Education Commons^™

Behind The Scenes Of Noninvasive Brain– Computer Interfaces: A Review Of Electroencephalography Signals, How They Are Recorded, And Why They Matter, Kevin M. Pitt, Jonathan S. Brumberg, Jeremy D. Burnison, Jyutika Mehta, Juhi Kidwai

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: Brain–computer interface (BCI) techniques may provide computer access for individuals with severe physical impairments. However, the relatively hidden nature of BCI control obscures how BCI systems work behind the scenes, making it difficult to understand “how” electroencephalography (EEG) records the BCIrelated brain signals, “what” brain signals are recorded by EEG, and “why” these signals are targeted for BCI control. Furthermore, in the field of speech-languagehearing, signals targeted for BCI application have been of primary interest to clinicians and researchers in the area of augmentative and alternative communication (AAC). However, signals utilized for BCI control reflect sensory, cognitive, and motor …

Auditory, Cognitive, And Linguistic Factors Predict Speech Recognition In Adverse Listening Conditions For Children With Hearing Loss, Ryan W. Mccreery, Elizabeth A. Walker, Meredith Spratford, Dawna Lewis, Marc A. Brennan

Department of Special Education and Communication Disorders: Faculty Publications

Objectives: Children with hearing loss listen and learn in environments with noise and reverberation, but perform more poorly in noise and reverberation than children with normal hearing. Even with amplification, individual differences in speech recognition are observed among children with hearing loss. Few studies have examined the factors that support speech understanding in noise and reverberation for this population. This study applied the theoretical framework of the Ease of Language Understanding (ELU) model to examine the influence of auditory, cognitive, and linguistic factors on speech recognition in noise and reverberation for children with hearing loss.

Design: Fifty-six children with hearing …

Enhancing Self-Monitoring With Differential Negative Reinforcement Of Alternative Behavior For Increasing Students’ Writing Production, Meghann Torchia

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

Writing is a difficult task for many students who find it aversive, and who attempt to escape the task. Self-monitoring and differential negative reinforcement of alternative behavior (DNRA) are two approaches that have been shown to improve quantity of performance, but no studies were found that combined the two methods to determine whether they are more effective in combination than in isolation. The purpose of the present study was to evaluate the effectiveness of using DNRA to enhance self-monitoring for increasing writing productivity using a multiple probe, across participants, design. Number of words and number of sentences were measured. For …

How Does Pre-Teaching Of Vocabulary And The Use Of Technology Increase Student Learning In Science, Jennefer A. Hilgenkamp

Department of Teaching, Learning, and Teacher Education: Dissertations, Theses, and Student Research

Understanding science vocabulary is one of the key components leading to student success in mastering science content. This study looks at the research surrounding pre-teaching vocabulary and the use of technology in the classroom. The purpose is to further investigate and deepen knowledge of science vocabulary. This research will use mixed methods of data collection. The study reports aggregated data on twenty-seven students of varying academic levels and needs (Regular Education, English Language Learners (ELL), Special Education), within Team 6A, of the 6^th grade and data for seven students, who consented for the project, will be evaluated further, through …

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 and compared …

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 …

Atoh1 Directs Regeneration And Functional Recovery Of The Mature Mouse Vestibular System, Zahra N. Sayyid, Tian Wang, Leon Chen, Sherri M. Jones, Alan G. Cheng

Department of Special Education and Communication Disorders: Faculty Publications

Utricular hair cells (HCs) are mechanoreceptors required for vestibular function. After damage, regeneration of mammalian utricular HCs is limited and regenerated HCs appear immature. Thus, loss of vestibular function is presumed irreversible. Here, we found partial HC replacement and functional recovery in the mature mouse utricle, both enhanced by overexpressing the transcription factor Atoh1. Following damage, long-term fate mapping revealed that support cells non-mitotically and modestly regenerated HCs displaying no or immature bundles. By contrast, Atoh1 overexpression stimulated proliferation and widespread regeneration of HCs exhibiting elongated bundles, patent mechanotransduction channels, and synaptic connections. Finally, although damage without Atoh1 overexpression failed …

Least Prompts Approach For Improving Reading Comprehension Of Students With Intellectual Disabilities, Marisa M. Hoins

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

In this study, the researcher employed a least prompts intervention to improve listening comprehension responses for three participants with intellectual disabilities (ID). All participants were required to (a) be diagnosed with a moderate ID or have a medical diagnosis of a disability typically co-occurring with ID (e.g., Downs Syndrome), (b) be in grades one to seven, (c) communicate orally, and (d) have normal hearing and vision. In addition, all participants expressed choices through orally responding yes/no or by pointing to a response board. The researcher used a multiple baseline design across three participants to determine if there was a functional …

Individualized Instruction In Letter Name Identification For A Student With Cortical Visual Impairment, Holli Luff

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

Students with cortical visual impairment (CVI) have difficulties participating in literacy activities and the reading process. An evidenced-based curriculum was adapted and modified to teach letter naming to a student with CVI. A multiple probe design was used to determine whether the instruction was effective with a student with CVI and if instruction in letter identification support identification of letter sounds for a student with cortical visual impairment. There was a functional relationship between the explicit instruction and the students immediately recorded correct responses, but the skill was not maintained.

