Communication Sciences and Disorders Commons^™

Skill Acquisition In Skin Cancer Detection, Craig Speelman, Katie Martin, Steven Flower, Terry Simpson

Research outputs pre 2011

Previous research has shown that the ability to detect potentially dangerous skin lesions is not improved by viewing a pamphlet describing the characteristic features of such lesions. A different approach to improving this skill was investigated in this study. 100 student recruits were tested to investigate the effect of practice at distinguishing between dangerous and nondangerous skin lesions. Around 30 minutes of such practice, viewing 360 pictures of skin lesions, provided a significant advantage in making decisions about a target set of dangerous and nondangerous lesions, compared to no practice or practice with a filler task. Viewing a skin cancer …

Out Of The Mouths Of Babes: Prelinguistic Vocalizations In Infants At Risk For Autism Spectrum Disorders, Rhea Paul, Katyrzyna Chawarska, Yael Fuerst, Lauren Berkovits, Ami Klin

Communication Disorders Faculty Publications

Aims: To examine vocal production in infants at high risk for ASD due to the presence of an older sibling with ASD, To document changes in vocal behavior over the first year of life, To compare vocal behavior at 6, 9, and 12 months in children at high and low risk, To examine the relations between vocal behavior in the first year and outcome at 24 mo.

Vocal Warm-Up Practices And Perceptions In Vocalists: A Pilot Survey, Allison Kimberly Gish

LSU Master's Theses

Vocal warm-up exercises are believed to contribute to the prevention of vocal fold injury in professional voice users. Professional singers and students of singing consider a regular vocal warm-up regimen essential. There is conflicting information in the vocal pedagogy literature about the most effective and widely used vocal warm-up exercises and the optimal frequency and duration of vocal warm-up sessions. The goal of this current study was to investigate the characteristics of vocal warm-up regimens in the singing community using a survey. One hundred seventeen participants completed the survey. Participants included voice students from undergraduate, masters, and doctoral music programs …

Parent Report Of Home Literacy Experiences In Children With And Without Speech And Language Impairments, Amanda Blair Grace

LSU Master's Theses

The purpose of this study was to evaluate caregivers’ perceptions of their children’s literacy experiences and determine if their perceptions differed as a function of whether their children presented with speech and language impairment or with typical language development. Participants were caregivers of children, between the ages of 24 and 54 months. Eleven children presented with speech and language impairments (S/LI) and 14 children presented with typically developing (TD) language. Caregivers’ perceptions about early home literacy experiences were collected through a questionnaire. Results showed that there were no statistically significant differences between the two groups of caregivers’ responses to the …

Treatment Effect Of Maximum Performance Speech Therapy For Individuals With Parkinson's Disease And Dysarthria, Heidi Huckabee Michiels

LSU Master's Theses

The Lee Silverman Voice Treatment (LSVT™) has received much attention in the past decade for its use in the treatment of individuals with Parkinson’s disease (Jones, 2005; Ramig, Countryman, O'Brien, Hoehn, & Thompson, 1996; Ramig, Sapir, Countryman et al., 2001; Wohlert, 2004). This intensive program requires therapy four times a week for four weeks in order to improve perceptual characteristics of the voice, such as loudness. However, since LSVT™ was introduced, the rehabilitation industry has experienced systematic reductions in allowable frequency and duration of covered services. The result has been that individuals often cannot qualify for the rigorous LSVT™ protocol …

Coherence In Stories Told By Adults With Aphasia, Heather Harris Wright, Anthony Koutsoftas, Gerasimos Fergadiotis, Gilson Capilouto

Speech and Hearing Sciences Faculty Publications and Presentations

Discourse coherence is the conceptual organization of discourse and it can be subdivided into two types: global and local. Of interest for the current study is global coherence; that is, how the discourse relates to the overall topic (Glosser & Deser, 1990). Coherence has been measured in persons with aphasia (PWA) using different elicitation tasks (e.g., recounts, story retelling, event-casts) and different scoring methods (ie., rating scales, coherence, violations, total counts) and results have varied across studies (Christianson, 1995; Coelho & Flewellyn, 2003; Glosser & Deser, 1990; Ulatowska, et al., 2004). These differences may reflect differences in how coherence is …

Child Acquisition Of Referring Expressions, Carlton M. Downey

LSU Doctoral Dissertations

Children, like adults, use referring expressions to refer to specific objects, events, or people. Research has provided insights into how children use referring expressions and the appearance of forms developmentally (Radford, 1990; Abu-Akel, et al., 2004; Pine & Lieven, 1997). This study examined how three, four, and five year-old children use referring expressions across increasingly more decontextualized tasks as defined by the Situational-Discourse-Semantic (SDS) Model (Norris & Hoffman, 1993, 2002) . The participants included 4 three-year-old, 12 four-year-old, and 20 five-year-old children. Language samples were elicited using seven tasks of increasing difficulty. The referring expressions produced for each task were …

Communicative Competence In Persons With Aphasia: The Impact Of Executive Function, Judy Marie Mikola

Wayne State University Dissertations

The purpose of this study was to examine the relationship between executive function and performance on selected linguistic tasks in persons with aphasia secondary to left frontal lesions.

