Digital Commons Network^™

Trumpet Directivity From A Rotating Semicircular Array, Samuel D. Bellows, Joseph E. Avila, Timothy W. Leishman

Directivity

The directivity function of a played musical instrument describes the angular dependence of its acoustic radiation and diffraction about the instrument, musician, and musician’s chair. Directivity influences sound in rehearsal, performance, and recording environments and signals in audio systems. Because high-resolution, spherically comprehensive measurements of played musical instruments have been unavailable in the past, the authors have undertaken research to produce and share such data for studies of musical instruments, simulations of acoustical environments, optimizations of microphone placements, and other applications. The authors acquired the data from repeated chromatic scales produced by a trumpet played at mezzo-forte in an anechoic …

Gamelan Gong Directivity Dataset, Samuel D. Bellows, Dallin T. Harwood, Kent L. Gee, Micah R. Shepherd

Directivity

No abstract provided.

Intolerance Of Uncertainty, Sensory Processing, And Related Correlates In Autistic Children During The Covid-19 Pandemic, Mollie Bradley

Theses and Dissertations

The COVID-19 pandemic increased uncertainty and anxiety for most and was especially disruptive to autistic people and their families. Autistic children were particularly vulnerable due to their intolerance for increased uncertainty and disruption to their school and therapy support. This study aimed to investigate the effect that increased uncertainty had on autistic children, specifically their sensory behaviors and stress levels and on the stress levels of their primary caregivers. Parents and guardians of 47 autistic children completed an online survey consisting of questions investigating background and demographic information, their experiences during the first six months of the pandemic, information about …

A Comparative Study On The Expository Writing Abilities Of Kindergarten Students With And Without Developmental Language Disorder, Kristine Michelle Dayley Andrus

Theses and Dissertations

State standards require kindergarten students to produce expository writing, but little research has been done regarding their abilities in this area. This study describes expository writing samples of 47 typically developing (TD) kindergarteners and 43 kindergarteners with developmental language disorder (DLD). The Expository Language Measures (ELM) Flow Chart and the Systematic Analysis of Language Transcripts (SALT) software were used to detail the language complexity and text structure features the children in the sample produced. When comparing TD and DLD children's expository written samples, no significant differences in the language and text structure measures were found. It is important to continue …

The Impact Of Background Noise On The Communicative Experience Of People With Mild To Moderate Aphasia: A Qualitative Study, Riley Robertson Hegewald

Theses and Dissertations

This study examined how retelling stories with a variety different background noise conditions affected the communicative experiences of people with aphasia (PWA). Participants included 11 adults with mild to moderate aphasia and 11 age- and gender-matched controls. Participants participated in a semi-structured interview immediately following the experimental measure where they were asked open-ended questions regarding their experience retelling stories and how those experiences related to their everyday lives. Results revealed three themes related to how participants responded to communicating in noise: (a) cognitive reactions, (b) emotional reactions, and (c) social reactions. The findings suggest that PWA exert more effort when …

The Analysis Of Omission And Substitution Errors In Various Language Tasks In Bilingual Children, Macy Whiting

Theses and Dissertations

As the population of Spanish-English bilingual children in the United States steadily grows, the importance of accurately assessing and diagnosing developmental language disorder (DLD) has also grown. Understanding a child's underlying language learning system is critical in this process. Several studies have demonstrated the efficacy of nonword repetition (NWR) tasks in bilingual children across a wide range of development, however there is little information regarding guidelines for interpretation of NWR performance or analyzing error patterns. This study was conducted to address these gaps in the research. A sample of 26 Spanish-English bilingual school aged children (6;0-9;4) were administered English and …

Examining The Preliminary Validity Of A Dynamic Assessment Of Narrative Language In Mandarin Chinese, Lok Yee Sarah Cheung

