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2009

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Articles 1 - 22 of 22

Full-Text Articles in Speech Pathology and Audiology

Chronic Subjective Dizziness (Csd) Vs. Conversion Disorder: Discussion Of Clinical Findings And Rehabilitation., Julie A. Honaker, Jane M. Gilbert, Jeffrey P. Staab Dec 2009

Chronic Subjective Dizziness (Csd) Vs. Conversion Disorder: Discussion Of Clinical Findings And Rehabilitation., Julie A. Honaker, Jane M. Gilbert, Jeffrey P. Staab

Department of Special Education and Communication Disorders: Faculty Publications

PURPOSE: Audiologists frequently encounter patients who complain of chronic dizziness or imbalance, in the absence of active vestibular or neurological deficits. Knowledge about conditions that cause this clinical presentation will allow audiologists to make important contributions to accurate diagnosis and effective management of these patients. This article reviews two such conditions, chronic subjective dizziness (CSD) and conversion disorder. METHOD: A case of CSD and another of conversion disorder are presented with a literature review of their clinical presentations, key diagnostic features, and treatment strategies. The role of the audiologist in assessing patients with these conditions and facilitating appropriate treatment referrals …


Modified Head Shake Computerized Dynamic Posturography, Julie A. Honaker, Connie M. Converse, Neil T. Shepard Dec 2009

Modified Head Shake Computerized Dynamic Posturography, Julie A. Honaker, Connie M. Converse, Neil T. Shepard

Department of Special Education and Communication Disorders: Faculty Publications

PURPOSE: Recent research on head shake posturography has demonstrated a modest increase in sensitivity to identifying peripheral vestibular system asymmetry when horizontal head movements were added to portions of the standard Sensory Organization Test (SOT) battery. However, limitations with respect to the head shake protocol were outlined, and usable data for assessing performance could not be established. The purpose of this study was to test a change in protocol for use of head shake SOT to address the noted limitations.
METHOD: Forty participants ranging in age from 20 to 79 years with no history of dizziness completed Conditions 2 and …


Talk To Me: Issues In Acquiring Spoken Language For Young Children With Autism Spectrum Disorders, Rhea Paul Nov 2009

Talk To Me: Issues In Acquiring Spoken Language For Young Children With Autism Spectrum Disorders, Rhea Paul

Communication Disorders Faculty Publications

Speech-language pathologists play a critical role in the treatment of children with autism spectrum disorders (ASD) because communication deficits are a primary component of both the diagnostic criteria and the focus of educational services for children with these conditions. Children with ASD almost always are delayed in speech acquisition (Tager-Flusberg, Paul, & Lord, 2005), as well as in other areas of communication. Lack of speech is often the most obvious symptom and greatest cause for concern of parents of toddlers who are eventually diagnosed with ASD, even though closer observation usually reveals additional problems.


Effects Of External Noise On Detection Of Intensity Increments, Walt Jesteadt, Kim Schairer, Lance Nizami, Samar Khaddam, Stephen T. Neely Sep 2009

Effects Of External Noise On Detection Of Intensity Increments, Walt Jesteadt, Kim Schairer, Lance Nizami, Samar Khaddam, Stephen T. Neely

Kim S. Schairer

The detection of an intensity increment in a longer duration sinusoid or pedestal is often used as a measure of intensity resolution, but the decision processes underlying this measure are poorly understood. Thresholds were obtained for detection of an increment in a 370-ms, 4-kHz pedestal in quiet or in noise to determine the relative contributions of background noise level and pedestal level, the effect of increment duration, and the effect of different noise spectra. Increment detection thresholds expressed in units of ΔL[10log(1+ΔI/I)] decreased as pedestal levels increased. At low pedestal levels, increment detection was limited …


Phonological Accuracy And Intelligibility In Connected Speech Of Boys With Fragile X Syndrome Or Down Syndrome, Elizabeth Barnes, Joanne Roberts, Steven Long, Gary E. Martin, Mary C. Berni, Kerry C. Mandulak, John Sideris Aug 2009

