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2. Consequences of General Anesthesia in Infancy on Behavior and Brain Structure

Author

Salaün, Jean-Philippe, Chagnot, Audrey, Cachia, Arnaud, Poirel, Nicolas, Datin-Dorrière, Valérie, Dujarrier, Cléo, Lemarchand, Eloïse, Rolland, Marine, Delalande, Lisa, Gressens, Pierre, Guillois, Bernard, Houdé, Olivier, Levard, Damien, Gakuba, Clément, Moyon, Marine, Naveau, Mikael, Orliac, François, Orliaguet, Gilles, Hanouz, Jean-Luc, Agin, Véronique, Borst, Grégoire, and Vivien, Denis

Published
2023
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3. Neural correlates underlying local and global processing during visual search across adulthood.

Author

Doucet, Gaelle, Kruse, Jordanna A., Hamlin, Noah, Peyrin, Carole, and Poirel, Nicolas

Subjects
VISUAL perception, SALIENCE network, OLDER people, ADULTS, INSULAR cortex, YOUNG adults, CINGULATE cortex
Abstract

Visual processing relies on the identification of both local and global features of visual stimuli. While well investigated at the behavioral level, the underlying brain mechanisms are less clear, especially in the context of aging. Using fMRI, we aimed to investigate the neural correlates underlying local and global processing in early and late adulthood. We recruited 77 healthy adults aged 19–77 who completed a visual search task based on 2-level hierarchical stimuli made of squares and/or circles. Participants were instructed to detect a target (a square) at either a local (small) or global (large) level of a hierarchical geometrical form, in the presence or absence of other hierarchical geometrical forms (distractors). At the behavioral level, we revealed high accuracy for all participants, but older participants were slower to detect local targets, specifically in presence of distractors. At the brain level, while both local and global processing were associated with occipital activation, local processing also recruited the anterior insula and dorsal anterior cingulate cortex, that are core regions of the salience network. However, while the presence of distractors in the local condition elicited specifically stronger activation within the right anterior insula for the young group, it was not observed for older participants. In addition, older participants showed less activation than younger participants in the occipital cortex, especially for the most complex conditions. Our findings suggest that the brain correlates underlying local and global processing change with aging, especially for complex visual patterns. These results are discussed in terms of top-down reduction effects from the salience network on primary visual areas, that may lead to specific difficulties to process local visual details in older adults. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Consequences of General Anesthesia in Infancy on Behavior and Brain Structure

Author

Salaün, Jean-Philippe, Chagnot, Audrey, Cachia, Arnaud, Poirel, Nicolas, Datin-Dorrière, Valérie, Dujarrier, Cléo, Lemarchand, Eloïse, Rolland, Marine, Delalande, Lisa, Gressens, Pierre, Guillois, Bernard, Houdé, Olivier, Levard, Damien, Gakuba, Clément, Moyon, Marine, Naveau, Mikael, Orliac, François, Orliaguet, Gilles, Hanouz, Jean-Luc, Agin, Véronique, Borst, Grégoire, Vivien, Denis, Hôpital Côte de Nacre [CHU Caen], CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), Physiopathologie et imagerie des troubles neurologiques (PhIND), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Normandie Université (NU), Laboratoire de psychologie du développement et de l'éducation de l'enfant (LaPsyDÉ - UMR 8240), Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de psychologie du développement et de l'éducation de l'enfant (LaPsyDÉ), Normandie Université (NU)-Normandie Université (NU)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), University of Manchester [Manchester], Thèses d'exercice et mémoires - UFR de Médecine Montpellier-Nîmes, Université de Montpellier (UM), Maladies neurodéveloppementales et neurovasculaires (NeuroDiderot (UMR_S_1141 / U1141)), Laboratoire de psychologie de Caen Normandie (LPCN), Normandie Université (NU)-Normandie Université (NU), Service de Soins Intensifs [CHU Caen], Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), Unité Support CYCERON, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN)-Centre National de la Recherche Scientifique (CNRS), GIP Cyceron (Cyceron), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Evaluation thérapeutique et pharmacologie périnatale et pédiatrique (EA_7323), Université Paris Descartes - Paris 5 (UPD5), Etablissement français du sang - Normandie (EFS), and Institut Blood and Brain @ Caen-Normandie [Caen] (BB@C)

