Processing, please wait...
Database
search
in
Filter year from
to
Language
Country
  • Enter your search phrase in the search box.
  • General search:
    • The Boolean operator AND between the terms is assumed by default. If you enter the words European Union in the search box, the system returns all records in which both words occur, regardless of their order.
    • When entering a set of words in quotes, e.g "european union", all records containing the literal term "European Union" will be retrieved.
  • Search by access fields (e.g. author, title, etc.):
    • To direct your search, choose the field in which you want to search the word or expression.
    • Search in the field assumes by default the expression in quotes, e.g. European union will retrieve all records containing the literal term "European Union"
  • To perform more complex searches, additional words or expressions may be added.
  • If you want to refine the search results, you can always access the link "search" in the upper left corner of the page of search results.
  • The search engine is not case sensitive. For example, the word congress has the same meaning that Congress or CONGRESS.
  • To truncate your search expression, use the $ character
  • You can filter the results of your search by a date or date range, filling the appropriate boxes.
Base:
BIAL Foundation
Search:
cod:"PT/FB/BL-2008-192$"
Results
1
to
5
from
5
found.
View
Selection Description
Type Title Begin End
File192 - Brain dynamics underlying motor awareness in language2009-102014-09

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2008
Location: Arquivo PCA - Pastas 1 a
Title:
2008 Grants
Start date: 2009-01

Reference code: PT/FB/BL-2008-192
Location: Arquivo PCA - Pasta 8/2008
Title:
192 - Brain dynamics underlying motor awareness in language
Duration: 2009-10 - 2014-09
Researcher(s):
Francesca Carota, Angela Sirigu, Claude Delpuech, Andres Posada, Sylvain Harquel
Institution(s): Centre de Neuroscience Cognitive, Bron (France)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Article
Language: eng
Author:
Carota, F.
Secondary author(s):
Sirigu, A., Delpuech, C., Posada, A., Marquel, S.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Language / Brain structure and function

DocumentFinal report - Spatiotemporal dynamics underlying the intention to speak2011

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2008
Location: Arquivo PCA - Pastas 1 a
Title:
2008 Grants
Start date: 2009-01

Reference code: PT/FB/BL-2008-192
Location: Arquivo PCA - Pasta 8/2008
Title:
192 - Brain dynamics underlying motor awareness in language
Duration: 2009-10 - 2014-09
Researcher(s):
Francesca Carota, Angela Sirigu, Claude Delpuech, Andres Posada, Sylvain Harquel
Institution(s): Centre de Neuroscience Cognitive, Bron (France)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Article
Language: eng
Author:
Carota, F.
Secondary author(s):
Sirigu, A., Delpuech, C., Posada, A., Marquel, S.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Language / Brain structure and function

Reference code: PT/FB/BL-2008-192.01
Location: Arquivo PCA - Pasta 8/2008
Title:
Final report - Spatiotemporal dynamics underlying the intention to speak
Publication year: 2011
URL:
https://www.bial.com/imagem/Bolsa20008_23112011.pdf
Abstract/Results: ABSTRACT:
When we speak, we perform intentional communicative actions, by asserting, requesting or refusing something. The origin of intentional action is debated in cognitive neuroscience, how intentional communication is generated in the brain is still an open question. Here we asked how and when does the decision to speak become a conscious intention, i.e. a “wanting to talk” and what brain areas monitor the emergence of such an intention?
Neuropsychological evidence showed that damage to the parietal cortex disturbs early stages of motor awareness during self-initiated actions, impairing the ability to monitor the experience of intention, suggesting that this regions holds neural mechanisms important for “attention to intention” during movement planning. Does the functional role of the parietal cortex in intentional processes generalize to other behaviours involving action planning, such as spoken language?
Here we used magnetoencephalography to investigate the cortical dynamics engaged by a language production task, in which twelve healthy volunteers pronounced a one-word utterance (following a trial start cue). They were instructed to attend to either their intention to speak or their actual speech and to report the time they first became aware of their intention to speak or they started speaking.
We found that activity in the right and left parietal cortex increased before subjects became aware of intending to speak. Within the time window of parietal activation, we also observed a transient left inferior frontal activity in Broca's area, a crucial region for inner speech. During attention to speech, neural activity was detected in left prefrontal and temporal areas and in the temporoparietal junction. In agreement with previous results, our findings suggest that the parietal cortex plays a multimodal role in monitoring intentional mechanisms in both action and language. The coactivation of parietal regions and Broca's area may constitute the cortical circuit specific for controlling intentional processes during spoken language.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Carota, F.
Secondary author(s):
Sirigu, A., Delpuech, C., Posada, A., Marquel, S.
Document type:
Final report
Number of reproductions:
1
Indexed document:
No
Keywords: Spoken language / Action intention / Fronto-temporal language network / Parietal cortex / Mmagnetoencephalography

