scholarly journals Polvo de lavar o Irex: incidencia de estímulos fonológicos y semánticos en la producción de palabras habladas de una paciente afásica

LETRAS ◽  
2009 ◽  
pp. 91-120
Author(s):  
Laura Casasa Núñez
Keyword(s):  
Language Production ◽  
Word Production ◽  
Production Processes ◽  
Phonological Length

Se estudia la incidencia de los estímulos fonológicos y semánticos en los procesos de producción léxica, a partir de los datos obtenidos en pruebas de denominación con paciente afásica con características anómicas. Arroja datos en relación con la naturaleza del lexicón, el debate entre procesos seriales y de acceso directo y su papel en la recuperación léxica la longitud fonológica y silábica de la palabra. The incidence of semantic and phonological stimuli in word production processes is addressed. This research analyzes the results obtained from different denomination tasks with an anomic speaker with aphasia. The basis of research was a lexicon theory, the debate between connectionist or serial levels in language production, and the incidence of syllabical and phonological length in word recovery.

scholarly journals Comparing the cognate effect in spoken and written second language word production

2019 ◽  
Author(s):  
Merel Muylle ◽  
Eva Van Assche ◽  
Robert Hartsuiker
Keyword(s):  
Second Language ◽  
Picture Naming ◽  
Language Production ◽  
Naming Task ◽  
Written Language ◽  
Word Production ◽  
Error Pattern ◽  
Underlying Processes

Cognates – words that share form and meaning between languages – are processed faster than control words. However, it is unclear whether this effect is merely lexical (i.e., central) in nature, or whether it cascades to phonological/orthographic (i.e., peripheral) processes. This study compared the cognate effect in spoken and typewritten production, which share central, but not peripheral processes. We inquired whether this effect is present in typewriting, and if so, whether its magnitude is similar to spoken production. Dutch-English bilinguals performed either a spoken or written picture naming task in English; picture names were either Dutch-English cognates or control words. Cognates were named faster than controls and there was no cognate-by-modality interaction. Additionally, there was a similar error pattern in both modalities. These results suggest that common underlying processes are responsible for the cognate effect in spoken and written language production, and thus a central locus of the cognate effect.

Word form retrieval in language production

2007 ◽  
pp. 470-488 ◽  
Author(s):  
Antje S. Meyer ◽  
Eva Belke
Keyword(s):  
Language Production ◽  
Knowledge Building ◽  
Word Production ◽  
Word Form ◽  
Lexical Selection ◽  
Single Word ◽  
Phonological Representations ◽  
Phonological Knowledge ◽  
Phonetic Code ◽  
Selection Of

Current models of word form retrieval converge on central assumptions. They all distinguish between morphological, phonological, and phonetic representations and processes; they all assume morphological and phonological decomposition, and agree on the main processing units at these levels. In addition, all current models of word form postulate the same basic retrieval mechanisms: activation and selection of units. Models of word production often distinguish between processes concerning the selection of a single word unit from the mental lexicon and the retrieval of the associated word form. This article explores lexical selection and word form retrieval in language production. Following the distinctions in linguistic theory, it discusses morphological encoding, phonological encoding, and phonetic encoding. The article also considers the representation of phonological knowledge, building of phonological representations, segmental retrieval, retrieval of metrical information, generating the phonetic code of words, and a model of word form retrieval.

Brain-imaging studies of language production

2007 ◽  
pp. 546-564
Author(s):  
Peter Indefrey
Keyword(s):  
Brain Imaging ◽  
Language Production ◽  
Brain Regions ◽  
Code Word ◽  
Word Production ◽  
Production Model ◽  
Exact Nature ◽  
Lexical Selection ◽  
Imaging Studies ◽  
Independent Evidence

This article adopts the production model of Levelt to discuss brain imaging studies of continuous speech. Conclusions about the involvement of brain regions in processes of language production are mainly drawn on the basis of the presence or absence of processing components of speaking in certain experimental tasks. Such conclusions are largely theory independent, because differences between current models do not concern the assumed processing levels but the exact nature of the information flow between them. In a second step, the article tests some of these conclusions by comparing the few available data on activation time courses of brain regions and independent evidence on the timing of processes in language production. It also discusses brain regions involved in word production, conceptually driven lexical selection, phonological code (word form) retrieval, phonological encoding, phonetic encoding and articulation, self-monitoring, whether the hemodynamic core areas are necessary for word production, and bilingual language production.

scholarly journals ERP Correlates of Word Production before and after Stroke in an Aphasic Patient

2011 ◽  
Vol 23 (2) ◽  
pp. 374-381 ◽  
Author(s):  
Marina Laganaro ◽  
Stéphanie Morand ◽  
Christoph M. Michel ◽  
Laurent Spinelli ◽  
Armin Schnider
Keyword(s):  
Picture Naming ◽  
Healthy Subjects ◽  
Language Production ◽  
Time Window ◽  
Brain Activity ◽  
Temporal Cortex ◽  
Word Production ◽  
Control Group ◽  
Healthy Controls ◽  
Aphasic Patient

