Digital Commons Network^™

Comparison Of Knowledge And Diagnostic Practices Relating To Autism Spectrum Disorder Between The United States And Mexico, Maria F. Valdez

Theses and Dissertations

The present study examined and compared the knowledge, screening, and diagnostic practices of health care practitioners from Mexico and the United States of America (U.S.) as they relate to autism spectrum disorder (ASD). The participants included 56 healthcare professionals from U.S. and 16 healthcare professionals from Mexico. Data was collected via an online survey. Overall, participants achieved a mean knowledge accuracy of 0.58 (SD = 0.13). The mean accuracy of knowledge in Mexico was 0.52 (SD = 0.13) and the mean accuracy of knowledge in the U.S. was 0.60 (SD = 0.13). Location, years of experience, patient contact, and comfort …

Early Educator Awareness Of Autism Spectrum Disorder In Preschool Hispanic Populations, Karla Cecilia Vidaurri

Theses and Dissertations

Christensen et al. (2016) highlights how "there are disparities by race/ethnicity in estimated ASD prevalence, particularly for Hispanic children, as well as disparities in the age of earliest comprehensive evaluation and presence of a previous ASD diagnosis or classification, suggesting that access to treatment and services might be lacking or delayed for some children" With an increase in autism prevalence and Hispanic population, there's a crucial demand for effective servicing and referrals for early identification of Autism.

The aim of this study was to analyze how prepared early educators are in identifying children that fall under the category of autism …

Aac Device Use In School-Aged Special Education Students, Vanessa Medina

Theses and Dissertations

This investigation analyzes how often AAC users typically utilize their devices throughout their day in their school setting. A survey method was implemented where elementary school educators were asked to report on their special education students use of their device during their school day. To identify special education educators' perceptions regarding the use of AAC devices in the public-school system, special education educators in the public-school system were contacted via email to conduct a survey in regard to current practice in their school setting regarding AAC use.

A letter of consent was obtained from the University of Texas Rio Grande …

Speech-Language Pathologist's Perspectives On The Efficacy Of Bilingual Education Programs In South Texas Public Schools For English As A Second Language Learners, Alexandra Rosas

Theses and Dissertations

Current research in regard to the assessment and treatment of ESLs is limited. Other problems found within the school setting, is that fact that SLPs have very limited resources and large caseloads. Hence, the fact that previous studies have found that SLPS working the school setting do not feel competent in serving ESL students.

The aim of this study is to investigate the efficacy of bilingual programs and explore the factors that impact English as a second language learners (ESLs), in public schools across the Rio Grande Valley. School based speech-language pathologists were surveyed for information concerning their perceptions and …

The Effects Of Dance Therapy On Voice In Patients With Parkinson's Disease In A Multicultural Population, Ivon N. Ramirez

Theses and Dissertations

Current literature suggests that dance therapy in individuals with Parkinson’s disease shows noticeable improvement in motor functions, for example gait and balance improvement. Additionally, patients with Parkinson’s disease who participate in dance therapy may perceive positive benefits on their quality of life. Therefore, it is believed that increases in core support and improvements in posture, as a result of dance therapy, will have effects on the voice in patients with PD.

This thesis pulls from literature supporting treatment approaches in the field of speech-language pathology for voice patients with Parkinson’s disease. The aim of this study was to evaluate the …

Increasing Awareness Of Autism Spectrum Disorders In Law Enforcement In Hispanic Communities, Annette M. Cano

Theses and Dissertations

The aim of the present study was to study autism awareness amongst law enforcement officers (LEO) and first responders (FR) serving the Rio Grande Valley (RGV). A 17-question survey was conducted to collect demographic data, knowledge, and level of training that officers and responders have when serving individuals with Autism Spectrum Disorder (ASD).

