Speech Pathology and Audiology Commons^™

Independence Of Spectral Contrast Effects Across Different Frequency Regions In Speech Perception, Christian E. Stilp, Matthew B. Winn

Speech Pathology and Audiology Faculty Research and Publications

Identification of speech sounds is influenced by spectral contrast effects (SCEs), the perceptual magnification of spectral differences between successive sounds. SCEs result in the categorization of a target sound being biased away from spectral properties in the preceding acoustic context. Given remarkable consistency in the magnitudes of these contrast effects within the same frequency region, it was hypothesized that they would also show stable relationships across different frequency regions. In this study, normal-hearing listeners’ phoneme categorization and contrast effects were assessed where phonetic contrasts were driven by changes in low-frequency F₁ (“big”-“beg” continuum), mid-frequency F₃ (“dot”-“got”), or high-frequency …

Beyond Mean Length Of Utterance: Novel Measures For Characterizing The Spoken Language Of Autistic Children, Janine Mathee-Scott, Courtney E. Venker

Speech Pathology and Audiology Faculty Research and Publications

Purpose:

Mean length of utterance (MLU) is a common measure of expressive language complexity in young children, including autistic children. However, means, by nature, obscure some information about spread and variability in data. Thus, we aimed to examine a new approach to characterizing linguistic complexity in autistic children by investigating the validity of two novel measures—range of length of utterance (RLU), standard deviation of length of utterance (SDLU)—alongside established measures: MLU and total utterances (TU).

Method:

Participants were 40 autistic children (12 girls, 28 boys; M_age = 41.78 months). Children participated in 10-min, play-based language samples with their caregivers. …

Exploring Tonal Focus: Qualitative Perspectives And Acoustic Correlates In Slps And Singers, Lily C. Carpenter

Theses and Dissertations--Communication Sciences and Disorders

Tonal focus is a complex construct that has variable definitions and interpretations across professions and within existing literature. Although tonal focus is widely described both clinically and pedagogically, both fields differ in their perspectives and goals related to the concept. This study aims to understand singers’ and speech language pathologists’ (SLP) conceptual perception and acoustic demonstration of tonal focus. Eleven SLPs and six singers were recruited to participate in the study. Participants completed an interview with the primary investigator and were recorded producing forward, neutral, and backward tonal focus in various contexts. Acoustic and qualitative analysis indicated that tonal focus …

Integrating Perspectives Of People With Aphasia: A Holistic Approach To Community Aphasia Groups Within An Intensive Comprehensive Aphasia Program, Mckinlee A. Mihelish

Graduate Student Theses, Dissertations, & Professional Papers

Introduction: People with aphasia (PWA) experience chronic communication deficits that impact daily life. Community Aphasia Groups (CAGs) are commonly used to address these challenges and have demonstrated psychosocial and communicative benefits; however, they lack standardized structure and are implemented with variability across settings. Additionally, much of the existing research focuses on group-level outcomes rather than participant-driven priorities, limiting clinicians’ ability to tailor interventions. This study examined what PWA want from CAG participation and how these priorities may change over time.

Methods: This quantitative study investigated priority changes among PWA participating in a CAG within a summer 2025 Intensive Comprehensive Aphasia …

Communication Sciences And Disorders Faculty Perspectives On Collaborating With Students As Instructional Partners, Bryanna Cosman

Master's Theses and Doctoral Dissertations

Student-faculty partnerships, such as instructional partnerships, have been shown to benefit both students and faculty members who engage in them. This form of collaboration does not commonly occur at public, comprehensive universities, especially in the field of communication sciences and disorders (CSD). The purpose of this study was to understand the perspectives of CSD faculty on collaborating with students as instructional partners (IP), as there is limited research on it. IPs are students who have successfully taken a class in the recent past, attend the course in a subsequent semester, and meet after each class with the professor to discuss …

Integrating Hippotherapy Into Interprofessional Aphasia Rehabilitation: A Feasibility Pilot Study, Bethany H. Wenger

Graduate Student Theses, Dissertations, & Professional Papers

Background and Significance: Stroke remains a leading cause of disability in the United States, affecting over 2.5 million individuals annually. Stroke-related motor and communication deficits often co-occur, increasing challenges for recovery, increasing social isolation, depression, and dependency. Hippotherapy has emerged as a novel treatment approach for neurorehabilitation; however, its application within interprofessional models for individuals with stroke-related motor and communication impairments remains underexplored. This study examines the feasibility, fidelity, and acceptability of an interprofessional intervention using hippotherapy for adults with chronic post-stroke aphasia, the purpose of which is to generate methodological guidance for future controlled trials.