A group of 15 persons with aphasia (PWA) completed three communication board tasks of varying levels of complexity and structure. The subject's functional use of the picture/word communication board was tested during a Story Retelling task. In addition, the PWA's executive function skills were examined using six nonverbal tests. The PWA group performance scores were compared to that of the neurologically healthy control group.

Results demonstrated that the control group performed significantly …

Effect Of Prolonged Pacifier Use On Speech Articulation, Danielle Laprairie

Masters Theses

The hypothesis of the current research study was that children who frequently use pacifiers past the age of 2 years would display more articulation errors and patterns than children with limited or no pacifier use. The specific research question was whether there was a difference in articulation errors between children who used a pacifier and children who did not use a pacifier for a prolonged duration and frequency. Experimental subjects included seven children who had used a pacifier for at least 2 years and who were either currently using a pacifier or who had discontinued using a pacifier within 6 …

A Survey Of Variables Influencing Speech-Language Pathologists' Use Of Evidence-Based Practice In Clinical Settings, Ailbhe Tressan Cormack

Open Access Theses & Dissertations

Although the need for evidence-based practice (EBP) in speech-language pathology has been well attested, multiple barriers hamper its implementation. Purpose: The purpose of this study was to compare variables influencing the use of EBP by practicing speech-language pathologists (SLPs). Method: Eighty-five SLPs based out of different primary work settings in El Paso, Texas responded to a survey addressing: 1. attitudes and perceived barriers toward EBP, 2. exposure to EBP, research methodology and statistics in graduate courses, 3. time in practice, 4. practice setting(s), 5. amount and nature of support for EBP in work settings, and 6. use of research literature …

Perception And Identification Of Voice Disorders: A Comparison Study Between Hispanic And Non-Hispanics, Jacqueline Nicole Lopez

Open Access Theses & Dissertations

The extent of public education in the Hispanic population regarding voice disorders has been unidentified thus far, motivating the current study to assess knowledge and perception of functional and organic voice disorders among Hispanic individuals in the El Paso region. The project involved an experimental research design to investigate whether demographic variables influenced the accuracy of knowledge of voice disorders in the general population residing in the Greater El Paso Region. Results indicate that the majority of the participants perceive articulation, fluency, and voice disorders as interchangeable and are unaware of the role of medical and rehabilitation professionals in the …

Investigation Of A Classroom-Based Reading Intervention Strategy For Older Elementary Students With Poor Decoding Skills, Shara Brinkley

LSU Doctoral Dissertations

Using a response to intervention framework, this study investigates the efficacy of a classroom-based intervention for struggling readers with decoding deficits in the upper elementary grades. Twenty two students in the fourth and sixth grades from four classrooms in low-performing schools received either a short 20-minute intervention delivered by their teacher or access to the lessons for an equivalent amount of time but no teacher instruction. Using three orthographic patterns, the 24 lessons consisted of a series of ten minimally contrasted words differing by one letter. The students in the experimental group decoded the words using a visual alphabet (Phonic …

The Auxiliary System Of Typically Developing Children Acquiring African American English, Brandi Lynette Newkirk

LSU Doctoral Dissertations

This study’s purpose was to examine the acquisition and use of BE, DO, and modal auxiliaries by African American English (AAE)-speaking children. The impetus for this work was the lack of information regarding the developmental trajectory of these auxiliary types and their use, in AAE relative to what is known about auxiliary acquisition and use in Mainstream American English (MAE). The study used two datasets of language samples: one that contained 48 language samples from 3 ½-year-old children and one that contained 36 longitudinal language samples of five children who were between 18 and 51 months of age. Results from …

Behaviors And Beliefs Of African American Caregivers As Related To Their Children's Language-Literacy Development, Lekeitha Renee' Morris