Theses and Dissertations

The purpose of this thesis was to examine the preliminary validity of a newly developed dynamic assessment of narrative language in Mandarin Chinese. Two studies are reported in this thesis. Study 1 included 31 second grade participants and Study 2 included 43 first grade participants. All participants were enrolled in a Chinese immersion program in an elementary school in Utah. A dynamic assessment of narrative language was administered to each participant in Mandarin Chinese. A teacher rating was also included in Study 1. Results indicated that the dynamic assessment investigated in this thesis demonstrated some similar characteristics with other valid …

Comparing Relative And Absolute Reliability Of Short Versus Long Narrative Retells, Jenna Hollis

Theses and Dissertations

The purpose of the current study was to examine and compare relative and absolute reliability estimates between brief, linguistically compact narrative retells and longer, more linguistically diffuse narrative retells. The participants included 190 school-age children in firstsixth grade from Utah, Arizona, and Colorado. Participants completed two brief narrative retells using the Narrative Language Measures (NLM) Listening subtest of the CUBED assessment and one longer narrative retell using the wordless picture book Frog, Where Are You? (FWAY). These language samples were then analyzed for language productivity, complexity, and story grammar elements using the Systematic Analysis of Language Transcripts software program and …

The Effect Of Two Rate Change Approaches On Speech Movement Patterns, Noelle Marie Lewis

Theses and Dissertations

The current study examined the effect of different rate change approaches on speech movement patterns, including increasing and decreasing speaking rate volitionally, as well as with delayed auditory feedback (DAF). There were 10 participants, five male and five female, with a mean age of 25 years. All were typical speakers. Participants spoke the sentence “Don’t fight or pout over a toy car” under slow, fast and DAF speaking conditions. A total of 5 sensors were glued to each participant’s tongue, teeth, and lips. NDI Wave electromagnetic articulography recorded the articulatory movements from these sensors as the participants spoke. Metrics for …

Kemar Hats Head Orientation Directivity, Samuel D. Bellows, Timothy W. Leishman

Directivity

This directivity data set for a KEMAR head head-and-torso simulator (HATS) includes head orientations in 14 directions in 5° steps starting from 0° to 40° and then in 10° steps from 40° to 90°. The full spherical measurements followed at an a = 0.97 m radius with the mouth aperture at the spherical center. The sampling density and distribution followed the AES 5° dual-equiangular sampling standard, omitting the south pole (θ = 180°). Thus, each spherical directivity assessment included 36 polar-angle θ samples and 72 azimuthal-angle ϕ samples. The presented data include 22 1/3-octave bands, ranging from 80 Hz …

Effects Of Positive And Negative Emotion On Picture Naming For People With Mild To Moderate Aphasia: A Preliminary Investigation, Tyson G. Harmon, Courtney Nielsen, Corinne Loveridge, Camille Williams

Faculty Publications

Purpose: To investigate how emotional arousal and valence affect confrontational naming accuracy and response time in people with mild to moderate aphasia compared with adults without aphasia. We hypothesized that negative and positive emotions would facilitate naming for people with aphasia but lead to slower responses for adults with no aphasia.

Method: Eight participants with mild to moderate aphasia, 15 older adults, and 17 young adults completed a confrontational naming task across three conditions (positive, negative, neutral) in an ABA case series design. Immediately following each naming condition, participants self-reported their perceived arousal and pleasure. Accuracy and response time were …

The Influence Of Pause On Listeners' Perceptions In Speech Of People With Aphasia, Emily Wright

Theses and Dissertations

The purpose of this study was to examine how varying pause lengths in speech of people with aphasia (PWA) influences listeners' perceptions. The study specifically assesses listeners' perceptions of communicative effectiveness and speaker likability. Speech samples from six people with nonfluent or fluent aphasia were obtained from a previous study conducted by Harmon (2018). The speech samples were modified to create four sets of stimuli, including the original recordings, normalized within utterance pauses, normalized between utterance pauses, and normalized for both within and between utterance pauses. Forty listeners rated each of the speech samples based on the perceived communicative effectiveness …

Correlations Between Cognitive Pause Patterns And Listener Perceptions Of Communicative Effectiveness And Likeability For People With Aphasia, Heidi Raylene Mcconaghie

