Education Commons^™

Barriers And Solutions For Translating Brain-Computer Interfaces For Augmentative And Alternative Communication From Research Into Practice., Kevin Pitt

Department of Special Education and Communication Disorders: Faculty Publications

Barriers to the clinical translation of brain-computer interfaces (BCIs) include problems with reliability and set up. However, translation is further impeded by a lack of consistency between AAC practices and BCI procedures. This presentation will discuss barriers to BCI translation along with possible solutions and future directions for BCI research.

Revisiting The Role Of Augmentative And Alternative Communication In Aphasia Rehabilitation, Aimee Dietz, Sarah Wallace, Kristy Weissling

Department of Special Education and Communication Disorders: Faculty Publications

Purpose — The purpose of this article is to revisit the role of augmentative and alternative communication (AAC) in post stroke aphasia rehabilitation. The authors’ intent is to provide a viewpoint that expands the use of AAC in post stroke aphasia rehabilitation. Specifically, we seek to clarify the role of AAC in restorative and participation approaches to aphasia rehabilitation while also considering the role of AAC in a comprehensive treatment plan. The authors support their viewpoint with citations from both the historic and contemporary literature on aphasia rehabilitation.

Conclusions — A thought-provoking viewpoint on the role of AAC in post …

Functional Connectivity Evoked By Orofacial Tactile Perception Of Velocity, Yingying Wang Dr., Fatima Sibaii, Rebecca Custead, Hyuntaek Oh, Steven M. Barlow

Department of Special Education and Communication Disorders: Faculty Publications

The cortical representations of orofacial pneumotactile stimulation involve complex neuronal networks, which are still unknown. This study aims to identify the characteristics of functional connectivity (FC) evoked by three different saltatory velocities over the perioral and buccal surface of the lower face using functional magnetic resonance imaging in twenty neurotypical adults. Our results showed a velocity of 25 cm/s evoked stronger connection strength between the right dorsolateral prefrontal cortex and the right thalamus than a velocity of 5 cm/s. The decreased FC between the right secondary somatosensory cortex and right posterior parietal cortex for 5-cm/s velocity versus all three velocities …

Wireless Sensing Of Lower Lip And Thumb-Index Finger ‘Ramp-And-Hold’ Isometric Force Dynamics In A Small Cohort Of Unilateral Mca Stroke: Discussion Of Preliminary Findings, Steven M. Barlow, Rebecca Custead, Jaehoon Lee, Mohsen Hozan, Jacob Greenwood

Department of Special Education and Communication Disorders: Faculty Publications

Automated wireless sensing of force dynamics during a visuomotor control task was used to rapidly assess residual motor function during finger pinch (right and left hand) and lower lip compression in a cohort of seven adult males with chronic, unilateral middle cerebral artery (MCA) stroke with infarct confirmed by anatomic magnetic resonance imaging (MRI). A matched cohort of 25 neurotypical adult males served as controls. Dependent variables were extracted from digitized records of ‘ramp-and-hold’ isometric contractions to target levels (0.25, 0.5, 1, and 2 Newtons) presented in a randomized block design; and included force reaction time, peak force, and dF/dtmax …

Predictors Of Swallowing Outcomes In Patients With Combat-Injury Related Dysphagia, Nancy Pearl Solomon, Angela M. Dietsch, Katie Dietrich-Burns

Department of Special Education and Communication Disorders: Faculty Publications

Background: Traumatic injuries, such as those from combat-related activities, can lead to complicated clinical presentations that may include dysphagia. Methods: This retrospective observational database study captured dysphagia-related information for 215 US military service members admitted to the first stateside military treatment facility after sustaining combat-related or combat-like traumatic injuries. A multidimensional relational database was developed to document the nature, course, and management for dysphagia in this unique population and to explore variables predictive of swallowing recovery using Bayesian statistical modeling and inferential statistical methods. Results: Bayesian statistical modeling revealed the importance of maxillofacial fractures and soft tissue loss as primary …

Development Of First- And Second-Language Vocabulary Knowledge Among Language-Minority Children: Evidence From Single Language And Conceptual Scores, J. Marc Goodrich, Christopher J. Lonigan

Department of Special Education and Communication Disorders: Faculty Publications

This study evaluated the development of vocabulary knowledge over the course of two academic years, beginning in preschool, in a large sample (N = 944) of language-minority children using scores from single-language vocabulary assessments and conceptual scores. Results indicated that although children began the study with higher raw scores for Spanish vocabulary knowledge than for English vocabulary knowledge, this was reversed by the end of the first year of the study. Similarly, at the beginning of the study unique Spanish vocabulary scores were larger than unique English or shared Spanish-English vocabulary scores; however, by the end of the first year …

Retinoic Acid Degradation Shapes Zonal Development Of Vestibular Organs And Sensitivity To Transient Linear Accelerations, Kazuya Ono, James Keller, Omar López Ramírez, Antonia González Garrido, Omid A. Zobeiri, Hui Ho Vanessa Chang, Sherri M. Jones, Andrianna Ayiotis, Gregg Duester, Charles C. Della Santina, Sarath Vijayakumar, Kathleen E. Cullen, Ruth Anne Eatock, Doris K. Wu

Department of Special Education and Communication Disorders: Faculty Publications

Each vestibular sensory epithelium in the inner ear is divided morphologically and physio- logically into two zones, called the striola and extrastriola in otolith organ maculae, and the central and peripheral zones in semicircular canal cristae. We found that formation of striolar/central zones during embryogenesis requires Cytochrome P450 26b1 (Cyp26b1)- mediated degradation of retinoic acid (RA). In Cyp26b1 conditional knockout mice, formation of striolar/central zones is compromised, such that they resemble extrastriolar/peripheral zones in multiple features. Mutants have deficient vestibular evoked potential (VsEP) responses to jerk stimuli, head tremor and deficits in balance beam tests that are consistent with abnormal …

Photos For Visual Scene Displays: Input From Interviews With Visual Media Experts, Kevin Pitt, Meghan Salley, Kathrin Sindt, John Mccarthy

Department of Special Education and Communication Disorders: Faculty Publications

Visual Scene Displays (VSDs) are a promising interface for AAC systems for children and adults. Although recent research has focused on design principles of traditional grid displays, there is comparatively little information on VSDs. Ten individuals with a background in photography and visual composition were interviewed following a brief overview of visual scene displays applied to AAC systems. Interviews were analyzed for themes, lasting around 45 minutes each. Participants gave feedback on principles of composition, how those principles inform their own work, and “quick tips” on matching photos with goals related to communication in VSDs.