Methods: A non-randomized, single-group …

Prosodic Comparisons Between Speech And Music For Different Emotions, Reagan Brothers

Honors Projects

This study compares the prosodic acoustic characteristics between different emotional expressions in speech and clarinet playing and evaluates the similarities in prosody between these two domains. The prosodic features analyzed include pitch, loudness, and duration, which are the psychoacoustic terms referring to fundamental frequency [f_o], intensity, and rate of time. The American folksong “I’ve Been Working on the Railroad” was both spoken and performed with three emotions: neutral, sad, and happy. The first comparison was how each prosodic characteristic compared across the three different emotions within each domain, and then prosody was compared across the two domains …

Exploring Future Educators’ Roles In Classroom Aac Use: Insight Into Knowledge, Skills, And Attitudes, Katrina M. King

Honors College Theses

The United States public school system requires the provision of a free and appropriate public education (FAPE) in the least restrictive environment (LRE) for qualifying students with disabilities (U.S. Department of Education, n.d.). Speech, language, and hearing related disabilities are among the qualifying categories (U.S. Department of Education, n.d.). Students with these disabilities may have complex communication needs (CCN), or significant limitations in their speech, language, and communication abilities (Communication Rights Australia, 2018). Augmentative and alternative communication (AAC), a type of assistive technology, offers support for these students, however, several barriers inhibit full communicative participation (American Speech-Language-Hearing Association [ASHA], n.d.-a). …

A Novel Method For Examining Autistic Children’S Comprehension Of Individual Words Produced Within Delayed Echolalia: A Proof-Of-Concept Pilot Study, Janine Mathee-Scott, Grace Corrigan, Emily Lorang, Zachary Hesse, Jennifer Johnson, Courtney E. Venker

Speech Pathology and Audiology Faculty Research and Publications

Delayed echolalia, or the repetition of previously heard speech, is often observed in the expressive language of autistic children. Relatively little is known about how the production of delayed echolalia fits within the overall picture of autistic children’s language ability, including receptive language. To date, no empirical studies have tested autistic children’s comprehension of individual words within their delayed echoes. The present study aimed to establish proof-of-concept for a novel method of examining children’s comprehension of individual words that they produce in their own delayed echoes. Using natural language sampling combined with parent report, we identified instances of delayed echolalia …

Too Loud To Ignore: Knowledge, Attitudes, And Practices Regarding Hearing Protection In Student Musicians And Ensemble Directors, Lucile Donald, Ashley G. Flagge

Ashley Flagge Publications

Musicians are at an elevated risk for noise-induced hearing loss (NIHL) due to repeated exposure to sound levels exceeding occupational safety guidelines. Although many strides have been made in educating music students on the potential dangers of noise exposure and the mitigating effects of hearing protection devices, the current attitudes on this topic among high school and college-level student musicians remain largely unknown. An electronic survey was administered to high school (n = 195) and university (n = 161)-level band students and ensemble directors (n = 15) regarding knowledge of noise/music-induced hearing loss (MIHL), personal practices with HPDs, and types …

Educating Future Nurse Practitioners And Physician Associates On Pretreatment Of Swallowing In Head And Neck Cancer, Hannah M. Berk, Erin L. O'Bryan, Imran Musaji, Carly A. Thomas, Jamie Harrington

Teaching and Learning in Communication Sciences & Disorders

Head and neck cancer treatment frequently results in long-term severe swallowing deficits, often requiring feeding tube dependency. Patients who have completed swallowing exercise programs before and during cancer treatment experienced more positive swallowing outcomes, but most patients are not referred for swallowing intervention early enough in their care to prevent long-term deficits. This student research project aimed to measure health profession students’ knowledge of swallowing pretreatment for head and neck cancer patients and to investigate the impact of an educational module developed and presented by a Communication Sciences and Disorders graduate student to improve knowledge and awareness of this clinical …

A Scoping Review Of Oral Feeding Skill Development In Typically Developing Children Part Ii: Exploring Variability In Oral Feeding Skill Descriptions, Amy Delaney, Anna Flatt, Hannah Koepp, Alissa Fial, Katherine C. Hustad

Speech Pathology and Audiology Faculty Research and Publications

Purpose:

This scoping review is the second in a two-part series that aims to synthesize the literature on oral feeding skills development and to create a classification system of observable skills. Building on the findings from Part 1, this article compiles and analyzes the types of feeding skills reported across studies and proposes a framework for standardizing terminology.