Theses and Dissertations

A prevalent feature of typical spontaneous speech are speech pauses. Longer speech pauses, known as cognitive pauses, occur in typical speech and are indicative of higher-level cognitive processes. Atypical cognitive pauses, however, are prevalent in the speech of people with aphasia consequent to their communication disorder. Research has shown that these atypical pauses may contribute to negative listener perceptions. This study aimed to determine the influence of atypical speech pause on listener perceptions of communicative effectiveness and speaker likeability. Specifically, this study evaluated the relationship between listener ratings of communicative effectiveness and likeability and acoustic measures of between-utterance pause duration, …

The Classification Accuracy Of A Dynamic Assessment Of Inferential Word Learning For School-Age Children With And Without Language Disorder, Britney Ann Newey

Theses and Dissertations

Purpose: This study examines the classification accuracy and interrater reliability of a dynamic assessment (DA) of inferential word learning designed to accurately identify kindergarten through sixth-grade students with and without language disorder. Method: The participants included 127 school-age children from a mountain west school district who were administered a DA of inferential word learning that entailed a pretest, a teaching phase, an examiner rating of the child's ability to infer word meaning (modifiability), and posttests. Results: Hierarchical logistic regression and receiver operator characteristic (ROC) analyses revealed that combining all posttests, the modifiability total, and the final examiner judgement scores from …

The Effects Of Distracting Background Audio On Speech Production, Camille Margaret Cowley

Theses and Dissertations

This study examined changes in speech production when distracting background audio is present. Forty typically speaking adults completed a repetitive sentence reading task in the presence of 5 different audio conditions (pink noise, movie dialogue, heated debate, classical music, and contemporary music) and a silent condition. Acoustic parameters measured during the study included vowel space area (VSA), vowel articulation index (VAI), formant transition extent, formant transition rate, and diphthong duration for /ɑɪ/ and /É‘ÊŠ/. It was hypothesized that there would be significant increases in vowel space area and vowel articulation index as well as an increase in formant transition measures …

The Development And Preliminary Evidence Of Validity And Reliability Of A Spanish Static And Dynamic Assessment Of Decoding, Kayla Brooke Ditty

Theses and Dissertations

The purpose of the current study was to develop and administer a Spanish static and dynamic assessment of decoding and other important reading measures. Using the best available resources regarding Spanish literacy acquisition and Spanish language development, a preliminary Spanish dynamic and static screener was developed. The resulting test was named the Spanish Dynamic Decoding Measure (S-DDM) and is a counterpart to the original DDM available in English. This test contains three subtests: decoding, phonemic awareness, and word identification. The S-DDM was administered to eight bilingual Spanish-English speaking students with varying levels of Spanish language ability and reading proficiency in …

Everyday Communication Challenges In Aphasia: Descriptions Of Experiences And Coping Strategies, Tyson G. Harmon

Faculty Publications

Background: Everyday communication often occurs in situations that pose high attentional and social demands. People with aphasia have reported perceiving greater challenge communicating in these situations, but more specific information about these challenges could help clinicians and researchers work toward more meaningful intervention outcomes and increased life participation.

Aims: To explore the everyday communication experiences of people with aphasia based on their own perspectives and to identify how they report coping with everyday communication challenges.

Method: Twenty-one participants with mild or moderate aphasia completed semi-structured interviews that immediately followed the experimental arm of a larger project. Interview questions solicited descriptions …

Aerodynamic Measurement Stability During Rabbit Versus Pig Benchtop Phonation, Megan Caroline Hoggan

Theses and Dissertations

Combination corticosteroid inhalers are the primary treatment option for long-term pulmonary disorders including asthma, persistent bronchitis, and chronic obstructive pulmonary disease. Common side effects of these medications are xerostomia in the mouth and throat, hoarseness, and soreness in the oropharynx. Research indicates that a large percentage of the inhaler particles are deposited onto laryngeal tissue, leaving an alteration of laryngeal mucosal properties. As the first stage in a long-term project, this thesis addresses the need for baseline phonatory data that will lay groundwork for quantifying inhaler-induced phonatory changes. Excised larynx research is a powerful tool for assessing aerodynamic alterations that …