Transitioning Adults From A Tube-Feeding To An Oral Feeding In Long-Term Care Facilities, Patricia D. Mejorado

Theses and Dissertations

The objective of this investigation is to gain information regarding the transition of adults from a tube feeding to an oral feeding in long-term care facilities. Twelve surveys were administered to the speech language pathologist population from the UTRGV and UTPA communication sciences and disorders alumni via email invitation. The survey consisted of questions regarding: years practiced in long-term care facilities, interdisciplinary collaboration, protocol and/or algorithms for transitioning patients from a tube feeding to an oral feeding, documentation programs, access to meal intakes, the SLP’s role in the transition to oral feedings, and areas of concerns regarding the transition from …

The Role Of The Speech-Language Pathologist When Working With Clients Who Are Transgender: A Guide Of Gender Identity And Cultural Competency, Brett Welch

Theses and Dissertations

It is within the scope of practice of a speech-language pathologist to work with a client who is transgender for voice. However, regardless of the setting, a speech-language pathologist is likely to encounter a person who is transgender on their caseload. The American Speech-Language-Hearing Association mandates that all of its members be culturally competent when working with clients from different cultural backgrounds, including those from the lesbian, gay, bisexual, transgender, and queer community.

This thesis pulls from sociological, linguistic, and queer theory literature to provide an in-depth understanding of identity, gender, and transgender identity formation. With this nuanced understanding of …

The Effect Of Gamification On Audiology Awareness Among Young Adults, Shenque Lester

Doctoral Dissertations

The profession of audiology is projecting a critical shortage of practicing professionals in the near future. Although there are many potential factors that are contributing to this problem, it is generally agreed that audiology as a profession is not readily identified as a career choice by undergraduate students, nor a recognizable healthcare field/service among the general public. Due to the increased instances of hearing loss in the general population as well as the aging of the population and need for audiological services, it is imperative to find an efficient means to improve the awareness of audiology as a potential career …

Acoustical Properties Of Amplified And Unamplified Stethoscopes When Examining Typical Body Sounds, Jeni Abrams Dunnington

Doctoral Dissertations

A stethoscope is intended for three main diagnostic purposes: listening to heart sounds, listening to lung sounds, and determining the presence or absence of bowel sounds (Callahan, Waugh, Matthew, & Granger, 2007). Currently, on the market there are two types of stethoscopes for practitioners to choose: unamplified and amplified stethoscopes. Furthermore, there is little research on the sound pressure levels (SPLs) produced by stethoscopes on the market. Therefore, the current study seeks to measure the SPL produced by various popular unamplified stethoscopes and compare those findings to the SPLs produced by amplified stethoscopes. Secondly, the SPL of selected amplified stethoscopes …

The Effect Of Road Noise On Sound Pressure Levels And Preferred Listening Levels Using Personal Listening Devices, Hayley Himstedt

Doctoral Dissertations

Using a PLD in an automobile introduces unique threats such as volume levels set at higher levels to reduce the masking effects of road noise that enters the automobile. Passengers enjoying prolonged PLD exposure may be at an increased risk of noise exposure or fluctuating sound pressure levels resulting in hearing loss. Historically, hazardous noise has been primarily associated with industrial/occupational activities; however, harmful noise from recreational activities is also prevalent. The Center for Disease Control (2015) lists turning down PLD volume as one of their top three methods for reducing the possibility of NIHL in children. Excessive listening level …

Hydration And Vocal Loading On Voice Measures, Anusha Sundarrajan

Open Access Dissertations

Vocal loading adversely affects the healthy larynx. The negative effects of vocal loading are thought to be exacerbated in dry environments, noisy environments, using non-habitual speaking patterns, and voice quality. Advancing age is also thought to be a risk factor for the negative effects of loading. To systematically tease out the effects of these factors on the healthy larynx, three different experiments were conducted. In each experiment, healthy participants produced 45-minutes of child-directed speech. In experiment 1, older, healthy adults produced loud child-directed speech, in the presence of background noise, in both low and moderate humidities, and voice was assessed. …

Toddlers And Technology: An Examination Of How The Digital Surround May Be Related To Prototypic Vocabulary Development And Social Interactions During Play, Hannah Biarnesen Hutcheson