Phonological Accuracy And Intelligibility In Connected Speech Of Boys With Fragile X Syndrome Or Down Syndrome, Elizabeth Barnes, Joanne Roberts, Steven Long, Gary E. Martin, Mary C. Berni, Kerry C. Mandulak, John Sideris

Speech Pathology and Audiology Faculty Research and Publications

Purpose: To compare the phonological accuracy and speech intelligibility of boys with fragile X syndrome with autism spectrum disorder (FXS-ASD), fragile X syndrome only (FXS-O), Down syndrome (DS), and typically developing (TD) boys.

Method: Participants were 32 boys with FXS-O (3–14 years), 31 with FXS-ASD (5–15 years), 34 with DS (4–16 years), and 45 TD boys of similar nonverbal mental age. We used connected speech samples to compute measures of phonological accuracy, phonological process occurrence, and intelligibility.

Results: The boys with FXS, regardless of autism status, did not differ from TD boys on phonological accuracy and phonological …


Improving The Quality Of Early Hearing Detection And Intervention Services Through Physician Outreach, Karen F. Muñoz, L. Shisler, M. Moeller, K. White Aug 2009

Improving The Quality Of Early Hearing Detection And Intervention Services Through Physician Outreach, Karen F. Muñoz, L. Shisler, M. Moeller, K. White

Communicative Disorders and Deaf Education Faculty Publications

Physicians and other health-care providers should play a central role in helping families of children with permanent hearing loss receive timely and appropriate screening, diagnostic, and early intervention services. Because the technology and procedures for ensuring timely and appropriate services for infants and young children with hearing loss have changed so dramatically over the past 15 years, many health-care providers are not well informed about the best ways to provide effective services. Audiologists can help to ensure that physicians and other health-care providers are better informed about the services needed by infants and young children with hearing loss. This article …


The Assessment And Treatment Of Prosodic Disorders And Neurological Theories Of Prosody, Joshua J. Diehl, Rhea Paul Aug 2009

The Assessment And Treatment Of Prosodic Disorders And Neurological Theories Of Prosody, Joshua J. Diehl, Rhea Paul

Communication Disorders Faculty Publications

In this article, we comment on specific aspects of Peppe´ (Peppe´ , 2009). In particular, we address the assessment and treatment of prosody in clinical settings and discuss current theory on neurological models of prosody. We argue that in order for prosodic assessment instruments and treatment programs to be clinical effective, we need assessment instruments that: (1) have a representative normative comparison sample and strong psychometric properties; (2) are based on empirical information regarding the typical sequence of prosodic acquisition and are sensitive to developmental change; (3) meaningfully subcategorize various aspects of prosody; (4) use tasks that have ecological validity; …


Velopharyngeal Insufficiency: Diagnosis And Management, Robert J. Shprintzen, Eileen Marrinan Aug 2009

Velopharyngeal Insufficiency: Diagnosis And Management, Robert J. Shprintzen, Eileen Marrinan

Communication Disorders Faculty Publications

Journal articles relevant to the diagnosis and treatment of velopharyngeal insufficiency were reviewed. All studies ascertained by PubMed search were included. Recent findings: Studies reported on the application of magnetic resonance scanning, reliability tests of the International Working Group diagnostic protocol, the use of nasometry, and techniques designed to assess the function of the velopharyngeal mechanism. Treatment studies focused on outcomes in small samples of cases and complication rates from pharyngeal flap. One study discussed ineffective speech therapy procedures. Summary: There were relatively few studies this past year. Those that were published were hindered by small and heterogeneous sample sizes …


Defining Spoken Language Benchmarks And Selecting Measures Of Expressive Language Development For Young Children With Autism Spectrum Disorders, Helen Tager-Flusberg, Sally Rogers, Judith Cooper, Rebecca Landa, Catherine Lord, Rhea Paul, Mabel Rice, Carol Stoel-Gammon, Amy Wetherby, Paul Yoder Jun 2009