Advisor: Mackenzie Savaiano

Considering Augmentative And Alternative Communication Research For Brain-Computer Interface Practice, Kevin M. Pitt, Jonathan S. Brumberg, Adrienne R. Pitt

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: Brain-computer interfaces (BCIs) aim to provide access to augmentative and alternative communication (AAC) devices via brain activity alone. However, while BCI technology is expanding in the laboratory setting, there is minimal incorporation into clinical practice. Building upon established AAC research and clinical best practices may aid the clinical translation of BCI practice, allowing advancements in both fields to be fully leveraged.

Method: A multidisciplinary team developed considerations for how BCI products, practice, and policy may build upon existing AAC research, based upon published reports of existing AAC and BCI procedures.

Outcomes/Benefits: Within each consideration, a review of BCI research …

Uncoordinated Maturation Of Developing And Regenerating Postnatal Mammalian Vestibular Hair Cells, Tian Wang, Mamiko Niwa, Zahra N. Sayyid, Davood K. Hosseini, Nicole Pham, Sherri M. Jones, Anthony J. Ricci, Alan G. Cheng

Department of Special Education and Communication Disorders: Faculty Publications

Sensory hair cells are mechanoreceptors required for hearing and balance functions. From embryonic development, hair cells acquire apical stereociliary bundles for mechanosensation, basolateral ion channels that shape receptor potential, and synaptic contacts for conveying information centrally. These key maturation steps are sequential and presumed coupled; however, whether hair cells emerging postnatally mature similarly is unknown. Here, we show that in vivo postnatally generated and regenerated hair cells in the utricle, a vestibular organ detecting linear acceleration, acquired some mature somatic features but hair bundles appeared nonfunctional and short. The utricle consists of two hair cell subtypes with distinct morphological, electrophysiological …

Sodium-Activated Potassium Channels Shape Peripheral Auditory Function And Activity Of The Primary Auditory Neurons In Mice, Daniël O.J. Reijntjes, Jeong Han Lee, Seojin Park, Nick M.A. Schubert, Marcel Van Tuinen, Sarath Vijayakumar, Timothy A. Jones, Sherri M. Jones, Michael Anne Gratton, Xiao-Ming Xia, Ebenezer N. Yamoah, Sonja J. Pyott

Department of Special Education and Communication Disorders: Faculty Publications

potassium (K+) channels shape the response properties of neurons. Although enormous progress has been made to characterize K+ channels in the primary auditory neurons, the molecular identities of many of these channels and their contributions to hearing in vivo remain unknown. Using a combination of RNA sequencing and single molecule fluorescent in situ hybridization, we localized expression of transcripts encoding the sodium-activated potassium channels KNa1.1 (SLO2.2/Slack) and KNa1.2 (SLO2.1/Slick) to the primary auditory neurons (spiral ganglion neurons, SGNs). To examine the contribution of these channels to function of the sGNs in vivo, we measured auditory brainstem responses in KNa1.1/1.2 double …

Automatic Nonnutritive Suck Waveform Discrimination And Feature Extraction In Preterm Infants, Chunxiao Liao, Austin O. Rosner, Jill L. Maron, Dongli Song, Steven M. Barlow

Department of Special Education and Communication Disorders: Faculty Publications

Background and Objective: The emergence of the nonnutritive suck (NNS) pattern in preterm infants reflects the integrity of the brain and is used by clinicians in the neonatal intensive care unit (NICU) to assess feeding readiness and oromotor development. A critical need exists for an integrated software platform that provides NNS signal preprocessing, adaptive waveform discrimination, feature detection, and batch processing of big data sets across multiple NICU sites. Thus, the goal was to develop and describe a crossplatform graphical user interface (GUI) and terminal application known as NeoNNS for single and batch file time series and frequency-domain analyses of …

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 …

Differentiation Of Patients With Balance Insufficiency (Vestibular Hypofunction) Versus Normal Subjects Using A Low-Cost Small Wireless Wearable Gait Sensor, Tam Q. Nguyen, Jonathan H. Young, Amanda Rodriquez, Steven Zupancic, Donald Y. C. Lie

Department of Special Education and Communication Disorders: Faculty Publications

Balance disorders present a significant healthcare burden due to the potential for hospitalization or complications for the patient, especially among the elderly population when considering intangible losses such as quality of life, morbidities, and mortalities. This work is a continuation of our earlier works where we now examine feature extraction methodology on Dynamic Gait Index (DGI) tests and machine learning classifiers to differentiate patients with balance problems versus normal subjects on an expanded cohort of 60 patients. All data was obtained using our custom designed low-cost wireless gait analysis sensor (WGAS) containing a basic inertial measurement unit (IMU) worn by …