Kinematic And Acoustic Adaptation To A Bite Block During Syllable Production, Allison Marie Barney

Theses and Dissertations

The purpose of the current study was to gain a better understanding of speech adaptation by examining kinematic and acoustic adaptation to bite block perturbation over time. Fifteen native American English speakers (7 female, 8 male) with no history of speech, language, or hearing deficits participated in the study. Custom bite blocks were created for speakers which created a 10mm interincisal gap when inserted. Speakers produced five repetitions of the sentence, I say ahraw /ərɑ/ (as part of a larger set) prior to bite block insertion, immediately following bite block insertion, 2-mintues post insertion, 4-minutes post insertion, 6-minutes post insertion, …

A Comparison Of Phonation Threshold Pressure And Phonation Threshold Flow Between Pig And Rabbit Benchtop-Mounted Larynges, Amber Christeen Prigmore

Theses and Dissertations

Animal models are used extensively in voice research to study aspects of phonation, including physiology, kinematics, structure, and histology. Animals such as dog, cow, pig, sheep, deer, monkey, ferret, and rabbit have been used in voice research, with pig being one of the most common models. It is thought that the pig larynx is highly similar to the human larynx and one of the best models used in animal translational research. As with any model, however, the pig larynx does have some limitations. Perhaps a limitation most important to the rationale of this investigation is that pigs are difficult animals …

Effects Of A Large Group Combined Narrative And Expository Language Intervention On Oral Language In Third Graders, Kylie Lynn Lee

Theses and Dissertations

The purpose of this study was to examine the effects of a combined narrative and expository language intervention on third graders' oral language. The participants included 96 third-grade students from two schools in the Mountain West region of the United States. In a quasi-experimental design, all third-grade students in one school (n = 46) were assigned to a treatment condition and all third-grade students in another school in the same school district (n = 50) were assigned to a control condition. Both treatment and control groups received large group oral narrative language intervention led by classroom teachers. The treatment group …

The Use Of Video-Based Instruction To Teach Life Skills To Individuals With Developmental Disabilities, Kori Paige Esplin

Theses and Dissertations

Individuals with developmental disabilities struggle to learn important life skills. This deficit impedes their ability to function in the community and live meaningful lives. Video prompting (VP) is an evidence-based practice that has been used to teach a wide variety of skills to individuals with disabilities. VP utilizes technology to create step-by-step videos to teach academic, social, vocational and other life skills This article extends the current literature on VP interventions to hygiene skills and investigates the efficacy, skill maintenance, social validity, and level of independence that can be achieved using VP to teach hygiene skills. Three participants with developmental …

Average Speech Directivity, Samuel D. Bellows, Claire M. Pincock, Jennifer K. Whiting, Timothy W. Leishman

Directivity

Speech directivity describes the angular dependence of acoustic radiation from a talker’s mouth and nostrils and diffraction about his or her body and chair (if seated). It is an essential physical aspect of communication affecting sounds and signals in acoustical environments, audio, and telecommunication systems. Because high-resolution, spherically comprehensive measurements of live, phonetically balanced speech have been unavailable in the past, the authors have undertaken research to produce and share such data for simulations of acoustical environments, optimizations of microphone placements, speech studies, and other applications. The measurements included three male and three female talkers who repeated phonetically balanced passages …

The Predictive Validity Of A Kindergarten Dynamic Assessment Of Language, Veronica White, Douglas Petersen

Journal of Undergraduate Research

Kindergarten students are often administered screening instruments designed to identify weaknesses in emergent literacy skills. Unfortunately, these screeners, which only measure what a student currently knows, cannot validly differentiate between students who have low scores because of limited exposure, language/dialectal differences, or a disability. A more valid approach to identifying kindergarten students for future reading difficulty is needed. Dynamic assessment is emerging as a valid alternative to traditional screening measures. The language subtest of the PEARL (Petersen & Spencer, 2016) uses a dynamic assessment approach where students are administered a pretest (a story retell), participate in language instruction on story …

Unseen, But In Plain Sight: Identifying Developmental Patterns Of Females With Symptoms Of Autism Spectrum Disorder, Rebecca Lundwall

Journal of Undergraduate Research

Evaluation of how well the academic objectives of the proposal were met I will document the academic objectives met in terms of posters, presentations and papers.