Graduate Theses and Dissertations

This study sought to examine how the digital technology that surrounds young children may be related to prototypic vocabulary development and Social interactions during play. Twenty-six families in the Northwest Arkansas region with children between 15-36 months of age participated in the study. Thirteen children attended a campus preschool, six children attended a grant-funded local preschool, and seven children, all from the Northwest Arkansas area, were part of an earlier home-based study. The materials for the study included a developmental-technology use questionnaire and the MacArthur-Bates Communicative Development Inventories. Archival videotaped play sessions with the seven home-based children utilized a “Little …

The Formal Approaches And Multicultural Considerations Of Assessing Aphasia For The Neurogenic Population From The Perspective Of A Monolingual Clinician, Lauren C. Carter

Theses and Dissertations

Aphasia is a neurogenic disorder, most commonly caused by stroke, which affects speaking, listening, reading, and/or writing skills. Persons with aphasia are typically left with communication limitations despite unaffected cognition. Many of the standardized assessments available for aphasia examination are not realistic instruments. Formal assessments are time consuming and rarely include multicultural or multilingual materials. The clinician must allow every opportunity for the PWA to demonstrate their communicative abilities during an aphasia assessment. This requires providing stimuli materials relevant to the PWA’s culture, assessing in the PWA’s primary language, and conducting the exam quickly to prevent fatigue. The ECLS-B is …

Deficits In Sound Pattern Sequencing In Children With Specific Language Impairment: A Networks Approach, Sara J. Benham

Open Access Theses

Children with specific language impairment (SLI) demonstrate primary deficits in morphosyntax, which has served as the central theme in theoretical and clinical approaches. However, a striking number of children with SLI also exhibit speech sound deficits, characterized both by increased error patterns and by high levels of variability. These speech sound deficits have been under-studied and are not explicitly tied to accounts of SLI. In the present study, theoretical approaches drawn from dynamical systems and sequence learning are used to address speech production learning in children with SLI. Standard approaches to sound accuracy and variability and articulatory variability are integrated …

Neural Activity Reveals Effects Of Aging On Inhibitory Processes During Word Retrieval, Ranjini Mohan

Open Access Dissertations

Word retrieval difficulties are one of the most frustrating problems in older adults. Poorer access to phonological (speech sound) representation of the target word has been postulated as the underlying deficit, supported by findings of improvement in word retrieval after phonological priming. But the great variability in naming performance among older adults may reflect cognitive scaffolding or compensatory neurophysiological processes related to maintenance or decline of naming abilities. In order better understand aging effects in the underlying neurophysiological changes associated with phonological retrieval, the present study examined electrophysiological correlates of phonological priming and word retrieval in adults across the lifespan. …

The Effect Of Cost, Benefit, And Level Of Technology On Patient Preference And Satisfaction With Hearing Aids, Lindsay M. Young

Doctoral Dissertations

The present double blind study sought to determine if experienced hearing aid users can differentiate between different levels of hearing aid technology. Specifically, the following research questions were addressed: (1) Are HINT scores affected by level of hearing aid technology for experienced hearing aid users?; 2) Is benefit/satisfaction of hearing aids affected by level of technology for experienced hearing aid users?; and (3) How do hearing aid users rank different levels of technology? If a perceptual difference in hearing aid technology is identified by hearing aid users, participants were asked to identify how money much they would be willing to …

Assessing Vocabulary Of Children: Investigating The Evaluation And Instruction Of Basic Concepts, Rebecca Elizabeth Smith

Graduate Theses and Dissertations

Vocabulary knowledge of preschool children is a key factor in predicting literacy success in elementary school (Hammer, Farkas, & Maczuga, 2010). However, few deliberate attempts to teach basic concept vocabulary have been studied (Bowers & Schwarz, 2013; Wilson, 2004). The purpose of this research is to determine if large group explicit instruction with interactive activities of specific basic concept vocabulary will increase preschool children's understanding of basic concept terms when measured by a standardized basic concept assessment. This research will also assess the validity of a basic concept-curriculum based measure (BC-CBM) as an efficient tool to monitor a child's understanding …

The Effect Of Auditory Processing Abilities On Acceptable Noise Levels, Brandee E. Richardson

