Speech Pathology and Audiology Commons^™

Clinical Case Study: The Effects Of Task Dynamics And Saltatory Pneumotactile Stimulation On Cerebral Oxygenation, Cognitive Performance, And Sensorimotor Function In An Adult Following Left Ischemic Mca Stroke, Bridget Slagle

College of Education and Human Sciences: Dissertations, Theses, and Student Research

In the chronic stage of stroke recovery, neuroplasticity is thought to require external influence, and is often considered to be experience-dependent, or “Hebbian,” plasticity. Current studies have been investigating multiple ways to induce plasticity to enhance recovery, including investigating the role of sensory stimulation in cortical priming to enhance the effects of rehabilitation interventions.

This case study of an 80-year-old female with aphasia after L-MCA ischemic stroke included 18 neurotherapeutic sessions over 10 weeks. Each session included pneumotactile somatosensory stimulation to the glabrous hand and perioral face, delivered to both the left and right side via the GALILEO, as well …

Hidden Word Treasure Hunt: Design Of Dyslexia Game-Based Intervention, Olivia N. Epp

Honors Program: Senior Projects (Public)

For this creative project, a literacy intervention board game entitled Hidden Word Treasure Hunt was designed for elementary students with dyslexia. Developmental Dyslexia is a neurodevelopmental learning disability which causes reading and writing difficulties. The goal of the intervention is to provide a fun and engaging way for students with dyslexia to practice skills like spelling, phonemic awareness, rhyming, and more. The game includes multiple choice question cards (treasure cards) and challenge spelling cards (key cards), and the student also has the opportunity to practice spelling the words with a whiteboard and marker. The student and SLP can play their …

The Effect Of Cerebral Somatosensory Network Priming On Language Function In Chronic L-Mca Ischemic Stroke: A Companion Case Study, Mandelin E. Wollesen

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Chronic aphasia following a left middle cerebral artery (L-MCA) stroke is often associated with limited recovery beyond the acute phase, necessitating interventions that target neuroplastic mechanisms. This study examined the effects of somatosensory pneumotactile stimulation paired with cognitive-linguistic tasks on functional language performance in an individual with chronic aphasia. Using a single-subject pre-post design, the participant completed a 10-week intervention protocol involving repeated pneumotactile stimulation via the GALILEO system combined with language and motor tasks. Outcomes were assessed using standardized measures, discourse-based language samples, oral reading, repetition, and phonemic verbal fluency. Discourse was analyzed using Correct Information Units (CIUs), words …

Aging-Related Hearing Decline And Resting State Networks, Cassidy S. T. Ellsworth

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This study investigated the effects of age-related hearing decline on functional networks using resting-state functional magnetic resonance imaging (rs-fMRI). The main objective of the present study was to examine resting-state functional connectivity (rsFC) and graph theory-based network efficiency metrics in forty-nine adults categorized by age and hearing thresholds to identify the neural mechanisms of age-related hearing decline. RsFC within key brain networks and auditory-related brain regions, including the default mode network, salience network, dorsal attention network, and primary auditory cortices, was assessed using region-of-interest (ROI)-based and graph theory approaches. Functional metrics, such as rsFC strength and global and local efficiency, …

Clinical Case Study: The Effects Of Saltatory Pneumotactile Stimulation Of Glabrous Hand And Perioral Face On Cerebral Oxygenation, Cognitive Performance, And Sensorimotor Function In An Adult Following Left Hemorrhagic Stroke, Tara L. Hull

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Stroke remains a leading cause of adult disability and a significant global health concern. Effective rehabilitation strategies for cognitive and communicative impairments following stroke are limited (Kuhn & Sharman, 2023). One emerging approach involves repetitive somatosensory stimulation to drive cerebral hemodynamic changes, potentially offering a novel rehabilitative method. Functional Near-Infrared Spectroscopy (fNIRS) is a non-invasive, accessible tool for monitoring these changes during stroke recovery. Prior studies suggest tactile stimulation rapidly affects brain hemodynamics (Custead et al., 2015; Oh et al., 2017). This clinical single-case study explored the use of GALILEO saltatory pneumotactile stimulation applied to the face and hand in …

Music And Word Learning In Children Diagnosed With Developmental Language Disorder, Rebekah G. Sweeney

