Speech Pathology and Audiology Commons^™

Identification Of Opportunity Barriers And Supports For Individuals Using Augmentative And Alternative Communication (Aac) And Stakeholders, Meredith K. Gohsman

Rehabilitation Sciences Theses & Dissertations

Individuals using augmentative and alternative communication (AAC) are supported by many AAC stakeholders and communication partners. Clinical decision making and AAC assessment models consider the capabilities and access needs of the individual using AAC, as well as opportunity barriers and supports imposed by communication partners and environments. The purpose of this research was to investigate opportunity barriers and supports identified by two critical AAC stakeholders: speechlanguage pathologists and caregivers. The first study investigated characteristics of AAC service provision reported by post-professional speech-language pathologists. Speech-language pathologists reported lack of perceived knowledge related to AAC service delivery, inconsistent use of AAC modalities, …

Comparison Of Motor-Enhanced And Visual-Enhanced Interventions For Grammar In Young Children With Developmental Language Disorder, Alisha P. Springle

Communication Disorders & Special Education Theses & Dissertations

Up to 7.6% of children demonstrate a developmental language disorder (DLD), which can persist through adulthood, causing difficulty with academic achievement, social relationships, and financial stability. Grammar development, as a hallmark of DLD, is an important area of need for these children. Existing grammar interventions do not clearly distinguish the sensory input techniques that meet these children’s neurobiological instructional needs. This adapted alternating treatment design study implemented intervention using systematic paired visual and verbal and systematic paired motor, i.e. standardized gestures, and verbal sensory input techniques. A moderate-strong functional relation between intervention techniques using motor supports on grammatical outcomes in …

Predicting Speech-Language Pathology Graduate Student Success: Executive Functions And Standardized Admission Tests, Jane E. Roitsch

Communication Disorders & Special Education Theses & Dissertations

Within the next three years, the number of available speech-language pathology (SLP) jobs is projected to increase by 18% (Bureau of Labor Statistics, 2018). The most logical response to the escalating market demand would be to increase the number of students admitted into SLP graduate programs. However, this may not be as simple as it sounds.

Successful training of graduate SLP clinicians requires the professional, emotional, financial, and time commitments of the program’s clinical and academic faculty. The accreditation status of graduate SLP programs is based in part on graduation completion rates and students passing the national examination in SLP, …

Impact Of Noise And Working Memory On Speech Processing In Adults With And Without Adhd, Anne M. P. Michalek

Communication Disorders & Special Education Theses & Dissertations

Auditory processing of speech is influenced by internal (i.e., attention, working memory) and external factors (i.e., background noise, visual information). This study examined the interplay among these factors in individuals with and without ADHD. All participants completed a listening in noise task, two working memory capacity tasks, and two short-term memory tasks. The listening in noise task had both an auditory and an audiovisual condition. Participants included 38 young adults between the ages of 18-35 without ADHD and 25 young adults between the ages of 18-35 with ADHD. Results indicated that diagnosis, modality, and signal-to-noise ratio all have a main …

The Effects Of Occupational Ultrasonic Noise Exposure On Hearing In Dental Hygienists: A Pilot Study, Jennifer S. Dunning

Dental Hygiene Theses & Dissertations

The purpose of this case-control study was to determine whether long-term ultrasonic noise exposure via the dental office environment is related to dental hygienists' hearing status. Registered dental hygienists (N = 698) who live in the Hampton Roads area were mailed a Dental Hygiene Work History Questionnaireto determine those meeting the inclusion criteria and willing to participate in the study. Consenting subjects were categorized into one of two groups according to ultrasonic scaler usage rate and matched on age. Persons with known hearing loss due to infection, disease, or congenital defect were excluded from the study. The final sample …

Signal Modeling With Non-Uniform Time Sampling Of Features For Automatic Speech Recognition, Montri Karnjanadecha

Electrical & Computer Engineering Theses & Dissertations

This dissertation presents an investigation of non-uniform time sampling methods for spectral/temporal feature extraction in speech. Frame-based features were computed based on an encoding of the global spectral shape using a Discrete Cosine Transform. In most current “standard” methods, trajectory (dynamic) features are determined from frame-based parameters using a fixed time sampling, i.e., fixed block length and fixed block spacing. In this research, new methods are proposed and investigated in which block length and/or block spacing are variable. The idea was initially tested with HMM-based isolated word recognition, and a significant performance improvement resulted when a variable block length and …