Defining Spoken Language Benchmarks And Selecting Measures Of Expressive Language Development For Young Children With Autism Spectrum Disorders, Helen Tager-Flusberg, Sally Rogers, Judith Cooper, Rebecca Landa, Catherine Lord, Rhea Paul, Mabel Rice, Carol Stoel-Gammon, Amy Wetherby, Paul Yoder

Communication Disorders Faculty Publications

Purpose: The aims of this article are twofold: (a) to offer a set of recommended measures that can be used for evaluating the efficacy of interventions that target spoken language acquisition as part of treatment research studies or for use in applied settings and (b) to propose and define a common terminology for describing levels of spoken language ability in the expressive modality and to set benchmarks for determining a child's language level in order to establish a framework for comparing outcomes across intervention studies.
Method: The National Institute on Deafness and Other Communication Disorders assembled a group of researchers …


The Effect Of Early Cochlear Implantation On Oral Language: A Review Of The Literature, Nicole Supplee Apr 2009

The Effect Of Early Cochlear Implantation On Oral Language: A Review Of The Literature, Nicole Supplee

Honors Theses

Current research suggests that implantation of cochlear implants before 2 years of age significantly impacts oral language development, specifically in increased rate of oral language development. In addition, children who have been implanted early (between 12 months and two years) have been shown to obtain age-appropriate language skills, whereas children who have been implanted later (after 2 years of age), or not implanted at all, do not. Because of the documented benefits of early implantation, researchers have recently pushed to lower the current minimum age of implantation to below 12 months of age. Although research suggests improvements in language development …


Velo-Cardio-Facial Syndrome, Doron Gothelf, Amos Frisch, Elena Michaelovsky, Abraham Weizman, Robert J. Shprintzen Apr 2009

Velo-Cardio-Facial Syndrome, Doron Gothelf, Amos Frisch, Elena Michaelovsky, Abraham Weizman, Robert J. Shprintzen

Communication Disorders Faculty Publications

Velocardiofacial syndrome (VCFS), also known as DiGeorge, conotruncal anomaly face, and Cayler syndromes, is caused by a microdeletion in the long arm of Chromosome 22. We review the history of the syndrome from the first clinical reports almost half a century ago to the current intriguing molecular findings associating genes from the microdeletion region and the physical and neuropsychiatric phenotype of the syndrome. Velocardiofacial syndrome has a wide spectrum of more than 200 physical manifestations including palate and cardiac anomalies. Yet, the most challenging manifestations of VCFS are the learning disabilities and neuropsychiatric disorders. As VCFS is relatively common and …


Normative Data For Neurodiagnostic Auditory Brainstem Response Testing (Abr), David Alan Ness Apr 2009

Normative Data For Neurodiagnostic Auditory Brainstem Response Testing (Abr), David Alan Ness

Doctoral Dissertations

Auditory Brainstem Response (ABR) tests are procedures routinely performed to assess auditory function from the peripheral auditory system to the level of the lower brainstem. The ABR is used as a neurodiagnostic tool to detect retrocochlear pathologies of the auditory system, such as space occupying lesions, tumors, auditory neuropathy, and multiple sclerosis that effect the structures located above the level of the cochlea.

An ABR consists of eliciting and recording waveforms. These waveform recordings elicited are compared to normative data to determine normal versus abnormal (retrocochlear lesion) responses. Generalized normative data is available for ABR test results; however, research states …


Sound Pressure Levels Within The Ear Canal Of Ipod Users, Lawrence E. Bridge Apr 2009

Sound Pressure Levels Within The Ear Canal Of Ipod Users, Lawrence E. Bridge

Doctoral Dissertations

Portable listening devices, specifically iPods are becoming more and more popular among teens and young adults. According to Apple's quarterly financial results in March 2008, total iPod sales reached close to 152,000,000 since their release in January 2001 (Apple, 2008). Because nearly 15 million individuals suffer from noise induced hearing loss, listening levels of individuals using iPods are of main concern to audiologists. The purpose of this dissertation is to determine (1) average listening levels of males and females, as well as experienced and inexperienced iPod users and (2) if a certain groups of individuals are at more of a …