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Purpose: This study investigates whether incorporating music into vocabulary interventions improves rate of learning and retention of words in children with developmental language disorder (DLD). Emerging literature continues to show the plentiful benefits of music as a tool for intervention in many settings, including the world of speech pathology (Levitin, 2024). However, it is also evident that there is a connection between struggling with language, and struggling with musical elements, such as rhythm and pitch perception, particularly in children with DLD (Boorom et al., 2022; Kreidler et al., 2023). This study seeks to tease out if music is an effective …

The Adverse Childhood Experiences Identification Gap In Speech Language Pathology, Mallory Prior

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Children exposed to adverse childhood experiences, a variety of potentially traumatic events occurring within the first 18 years of life, are at increased risk for speech and language disorders. Due to the high prevalence of trauma and its lasting effects, it is almost guaranteed that children who are experiencing the ongoing effects from adversity will be found on practicing Speech Language Pathologists’ caseloads. This scoping review was designed to identify current screening practices of Speech Language Pathologists (SLP) in comparison to other professionals (e.g., allied health and education), as well as additional information related to screening procedures for SLPs. The …

Applying The Evidence: Taste Manipulation As A Dysphagia Management Strategy, Ross M. Westemeyer, Angela M. Dietsch, Rachel W. Mulheren

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: This narrative review aims to summarize the evidence regarding taste manipulation as a dysphagia management strategy within the evidence-based practice framework, with a focus on clinical application for speech-language pathologists.

Method: First, we present background information on the physiology of taste and swallowing. A summary of research evidence on the effect of taste on swallowing is presented, followed by suggested methods for incorporating taste into swallowing evaluation and intervention. An overview of individual factors that can impact taste perception is provided. Finally, we discuss methods of clinical application and future directions for clinicians.

Conclusions: Although taste …

Instrumental Assessment Of Aero-Resistive Expiratory Muscle Strength Rehabilitation Devices, Angela M. Dietsch, Rahul Krishnamurthy, Kelsey Young, Steven M. Barlow

Department of Special Education and Communication Disorders: Faculty Publications

Purpose

Expiratory muscle strength training (EMST) is increasingly being used to treat voice, cough, and swallowing deficits in a wide range of conditions. However, a multitude of aero-resistive EMST models are commercially available, and the absence of side-by-side comparative data interferes with clinicians’ ability to assess which model is best suited to a particular client’s needs. The primary aim of this research was to test and compare the pressure and flow parameters of six currently available EMST models to help inform clinical decision making.

Method

We identified and tested five devices of each of six different EMST models to generate …

Services Provided To Aging Individuals With Intellectual Disabilities: Survey Of Speech Language Pathologists, Claire H. Gatewood

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Purpose: The present study explored current speech-language pathology service provision for aging individuals with intellectual disabilities in the United States, including areas and domains of services, factors restricting service provision, and reported knowledge and confidence of individuals within the field of speech-language pathology in providing services, to identify possible gaps of service and needed improvement.

Methods: Participants (n = 272) from across the United States completed an online survey to gather descriptive information about current speech-language pathology service provision for aging individuals with intellectual disabilities. Participants were recruited through state speech-language hearing associations and universities with speech-language pathology clinics …

The Effect Of Genetic Taste Status On Swallowing: A Literature Review, Theresa S. Lee, Angela M. Dietsch, Rana H. Damra, Rachel W. Mulheren

Department of Special Education and Communication Disorders: Faculty Publications

Purpose

Swallowing and taste share innervation pathways and are crucial to nutritive intake. Individuals vary in their perception of taste due to factors such as genetics; however, it is unclear to what extent genetic taste status influences swallowing physiology and function. The purpose of this review article is to provide background on genetic taste status, review the evidence on the association between genetic taste status and swallowing, and discuss research and clinical implications.

Method

A comprehensive literature review was conducted using search terms related to swallowing and genetic taste status. Studies were included if they investigated the main effect of …

Revisiting The Rainbow: Culturally Responsive Updates To A Standard Clinical Resource, Angela M. Dietsch, Richard Mocarski, Debra A. Hope, Nathan Woodruff, Miechelle Mckelvey

Department of Special Education and Communication Disorders: Faculty Publications

Purpose

Cultural responsivity is essential for efficacious and affirming clinical relationships. This may be especially important with historically marginalized clients, such as transgender and gender-diverse (TGD) people seeking behaviorally based affirming communication services. We recommend modifications to standard tools for diagnostics and training that otherwise might undermine our efforts to create an inclusive and affirming environment.

Method

Modifications to the Rainbow Passage, a standardized paragraph utilized for eliciting speech samples in clinical settings, focused on nongendered terminology and the elimination of content with religious connotations.