Individuals whose natural speech is …

The Perceptions Of Aac Professionals On Supporting The Clinical Translation Of Brain-Computer Interface Technology, Kevin Pitt, Miechelle L. Mckelvey, Kristy Weissling, Brynley Klein

Department of Special Education and Communication Disorders: Faculty Publications

Brain-Computer Interfaces (BCIs) provide access to augmentative and alternative communication devices by decoding an individual’s neurological activity. However, while BCI developments are progressing in the research setting, barriers still exist in the clinical setting. These must be overcome to support the successful translation of BCI technology into clinical practice which improves patient outcomes. Therefore, to help facilitate the clinical integration of BCI-AAC, our study sought to identify the perspectives of AAC professionals regarding their

Supporting The Visual-Cognitive Sciences By Exploring The Application Of Photographic Composition To Visual Scene Displays, Kevin Pitt, John Mccarthy, Adrienne R. Pitt

Department of Special Education and Communication Disorders: Faculty Publications

AAC systems may be accessed via techniques such as touch, eye gaze and switch scanning, which are then translated into communication output. Traditionally, aided AAC displays utilize a grid layout, arranging communication items in a decontextualized manner. In contrast, visual scene displays (VSDs) utilize context rich images (e.g., photographs) that depict events and activities, presenting communication items in a contextualized manner (e.g., a toy in a toy chest; Wilkinson, Light, & Drager, 2012). Recent research focusing on principles of the visual-cognitive sciences has found that even small changes in how we present communication items in a grid or VSD format …

Effect Of Pacifier Design On Nonnutritive Suck Maturation And Weight Gain In Preterm Infants: A Pilot Study, Alexander Ziegler, Jill L. Maron, Steven M. Barlow, Jonathan M. Davis

Department of Special Education and Communication Disorders: Faculty Publications

Background: Pacifiers are effective in promoting oral feeding by increasing the maturation of nonnutritive sucking to nutritive suck in preterm neonates. It is unclear whether pacifier design can influence suck dynamics and weight loss during the first week of life. Objectives: This pilot study examined the feasibility of studying the effect of pacifier design on suck maturation and weight loss in preterm neonates. Methods: Twenty-five preterm neonates (mean [SD] birth weight 1791 [344.9] grams, mean [SD] gestational age 33.1 [1.2] weeks) were studied in a single newborn intensive care unit. Neonates were assigned to either an orthodontic pacifier (n = …

Adhd Parent And Teacher Symptom Ratings: Differential Item Functioning Across Gender, Age, Race, And Ethnicity, George J. Dupaul, Qiong Fu, Arthur D. Anastopoulos, Robert C. Reid, Thomas J. Power

Department of Special Education and Communication Disorders: Faculty Publications

Parent and teacher ratings of the two attention-deficit/hyperactivity disorder (ADHD) symptom dimensions (i.e., inattention, hyperactivity-impulsivity) have been found to differ across child gender, age, race, and ethnicity. Group differences could be due to actual variation in symptomatic behaviors but also could be due to measurement items functioning differently based on child characteristics. This study extended prior investigations establishing measurement invariance at the symptom dimension and item levels, by examining possible measurement variance across child demographic characteristics at the item level (i.e., differential item functioning [DIF]) in two large national samples. Using the Rasch rating scale model (Andrich Psychometrika, 43, …

A Review Of Factors And Display Characteristics Influencing P300 Brain-Computer Interface Performance For Aac., Kevin Pitt

Department of Special Education and Communication Disorders: Faculty Publications

For individuals with amyotrophic lateral sclerosis (ALS), neurodegeneration can lead to a state of near-total paralysis, with intact cognition and sensation (Fried-Oken. et al., 2013). This loss of voluntary speech and motor system control (including oculomotor) can cause individuals with ALS to lose a reliable form of communication. Brain-computer interfaces for AAC (BCI-AAC) can provide a non-invasive link between an individual’s neurologic activity and a communicational device via electroencephalography (EEG), circumventing the necessity of reliable motor control for AAC access. Different BCI techniques may afford communication access through a range of techniques such as the P300 (including rapid serial visual …

Effects Of Sentence-Combining Instruction For Spanish-Speaking Language-Minority Students: Evidence From Two Single-Case Experiments, J. Marc Goodrich, Michael Hebert, Mackenzie E. Savaiano, Tim Andress

Department of Special Education and Communication Disorders: Faculty Publications

Research indicates that sentence-combining instruction is effective for improving writing outcomes; however, no studies to date have examined the effects of sentence- combining instruction on the writing skills of Spanish- speaking language-minority (LM) students. Therefore, the purpose of this study was to examine the effects of explicit sentence-combining instruction that focused on correct adjective use when used with Spanish-speaking LM students with poor sentence construction skills. Across two studies, seven Spanish-speaking LM children in third to fifth grade participated in sentence-combining inter- ventions designed to teach adjective placement. Results in- dicated that there was a functional relation between the in- …

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 …