A Magnitude Code Common to Numerosities and Number Symbols in Human Intraparietal Cortex
| Autor: | Manuela Piazza, Denis Le Bihan, Stanislas Dehaene, Philippe Pinel |
|---|---|
| Přispěvatelé: | Laboratoire Toulousain de Technologie et d'Ingénierie des Systèmes (LATTIS), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J)-IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J), Neuroimagerie cognitive (LCogn), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Human Brain Research Center [Kyoto] (HBRC), Kyoto University [Kyoto], Service Hospitalier Frédéric Joliot (SHFJ), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Service NEUROSPIN (NEUROSPIN), IFR de Neuroimagerie Fonctionnelle (IFR 49), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), National Institutes of Health [Bethesda] (NIH), Chaire Psychologie cognitive expérimentale, Collège de France (CdF (institution)), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT), Kyoto University, Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Collège de France - Chaire Psychologie cognitive expérimentale |
| Rok vydání: | 2007 |
| Předmět: |
Adult
[SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging Neuroscience(all) Intraparietal sulcus behavioral disciplines and activities 050105 experimental psychology Arabic numerals MESH: Magnetic Resonance Imaging Numeral system 03 medical and health sciences Mental Processes 0302 clinical medicine Parietal Lobe Humans Approximate number system 0501 psychology and cognitive sciences MESH: Mental Processes Mathematics MESH: Parietal Lobe Communication SYSBIO MESH: Humans business.industry General Neuroscience 05 social sciences MESH: Mathematics fMRI adaptation MESH: Adult Numerosity adaptation effect Pattern recognition Adaptation Physiological Magnetic Resonance Imaging MESH: Adaptation Physiological Mental calculation Artificial intelligence SYSNEURO business 030217 neurology & neurosurgery Coding (social sciences) |
| Zdroj: | Neuron Neuron, Elsevier, 2007, 53 (2), pp.293-305. ⟨10.1016/j.neuron.2006.11.022⟩ Neuron, 2007, 53 (2), pp.293-305. ⟨10.1016/j.neuron.2006.11.022⟩ |
| ISSN: | 0896-6273 |
| DOI: | 10.1016/j.neuron.2006.11.022 |
| Popis: | International audience; Activation of the horizontal segment of the intraparietal sulcus (hIPS) has been observed in various number-processing tasks, whether numbers were conveyed by symbolic numerals (digits, number words) or by nonsymbolic displays (dot patterns). This suggests an abstract coding of numerical magnitude. Here, we critically tested this hypothesis using fMRI adaptation to demonstrate notation-independent coding of numerical quantity in the hIPS. Once subjects were adapted either to dot patterns or to Arabic digits, activation in the hIPS and in frontal regions recovered in a distance-dependent fashion whenever a new number was presented, irrespective of notation changes. This remained unchanged when analyzing the hIPS peaks from an independent localizer scan of mental calculation. These results suggest an abstract coding of approximate number common to dots, digits, and number words. They support the idea that symbols acquire meaning by linking neural populations coding symbol shapes to those holding nonsymbolic representations of quantities. |
| Databáze: | OpenAIRE |
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