- Neurobiology of Language and Bilingualism
- Voice and Speech Disorders
- Reading and Literacy Development
- Dysphagia Assessment and Management
- Language Development and Disorders
- Stuttering Research and Treatment
- Phonetics and Phonology Research
- Parkinson's Disease Mechanisms and Treatments
- Neurological disorders and treatments
- Stroke Rehabilitation and Recovery
- Cerebral Palsy and Movement Disorders
- Assistive Technology in Communication and Mobility
- EEG and Brain-Computer Interfaces
- Music Therapy and Health
- Hearing Loss and Rehabilitation
- Second Language Acquisition and Learning
- Neural and Behavioral Psychology Studies
- Balance, Gait, and Falls Prevention
- Infant Health and Development
- Hearing Impairment and Communication
- Dementia and Cognitive Impairment Research
- Acute Ischemic Stroke Management
- Writing and Handwriting Education
- Cognitive Functions and Memory
- Clinical practice guidelines implementation
University of Washington
2016-2025
Google (United States)
1995-2024
Seattle University
2002-2016
University of Utah
2001
VA Pittsburgh Healthcare System
1998
Veterans Health Administration
1997
Abstract The effects of two cueing treatments for lexical retrieval were examined with three aphasic speakers who demonstrated different levels processing impairment (i.e., predominately semantic, phonologic, and mixed semantic-phonologic). Each speaker received both treatments, being applied sequentially to word lists in a multiple baseline design. Both consisted prestimulation phase followed by the application response-contingent hierarchy. One treatment employed semantic-level cueing,...
Measuring communicative informativeness under conversational discourse conditions is perhaps the most valid means of determining interpersonal verbal communication abilities adults with aphasia. Nevertheless, data derived from such analyses are expensive to collect and subject unknown sources variability. In this study, samples connected were obtained 20 subjects aphasia structured sampling determine extent which they related on measures informativeness. Results revealed that produced...
Although aphasia rehabilitation has been shown to be efficacious, many questions remain regarding how best deliver treatment maximize functional gains for persons with aphasia. Treatment delivery variables, such as intensity and dosage, are likely influence both behavioral structural changes during anomia treatment. While numerous protocols have concluded that positively impacts outcomes, few studies date examined the role dose plays in patient outcomes treatment.This study sought...
The integrity of selective attention in people with aphasia (PWA) is currently unknown. Selective essential for everyday communication, and inhibition an important part attention. This study explored components inhibition-both intentional reactive inhibition-during spoken-word production PWA controls who were neurologically healthy (HC). Intentional the ability to suppress a response interference, delayed reactivation previously suppressed item.Nineteen 20 age- education-matched HC...
Abstract This study investigated whether measures of verbal productivity, disruption, information content, grammatical complexity, and well formedness would vary as a function experimental conditions in which the presence pictured stimuli was manipulated during oral presentation retelling stories. Fifteen adults with aphasia retold stories under three : (i) concurrent versions followed by picture-supported retell, (ii) 'free' (iii) orally presented free retell. Group analyses revealed no...
In speech-language pathology, there is increasing attention on participation-focused interventions to optimize participation in valued life roles. The purpose of this study was investigate how pathologists (SLPs) the United States address therapy programs, as well their opinions regarding barriers and facilitators intervention.An online questionnaire presented case scenarios for aphasia, dysarthria, laryngectomy 66 SLPs who have worked with adults. were asked write goals describe activities...
Purpose The primary characteristics used to define acquired apraxia of speech (AOS) have evolved better reflect a disorder motor planning/programming. However, there is debate regarding the feature relatively consistent error location and type. Method Ten individuals with AOS aphasia 11 without participated in this study. In context 2-group experimental design, consistency was examined via 5 repetitions 30 multisyllabic words. influence rate, severity impairment, stimulus presentation...
The purpose of this study was to explore what speech-language pathologists (SLPs) who are AAC specialists see as advantages and disadvantages providing services via telehealth, how well tele-AAC assessments align with guidelines for in-person assessments, SLPs' perspectives changed post-COVID. Fifteen SLPs experienced working people amyotrophic lateral sclerosis watched videos speech generating device (SGD) conducted telehealth eight sclerosis. Using a checklist based on the Clinical...
Abstract This study reports the development and validation of four parallel forms a story retelling procedure. The equivalency was based on performance 15 adults with aphasia 12 operationally defined productive language variables including measures (a) verbal productivity, (b) information content, (c) grammatical well-formedness, (d) phoneme production, (e) disruptions. results revealed no significant differences among test for any dependent measures, strong, positive correlations 11...
Abstract This investigation replicated and extended an earlier study of naming disorders (McNeil et al. 1995) by administering a placebo pharmacological agents (d-amphetamine selegiline) in the presence absence behavioural intervention termed lexical-semantic activation inhibition therapy (L-SAIT) to examine their effects on performance two adults with stroke-induced aphasia. Results revealed acquisition maintenance L-SAIT targeted lexical items, no or active L-SAIT, differential between +...
Cognitive impairment is one of the most debilitating nonmotor symptoms in Parkinson disease (PD), and its presentation heterogeneous. One proposed model to explain cognitive variability PD dual-syndrome hypothesis. This hypothesis delineates two profiles, a "fronto-striatal" profile "posterior cortical" according symptom presentation, associated motor phenotype, risk for dementia. The current study examined individuals with idiopathic evaluate existence these determine association phenotype...
Abstract Background The speech characteristics of ataxic dysarthria are known to be quite diverse. varied presentation this challenges researchers and clinicians alike, brings into question whether it is a single entity. While the possibility subtypes has been suggested, nature these putative groups remains unclear. Aims purpose pilot study was determine if perceptual would align with pattern unusual variability or consistency across subsystems speaking tasks. Methods & Procedures A...
Purpose The purpose of this study was to examine the effects an internally versus externally cued speech task on perceived understandability and naturalness in speakers with Parkinson's disease (PD) cerebellar (CD). Method Sentences extracted from a covertly recorded conversation (internally cued) were compared same sentences read aloud (externally by PD clinical comparison group CD. Experienced listeners rated samples using visual analog scale for perceptual dimensions naturalness. Results...
This study investigated the relationship between non-orthographic language abilities and reading in order to examine assumptions of primary systems hypothesis further our understanding processing poststroke.Performance on semantic, phonologic, syntactic tasks, as well oral comprehension was assessed 43 individuals with aphasia. Correlation regression analyses were conducted determine these measures. In addition, variance examined differences within groups (within normal limits, phonological,...
Abstract A study by McNeil et al. reported no generalization effects in two individuals with aphasia following application of a word finding treatment which subjects were trained sequentially on lexical items arranged form class. The present investigation examined, one the from original study, whether training variety classes concurrently would result greater response than was observed previously this subject. Results replicated earlier findings positive acquisition and maintenance little...
A theory-driven treatment was designed to facilitate access the impaired output lexicons of a 47-year-old woman with aphasia resulting from left parietal haemorrhage. In context multiple-baseline design, lists rhymed word pairs four semantic categories were trained using systematic cueing hierarchy. Performance measures based on subject's generation targeted words, verbally and in writing, when presented rhyme target. Results demonstrated positive acquisition, generalization maintenance...
Purpose This study explored the relationship between anomia and verbal short-term memory (STM) in context of an interactive activation language processing model. Method Twenty-four individuals with aphasia reduced STM spans (i.e., impaired immediate serial recall words) completed a picture-naming task word pair repetition (a measure STM). Correlations retrieval errors made on were examined. Results A significant positive correlation naming accuracy span length was found. More intricate...