Doctoral Dissertations

The purpose of the present study was to determine typical acceptable noise levels (ANLs) in children diagnosed with auditory processing disorder (APD) and compare those to ANLs in children without APD. Sixteen participants, eight children with APD and eight children without APD, were administered a complete audiological evaluation and a series of APD tests [Filtered Words, Competing Sentences, and Auditory Figure Ground (0) subtests of the SCAN– 3C; Staggered Spondaic Word test; and Pitch Pattern test] to determine normal or abnormal auditory processing ability. Conventional ANLs were measured on each participant to determine acceptance of background noise. The results …

Ear Specific Anl Measurements In Individuals With Unilateral And Asymmetrical Sensorineural Hearing Loss, Rebecca Howard

Doctoral Dissertations

The present study sought to determine if ANLs differ between ears within subjects with unilateral or asymmetrical SNHL. ANL was measured in four conditions (i.e., binaural, better ear, poorer ear unmasked, and poorer ear masked) in fifteen adults, nine with unilateral SNHL and six with bilateral asymmetrical SNHL. A significant difference between ANL in the four conditions (i.e., binaural, better ear, poorer ear unmasked, and poorer ear masked) was identified; however, the subjects with unilateral and asymmetrical SNHL behaved similarly throughout the testing. When comparing the four conditions, the results showed a significant difference between both the binaural ANL and …

Grant Proposal: Effects Of Sound Field Amplification On Standardized Test Scores, Jessica Ivey Coker

Doctoral Dissertations

Research has shown that the majority of classroom environments lack appropriate acoustical standards to ensure optimal learning conditions. During the early school grades, it is especially crucial that students overcome poor listening environments to obtain the fundamental educational skills necessary for academic success. Furthermore, the State of Louisiana conducts standardized test assessments (LEAP and iLEAP) to measure the students' knowledge and skills gained. These standardized test scores not only determine if the student progresses to the next grade, but also influences the amount of federal revenue and how the revenue is allocated to the schools. A proposed remedy to …

A Comparison Of The Effects Of Soundfield Amplification On Acoustical Characteristics And Word Recognition Performance In Relocatable And Permanent Classrooms, Sarah M. Babin

Doctoral Dissertations

There are three acoustical characteristics that should be addressed when developing a good classroom listening environment: signal-to-noise ratio (SNR), reverberation time (RT), and levels of background noise. Previous research has shown that soundfield (SF) amplification systems help to improve these three characteristics, thus improving the classroom listening environment. In the present study, two seventh-grade classrooms were used: one relocatable classroom and one permanent classroom. Acoustical characteristics and speech levels were measured in both classrooms under two amplification conditions (unamplified and amplified). Word recognition abilities of 37 students were also measured under the two amplification conditions in both classrooms. Results showed …

The Effect Of Hearing Aid Program On The Perceived Sound Quality Of Music, Kalyn Kennedy Bradford

Doctoral Dissertations

Hearing loss affects many aspects of people's lives, including both communication and their ability to enjoy music. Currently, however, there is very little research on patient perception of music through hearing aids; therefore, the purpose of this study was to determine if there was a difference in the perceived listener satisfaction for music between a standard music program and the commonly used option for programming hearing aids (i.e., an automatic program). Data was collected using fifteen participants with symmetrical mild to moderately-severe sensorineural hearing loss with normal to near normal low frequency hearing. Participants were asked to listen to a …

Effect Of Noise On Transient-Evoked Otoacoustic Emissions And Pure-Tone Screening Audiometry, Laura Annette Wade

Doctoral Dissertations

Currently, the American Speech-Language Hearing Association (ASHA) recommends pure-tone audiometry as the preferred audiometric screening method of school-aged children; however, background noise is often present and can result in high referral rate. The current study's goal was to examine the effect of noise on the pass rate on transient-evoked otoacoustic emissions (TEOAEs) and pure-tone audiometric screening measures. Twenty normal hearing adults (M = 22.85), eighteen females and two males, were screened with TEOAEs and pure-tone audiometry in quiet and in different levels of noise (i.e., 40 dB SPL, 50 dB SPL, 60 dB SPL) in a sound-treated booth.