Results

The recommended edits to the Rainbow Passage maintain similar length, cadence, and phonetic balance …

Brain Activity Associated With Taste Stimulation: A Mechanism For Neuroplastic Change?, Angela M. Dietsch, Ross M. Westemeyer, Douglas H. Schultz

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: Neuroplasticity may be enhanced by increasing brain activation and bloodflow in neural regions relevant to the target behavior.We administered precisely formulated and dosed taste stimuli to determine whether the associated brain activity patterns included areas that underlie swallowing control.

Methods: Five taste stimuli (unflavored, sour, sweet-sour, lemon, and orange suspensions) were administered in timing-regulated and temperature-controlled 3 mL doses via a customized pump/tubing system to 21 healthy adults during functional magnetic resonance imaging (fMRI). Whole-brain analyses of fMRI data assessed main effects of taste stimulation as well as differential effects of taste profile.

Results: Differences in …

Non-Nutritive Suck Burst Pattern Stability In Extremely Premature Infants, Alejandra Marquez

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The development of non-nutritive suck (NNS) burst dynamics in preterm infants reflects the integrity of the brain and is used clinically to assess feeding readiness and orofacial motor development (Mizuno and Ueda, 2005). The application of NNS analytics in the present report represents one outcome measurement set that is part of an ongoing clinical trial involving extremely preterm infants (EPI’s,[GA]) randomized to receive either pulsed orocutaneous stimulation therapeutics or a sham (blind pacifier), in conjunction with salivary sampling twice weekly to map gene expression of key proteins involved in neural development and molecular sensing of feeding related pathways in the …

Predicting Autism From Infant Characteristics: A Systematic Review, Alysha Y. Henrichs, Cynthia Cress Ph.D.

Honors Program: Senior Projects (Public)

A literature review was conducted of 73 articles to explore 12-month-old characteristics in infants that predicted later diagnosis with autism (ASD). Articles were reviewed if they discussed ASD, infants with siblings diagnosed with autism (high-risk) and/or infants later diagnosed with autism without known family history of ASD (low risk). Articles were not reviewed if the participants were 36 months or older at the start of the study. More factors were identified that discriminate characteristics associated with later ASD diagnosis in infants between 12-24 months compared to characteristics of infants below 12 months. Characteristics of infants under 12 months that were …

Effects Of Hearing Aid Amplification On The Ability Of Individuals With Hearing Loss To Perceive Spectral Information, Angela Huebert, Marc Brennan

Honors Program: Senior Projects (Public)

Individuals with sensorineural hearing loss often struggle to understand speech even with the use of hearing aids; simply making sounds louder is not enough. Listeners decode various speech sounds with the help of spectral information, but how hearing aid amplification affects individuals’ ability to perceive those cues is not currently well understood. Altering the way hearing aids are programmed to provide amplification can potentially improve the ability of listeners with sensorineural hearing loss to access spectral information. The purpose of this study was to quantify the effects that hearing aid amplification has on the perception of spectral cues. Outcomes could …

Daily Phonatory Activity Of Individuals With Parkinson’S Disease, Jeff Searl, Angela M. Dietsch

Department of Special Education and Communication Disorders: Faculty Publications

Purpose

This study evaluated the amount of phonatory activity of Persons with Parkinson disease (PwPD) compared to adults without Parkinson’s disease measured over 3 days. The relationship between the amount of phonatory activity and Voice Handicap Index (VHI) total score was assessed as were differences in voicing activity across 3 days of data collection.

Methods

Fifteen PwPD receiving dopaminergic medication and fifteen age and sex matched adults without Parkinson’s disease completed the VHI and then wore a VocaLog vocal monitor (VM) for 3 consecutive days. From the VM data, the number of 1-second windows with dB sound pressure level > 0 …

Non-Nutritive Suck Burst Pattern Stability In Extremely Premature Infants, Alejandra Marquez

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The development of non-nutritive suck (NNS) burst dynamics in preterm infants reflects the integrity of the brain and is used clinically to assess feeding readiness and orofacial motor development (Mizuno and Ueda, 2005). The application of NNS analytics in the present report represents one outcome measurement set that is part of an ongoing clinical trial involving extremely preterm infants (EPI’s,[GA]) randomized to receive either pulsed orocutaneous stimulation therapeutics or a sham (blind pacifier), in conjunction with salivary sampling twice weekly to map gene expression of key proteins involved in neural development and molecular sensing of feeding related pathways in the …

