Speech and Hearing Science Commons^™

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), …

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 …

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) …

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 …

Effectiveness Of Proloquo2goTm In Enhancing Communication In Children With Autism During Aba Therapy, Taylor Eastin Krcek

Doctoral Dissertations

Autism is a bio-neurological developmental disorder presenting in early childhood that has a profound effect on an individual's ability to communicate. The iPad® with the Proloquo2Go^TM app is a multilingual Augmentative and Alternative Communication (AAC) solution designed to assist people who have difficulty speaking or cannot speak at all. This study examines the effectiveness of the Proloquo2Go^TM app delivered via iPad® to enhance the tacting, manding, and verbal completion repertoires of children with autism. Participants included five children between the ages of three and four years old diagnosed with an autism spectrum disorder (ASD) and with low to …

Central Auditory Processing And The Link To Reading Ability In Adults, Lisa M. Brody

Honors Scholar Theses

What makes someone a good reader? What makes someone a poor reader? The root biological marker of reading ability has yet to be determined. Many scientists agree that phonological awareness, the understanding of speech sounds, and phonological decoding are key components of reading ability (Melby-Lervag, Lyster, & Hulme, 2012). In addition to this, new research suggests that the auditory system, specifically the timing of auditory processing in the brain, provides a crucial platform that supports the development of reading ability (Banai et al., 2009). This thesis provides empirical data to support the link between reading skill …

The Discrimination Of Cv Synthetic Syllables As A Function Of Phonetic Training And Noise Conditions, Ryan Mulligan, Antony Joseph

AuD Capstone Projects - Communication Sciences and Disorders

The aim of this preliminary study was to examine the effect of two signal-to-noise ratios (SNR) and formal phonetic training on auditory discrimination of just noticeable differences (JND) among consonant vowel (CV) synthetic syllables. Fine-grain auditory discrimination abilities of 16 young-adults with undergraduate studies that included phonetic training and 17 young-adults with no phonetic training were assessed using a same/different discrimination task in a +3 SNR and a +13 SNR listening condition. Subjects listened to pairs of CV contrasts presented in rapid succession and indicated whether the contrastive syllables were the same or different. Results revealed a significant difference …

Bridging Theories Of Phonological Awareness For Deaf And Hard Of Hearing Children: Perspectives From Verbotonal Specialists In The United States, Jazmin Rambeau

Honors Theses

Approaching literacy instruction for children who are deaf and hard of hearing is one of the most significant challenges within global education because there are various evidence-based theories in the literature as to why children who are deaf and hard of hearing often manifest impaired reading abilities compared to children with normal hearing, and how they may acquire literacy skills differently. This study aims to identify agreements within the literature regarding the role of phonological awareness in literacy acquisition for children who are deaf and hard of hearing, and how tools such as the Verbotonal method of auditory therapy may …

A Call For Hearing Loss Prevention Programs In College Music Education Programs, Jason Taurins

Honors Theses

Music educators, ensemble conductors, and students who participate in musical ensembles are exposed to sound pressure levels which exceed the criteria for NIOSH. As such, this population should be enrolled in hearing loss prevention programs. Ensemble directors (many music educators fall into this category) have a direct role in influencing the sound pressure levels produced in rehearsals. Music educators have a role in influencing the knowledge, skills, attitudes, and behaviors of their students. Because of the health risks of noise exposure, and the role music educators (and ensemble directors in general) have in influencing their students, hearing loss prevention should …

Students’ Perceptions Of Female Faculty Members Based On Vocal Characteristics, Molly M. Kitchell, Cesar E. Ruiz Slp.D., Ccc/Slp., Bcs-S

Undergraduate Research

This study examines the relationship between the acoustic properties of female faculty members’ voices and the perception of the female faculty members age and personality characteristics by undergraduate students. A standardized acoustic analysis using the Multidimensional Voice Program (MDVP) and the RealPitch program was performed to determine the participating faculty members’ fundamental frequency (habitual and conversation), vocal jitter, and vocal shimmer. Faculty members were then recorded reading a brief preselected passage. Student participants listened to the recorded audio samples and completed a survey regarding the faculty members’ ages and personality characteristics. A Pearson product-moment correlation (Pearson r) analysis completed in …

Development Of Rhyming Tasks In Preschool Aged Children With Hearing Loss, Kaylie Mcnally, Mary Katherine Connelly

Undergraduate Research

Numerous studies have shown that children with hearing loss are at significant disadvantage in regards to skills required for reading. Rhyming has been shown to be a strong indicator of early literacy development. This study examines the relationship between rhyming skills to

1) the degree of hearing loss , and 2) listening device type. Results showed no significant difference in rhyming skills in relation to either condition.

Stakeholder Perspectives Of The Effectiveness Of Augmentative And Alternative Communication Techniques In Children With Autism, Daria Constantinescu

Theses and Dissertations

The purpose of this study was to utilize focus groups and individual interviews to investigate the effectiveness and efficiency of augmentative and alternative (AAC) techniques in facilitating language in children with Autism Spectrum Disorder (ASD) as expressed by the opinions and attitudes of stakeholders involved in the process. ASD is a disorder that affects an individual's social and communication skills that usually surfaces within a child's first three years of life. There have been numerous studies conducted comparing different types of AAC intervention systems, but there is little information on stakeholders' opinions. The current study utilized one focus group interview …

Anticipatory Coarticulation And Stability Of Speech In Typically Fluent Speakers And People Who Stutter Across The Lifespan: An Ultrasound Study, Alissa Joy Belmont