Pure-tone audiometry …

Receiver Position And Acceptance Of Noise, Speech Understanding, And Sound Quality Ratings, Anna L. Ford

Doctoral Dissertations

The effect of receiver position in a hearing aid on acceptance of background noise, speech intelligibility, sound quality judgments, and listener preference was measured in adults with normal to mild sloping to moderate to severe sensorineural hearing loss. Participants were fit with open-fit behind-the-ear (BTE) and receiver-in-the-ear (RITE) hearing aids. After a 3-week trial with each device, acceptance of noise levels, speech understanding in quiet and in noise, and sound quality ratings were conducted. At the conclusion of the study, listener preference between the devices was evaluated. Results revealed that receiver position did not significantly affect acceptance of background noise, …

Effects Of Hearing Aid Amplification On Robust Neural Coding Of Speech, Jonathan Daniel Boley

Open Access Dissertations

Hearing aids are able to restore some hearing abilities for people with auditory impairments, but background noise remains a significant problem. Unfortunately, we know very little about how speech is encoded in the auditory system, particularly in impaired systems with prosthetic amplifiers. There is growing evidence that relative timing in the neural signals (known as spatiotemporal coding) is important for speech perception, but there is little research that relates spatiotemporal coding and hearing aid amplification.

This research uses a combination of computational modeling and physiological experiments to characterize how hearing aids affect vowel coding in noise at the level of …

Predicting Language Impairment Status: A Risk Factor Model, Johanna Maria Rudolph

Open Access Dissertations

The etiology of specific language impairment (SLI) is multifactorial. Research has shown that genetic, environmental, and developmental factors may influence the course of its development. Because many of these factors are present even before a child is born, it is possible that a child's risk of developing the disorder can be identified long before grammatical deficits are observed. The goal of this study was to develop and validate a screening tool to discriminate between children with SLI and typically developing (TD) children using risk factor information including gender, family history of communication or reading disorders, socioeconomic status, maternal and paternal …

Neural Encoding Of Complex Signals In The Healthy And Impaired Auditory Systems, Saradha Ananthakrishnan

Open Access Dissertations

Individuals with sensorineural hearing loss (SNHL) typically experience difficulty in understanding speech. Our current knowledge of deficits in speech perception and encoding consequent to SNHL is restricted to psychophysical studies in humans and single-unit experiments in animals. However, the nature of degradation in neural encoding of speech following hearing impairment in humans has not been extensively researched. The objective of this dissertation is to provide a systematic evaluation of neurobiological signature of hearing loss at the subcortical level using an objective electrophysiological non-invasive neural index, the frequency following response (FFR). Subcortical neural encoding of speech signals is explored by quantifying …

Effects Of Untrained Earmold Impression Taking On Custom Hearing Protector Device Performance, Kelly R. Pack

Doctoral Dissertations

Today's consumer is increasingly turning to the internet for both healthcare information as well as the purchase of custom hearing protection devices (HPDs). These HPDs are often cast from do-it-yourself home ear impression kits that include a syringe and silicone earmold impression material to be injected into the ear canal. Although not required by law, earmold impressions have typically been taken by medical professionals and other individuals formally trained in the procedures and safety measures of effective earmold impression taking. The main purpose of this study was to determine if do-it-yourself earmold impressions produce HPD's with lower attenuation levels than …

Preschool Language And Phonological Proficiencies In Predicting Stuttering Recovery Or Persistence, Caroline E. Spencer

Open Access Theses

The purpose of this study was to investigate the relationship between expressive and receptive language, phonological, and verbal working memory proficiencies in the preschool years and eventual recovery from or persistence in stuttering. Participants included 40 children who stutter (CWS). At ages 3-5 years, participants were administered the Test of Auditory Comprehension of Language, 3rd edition (TACL-3), the Structured Photographic Expressive Language Test, 3rd edition (SPELT-3), Bankson-Bernthal Test of Phonology--Consonant Inventory subtest (BBTOP--CI), Test of Auditory Perceptual Skills--Revised (TAPS--R) auditory number memory and auditory word memory subtests, and the Dollaghan & Campbell Nonword Repetition Test (NRT). Stuttering behaviors were tracked …