Novo ficheiro

Novo ficheiro

DocumentNeural dynamics of the intention to speak2010

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2008
Location: Arquivo PCA - Pastas 1 a
Title:
2008 Grants
Start date: 2009-01

Reference code: PT/FB/BL-2008-192
Location: Arquivo PCA - Pasta 8/2008
Title:
192 - Brain dynamics underlying motor awareness in language
Duration: 2009-10 - 2014-09
Researcher(s):
Francesca Carota, Angela Sirigu, Claude Delpuech, Andres Posada, Sylvain Harquel
Institution(s): Centre de Neuroscience Cognitive, Bron (France)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Article
Language: eng
Author:
Carota, F.
Secondary author(s):
Sirigu, A., Delpuech, C., Posada, A., Marquel, S.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Language / Brain structure and function

Reference code: PT/FB/BL-2008-192.02
Location: Arquivo PCA - Pasta 8/2008
Title:
Neural dynamics of the intention to speak
Publication year: 2010
URL:
http://www.ncbi.nlm.nih.gov/pubmed/20008453
Abstract/Results: ABSTRACT:
When we talk we communicate our intentions. Although the origin of intentional action is debated in cognitive neuroscience, the question of how the brain generates the intention in speech remains still open. Using magnetoencephalography, we investigated the cortical dynamics engaged when healthy subjects attended to either their intention to speak or their actual speech. We found that activity in the right and left parietal cortex increased before subjects became aware of intending to speak. Within the time window of parietal activation, we also observed a transient left frontal activity in Broca's area, a crucial region for inner speech. During attention to speech, neural activity was detected in left prefrontal and temporal areas and in the temporoparietal junction. In agreement with previous results, our findings suggest that the parietal cortex plays a multimodal role in monitoring intentional mechanisms in both action and language. The coactivation of parietal regions and Broca's area may constitute the cortical circuit specific for controlling intentional processes during speech.
Accessibility: Document exists in file
Copyright/Reproduction:
By permission
Language:
eng
Author:
Carota, F.
Secondary author(s):
Posada, A., Harquel, S., Delpuech, C., Bertrand, O., Sirigu, A.
Document type:
Article
Number of reproductions:
1
Reference:
Carota, F., Posada, A., Harquel, S., Delpuech, C., Bertrand, O., & Sirigu, A. (2010). Neural dynamics of the intention to speak. Cerebral Cortex, 20(8), 1891-1897. doi: 10.1093/cercor/bhp255
2-year Impact Factor: 6.844|2010
Times cited: 31|2022-05-21
Indexed document: Yes
Quartile: Q1
Keywords: Broca's area / Magnetoencephalography / Motor intention / Parietal cortex / Speech

Novo ficheiro

Novo ficheiro

DocumentForward modeling mediates motor awareness2010

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2008
Location: Arquivo PCA - Pastas 1 a
Title:
2008 Grants
Start date: 2009-01

Reference code: PT/FB/BL-2008-192
Location: Arquivo PCA - Pasta 8/2008
Title:
192 - Brain dynamics underlying motor awareness in language
Duration: 2009-10 - 2014-09
Researcher(s):
Francesca Carota, Angela Sirigu, Claude Delpuech, Andres Posada, Sylvain Harquel
Institution(s): Centre de Neuroscience Cognitive, Bron (France)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Article
Language: eng
Author:
Carota, F.
Secondary author(s):
Sirigu, A., Delpuech, C., Posada, A., Marquel, S.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Language / Brain structure and function