Method:

The review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines. Of the 14 studies identified in Part 1 that focused on feeding skill development, 11 included unique skill descriptions. These skills were coded and …

The Science Of Sound: Studying The Cognitive, Emotional, And Physiological Effects Of Frequency, Genre, And Music, Jett Yarborough

Senior Honors Theses

Music influences emotion, physiology, and cognition, yet little is known about how the frequency it is tuned to affects these influences. Prior research has shown that music tuned to 432 Hz can reduce stress, lower blood pressure, and improve sleep. My colleagues and I conducted two studies to investigate this. Our research found that music tuned to 432 Hz promotes a significant increase in memory retention and induces a state of focus and relaxation. These results suggest that shifting from the standard tuning frequency of 440 Hz to 432 Hz could have a profoundly positive impact on our daily lives. …

English-Spanish Bilingual Speech Language Pathologists’ Experiences Evaluating English Language Learner Students: Incorporating Conceptual Scoring, Barbara De Jesus Rivera, Raul Prezas

Journal of Human Services: Training, Research, and Practice

The number of multilingual/bilingual students has increased across schools in the United States. Assessment in both the native language and English is considered the standard for evaluating bilingual children referred for language testing. Conceptual Scoring is an evaluation approach for bilingual students that considers the students’ responses in both languages to obtain an overall language score; however, there is variability among practitioners on best practices for multilingual assessment.

Purpose: The current study (a) sought to explore the decision-making process of bilingual SLPs when evaluating bilingual students, (b) to gain a deeper understanding of how bilingual SLPs incorporate conceptual scoring in …

Imagining What’S Next In Pediatric Feeding Care, Amy L. Delaney

Speech Pathology and Audiology Faculty Research and Publications

Pediatric feeding disorder (PFD) is now recognized as a diagnostic entity, and we have the diagnostic and procedural codes for it. This is a turning point in our field because these codes don’t just unlock reimbursement—they validate and name the invisible. They allow us to collect data and identify patterns, and they open a door to remarkable things.

A Scoping Review Of Oral Feeding Skill Development In Typically Developing Children Part I: Methodologies, Populations, And Normative Data, Amy L. Delaney, Anna Flatt, Hannah Koepp, Alissa V. Fial, Katherine C. Hustad

Speech Pathology and Audiology Faculty Research and Publications

Purpose:

This scoping review is the first in a two-part series aimed at synthesizing literature on oral feeding skills and informing the development of a classification system of observable skills. This article consolidates research on feeding skill development in typically developing children. The second paper analyzes individual skills identified. This review addresses three questions: (a) What methods have been used to study feeding skill development? (b) What populations of typically developing children without feeding disorders have been studied? (c) What normative data on feeding skills are available?

Method:

Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for …

Clinician And Caregiver Perspectives On A Community-Based Dynamic Temporal And Tactile Cueing Treatment Trial For Childhood Apraxia Of Speech: Exploring Perceptions Of Research And Routine Clinical Practice, Donna C. Thomas, Geraldine Bricker-Katz, Elizabeth Murray, Shelley L. Velleman, Jenya Iuzzini-Seigel

Speech Pathology and Audiology Faculty Research and Publications

Purpose:

Dynamic Temporal and Tactile Cueing (DTTC) is an evidence-based treatment for children with childhood apraxia of speech. In clinical practice, speech-language pathologists (SLPs) frequently use an eclectic approach incorporating aspects of DTTC, for reasons that are not well understood. This research note describes a qualitative investigation of the experiences of SLPs and caregivers who participated in protocolized research DTTC for a 24-session treatment efficacy study. Specifically, we sought to understand the perspectives of these SLPs and caregivers regarding (a) DTTC treatment, as provided during the study, and (b) participating in a treatment research study.

Method:

Four SLPs and three …

Exploring The Validity Of Vocabulary Assessments In Racially, Dialectically, And Socioeconomically Diverse Preschool Populations, Lauren Betzer

LSU Master's Theses

Recent research has advocated for interactive assessments of vocabulary over more traditional, static assessments, as interactive assessments are more sensitive to linguistic and cultural diversity. Static vocabulary assessments, such as the Peabody Picture Vocabulary Test (PPVT), probe existing knowledge, while interactive assessments, such as the Quick Interactive Language Screener (QUILS), examines a child’s language in a wholistic manner by assessing previously learned vocabulary knowledge, syntactic knowledge, and processing when learning a new concept. It remains unclear which assessment more accurately captures children's vocabulary knowledge throughout the Deep South—a region characterized by its unique cultural and linguistic environment, which includes the …

