Neural correlates of implicit object identification
| Autor: | Muriel Boucart, M. E. Meyer, Glyn W. Humphreys, Jack R. Foucher, Delphine Pins |
|---|---|
| Přispěvatelé: | Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Laboratoire de chimie et biochimie des substances naturelles, Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Liquides Ioniques et Interfaces Chargées (LI2C), Université Pierre et Marie Curie - Paris 6 (UPMC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Psychopathologie et de Pharmacologie de la Cognition, IFR37-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Lithography Laboratory, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Service d'Hépato-Gastro-Entérologie, CHU Bordeaux [Bordeaux]-Hôpital Saint-André, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Boucart, Muriel |
| Rok vydání: | 2004 |
| Předmět: |
Male
MESH: Evoked Potentials Visual genetic structures MESH: Frontal Lobe MESH: Semantics MESH: Magnetic Resonance Imaging Behavioral Neuroscience Mental Processes 0302 clinical medicine Reference Values Semantic memory MESH: Brain Mapping MESH: Mental Processes Visual Cortex media_common Cerebral Cortex Brain Mapping Orientation (computer vision) 05 social sciences MESH: Reference Values Magnetic Resonance Imaging MESH: Recognition (Psychology) Temporal Lobe Frontal Lobe Semantics medicine.anatomical_structure Female [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] Psychology psychological phenomena and processes Cognitive psychology Adult Cognitive Neuroscience media_common.quotation_subject Experimental and Cognitive Psychology behavioral disciplines and activities 050105 experimental psychology 03 medical and health sciences Perception medicine Humans MESH: Temporal Lobe MESH: Form Perception 0501 psychology and cognitive sciences Neural correlates of consciousness Communication MESH: Humans Fusiform gyrus business.industry MESH: Visual Cortex Recognition Psychology MESH: Adult Object (computer science) MESH: Cerebral Cortex MESH: Male Form Perception Visual cortex MESH: Nerve Net Evoked Potentials Visual Nerve Net business MESH: Female 030217 neurology & neurosurgery |
| Zdroj: | Neuropsychologia Neuropsychologia, Elsevier, 2004, 42 (9), pp.1247-59. ⟨10.1016/j.neuropsychologia.2004.01.005⟩ Neuropsychologia, 2004, 42 (9), pp.1247-59. ⟨10.1016/j.neuropsychologia.2004.01.005⟩ Neuropsychologia, Elsevier, 2004, 42, pp.1247-1259 |
| ISSN: | 0028-3932 1873-3514 |
| DOI: | 10.1016/j.neuropsychologia.2004.01.005 |
| Popis: | International audience; The present study sought to assess neural correlates of implicit identification of objects by means of fMRI, using tasks that require matching of the physical properties of objects. Behavioural data suggests that there is automatic access to object identity when observers attend to a physical property of the form of an object (e.g. the object's orientation) and no evidence for semantic processing when subjects attend to colour. We evaluated whether, in addition to neural areas associated with decisions to specific perceptual properties, areas associated with access to semantic information were activated when tasks demanded processing of the global configuration of pictures. We used two perceptual matching tasks based on the global orientation or on the colour of line drawings. Our results confirmed behavioural data. Activations in the inferior occipital cortex, fusiform and inferior temporal gyri in both tasks (orientation and colour) account for perceptual and structural processing involved in each task. In contrast, activations in the posterior and medial parts of the fusiform gyrus, shown to be involved in explicit semantic judgements, were more pronounced in the orientation-matching task, suggesting that semantic information from the pictures is processed in an implicit way even when not required by the task. Thus, this study suggests that cortical regions usually involved in explicit semantic processing are also activated when implicit processing of objects occurs. |
| Databáze: | OpenAIRE |
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