Clinical Case Study: The Effects Of Real-Time Iemg Biofeedback On Facial Muscle Activation Patterns In A Child With Congenital Facial Palsy, Alyssa Molina

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Experimental findings are limited concerning efficacious procedures for facial reanimation following persistent idiopathic facial paralysis or paresis. Additional research examining the use of real-time integrated electromyography (iEMG) biofeedback for young children with persistent idiopathic facial paralysis is one approach to further understand the efficacy of electrophysiology biofeedback techniques in facial reanimation for this age group and etiology. iEMG research has applications in interventions for pathology of nerves and muscles affecting animation of the face. The proposed clinical case study will adopt real time iEMG visual biofeedback to facilitate facial reanimation in a preadolescent child. Quantitative measurements will determine orofacial muscle …

Empower: An Adaptable Writing Intervention, Carly Dinnes

The Nebraska Educator: A Student-Led Journal

EmPOWER is a six-stage writing intervention designed by speech-language pathologists to improve the expository writings of school-aged children with language learning and executive function disabilities. The intervention uses scaffolded instruction to transform struggling students into independent and self-regulating writers by training the students to use a variety of supports (e.g., graphic organizers, checklists) and strategies (e.g., referring back to the writing prompt) throughout the writing process. Many key features of the EmPOWER approach to writing instruction directly support components described in cognitive models of writing, which indicates that EmPOWER is a theory-guided writing intervention that may benefit a wide range …

The Ongoing Disparity Between Early Intervention Services And Those Who Need Them, Addison Goerl

Honors Program: Senior Projects (Public)

Although early intervention (EI) services have been shown to be highly effective and beneficial for young children, only 12% of those who qualify at 24 months receive services (Feinberg et al., 2011). There is a myriad of barriers that impedes access to EI services for those who need them. These barriers include myths about development and intervention, parent’s concerns being ignored, social inequalities limited access to early intervention, systemic barriers within the professional world, unperceived benefits of intervention, and limited communication flow to parents. However, there are some supports that help more families access EI services including doctors, early interventionists, …

Similarities And Differences Of Equine Assisted Speech Therapy And Traditional Speech Therapy: A Retrospective Study, Anna Schulz, Kristy Weissling, Josie Zimmel

UCARE: Research Products

Equine assisted speech therapy (EAST) utilizes horses for therapy while speech-language pathologists conduct the sessions (Thrall and Moser, 2015). Few studies show the effects EAST has on clients’ speech, communication, & language. This research study aims to identify strategies, progress, & objectives of EAST & traditional speech therapy (TST) to determine the similarities & differences of the therapies.

The Impact Of Active Learning In A Speech-Language Pathology Swallowing And Dysphagia Course, Rebecca H. Affoo, Justin L. Bruner, Angela M. Dietsch, Ciara Nellenbach, Theresa M. Jones, Mark E. Lehman

Department of Special Education and Communication Disorders: Faculty Publications

The signature pedagogy in Speech-Language Pathology (SLP) higher education programs has been criticized for its instructor-centric lecture format and emphasis on the lower tiers of Bloom’s taxonomy (simply memorizing knowledge) at the expense of helping students develop the clinical problem-solving skills required for a lifetime of practice and learning. The purpose of this study was to examine the responses of a cohort of graduate speech-language pathology students to an active learning-oriented swallowing and dysphagia course design. A potential relationship between student perceptions of the active learning pedagogy and academic performance was also explored. The results suggest that active learning positively …

Curriculum For Hippotherapy For Children With Autism, Brenna Schulte, Kristy Weissling

Honors Program: Senior Projects (Public)

Innovative effective forms of allied health therapies across disciplines including occupational therapy, physical therapy, and speech therapy are being continuously researched and implemented for people with a variety of disabilities. One form of therapy increasing in popularity is Hippotherapy (HPOT). There is a variety of terms related to hippotherapy. More broadly, Equine Assisted Therapy (EAT) is the use of horses to promote physical and mental health and can be utilized for a wide variety of disabilities, such as ADHD and Autism, as well as physical disabilities such as cerebral palsy. HPOT occurs when OT, PT, and ST professionals utilizes horse …

Taste Manipulation And Swallowing Mechanics In Trauma-Related Sensory-Based Dysphagia, Angela M. Dietsch, H. Duncan Dorris, William Pearson, Katie E. Dietrich-Burns, Nancy Pearl Solomon

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: This study explored the effects of highconcentration taste manipulation trials on swallow function in persons with sensory-based dysphagia.