Changes in brain activity characterizing impaired speech production after brain damage have usually been investigated by comparing aphasic speakers with healthy subjects because prestroke data are normally not available. However, when interpreting the results of studies of stroke patients versus healthy controls, there is an inherent difficulty in disentangling the contribution of neuropathology from other sources of between-subject variability. In the present work, we had an unusual opportunity to study an aphasic patient with severe anomia who had incidentally performed a picture naming task in an ERP study as a control subject one year before suffering a left hemisphere stroke. The fortuitous recording of this patient's brain activity before his stroke allows direct comparison of his pre- and poststroke brain activity in the same language production task. The subject did not differ from other healthy subjects before his stroke, but presented major electrophysiological differences after stroke, both in comparison to himself before stroke and to the control group. ERP changes consistently appeared after stroke in a specific time window starting about 250 msec after picture onset, characterized by a single divergent but stable topographic configuration of the scalp electric field associated with a cortical generator abnormally limited to left temporal posterior perilesional areas. The patient's pattern of anomia revealed a severe lexical–phonological impairment and his ERP responses diverged from those of healthy controls in the time window that has previously been associated with lexical–phonological processes during picture naming. Given that his prestroke ERPs were indistinguishable from those of healthy controls, it seems highly likely that the change in his poststroke ERPs is due to changes in language production processes as a consequence of stroke. The patient's neurolinguistic deficits, combined with the ERPs results, provide unique evidence for the role of left temporal cortex in lexical–phonological processing from about 250 to 450 msec during word production.

The effects of suggestopedic elements on qualitative and quantitative measures of language production

1994 ◽  
Vol 17 (2) ◽  
pp. 1-21 ◽  
Author(s):  
Uschi Felix ◽  
Michael Lawson
Keyword(s):  
Language Production ◽  
Language Skills ◽  
Word Production ◽  
Retention Rates ◽  
Writing Quality ◽  
Treatment Conditions ◽  
Grammar Rules ◽  
Central Interest ◽  
And Control

Abstract This was a 10-week time-series investigation of a class of 12 students with the same teacher carrying out the teaching for both the experimental and control condition and the same students exposed to both treatment conditions. The question of central interest in this study was whether Suggestopedia affects more sophisticated language skills than recall, and both quantitative and qualitative measures were included to address the criticism that Suggestopedia affects memory skills alone. Year 10 students’ recall, comprehension, word production, fluency, accuracy, writing quality, transfer skills of grammatical items, and understanding of grammar rules were tested once a week. Long-term retention rates for recall were also checked at the end of each four-week period. The findings suggested that Suggestopedia does in fact have the potential to positively affect sophisticated language skills such as transfer of structures and creative writing. Compared with performance during the control Phase, results showed that during the experimental Phase students performed equally as well on tests of comprehension, accuracy and understanding of rules, and significantly better on tests of recall, word production, fluency, writing quality and transfer of grammatical items.

scholarly journals Effects of transcranial magnetic stimulation over the left posterior superior temporal gyrus on picture-word interference

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242941
Author(s):  
Vitória Piai ◽  
Laura Nieberlein ◽  
Gesa Hartwigsen
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Language Production ◽  
Magnetic Stimulation ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Temporal Cortex ◽  
Superior Temporal Gyrus ◽  
Word Production ◽  
Brain State ◽  
Semantic Interference ◽  
Interference Task

Word-production theories argue that during language production, a concept activates multiple lexical candidates in left temporal cortex, and the intended word is selected from this set. Evidence for theories on spoken-word production comes, for example, from the picture-word interference task, where participants name pictures superimposed by congruent (e.g., picture: rabbit, distractor “rabbit”), categorically related (e.g., distractor “sheep”), or unrelated (e.g., distractor “fork”) words. Typically, whereas congruent distractors facilitate naming, related distractors slow down picture naming relative to unrelated distractors, resulting in semantic interference. However, the neural correlates of semantic interference are debated. Previous neuroimaging studies have shown that the left mid-to-posterior STG (pSTG) is involved in the interference associated with semantically related distractors. To probe the functional relevance of this area, we targeted the left pSTG with focal repetitive transcranial magnetic stimulation (rTMS) while subjects performed a picture-word interference task. Unexpectedly, pSTG stimulation did not affect the semantic interference effect but selectively increased the congruency effect (i.e., faster naming with congruent distractors). The facilitatory TMS effect selectively occurred in the more difficult list with an overall lower name agreement. Our study adds new evidence to the causal role of the left pSTG in the interaction between picture and distractor representations or processing streams, only partly supporting previous neuroimaging studies. Moreover, the observed unexpected condition-specific facilitatory rTMS effect argues for an interaction of the task- or stimulus-induced brain state with the modulatory TMS effect. These issues should be systematically addressed in future rTMS studies on language production.

scholarly journals A critical review of the behavioural, neuroimaging, and electrophysiological studies of co-activation of representations during word production

2019 ◽  
Author(s):  
Nazbanou Nozari ◽  
Svetlana Pinet
Keyword(s):  
Language Production ◽  
Large Body ◽  
Word Production ◽  
Spreading Activation ◽  
Monitoring And Control ◽  
Co Activation ◽  
Electrophysiological Studies ◽  
Alternative Approaches ◽  
Common Problems ◽  
And Control

A large body of behavioral, neuroimaging, and electrophysiological studies have investigated the consequences of co-activation of representations during word production. Despite such an amazing body of empirical data, it remains unclear how the production system handles co-activated items. In this paper, we review this evidence in a systematic way, and point out three common problems in the interpretations attached to these data. We then discuss alternative approaches which might be more fruitful in understanding the links between such data and the processes of spreading activation, selection, monitoring and control in language production.

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