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Showing 46 to 60 of 106 results Save | Export
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Bartle-Meyer, Carly J.; Goozee, Justine V.; Murdoch, Bruce E. – Clinical Linguistics & Phonetics, 2009
The current study aimed to use electromagnetic articulography (EMA) to investigate the effect of increasing word length on lingual kinematics in acquired apraxia of speech (AOS). Tongue-tip and tongue-back movement was recorded for five speakers with AOS and a concomitant aphasia (mean age = 53.6 years; SD = 12.60) during target consonant…
Descriptors: Control Groups, Phonemes, Speech Impairments, Phonology
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Janse, Esther – Clinical Linguistics & Phonetics, 2009
This study investigates neighbourhood density effects on lexical decision performance (both accuracy and response times) of aphasic patients. Given earlier results on lexical activation and deactivation in Broca's and Wernicke's aphasia, the prediction was that smaller neighbourhood density effects would be found for Broca's aphasic patients,…
Descriptors: Aphasia, Patients, Word Recognition, Phonology
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Rohrer, Jonathan D.; Crutch, Sebastian J.; Warrington, Elizabeth K.; Warren, Jason D. – Neuropsychologia, 2010
The neuropsychological features of the primary progressive aphasia (PPA) syndromes continue to be defined. Here we describe a detailed neuropsychological case study of a patient with a mutation in the progranulin ("GRN") gene who presented with progressive word-finding difficulty. Key neuropsychological features in this case included gravely…
Descriptors: Sentences, Semantics, Nouns, Aphasia
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Hoffman, Paul; Jefferies, Elizabeth; Ehsan, Sheeba; Hopper, Samantha; Lambon Ralph, Matthew A. – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2009
Semantic short-term memory (STM) patients have a reduced ability to retain semantic information over brief delays but perform well on other semantic tasks; this pattern suggests damage to a dedicated buffer for semantic information. Alternatively, these difficulties may arise from mild disruption to domain-general semantic processes that have…
Descriptors: Semantics, Short Term Memory, Patients, Aphasia
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Burton, Martha W. – Clinical Linguistics & Phonetics, 2009
Lesion studies have demonstrated impairments of specific types of phonological processes. However, results from neuropsychological studies of speech sound processing have been inconclusive as to the role of specific brain regions because of a lack of a one-to-one correspondence between behavioural patterns and lesion location. Functional…
Descriptors: Investigations, Phonology, Brain, Cognitive Processes
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Kendall, Diane L.; Rosenbek, John C.; Heilman, Kenneth M.; Conway, Tim; Klenberg, Karen; Gonzalez Rothi, Leslie J.; Nadeau, Stephen E. – Brain and Language, 2008
This study investigated the effects of phonologic treatment for anomia in aphasia. We proposed that if treatment were directed at the level of the phonologic processor, opportunities for naming via a phonological route, as opposed to a strictly whole word route, would be enhanced, thereby improving naming. The participants, ten people with anomia…
Descriptors: Phonemes, Aphasia, Phonology, Language Processing
Szupica-Pyrzanowski, Malgorzata – ProQuest LLC, 2009
Failure to supply inflection is common in adult L2 learners of English and agrammatic aphasics (AAs), who are known to resort to bare verb forms. Among attempts to explain the absence of inflection are competing morphological and phonological explanations. In the L2 acquisition literature, omission of inflection is explained in terms of: mapping…
Descriptors: Morphology (Languages), Phonology, Verbs, Morphemes
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Yeung, Olivia; Law, Sam-Po; Yau, Monna – International Journal of Language & Communication Disorders, 2009
Background: While various treatment approaches have been shown to be effective in remediating word-finding difficulties in aphasic individuals, interest has recently been directed at the role of executive functions in affecting treatment outcomes. Aims: To examine the existence of a possible relationship between treatment generalization and…
Descriptors: Cues, Inhibition, Generalization, Sino Tibetan Languages
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Spironelli, Chiara; Angrilli, Alessandro – Neuropsychologia, 2009
In this study spectral delta percentage was used to assess both brain dysfunction/inhibition and functional linguistic impairment during different phases of word processing. To this aim, EEG delta amplitude was measured in 17 chronic non-fluent aphasic patients while engaged in three linguistic tasks: Orthographic, Phonological and Semantic.…
Descriptors: Semantics, Linguistics, Aphasia, Inhibition
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Brambati, S. M.; Ogar, J.; Neuhaus, J.; Miller, B. L.; Gorno-Tempini, M. L. – Neuropsychologia, 2009
Previous neuropsychological studies on acquired dyslexia revealed a double dissociation in reading impairments. Patients with phonological dyslexia have selective difficulty in reading pseudo-words, while those with surface dyslexia misread exception words. This double dissociation in reading abilities has often been reported in brain-damaged…
Descriptors: Behavioral Science Research, Semantics, Dementia, Dyslexia
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Jefferies, Elizabeth; Hoffman, Paul; Jones, Roy; Lambon Ralph, Matthew A. – Journal of Memory and Language, 2008
This study presents the first direct comparison of immediate serial recall in semantic dementia (SD) and transcortical sensory aphasia (TSA). Previous studies of the effect of semantic impairment on verbal short-term memory (STM) have led to important theoretical advances. However, different conclusions have been drawn from these two groups. This…
Descriptors: Phonemes, Phonology, Semantics, Dementia
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Wilshire, Carolyn E.; Keall, Leonie M.; Stuart, Elizabeth J.; O'Donnell, Debra J. – Neuropsychologia, 2007
In this study, we use an auditory picture-word interference task to examine an anomic individual, NP. NP produced semantic errors in picture naming, but his comprehension was relatively well preserved. In the task, pictures to be named were accompanied by semantically, phonologically or unrelated distractors, presented at onsets ranging from…
Descriptors: Aphasia, Language Processing, Identification, Visual Aids
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Fridriksson, Julius; Moser, Dana; Bonilha, Leonardo; Morrow-Odom, K. Leigh; Shaw, Heather; Fridriksson, Astrid; Baylis, Gordon C.; Rorden, Chris – Neuropsychologia, 2007
Most naming treatments in aphasia either assume a phonological or semantic emphasis or a combination thereof. However, it is unclear whether semantic or phonological treatments recruit the same or different cortical areas in chronic aphasia. Employing three persons with aphasia, two of whom were non-fluent, the present study compared changes in…
Descriptors: Semantics, Phonology, Brain, Neurological Organization
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Dell, Gary S.; Martin, Nadine; Schwartz, Myrna F. – Journal of Memory and Language, 2007
Lexical access in language production, and particularly pathologies of lexical access, are often investigated by examining errors in picture naming and word repetition. In this article, we test a computational approach to lexical access, the two-step interactive model, by examining whether the model can quantitatively predict the repetition-error…
Descriptors: Aphasia, Word Recognition, Phonology, Prediction
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Schwartz, Myrna F.; Dell, Gary S.; Martin, Nadine; Gahl, Susanne; Sobel, Paula – Journal of Memory and Language, 2006
Many facts about aphasic and nonaphasic naming are explained by models that use spreading activation to map from the semantics of a word to its phonology. The implemented model of picture naming discussed here achieves this by coupling interactive feedback with two selection steps. The model's structure and default parameters were set up to match…
Descriptors: Semantics, Phonology, Aphasia, Case Studies
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