effect Of Target Position On Spatial Selective Auditory Attention, Heesung Park
Dissertations, 2020-current
Spatial selective auditory attention plays a crucial role in listening in a mixture of competing speech sounds. Previous neuroimaging studies have reported alpha band neural activity modulated by auditory attention, along with the alpha lateralization corresponding to attentional focus. A greater cortical representation of the attended speech envelope compared to the ignored speech envelope was also found, a phenomenon known as 'neural speech tracking’. However, little is known about the neural activities when attentional focus is directed on speech sounds from behind the listener, even though understanding speech from behind is a common and essential aspect of daily life. The …
Age-Related Decline In Neural Synchrony And The Ffr, Haley Szabo
Age-Related Decline In Neural Synchrony And The Ffr, Haley Szabo
Dissertations, 2020-current
It is a known phenomenon that speech understanding in background noise declines with advancing age. Although there is ample evidence of behavioral measures declining with age, there is less physiologic evidence. This study hypothesizes that the FFR will be degraded with advancing age, consistent with poorer phase locking. This is hypothesized to be present even in people with audiograms within normal limits. A second hypothesis is that middle-aged adults will have degraded neural representation as frequency increases, compared to a younger normal hearing group which will have better high frequency neural representation than the middle-aged group. Subjects were divided into …
The Relationship Between Quality Of Life Outcomes And Social Hearing For Cochlear Implant Recipients Using The Nciq And Pipsl, Bonnie A. Purtill
The Relationship Between Quality Of Life Outcomes And Social Hearing For Cochlear Implant Recipients Using The Nciq And Pipsl, Bonnie A. Purtill
Dissertations, 2020-current
Unmanaged hearing loss can have profound cognitive, social, and emotional impacts on a person’s life. Cochlear implants improve functional skills such as auditory detection and speech discrimination, and have also been shown to improve quality of life. Health related quality of life (HRQoL) measures are a great tool to assess mental, physical, and social changes after cochlear implantation. While previous research has established improvement in HRQoL after cochlear implantation, there remains a lack of research evaluating long-term effects of cochlear implants for post-lingually and bilaterally deafened adults. Using a disease specific HRQoL questionnaire—Nijmegen Cochlear Implant Questionnaire (NCIQ) and a social …
Temporal Modulation Transfer Functions Of Amplitude-Modulated Cervical Vestibular Evoked Myogenic Potentials In Young Adults, Kerri Lawlor
Temporal Modulation Transfer Functions Of Amplitude-Modulated Cervical Vestibular Evoked Myogenic Potentials In Young Adults, Kerri Lawlor
Dissertations, 2020-current
Cervical vestibular evoked myogenic potentials (cVEMPs) are widely used to evaluate saccular function in clinical and research applications. Typically, transient tonebursts are used to elicit cVEMPs. In this study, we used bone-conducted amplitude-modulated (AM) tones to elicit AMcVEMPs. This new approach allows the examination of phase-locked vestibular responses across a range of modulation frequencies. Currently, cVEMP temporal modulation transfer functions (TMTFs) are not well defined. The purposes of the present study were 1) to characterize the AMcVEMP TMTF in young, healthy individuals, 2) to compare AMcVEMP TMTFs across different analysis approaches, and 3) to determine the upper frequency limit of …
Assessing Word Recognition Through Head Turn Preference In Infants With Chronic Otitis Media, Allison E. Schmidt
Assessing Word Recognition Through Head Turn Preference In Infants With Chronic Otitis Media, Allison E. Schmidt
Dissertations, 2020-current
Previous studies across a variety of different languages have shown that eleven-month-olds tested via the head-turn preference paradigm show a preference for familiar words over unfamiliar words, as demonstrated by longer look times. This study examined the effect of chronic otitis media on the preference for familiar over unfamiliar words. Nine eleven-month-old children (mean age 342 days, SD = 9.61) with chronic ear infections, defined as three or more diagnoses before the test date, were tested using wordlists adapted from a study performed by Vihman et al. (2004). Children with a history of chronic otitis media did not show a …
Measuring Listening Effort Using Physiological, Behavioral And Subjective Methods In Normal Hearing Subjects: Effect Of Signal To Noise Ratio And Presentation Level, Lakshmi Magudilu Srishyla Kumar
Measuring Listening Effort Using Physiological, Behavioral And Subjective Methods In Normal Hearing Subjects: Effect Of Signal To Noise Ratio And Presentation Level, Lakshmi Magudilu Srishyla Kumar
Dissertations, 2020-current
The main objective of the study is to compare the effectiveness of pupillometry, working memory and subjective rating scale —the physiological, behavioral, and subjective measures of listening effort— at different signal to noise ratios (SNR) and presentation levels: when administered together. Eleven young normal hearing individuals with mean age of 21.7 years (SD=1.9 years) participated in the study. The HINT sentences were used for speech perception in noise task. The listening effort was quantified using peak pupil dilation, working memory, working memory difference, subjective rating of listening and recall effort. The rating of perceived performance, frustration level and …
Induction Of Nocebo Effects By Verbal Suggestions During The Caloric Test, Abbey Weist
Induction Of Nocebo Effects By Verbal Suggestions During The Caloric Test, Abbey Weist
Dissertations, 2020-current
The caloric test is the most frequently performed vestibular diagnostic test and is considered the “gold-standard” for the assessment of the peripheral vestibular system. Using a warm or cool stimulus, the caloric test alters the temperature gradient in the vestibular system resulting in nausea and dizziness. The nocebo effect is a phenomenon that can occur when negative expectations result in negative effects. No study has examined whether expectations of nausea and dizziness during the caloric test enhance the experience of unwanted symptoms. The purpose of this investigation was to determine whether a nocebo response can be elicited during the caloric …
Music And Speech Perception In Pre-Lingually Deafened Young Listeners With Cochlear Implants: A Preliminary Study Using Sung Speech, Harley J. Wheeler
Music And Speech Perception In Pre-Lingually Deafened Young Listeners With Cochlear Implants: A Preliminary Study Using Sung Speech, Harley J. Wheeler
Dissertations, 2020-current
Timbre and pitch cues, though definitionally and physically distinct characteristics of sound, are attributes of all sound signals. A body of literature has shown that alteration of one characteristic can influence the perception of the other; e.g., speech spoken with an atypical contour of pitch can influence a listener's accuracy in identifying the words spoken; conversely, whether a melodic contour is presented via a MIDI piano representation or as sung speech can influence the accuracy of identification of the pitches' contour. Trends for these interactions have been documented for normal hearing children and adults, as well as postlingually deafened adult …