Subjects
[SCCO]Cognitive science, Anesthesiology and Pain Medicine, [SCCO.NEUR]Cognitive science/Neuroscience, [SCCO.PSYC]Cognitive science/Psychology, [SHS.PSY]Humanities and Social Sciences/Psychology
Abstract

International audience

Published
2022
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7. S167. ANATOMICAL CONNECTIVITY OF THE VISUOSPATIAL ATTENTIONAL NETWORK IN SCHIZOPHRENIA: A DTI-BASED TRACTOGRAPHY STUDY

Author

Sonia Dollfus, Poirel Nicolas, and Leroux Elise

Subjects
Poster Session III, biology, business.industry, Superior longitudinal fasciculus, biology.organism_classification, Lateralization of brain function, White matter, Abstracts, Psychiatry and Mental health, medicine.anatomical_structure, Fasciculus, Fractional anisotropy, Medicine, Inferior longitudinal fasciculus, business, Neuroscience, Tractography, Diffusion MRI
Abstract

Background In healthy controls (HCs), the visuospatial attentional network consists of fronto-parietal bundles distributed across both hemispheres, but the anatomical organization of this network remains largely unknown in patients with schizophrenia (SZPs). Using diffusion tensor imaging (DTI)-based tractography, we investigated both white matter integrity and the volume of visuospatial attentional pathways in the right and left hemispheres (RH and LH), as well as their structural asymmetry in SZPs and HCs and hypothesized that SZPs would have WM pathway alterations and abnormal structural asymmetry. Methods This study included 34 SZPs and 69 HCs. Integrity parameters (fractional anisotropy [FA], radial and mean diffusivity [RD and MD]) and volume were calculated in each fasciculus of this network: the three branches of the superior longitudinal fasciculus (SLFI–III), the inferior longitudinal fasciculus, and the inferior fronto-occipital fasciculus in the RH and LH. Results In SLFII and SLFIII, compared to RH and LH values for SZPs, HCs presented increased FA and/or decreased RD/MD in RH and/or LH. Both SZPs and HCs presented increased FA and decreased RD/MD in the RH compared to the LH in the SLFIII, whereas only HCs had this pattern in the SLFII. Volumes did not differ between groups. Discussion To our knowledge, this study is the first to describe the structural hemispheric lateralization/organization of the visuospatial attentional network in SZPs. Our main findings are disrupted structural connectivity in the SLFII associated with abnormal anatomical asymmetry in patients, which could be a substrate of attentional deficits.

Published
2018
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9. Sulcal Polymorphisms of the IFC and ACC Contribute to Inhibitory Control Variability in Children and Adults

Author

Tissier, Cloélia, primary, Linzarini, Adriano, additional, Allaire-Duquette, Geneviève, additional, Mevel, Katell, additional, Poirel, Nicolas, additional, Dollfus, Sonia, additional, Etard, Olivier, additional, Orliac, François, additional, Peyrin, Carole, additional, Charron, Sylvain, additional, Raznahan, Armin, additional, Houdé, Olivier, additional, Borst, Grégoire, additional, and Cachia, Arnaud, additional

Published
2018
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10. The impacts of examples on creative design : explaining fixation and stimulation effects

Author

Agogué, Marine, Kazakçı, Akın, Hatchuel, Armand, Le Masson, Pascal, Weil, Benoit, Poirel, Nicolas, Cassotti, Mathieu, Agogue, Marine, Centre de Gestion Scientifique i3 ( CGS i3 ), MINES ParisTech - École nationale supérieure des mines de Paris-PSL Research University ( PSL ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de psychologie du développement et de l'éducation de l'enfant ( LaPsyDÉ - UMR 8240 ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de Gestion Scientifique i3 (CGS i3), MINES ParisTech - École nationale supérieure des mines de Paris-PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de psychologie du développement et de l'éducation de l'enfant (LaPsyDÉ - UMR 8240), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-MINES ParisTech - École nationale supérieure des mines de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)