Interpreting Speech Perception In Children With Phonological Deficits: Evidence From Event Related Potentials (Erp), Camille Nuttall, Kathryn Cabbage

Journal of Undergraduate Research

Children with dyslexia and children with speech sound disorder exhibit differing issues in regard to their speech and language. Dyslexia is a difficulty decoding written language, such as with word recognition or spelling. Speech sound disorder is characterized by speech production errors. Although dyslexia and speech sound disorders are often co-morbid, each can occur singularly (Lewis et al, 2011). Although both disorders respond to expert intervention, the underlying deficits last a lifetime and may negatively affect quality of life. Early identification is paramount to preventing long-term negative outcomes. A better understanding of how these disorders are activating in the brain …

Emotional Inferencing In Children With Language Impairment, Allison Barney, Bonnie Brinton

Journal of Undergraduate Research

Children with language impairment (LI) present with “a significant impairment in the acquisition and use of language across modalities” (ASHA, 1993). LI is a prevalent disorder affecting 7% of kindergarteners (Tomblin et al, 1997). LI limits a child’s ability to acquire language, to establish relationships with others, and to succeed in school. In addition, children with LI experience a range of social problems including withdrawal, exclusion, and peer victimization (Fujiki & Brinton, 2017). Recent research has indicated that children with LI have particular difficulty with emotion understanding (Brinton & Fujiki, 2014; Spackman, Fujiki, & Brinton, 2006). That is, they struggle …

Dual Task Effects On Story Retell For Participants With Moderate, Mild, Or No Aphasia: Quantitative And Qualitative Findings, Tyson G. Harmon, Adam Jacks, Katarina L. Haley, Antoine Bailliard

Faculty Publications

Purpose: To determine dual task effects on content accuracy, delivery speed, and perceived effort during narrative discourse in people with moderate, mild, or no aphasia and to explore subjective reactions to retelling a story with a concurrent task.

Method: Two studies (one quantitative and one qualitative) were conducted. In study 1, participants with mild or moderate aphasia and neurotypical controls retold short stories in isolation and while simultaneously distinguishing between high and low tones. Story retell accuracy (speech productivity and efficiency), speed (speech rate, repetitions, and pauses), and perceived effort were measured and compared. In study 2, participants completed semi-structured …

Mismatch Negativity Event Related Potential Elicited By Speech Stimuli In Geriatric Patients, Dana Lynn Pierce

Theses and Dissertations

Hearing loss, as a result of old age, has been linked to a decline in speech perception despite the use of additional listening devices. Even though the relationship between hearing loss and decreased speech perception has been well established, research in this area has often focused on the behavioral aspects of language and not on the functionality of the brain itself. In the present study, the mismatch negativity, an event related potential, was examined in order to determine the differences in speech perception between young adult participants, geriatric normal hearing participants, and geriatric hearing-impaired participants. It was hypothesized that a …

Teaching Physical Education Skills To A Student With A Disability Through Video Modeling, Robin Huddleston

Theses and Dissertations

Video modeling (VM) is a video-based intervention (VBI) that has been implemented with individuals with disabilities to teach various life and educational skills. It is a tool that allows learners to watch a target skill modeled on a pre-recorded video. The learner is able to re-watch a new skill as many times as needed, and the teacher is given the flexibility needed to work with multiple students while providing individualized instruction. The participant in this study was a 13-year-old male with a traumatic brain injury (TBI) and intellectual disability (ID). The participant was enrolled in a life skills class at …