Reference code: PT/FB/BL-2008-192.03
Location: Arquivo PCA - Pasta 8/2008
Title:
Forward modeling mediates motor awareness
Publication year: 2010
URL:
http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195381641.001.0001/acprof-9780195381641-chapter-10
Abstract/Results: ABSTRACT:
This chapter focuses on the issue of motor awareness. It addresses three main questions: What exactly are we aware of when making a movement? What is the contribution of afferent and efferent signals to motor awareness? What are the neural bases of motor awareness? It reviews evidence that the motor system is mainly aware of its intention. As long as the goal is achieved, nothing reaches awareness about the kinematic details of the ongoing movements, even when substantial corrections have to be implemented to attain the intended state. The chapter also shows that motor awareness relies mainly on the central predictive computations carried out within the posterior parietal cortex. The outcome of these computations is contrasted with the peripheral reafferent input to build a veridical motor awareness. Some evidence exists that this process involves the premotor areas.
Accessibility: Document does not exist in file
Language:
eng
Author:
Carota, F.
Secondary author(s):
Desmurget, M., Sirigu, A.
Document type:
Book chapter
Number of reproductions:
1
Reference:
Carota, F., Desmurget, M., & Sirigu, A. (2010). Forward modeling mediates motor awareness. In Sinnott-Armstrong, W., & Nadel, L. (Eds.), Conscious Will and Responsibility: A Tribute to Benjamin Libet (pp. 97-108). New York : Oxford University Press. doi: 10.1093/acprof:oso/9780195381641.003.0010
Indexed document: Yes
Keywords: Motor awareness / Movements / Afferent signals / Efferent signals / Central predictive computations

DocumentCortical dynamics underlying the intentions behind speech-acts: A MEG study2009

Reference code: PT/FB
Entity holding: BIAL Foundation
Location: S. Mamede do Coronado
Title:
BIAL Foundation Archive
Start date: 1994
History:
The BIAL Foundation was created in 1994 by Laboratórios BIAL in conjunction with the Council of Rectors of Portuguese Universities. BIAL’s Foundation mission is to foster the scientific study of Man from both the physical and spiritual perspectives.
Along the years the BIAL Foundation has developed an important relationship with the scientific community, first in Portugal and after worldwide. Today it is an institution of reference which aims to stimulate new researches that may help people, promote more health and contribute to new milestones to gain access to knowledge.
Among its activities the BIAL Foundation manages the BIAL Award, created in 1984, one of the most important awards in the Health field in Europe. The BIAL Award rewards both the basic and the clinical research distinguishing works of major impact in medical research.
The BIAL Foundation also assigns Scientific Research Scholarships for the study of neurophysiological and mental health in people, arousing the interest of researchers in the areas of Psychophysiology and Parapsychology.
To date the BIAL Foundation has supported 461 projects, more than 1000 researchers, with research groups in twenty-seven countries, resulting, until April 2013, in about 600 full papers, out of which 172 published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Since 1996 the BIAL Foundation organizes the Symposia entitled "Behind and Beyond the Brain", a Forum that gathers well renowned neurosciences speakers and the BIAL Foundation Fellows which are spread around the world.
Classified as an institution of public utility, the BIAL Foundation includes among its patrons the Portuguese President, the Portuguese Universities Rectors' Council and the Portuguese Medical Association.
URL: http://www.bial.com/pt/
Accessibility: By permission

Reference code: PT/FB/BL
Entity holding: BIAL Foundation
Title: BIAL Grants
Start date: 1994
History:
In 1994 the BIAL Foundation launched a programme of science research grants with the aim of encouraging the research into Man’s physical and mental processes, namely in fields still largely unexplored but which warrant further scientific analysis, as Psychophysiology and Parapsychology.
Since its launch, applications to the BIAL grants have been increasing. Up to now 461 projects have been supported, involving more than 1000 researchers from 27 countries.
The approved applications have benefited from grants in amounts comprised between €5,000 and €50, 000. The amount to be granted is fixed by the Scientific board according to the needs of each project.
The supported projects have originated, until April 2013, in about 600 full papers, 172 out of which were published in indexed international journals with an average impact factor of 3.6 and a substantial number of citations (1665).
Among the BIAL Foundation fellows is worth highlighting the presence of scientists from prestigious universities from the United States, United Kingdom, Australia, Russia, Germany, Japan, France, Canada, and many others.
The BIAL grants are promoted biannually.