How Can A Video Game Cause Panic Attacks? 1. Effects Of An Auditory Stressor On The Human Brainstem, Judith Lauter, Elizabeth Mathukutty, Brandon Scott Jan 2009

How Can A Video Game Cause Panic Attacks? 1. Effects Of An Auditory Stressor On The Human Brainstem, Judith Lauter, Elizabeth Mathukutty, Brandon Scott

Faculty Publications

The auditory brainstem response (ABR) was recorded during simultaneous binaural presentation of two types of sounds: 1) condensation clicks presented through in-the-ear earphones at 43.1/sec, 60dB nHL; and 2) recordings of breathing sounds, presented through supra-aural headphones, at levels adjusted by participants to be equivalent to the clicks. In alternate blocks, the breathing sounds were either: 1) a recording of quiet breathing (blocks 1, 3, 5); or 2) a recording of erratic (stressed) breathing (blocks 2, 4). The erratic breathing was modeled on a video game soundtrack in which the character was represented as running, wounded, and frightened. Four 2048-sweep …


Novel Word Learning Of Children With Hearing Impairment And Children With Typical Hearing, Matthew R. Clark Jan 2009

Novel Word Learning Of Children With Hearing Impairment And Children With Typical Hearing, Matthew R. Clark

Theses, Dissertations and Capstones

Children with hearing impairment may be at risk for reading difficulty due, in part, to delayed vocabulary development. However, advances in amplification technology, most notably cochlear implant technology, make it possible for children with profound hearing loss to acquire oral language. This study asked if novel word learning differed between children with typical hearing and those with severe to profound hearing loss who either wore hearing aids or had cochlear implants. Children learned nonsense words as names for Beanie Babies during a play scenario and were later asked to identify and name each Beanie Baby using its correct nonsense word …


Degree Of Vocal Handicap In Two Age Groups Of Individuals, Whitney N. Casey-Heatherman Jan 2009

Degree Of Vocal Handicap In Two Age Groups Of Individuals, Whitney N. Casey-Heatherman

Theses, Dissertations and Capstones

A healthy, functional voice is a critical aspect of daily life, allowing the expression of basic needs as well as interaction within an individual’s community. Unfortunately, for many adults the voice declines in later life. The purpose of this study was to investigate how normal vocal aging affects the quality of life of the elderly. Two hundred two adults without voice disorders from two age groups (30-50 and 65-85) completed the Voice Handicap Index. Results indicated that the older group felt a greater degree of vocal handicap than the younger age group [F (1,156) = 4.944, p = 0.028]. Implications …


A Model For Electrical Communication Between Cochlear Implants And The Brain, Douglas A. Miller Jan 2009

A Model For Electrical Communication Between Cochlear Implants And The Brain, Douglas A. Miller

Electronic Theses and Dissertations

In the last thirty years, cochlear implants have become an invaluable instrument in the treatment of severe-to-profound hearing impairment. An important aspect of research in the continued development of cochlear implants is the in vivo assessment of signal processing algorithms intended to improve perception of speech and other auditory signals. In trying to determine how closely cochlear implant recipients process sound relative to the processing done by a normal auditory system, various assessment techniques have been applied. The most common technique has been measurement of auditory evoked potentials (AEPs), which involves the recording of neural responses to auditory stimulation. Depending …


Health Prognisis Of Electronics Via Power Profiling, Jonathan Amilcar Cervantes Jan 2009