Method: Dysphagia researchers partnered with clinical providers to prospectively identify traumatically injured U.S. military service members (N = 18) with sensorybased dysphagia as evidenced by delayed initiation and/or decreased awareness of residue/penetration/ aspiration. Under videofluoroscopy, participants swallowed trials of 3 custom-mixed taste stimuli: unflavored (40% weight/volume [wt/vol] barium sulfate in distilled water), sour (2.7%wt/vol citric acid in 40% wt/vol barium suspension), and sweet–sour (1.11% wt/vol citric acid plus 8% wt/vol sucrose in 40% wt/vol barium suspension). Trials were analyzed …

Motor-Induced Suppression Of The N100 Event-Related Potential During Motor Imagery Control Of A Speech Synthesizer Brain–Computer Interface, Jonathan S. Brumberg, Kevin M. Pitt

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: Speech motor control relies on neural processes for generating sensory expectations using an efference copy mechanism to maintain accurate productions. The N100 auditory event-related potential (ERP) has been identified as a possible neural marker of the efference copy with a reduced amplitude during active listening while speaking when compared to passive listening. This study investigates N100 suppression while controlling a motor imagery speech synthesizer brain–computer interface (BCI) with instantaneous auditory feedback to determine whether similar mechanisms are used for monitoring BCI-based speech output that may both support BCI learning through existing speech motor networks and be used as a …

Automatic Feature Discrimination Of Non-Nutritive Suck Dynamics Among Extremely Preterm Infants., Mckenzie Ann Ochoa

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Prematurity is the leading cause of death in the first month of life. Neonates are forced to engage the extrauterine environment with an underdeveloped nervous systems, with limited connectivity between orofacial sensorimotor anatomy, brainstem pattern-generating circuits, and sensory-driven thalamocortical inputs to layer IV of the neocortex. This is correlated with an inability to produce the complex neuromotor behaviors of oral feeding. The NTrainer System is an assessment and treatment tool that promotes ororhythmic motor patterning in preterm infants though pulsed orocutaneous stimulation to improve NNS.

This report represents an interim analysis of NNS development among 42 extremely preterm infants enrolled …

Examining Sensory Ability, Feature Matching And Assessment-Based Adaptation For A Brain–Computer Interface Using The Steady-State Visually Evoked Potential, Jonathan S. Brumberg, Anh Nguyen, Kevin M. Pitt, Sean D. Lorenz

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: We investigated how overt visual attention and oculomotor control influence successful use of a visual feedback brain-computer interface (BCI) for accessing augmentative and alternative communication (AAC) devices in a heterogeneous population of individuals with profound neuromotor impairments. BCIs are often tested within a single patient population limiting generalization of results. This study focuses on examining individual sensory abilities with an eye toward possible interface adaptations to improve device performance.

Methods: Five individuals with a range of neuromotor disorders participated in four-choice BCI control task involving the steady state visually evoked potential. The BCI graphical interface was designed to simulate …

Improving The Interprofessional Relationship Between Nurses And Speech-Language Pathologists: A Pilot Study, Christina Hamling, Kristy Weissling

Honors Program: Senior Projects (Public)

The research presented in this thesis explores the impact of interprofessional education on undergraduate nursing and speech-language pathology students with an overall goal of improving the interprofessional relationship between the two fields. Utilizing quantitative and qualitative methods in the form of a pre-test, educational materials, live guided observation, and post-tests, the researchers found an increase in the nursing students ’ ability to identify the role of the speech-language pathologist in a medical setting (knowledge). There was also an increase in the speech-language pathology students’ ability to understand how and when to communicate with nurses in a medical setting (knowledge).

Improving The Interprofessional Relationship Between Nurses And Speech–Language Pathologists: Expansion Of A Project, Christina Hamling, Kristy Weissling, Jan Tubbs, Jenna Dubas

UCARE: Research Products

The research presented on this poster explored the impact of extraprofessional education on undergraduate nursing and speech-language pathology students with an overall goal of improving the interprofessional relationship between the two fields. Utilizing quantitative and qualitative methods in the form of a pre-test, educational materials, live guided observation, and post-tests, the researchers found an increase in the nursing students ability to identify the role of the speech-language pathologist in a medical setting. There was also an increase in the speech-language pathology student’s ability to understand how and when to communicate with nurses in a medical setting.