LSU Doctoral Dissertations

This study examined African American (AA) caregivers’ beliefs about their children’s language-literacy development and their book reading behaviors with their children as a function of socioeconomic status (SES). Caregivers’ behaviors were examined before, during, and after a three-day caregiver training program that targeted four behaviors (i.e., tracking print, reference to print, text to life, and interpretations). Participants were 20 caregiver-child dyads classified as Low-SES (LSES) or Middle-SES (MSES) based on the caregivers’ level of education. Children were typically developing girls between the ages of four and five years. At pre-test, the two groups of caregivers differed in some of their …

The Effects Of Aging And Unilateral Vestibular Disorders On The Kinematic Performance Of Vestibular Rehabilitation Exercises And Physical Function, Micah Leslie Bradshaw Klumpp

LSU Doctoral Dissertations

The overall purpose of this study was to evaluate the effects of unilateral vestibular disorders and aging on functional performances of activities of daily living and vestibular rehabilitation exercises by examining the correlations among actual and perceived functional measures, the kinematic measurement differences among young healthy adults, older healthy adults, and older adults with unilateral vestibular deficits, and the correlations between kinematic and functional measures. Perceived and actual functional abilities and kinematic variables were compared for young controls, older healthy controls, and patients with unilateral vestibular hypofunction with no previous vestibular rehabilitation. In older adults, better strength, balance, coordination, and …

Iowa Conference On Communicative Disorders [Program, 2010], Iowa Conference On Communicative Disorders

Iowa Conference on Communicative Disorders Programs

The Iowa Conference on Communicative Disorders provides continuing education activities in speech- language pathology that are acceptable to the State of Iowa and the American Speech-Language and Hearing Association. Areas of emphasis include adults and pediatrics.

Bidirectional Interference Between Speech And Postural Stability In Individuals With Parkinson's Disease, Christopher Dromey, Eon Jarvis, Stuart Sondrup, Shawn Nissen, K. Bo Foreman, Leland E. Dibble

Faculty Publications

Because people frequently talk while engaged in other activities, and because Parkinson's disease (PD) is known to diminish multi-tasking performance, we examined dual task interference between speaking and postural stability in 9 individuals with PD, 7 age-matched and 10 healthy young controls. Participants repeated a target utterance and performed a rise to toes task in both single and dual task conditions. Diphthong transitions were measured from audio recordings and postural variables reflecting planning, coordination, and stability were derived from a multi-camera motion capture system and force plate recordings. Thus, sensitive measures of both control groups for the isolated postural task, …

Age Effect On The Gaze Stabilization Test, Julie A. Honaker

Department of Special Education and Communication Disorders: Faculty Publications

Impairments of the vestibular-ocular reflex (VOR) lead to a decline in visual acuity during head movements. Dynamic visual acuity (DVA) testing is a sensitive assessment tool for detecting VOR impairments. DVA evaluates accuracy of visual acuity during fixed velocity head movements. In contrast, the Gaze Stabilization test (GST) is a new functional evaluation of the VOR that identifies a person’s maximum head velocity (in degrees per second) a person can maintain with stable vision of a target (i.e. optotype). The objective of this study was to evaluate the effect of age on the GST in participants without vestibular disease. The …

Vowel Recognition From Continuous Articulatory Movements For Speaker-Dependent Applications, Jun Wang, Jordan R. Green, Ashok Samal, Tom D. Carrell

Department of Special Education and Communication Disorders: Faculty Publications

A novel approach was developed to recognize vowels from continuous tongue and lip movements. Vowels were classified based on movement patterns (rather than on derived articulatory features, e.g., lip opening) using a machine learning approach. Recognition accuracy on a single-speaker dataset was 94.02% with a very short latency. Recognition accuracy was better for high vowels than for low vowels. This finding parallels previous empirical findings on tongue movements during vowels. The recognition algorithm was then used to drive an articulation-to-acoustics synthesizer. The synthesizer recognizes vowels from continuous input stream of tongue and lip movements and plays the corresponding sound samples …

Discrimination Of Tone Contrasts In Mandarin Disyllables By Naïve American English Listeners, Shari Salzhauer Berkowitz

Dissertations, Theses, and Capstone Projects

The present study examined the perception of Mandarin disyllabic tones by inexperienced American English speakers. Participants heard two naturally-produced Mandarin disyllables, and indicated if the two were the same or different. A small native Mandarin-speaking control group participated as well. All 21 possible Mandarin contrasts where the initial syllable varied but the final syllable stayed the same were tested. Acoustic analysis was performed on the stimuli under study. Mandarin subjects scored at ceiling on all contrasts. American English subjects performed poorly on contrasts where the difference in mean F0 was small, or where the difference in the offset F0 of …