Reference code: PT/FB/BL-2008
Location: Arquivo PCA - Pastas 1 a
Title:
2008 Grants
Start date: 2009-01

Reference code: PT/FB/BL-2008-192
Location: Arquivo PCA - Pasta 8/2008
Title:
192 - Brain dynamics underlying motor awareness in language
Duration: 2009-10 - 2014-09
Researcher(s):
Francesca Carota, Angela Sirigu, Claude Delpuech, Andres Posada, Sylvain Harquel
Institution(s): Centre de Neuroscience Cognitive, Bron (France)
Contents: Contents:
Bursary agreement
Application form
Correspondence
Financial report and expenditure documents
Progress report
Final report
Article
Language: eng
Author:
Carota, F.
Secondary author(s):
Sirigu, A., Delpuech, C., Posada, A., Marquel, S.
Number of reproductions:
1
Keywords:
Psychophysiology / Cognitive processes / Language / Brain structure and function

Reference code: PT/FB/BL-2008-192.04
Location: Arquivo PCA - Pasta 8/2008
Title:
Cortical dynamics underlying the intentions behind speech-acts: A MEG study
Publication year: 2009
URL:
http://ipra.ua.ac.be/main.aspx?c=.CONFERENCE11&n=1387
Abstract/Results: ABSTRACT:
BACKGROUND
Intention is an essential dimension of language-in-action. Using language, we do more than things such as stating, requesting, and refusing (Searle, 1969; Austin, 1980): we realize spontaneous, voluntary actions.
Our intended speech acts rely crucially on the matching between the output of our verbal actions and a prior intention (what the speaker decides to express using language, Levelt, 1989). However, how intention is generated in the brain during speech is an open question.
In the action domain, motor control theories postulate that, during action execution, the Central Nervous System generates “forward models” in order to predict the sensory consequences of our upcoming movements (Wolpert and Ghahramani, 2000). The parietal cortex is a key region for activating and maintaining these models. Indeed, left inferior parietal lesions alter the ability to report the time of conscious intention to act (Sirigu et al., 2004).
Does the intention to act depend on similar neurocognitive mechanisms also in other domains such as speech?
Our hypothesis is indeed that the parietal regions are involved in intentional processes that encompass both action and language.
EXPERIMENTAL SETTING
In order to test this hypothesis, we adopted a Libet’s paradigm based on a temporal judgment task (Libet et al., 1983), in which 16 healthy subjects were asked to pronounce a one-word-like utterance and then to report verbally:
(a) the time when they first intended to speak (Intention condition)
(b) the time when they actually spoke (Speech condition)
Subject gave their verbal responses based on the position of a clock-hand turning around a clock-face on 2,560ms.
We used Magnetoencephalography to explore the neural dynamics associated with the awareness of the intention to speak.
RESULTS
We observed a negative rise of magnetic field over right parietal sensors, which was significantly higher in Intention than Speech (p<0.05) from -776 ms to -390ms before speech onset. This effect preceded the subjects’ reported time of their intention to speak (-352ms before speech onset). Furthermore, a right parietal source of brain activity emerged during the Intention condition within a time window from -890 to -290ms before speech onset. Left temporal regions were selectively engaged in the Speech task.
CONCLUSIONS
Taken together, the findings strongly support the view that the parietal cortex plays a key multimodal role in the conscious intention to act, whether this involves hand action or a linguistic act. These results are discussed in the perspective of the link between action and language in multimodal communication.
Accessibility: Document exists in file
Language:
eng
Author:
Carota, F.
Secondary author(s):
Posada, A., Harquel, S., Delpuech, C., Sirigu, A.
Document type:
Abstract book
Number of reproductions:
1
Reference:
Carota, F., Posada, A., Harquel, S., Delpuech, C., & Sirigu, A. (2009). Cortical dynamics underlying the intentions behind speech-acts: A MEG study. In Abstract Book of 11th International Pragmatics Conference, Melbourne, Australia (pp. 218-219).
Indexed document: No
Keywords: Spoken language / Action intention / Parietal cortex

Cortical dynamics underlying the intentions behind speech-acts: A MEG study

Cortical dynamics underlying the intentions behind speech-acts: A MEG study