- Neurobiology of Language and Bilingualism
- Language Development and Disorders
- Reading and Literacy Development
- EEG and Brain-Computer Interfaces
- Phonetics and Phonology Research
- Action Observation and Synchronization
- Hearing Loss and Rehabilitation
- Multisensory perception and integration
- Stroke Rehabilitation and Recovery
- Hearing Impairment and Communication
- Stuttering Research and Treatment
- Voice and Speech Disorders
- Neural and Behavioral Psychology Studies
- Dementia and Cognitive Impairment Research
- Tactile and Sensory Interactions
- Neuroscience and Music Perception
- Second Language Acquisition and Learning
- Motor Control and Adaptation
- Language, Metaphor, and Cognition
- Spatial Neglect and Hemispheric Dysfunction
- Dysphagia Assessment and Management
- Writing and Handwriting Education
- Text Readability and Simplification
- Syntax, Semantics, Linguistic Variation
- Child Nutrition and Feeding Issues
University of Pittsburgh
2014-2025
Geriatric Research Education and Clinical Center
2004-2025
VA Pittsburgh Healthcare System
2009-2023
Google (United States)
1975-2015
Cybercommunication Academic Society
2012
United States Department of Veterans Affairs
1975-2010
University of Pittsburgh Medical Center
2005
University of Florida
2005
University of Wisconsin–Madison
1982-2004
National Chung Cheng University
1993
Abstract Theoretical and philosophical issues related to the need for criteria of a formal definition aphasia are discussed. Following review several definitions contrast two, is advanced that meets specific requirements scientific definition: group membership assumed mechanisms these criteria. The discussed presented. It argued this (or well justified alternative) can serve as first approximation general theory aphasia. also claimed it inform research consumer about important but unstated...
Narrow phonetic transcriptions and prosodic judgments were made of single-word imitations by apraxic (AOS), conduction aphasic (CA), ataxic dysarthric (AD) speakers. AOS AD subjects showed similar vowel error patterns, particularly predominant errors in low, tense, back vowels, more distortions than other types errors, initial position words monosyllabic words. The CA displayed a different pattern, notably substitutions distortions, polysyllabic words, noninitial positions Analysis features...
Single-word repetitions by 4 brain-damaged adults with apraxia of speech (AOS) but without concomitant aphasia were transcribed using a standard narrow phonetic transcription system. Analysis consonant productions yielded profile AOS slightly different from the traditionally accepted one. Among results was atypical finding that distortions exceeded all other error types including sound substitutions. In addition, errors predominated in medial position words, and monosyllabic words had...
Background: Working memory (WM) has gained recent attention as a cognitive construct that may account for language comprehension deficits in persons with aphasia (PWA) (Caspari, Parkinson, LaPointe, & Katz, 1998 Caspari, I., S. R., L. and R. C. 1998. aphasia.. Brain Cognition, 37: 205–223. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Martin, Kohen, Kalinyak‐Fliszar, 2008 N., F. M. 2008. A diagnostic battery to assess short‐term Poster presentation at Clinical Aphasiology...
Abstract Background: The Story Retell Procedure (SRP) (Doyle et al., Citation1998) is a well‐described method for eliciting connected language samples in persons with aphasia (PWA). However, the stimuli and task demands of SRP are fundamentally different from commonly employed picture description, narrative, procedural description tasks reported literature. As such, extent to which measures linguistic performance derived may be associated those obtained unknown. This research was supported...
Purpose: The present study assessed the test–retest reliability of American Sign Language (ASL) version Computerized Revised Token Test (CRTT-ASL) and compared differences similarities between ASL English reading by Deaf hearing users ASL. Method: Creation CRTT-ASL involved filming, editing, validating CRTT instructions, sentence commands, scoring. proficient (DP), nonproficient (HNP), sign language completed self-paced, word-by-word (CRTT-Reading-Word Fade [CRTT-R-wf]). Both tests were...
AbstractBackground: Apraxia of Speech (AOS) is partly characterised by impaired production prosody in words and sentences. Identification dysprosody based on perceptual judgements clinicians, with limited literature potential quantitative objective measures.Aims: This study investigated whether an acoustic measure quantifying degree lexical stress contrastiveness three syllable words, produced isolation a carrier sentence, differentiated individuals AOS with/without aphasia (AOS), only...
This study assessed the reliability and validity of intermodality associations differences in persons with aphasia (PWA) healthy controls (HC) on a computerized listening 3 reading versions Revised Token Test (RTT; McNeil & Prescott, 1978).Thirty PWA 30 HC completed test versions, including complete replication. Reading varied according to stimulus presentation method: (a) full-sentence presentation, (b) self-paced word-by-word construction, (c) each word removed onset next word....
Abstract This study reports the reliability and concurrent validity of information units (IU) metric as an efficient method for quantifying amount comprehended reproduced on Story Retelling Procedure (SRP) (Doyle et al., 2000). Subjects were 31 normal adults 15 with aphasia. Significant moderately high correlation coefficients obtained subjects aphasia between %IUs most linguistic measures including correct unit (Nicholas & Brookshire 1993, 1995) while low non-significant correlations found...
This study investigated the isometric force and static position control of upper lip, lower tongue, jaw, finger in four subject groups (normal control, apraxia speech, conduction aphasia, ataxic dysarthria) at two displacement levels. Results from both tasks suggested that apraxic dysarthric tended to produce significantly greater instability than normal group, although pattern across articulators was not systematic within or experiments for subjects between groups. The aphasic group...
In the context of a hybrid multiple-baseline design, this study demonstrated positive effects behavioral + pharmacological (dextroamphetamine) treatment for lexical-semantic deficits in an individual with primary progressive aphasia (PPA). Behavioral entailed application cuing hierarchy to predicative adjectives order facilitate lexical retrieval. Treatment was effective both antonym and synonym adjectives, although extended practice required achieve criterion. Generalization nontreated...
Background: Previous studies have suggested that visual augmented feedback provided by electromagnetic articulography (EMA) helps persons with apraxia of speech (AOS) recover motor control following stroke (e.g., Katz et al., 2007 Katz, W., Garst, D., Carter, G., McNeil, M., Fossett, T.Doyle, P. 2007. Treatment an individual aphasia and using EMA visually feedback. Brain Language, 103: 213–214. [Crossref], [Web Science ®] , [Google Scholar]). However, the data are few, both in terms variety...
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...