Health Prognisis Of Electronics Via Power Profiling, Jonathan Amilcar Cervantes

Open Access Theses & Dissertations

The objective of this research is to investigate a new approach for the early detection of latent defects in electronic devices in the field. Reliability is assessed through the non-traditional approach of recording and evaluating the power profile of electronic devices within a deterministic state of operation. Traditionally, measuring the quiescent current (Iddq) of a device has been employed in manufacturing tests to detect defective parts prior to deployment to the field. However, the monitoring of the deterministic power signature (i.e. boot up or during a self-test routine) has never been exploited to monitor the health of a device in …


Fukuda Stepping Test: Sensitivity And Specificity, Julie A. Honaker, Neil T. Shepard Jan 2009

Fukuda Stepping Test: Sensitivity And Specificity, Julie A. Honaker, Neil T. Shepard

Department of Special Education and Communication Disorders: Faculty Publications

Background: A vestibulospinal test known as the Fukuda Stepping Test (FST) has been suggested to be a measure of asymmetrical labyrinthine function. However, an extensive review of the performance of this test to identify a peripheral vestibular lesion has not been reported.
Purpose: The purpose of this study was to evaluate the sensitivity and specificity of the standard FST and a head shaking variation for identification of a peripheral vestibular system lesion.
Research Design: In this retrospective review, we compared performance on the FST with and without a head shaking component to Electronystagmography (ENG) caloric irrigation unilateral weakness results.
Study …


Spectral Analysis Of Pathological Acoustic Speech Waveforms, Priyanka Medida Jan 2009

Spectral Analysis Of Pathological Acoustic Speech Waveforms, Priyanka Medida

UNLV Theses, Dissertations, Professional Papers, and Capstones

Biomedical engineering is the application of engineering principles and techniques to the medical field. The design and problem solving skills of engineering are combined with medical and biological science, which improves medical disorder diagnosis and treatment. The purpose of this study is to develop an automated procedure for detecting excessive jitter in speech signals, which is useful for differentiating normal from pathologic speech. The fundamental motivation for this research is that tools are needed by speech pathologists and laryngologists for use in the early detection and treatment of laryngeal disorders. Acoustical analysis of speech was performed to analyze various features …


The Development Of A Universal Tangible Symbol System, Ellen Trief, Susan M. Bruce, Paul W. Cascella, Sarah Ivy Jan 2009

The Development Of A Universal Tangible Symbol System, Ellen Trief, Susan M. Bruce, Paul W. Cascella, Sarah Ivy

Paul Cascella

Tangible symbols are objects or partial objects with qualities, such as shape, texture, and consistency, that can be used to represent a person, place, object, activity, or concept. They can be handled and share a perceptual relationship with what they represent, known as the referent. This article presents a study on the development of a universal tangible symbol system. The purpose of this study was to identify a set of standardized tangible symbols from which educational teams could select the most appropriate symbols for the children they serve.


Use Of Stimulus-Frequency Otoacoustic Emissions To Investigate Efferent And Cochlear Contributions To Temporal Overshoot, Douglas H. Keefe, Kim Schairer, John C. Ellison, Denis F. Fitzpatrick, Walt Jesteadt Dec 2008

Use Of Stimulus-Frequency Otoacoustic Emissions To Investigate Efferent And Cochlear Contributions To Temporal Overshoot, Douglas H. Keefe, Kim Schairer, John C. Ellison, Denis F. Fitzpatrick, Walt Jesteadt

Kim S. Schairer

Behavioral threshold for a tone burst presented in a long-duration noise masker decreases as the onset of the tone burst is delayed relative to masker onset. The threshold difference between detection of early- and late-onset tone bursts is called overshoot. Although the underlying mechanisms are unclear, one hypothesis is that overshoot occurs due to efferent suppression of cochlear nonlinearity [von Klitzing, R., and Kohlrausch, A. (1994). J. Acoust. Soc. Am.95, 2192–2201]. This hypothesis was tested by using overshoot conditions to elicit stimulus-frequency otoacoustic emissions (SFOAEs), which provide a physiological measure of cochlear nonlinearity. SFOAE and behavioral thresholds were estimated using …