Subjects
creative behavior, design fixation, fixation effect,design fixation,creative behavior, fixation effect, [SHS.GESTION]Humanities and Social Sciences/Business administration, [ SHS.GESTION ] Humanities and Social Sciences/Business administration, [SHS.GESTION] Humanities and Social Sciences/Business administration
Abstract

Converging evidences have indicated that the ability to generate creative ideas could be limited by recently activated knowledge such as examples of solutions. However, neuroimaging studies have recently demonstrated that exposure to examples did not systematically lead to fixation and could on the contrary have a stimulation effect on creativity. Our hypothesis is that there are two types of examples that C-K theory helps to characterize: (1) restrictive examples that do not change the definition or the attributes of the object, and (2) expansive examples that modify its identity by adding unexpected attributes. In two studies, we explored the impact of restrictive and expansive examples on a creative task. We then hypothesized that the introduction of an example during the task would provoke participants to propose solutions of a higher originality when the provided example was expansive. In contrast, when the provided example was restrictive, we hypothesized that the originality of the solutions would be reduced. Results confirmed that solutions proposed by the group exposed to restrictive example are less original than those given by groups exposed to expansive examples.

Published
2014

11. Global interference in the human brain during early visual processing: ERP evidence from a rapid global/local selective task

Author

Beaucousin, Virginie, Simon, Grégory, Cassotti, Mathieu, Pineau, Arlette, Houdé, Olivier, Poirel, Nicolas, Laboratoire de Psychopathologie et Neuropsychologie (LPN), Université Paris 8 Vincennes-Saint-Denis (UP8), Centre-Imagerie, Neurosciences, et Application aux Pathologies (CI-NAPS - UMR 6232), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre de Gestion Scientifique i3 (CGS i3), MINES ParisTech - École nationale supérieure des mines de Paris-PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de psychologie du développement et de l'éducation de l'enfant (LaPsyDÉ - UMR 8240), Normandie Université (NU)-Normandie Université (NU)-Université Paris Descartes - Paris 5 (UPD5)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Psychopathologie et Neuropsychologie [saint-Denis] ( LPN ), Université Paris 8 Vincennes-Saint-Denis ( UP8 ), Centre-Imagerie, Neurosciences, et Application aux Pathologies ( CI-NAPS - UMR 6232 ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de Gestion Scientifique i3 ( CGS i3 ), MINES ParisTech - École nationale supérieure des mines de Paris-PSL Research University ( PSL ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de psychologie du développement et de l'éducation de l'enfant ( LaPsyDÉ - UMR 8240 ), Normandie Université ( NU ) -Normandie Université ( NU ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Centre National de la Recherche Scientifique ( CNRS ), and MINES ParisTech - École nationale supérieure des mines de Paris-Centre National de la Recherche Scientifique (CNRS)-Université Paris sciences et lettres (PSL)

Subjects
global processing, [SCCO.NEUR]Cognitive science/Neuroscience, [ SCCO.NEUR ] Cognitive science/Neuroscience, [SCCO.PSYC]Cognitive science/Psychology, [ SCCO.PSYC ] Cognitive science/Psychology, N1, global interference effect, ERP, local processing
Abstract

International audience; Visual perception depends on the integration of local elements of a visual scene into a global frame. Evidence from behavioral studies shows that (1) the detection of the global frame is faster than the detection of the local parts, a phenomenon called the global advantage, and that (2) an interference of the global shape is also present during local processing. Together, these effects are called the global precedence effect (GPE). Even if the global advantage appears to impact neural processing as early as the first 100 ms post-stimulus, previous studies failed to find a global interference effect before 200 ms post-stimulus. Using for the first time a rapid display of letter component stimuli during a global/local selective task in which conditions with perceptual conflict, congruent and incongruent conditions were considered, the present event-related potential (ERP) study shows a global interference effect occurring as early as the time range of the N1 component. In particular, only congruent stimuli elicited similar N1 amplitude during the global and local tasks, whereas an increased of the N1 amplitude during the global task was observed (as compared to the local task) for both stimuli with perceptual conflict and incongruent stimuli. This finding corroborates the recent neural models of human visual perception.

Published
2013
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