A Pathway To Research-Reliable Dynamic Temporal And Tactile Cueing For Children With Childhood Apraxia Of Speech: A Multiphase Process For Training Community Clinicians, Julia Case, Maria I. Grigos, Shelley L. Velleman, Elizabeth Murray, Donna C. Thomas, Shelby Anumandla, Jenya Iuzzini-Seigel

Speech Pathology and Audiology Faculty Research and Publications

Purpose: Mounting research supports the use of motor-based intervention (e.g., Dynamic Temporal and Tactile Cueing [DTTC]) for children with childhood apraxia of speech (CAS), but large randomized controlled trials (RCTs) are needed to better understand optimal treatment conditions. Partnering with community clinicians may help support recruitment and data collection for large groups of participants with CAS. However, to achieve this, rigorous training is needed to ensure high-fidelity treatment and adherence to research protocols. This work presents a multiphase process for training community clinicians to implement high-fidelity DTTC. We then examined whether clinician factors predicted their performance on assessment tasks used …

Understanding The Care Needs Of People With Post-Stroke Aphasia: A Qualitative Study Of Stroke Care Transitions, Amy B. Thomas, Gerasimos Fergadiotis, Lonnie A. Nelson, Catherine R. Van Son, Celestina Barbosa-Leiker

Speech and Hearing Sciences Faculty Publications and Presentations

Communication difficulties experienced by people with aphasia (PWA) cause disconnects between meaningful conversations and care received. The purpose of this study was to identify concepts PWA define as (1) the most critical facilitators to transitional care and communicative access success, and (2) transitional care and communicative barriers. A qualitative descriptive study design was utilized. Semi-structured interviews were conducted with six PWA and two communication partners and analyzed using directed content analysis, guided by the theory of Human Scale Development. Findings revealed that barriers and facilitators centered on three Needs: (1) Participation: Participation in life events was directly related to public …

How Do Montessori-Based Activities Affect Behaviors For Older People With Dementia: A Literature Review, Isabel Quigley

University Honors Theses

Objectives: This literature review is meant to analyze the development on the research on Montessori-based activities for adults with dementia.

Introduction: Baby Boomers are the largest generation to enter senior age (65+) in history due to the advancement in medicine to increase life expectancy. Dementia is a neurocognitive disease that affects parts of the brain related to memory and signs typically surface around 65 years old. Dementia is not considered healthy aging. Montessori-based activities have been recently developed as an intervention to encourage a feeling of accomplishment and success for adults with dementia.

Methods: Two electronic databases …

Problem-Based Learning In Speech-Language Pathology Programs: A Scoping Review, Michelle P. Phoenix, Roohit Grewal, Kayla Brissette, Maya Albin, Minseo Kim

Teaching and Learning in Communication Sciences & Disorders

Purpose: Problem-based learning (PBL) promotes student-centered, active learning and has been applied in many health disciplines, including speech-language pathology (SLP). There is some SLP literature outlining how PBL has been applied and its components, however, how PBL is applied across SLP programs worldwide is yet to be explored. We therefore sought to answer the question, how do SLP programs apply PBL and what are the associated student outcomes?

Methods: Five databases were searched, as well as searching the grey literature for relevant articles. Covidence was used to de-duplicate, collate, and review articles. SLP program, study, PBL application, and student outcome …

Self-Reported Audiological And Vestibular Symptoms Associated With Lyme Disease, Daniella A. Bryan

Dissertations, Theses, and Capstone Projects

Background:

Lyme disease, an infectious vector-borne illness, is carried by the deer tick, Ixodes scapularis, which harbor the spirochete, Borrelia burgdorferi, affecting hundreds of thousands of people in the United States annually. Lyme disease has a multitude of clinical presentations and overlaps with other complex illnesses, making diagnosis and treatment a medical challenge. This distinct bacterium can migrate into any organ system through the mediums of soft tissue, the lymphatic system, and the circulatory system. Despite its prevalence and range in symptomatology, minimal research has been conducted to identify distinct audiological and vestibular symptoms associated with a Lyme …

What Of It? Coding The Unmarked Of-Preposition In Language Samples From Young Aae Speakers, Denise A. Finneran, Maura J. Moyle, Alaina Nash, Sixia Chen

Speech Pathology and Audiology Faculty Research and Publications

We examined the of-preposition in language samples because it is a highly variable feature that can be marked or unmarked (e.g., “out [of] the door”) depending on context. Children who speak African American English (AAE) produce unmarked of-prepositions in contexts that are universal across AAE and General American English (GAE; e.g., “out [of] the window”) and in contexts specific to the AAE dialect (e.g., “out [of] the car”). Guidance in the literature on this variability is limited for language sample analysis. Participants included 113 children who spoke AAE. We examined contexts with unmarked of-prepositions in narrative language samples in a …