USF Tampa Graduate Theses and Dissertations

This study uses ultrasound to image onset velar stop consonant articulation in words. By examining tongue body placement, the extent of velar closure variation across vowel contexts provides for the measurement of anticipatory coarticulation while productions within the same vowel context provide measurement of extent of token-to-token variation. Articulate Assistant Advanced 2.0 software was used to semi-automatically generate midsagittal tongue contours at the initial point of maximum velar closure and was used to fit each contour to a curved spline. Patterns of lingual coarticulation and measures of speech motor stability, based on curve-to-curve distance (Zharkova, Hewlett, & Hardcastle, 2011), are …

Noise Induced Hearing Loss: The Impact Of Acoustic Trauma On The Ear, Aviva Levihaiem

The Science Journal of the Lander College of Arts and Sciences

Noise-induced hearing loss (NIHL) is a pervasive disability that affects millions of people across the world. It is characterized by a decrease in hearing sensitivity to sounds that fall between 3000–6000 Hz(known as the “notch”). NIHL is caused by either a sudden acoustic trauma or long-term exposure to noise levels above 85 dB. The noise exposure induces overproduction of free radicals within the cells of the cochlea, overpowering of the ear’s antioxidant defense systems. The free radicals then destroy cell membranes and hair cell nuclei, causing necrosis and apoptosis, leading to hair cell death. This upsets the mechanical structure and …

Online Communities For People Who Stutter: An Ethnographic Study Of A Facebook Social Networking Support Group, Erik X. Raj

Wayne State University Dissertations

The purpose of this study was to explore the experiences of people who stutter who digitally connect and share with other people who stutter on a social networking site, specifically Facebook. This study used a qualitative, ethnographic approach to gain insight from members of a private Facebook group for people who stutter and to collect their opinions as to whether an online community was a beneficial means of obtaining psychosocial support from other people who stutter. The primary investigator collected textual data and artifacts from 3 months of Facebook group postings, semi-structured interviews with 7 of the Facebook group members, …

A Comparative Assessment Of Electrophysiological And Behavioral Performance In Individuals With Aphasia Responding To Spoken And Written Sentence Length Commands, Sha-Renae Alexander

Open Access Theses & Dissertations

The aim of this study is to investigate whether deficits in processing affect auditory and reading comprehension in the same manner. This study compared the behavioral and electrophysiologic performance of four individuals with aphasia and four participants with no brain damage responding to spoken and written sentence length commands using a modified version of the Revised Token Test (McNeil & Prescott, 1978). Electrophysiological responses were recorded from the scalp using event related potentials (ERP). The latency and amplitude of the N400 ERP component were measured and analyzed. Behavioral reaction times and correct responses were collected and examined. Performance differences between …

Event Related Potentials In A Two Stimuli Auditory Oddball Task In Concussed College Athletes: A Linguistic Component Replication Study, Christopher Anthony Roosmalen

Open Access Theses & Dissertations

Concussions affect an estimated 1.6 to 3.8 million individuals annually and can result in persistent symptoms and cognitive impairments in attention and memory. Concussions are a rising health concern especially in concussion management. Event Related Potentials (ERP) may more accurately assess cognitive recovery making better return to play decisions. In 2013, Sanchez found no significant difference between concussed athletes and non-concussed individuals in the in amplitude of the P300 ERP component using an auditory oddball task consisting of 2 different consonant, vowel (CV) syllables. Because participants were instructed to maintain a mental and verbal count of the target stimuli, a …

The Effects Of Baby Sign Training On Child Development, Bethany Iris Urquidi

Open Access Theses & Dissertations

Introduction: Baby sign has gained the attention of many researchers and parents. Relatively little is known about the use of baby sign and the impact it has on the development of children. As the use of baby sign increases in popularity, research studies have had limited and inconsistent results regarding its influence. Purpose: The purpose of this study is to measure the effects of baby sign training on the overall development of normally hearing children while improving on the limitations of current studies (between group study). Methods: Participants in the study included 22 children, ages 6 months to 2 years; …

Caps: Implications For Collaboration Between Teachers And Speech-Language Therapists Working In Schools, Anna-Marie Wium, Brenda Louw

ETSU Faculty Works

This critical review addresses the implications of the Curriculum and Assessment Plan Statement (CAPS) for collaboration between teachers and speech-language therapists (SLTs) in schools. A historical perspective on changes in the roles and responsibilities of SLTs is provided, reflecting a shift from supporting the child to supporting the teacher. Based on the role of SLTs and audiologists in schools, an innovative approach to the support of teachers is conceptualized. The curriculum content and methods support learners who experience challenges and barriers to learning in main stream classrooms. The implementation of the curriculum necessitates close collaboration between teachers and SLTs in …

Interpreter-Assisted Speech-Language Intervention In Poland: Needs, Possibilities And Prospects (Współpraca Polskiego Logopedy Z Tłumaczem – Potrzeby, Możliwości I Perspektywy), Katarzyna Gaweł, Henriette Langdon, Katarzyna Węsierska

Faculty Publications

Due to the constantly evolving global demographic situation, speech-language therapists (SLTs, also: speech-language pathologists – SLPs) have to deal with an increasing workload of bilingual/multilingual clients. This article presents results of a survey conducted among Polish SLTs aimed at investigating their views with regards to the possibility of collaboration with an interpreter during therapeutic intervention. The original version of the questionnaire (Gaweł & Węsierska, 2014) used in this survey was filled out by 206 respondents from different areas across Poland. The following issues were addressed in the study: the SLTs’ views on the incidence of bilingualism in Poland, their self-evaluation …