Search results for "Aphasia"
showing 10 items of 74 documents
Dynamic aphasia and the generation of language
2004
Severely reduced propositional speech in the context of intact nominal language skills (i.e., repetition, naming, comprehension, and reading) is the hallmark of dynamic aphasia (Luria, 1970). Recent evidence suggests there may be different types of dynamic aphasia as some patients do not produce any response on verbal generation tasks, whilst others are able to perform normally on verbal genera- tion tasks. For example, Robinson and colleagues (Robinson, Blair, & Cipolotti, 1998; Robinson, Shallice, & Cipolotti, 2004) reported two dynamic aphasics who failed to produce a verbal response when many verbal response options were activated by a stimulus, but not when a dominant response was avai…
A failure of high level verbal response selection in progressive dynamic aphasia.
2005
Different theoretical interpretations have been offered in order to account for a specific language impairment termed dynamic aphasia. We report a patient (CH) who presented with a dynamic aphasia in the context of nonfluent progressive aphasia. CH had the hallmark of reduced spontaneous speech in the context of preserved naming, reading, and single word repetition and comprehension. Articulatory and grammatical difficulties were also present. CH had a very severe verbal generation impairment despite being able to describe pictorial scenes and action sequences well. In the experimental investigations CH was severely impaired in word, phrase, and sentence generation tasks when many competing…
Transcranial Direct Current Stimulation in Post-Stroke Aphasia Rehabilitation: Bilateral vs Unilateral Online Stimulation
2017
Here we aim to evaluate the efficacy of repeated sessions of transcranial Direct Current Stimulation (tDCS) as additional treatment to standard behavioural rehabilitation in post-stroke aphasic patients comparing bilateral with unilateral left-sided and sham-tDCS. Background: Aphasia is the most common post-stroke cognitive disorder and it severely impacts activities of daily living and social interactions. tDCS recently showed good results in post-stroke aphasia rehabilitiation, even if no agreement at now exists about the stimulation parameters to employ to achieve the best rehabilitative outcome. Design/Methods: We enrolled twenty-two patients with single left-brain lesion at CT or MRI s…
Conversational Turn Length and Fluency Measurement in Aphasia
2013
A common assumption regarding fluency is that the difference between a fluent and non-fluent speaker can be easily stated (Poeck, 1989; Gordon, 1998). However, there is no objective and valid measure to determinate the level of a person with aphasia on the fluency continuum. Traditionally, people with aphasia have been classified as fluent or non-fluent following the cognitive criteria. In ecologycal data we find that 7,3 words-per-turn value is a valid measure in Spanish and Catalan to delimit fluent and non-fluent speakers. These results emphasize the importance of the quantitative analysis of fluency in speech in its natural environment. As well, the measure of 7,3 words-per-turn not onl…
Lenguaje conversacional y evaluación de la afasia: Sobre explotación de los datos en el corpus PerLA (Percepción, lenguaje y afasia)
2009
Recientes estudios han destacado el interés de los datos conversacionales en la evaluación de la afasia, presuponiendo que son representativos del uso natural del lenguaje en mayor medida que los datos obtenidos en contextos propios de los métodos experimentales. En estos últimos contextos las muestras del lenguaje constituyen usos normalmente desvinculados de toda función comunicativa, o que implican tareas más propias de un saber metalingüístico que de un saber relacionado con la práctica real del lenguaje. El análisis de los datos conversacionales permite observar variables o factores explicativos de la conducta verbal patológica que no suelen manifestarse en los contextos experimentales…
Adaptative behaviors in aphasic conversational breackdown
2013
Aphasia is an element that causes conversational breakdowns in normal interaction, which the aphasic speakers and their partners must cope with. Clinical linguistic investigates this situation in order to provide strategies and resources to both kinds of speakers. In this communications a presentation of Perceptive Classification of Aphasic Language Impairment (Goverment, Concordance, Order and Integrity Impairment) is made, with special atention to their consequences in conversational interaction.
Afasia no fluente. Materiales y análisis pragmático (Volumen 2 del Corpus PerLA)
2005
El corpus PerLA (“Percepción, Afasia y Lenguaje”), surge en el área de Lingüística General de la Universitat de València como respuesta a la necesidad de integrar el estudio de las patologías lingüísticas en las tendencias actuales de la pragmática y la lingüística de corpus. Para satisfacer las exigencias de estas disciplinas y disponer de datos con validez ecológica, se han realizado grabaciones a diferentes hablantes con afasia, en un contexto que intenta alejarse de las convenciones propias de la entrevista para aproximarse en lo posible a las interacciones conversacionales que desarrolla cualquier hablante en su cotidianeidad; de ahí la participación esencial de los interlocutores-clav…
Recovery of aphasia: a case study with “dual” tdcs.
2011
Objectives. In the present study we used a “dual” tDCS (Vines et al., 2008; Giglia et al., 2011) training on inferior frontal gyrus’s (IFG) areas in order to improve the linguistic performance of EBE, an Italian female, left-handed, presenting a global aphasia following a stroke of right middle cerebral artery. Materials. For the picture naming task, 20 object and 20 action images, selected from a set of picture standardized for frequency, were presented on a paper sheet one at time. Method. Stimulation was used at 1mA for 15 minutes. Dual tDCS was given over both IFGs, cathode in the right (damaged areas) and anode in the left (preserved areas) daily for two weeks (weekend-free). The posit…
Disturbances of communication in persons with traumatic brain injury
2015
The present study was undertaken to examine the communicative problems faced by non-aphasic patients with traumatic brain injury (TBI), with particular attention to the com plex interactions between the psychological processes taking place in the minds of patients and the social transactions involved in the communicative act. Some theoretical background is provided. Five examples are given, illustrating how TBI patients exhibit pathologies of communication, even when their linguistic competence, as normally understood, seems to be largely intact. Qualitative methods of analysis are applied, including a simplified version of conversation analysis. Aphasia is not the only, or even the most im…
A Basic Communicative Guide for Key Conversational Partners
2012
Presentación de las Guías comunicativa para interlocutores de hablantes de con afasia.