A Developmental Texture Framework For Food Texture Progression: Implications For Feeding Development, Oral Motor Skills, And Pediatric Feeding Disorder, Amy L. Delaney, Sarah Staskiewicz, Suzanne Evans Morris, Sarah Smith-Simpson, Praveen S. Goday

Speech Pathology and Audiology Faculty Research and Publications

The introduction of food textures in a child's first 2 years of life plays a vital role in growth, nutrition, and feeding development. However, the absence of a standardized texture framework for studying texture progression limits both pediatric feeding research and the ability to diagnose pediatric feeding disorder (PFD) based on age-appropriate expectations. To address this gap, authors Delaney and Goday proposed data sharing from the Nestlé Feeding Infant-Toddler Study (FITS) to explore texture progression and define age-appropriate texture expectations. In response, Nestlé assembled a multidisciplinary panel of feeding experts to create standardized textures but did not provide financial or …

Deconstructing Professionalism: The Role Of The Dress Code, Klaire Brumbaugh, Lauren Wright-Jones

The Journal of Advancing Education Practice

Professionalism is a complex construct that is difficult to measure. Oftentimes in graduate training programs, adherence to a dress code is coupled with professionalism and professional behavior. This manuscript reviews dress codes in various graduate training programs. Strategies are provided for university faculty and administrators to lead their programs in developing culturally responsive practices by beginning to deconstruct dress code from the concept of professionalism.

Neuroanatomical And Morphometric Differences In Children Who Stutter, Mohammad A. Khan

Honors Scholar Theses

Childhood-Onset Fluency Disorder commonly known as stuttering is a neurodevelopmental speech disorder characterized by disruptions in speech fluency. While genetic and neurobiological factors are implicated, the structural brain differences underlying stuttering remain unclear. This study investigated neuroanatomical alterations in children who stutter (CWS) compared to typically fluent children (TFC), focusing on gray matter volume, cortical thickness, and surface area in speech-related regions; the Inferior Frontal Gyrus, Middle Temporal Gyrus, and Pre-motor Operculum. High-resolution MRI data from 100 children (48 CWS, 52 TFC) aged 3–12 years were analyzed using FreeSurfer. Group comparisons revealed no statistically significant differences in cortical thickness, surface …

The Relationship Between The Vestibulo-Ocular Reflex And Vestibular Perception In Trained Dancers Using Sinusoidal Harmonic Acceleration Testing, Diana Trinidad

Dissertations, 2020-current

Early studies have found that engaging in vestibular training, such as dance, may result in enhanced VOR suppression and changes in vestibular perception (e.g., lower sensations of vertigo) attributed to top-down modulation of subcortical neuronal networks and changes in the cerebellum. Dancers use spotting techniques to help control dizziness which involve holding their gaze on a visual object at eye level as they turn. As a result of this training, dancers become habituated to vestibular stimuli leading to lower VOR responses and decreased sensations of vertigo. This study investigated the relationship between the vestibulo-ocular reflex (VOR) and vestibular perception in …

Intertrial Coherence As A Measure Of Synchrony In Ocular Vestibular Evoked Myogenic Potentials And The Effect Of Gaze Angle, Sydney Brown

Dissertations, 2020-current

Ocular vestibular evoked myogenic potentials (oVEMPs) are produced by highly synchronous bursts of extraocular muscle activity in response to stimuli. These responses reflect utricular function and can be recorded using surface electromyography electrodes. Traditional analysis of oVEMPs is limited to time-domain waveform measurements, such as amplitude and latency of response peaks. Objective synchrony-based measures have not yet been applied to the analysis of oVEMPs, particularly in the comparison of synchrony across gaze angles. We followed the new time-frequency method of analysis developed by Clinard et al. (2022) that was successfully applied to cervical VEMPs to quantify response synchrony. Air-conducted oVEMPs …

Establishing The Feasibility Of Sustained Sinusoidal Cervical Vestibular Evoked Myogenic Potentials In Young Adults, Ashton Fowlkes

Dissertations, 2020-current

Cervical vestibular evoked myogenic potentials (cVEMPs) are used in clinics and research to assess the function of primarily the saccule. cVEMPs are typically stimulated with transient clicks or tone bursts through air conduction and are recorded from the sternocleidomastoid (SCM) muscle. The SCM is contracted by turning the head either left or right. In this study, we used sustained sinusoidal bone conducted stimuli. Using this new stimulus method allowed us to look at the possibility of a sustained cVEMP response, compared to the typically recorded transient response, as well as analyze the amplitude and signal-to-noise ratio (SNR) of the responses. …