UnivTrevesV1, PascalFrancis, Corpus, bibRecord, 000238

Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: An fMRI study

Identifieur interne : 000238 ( PascalFrancis/Corpus ); précédent : 000237; suivant : 000239

Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: An fMRI study

Auteurs : Stephan E. Vogel ; Roland H. Grabner ; Michael Schneider ; Robert S. Siegler ; Daniel Ansari

Source :

Neuropsychologia [ 0028-3932 ] ; 2013.

RBID : Francis:13-0183846

Descripteurs français

Pascal (Inist)
- Encéphale, Imagerie RMN, Imagerie fonctionnelle, Lobe pariétal, Représentation spatiale, Nombre, Estimation, Etude expérimentale, Homme, Imagerie par résonance magnétique fonctionnelle.

English descriptors

KwdEn :
- Encephalon, Estimation, Experimental study, Functional imaging, Functional magnetic resonance imaging, Human, Nuclear magnetic resonance imaging, Number, Parietal lobe, Spatial representation.

Abstract

How are numerical and non-numerical magnitudes processed in the brain? Brain imaging research, primarily using comparison paradigms (i.e. judging which of two magnitudes is larger), has provided strong evidence demonstrating that the intraparietal sulcus (IPS) is a key region for processing both numerical (e.g. Arabic numerals, arrays of dots) and non-numerical magnitudes (e.g. height, brightness). These studies have suggested that there is both activation overlap and segregation in the brain regions involved in processing different dimensions of magnitude. In the present functional Magnetic Resonance Imaging (fMRI) study, we extended this line of investigation by probing the brain mechanisms underlying the mapping of numerical (Arabic numerals) and non-numerical magnitudes (brightness levels) onto a number line. Consistent with previous studies the present results revealed that number and brightness estimation was associated with overlapping activation within right lateralized areas of the posterior IPS. In addition, the contrast between number and brightness estimation revealed that bilateral anterior regions of the IPS are specifically involved in the process of estimating the position of symbolic numbers onto a number line. Furthermore, we found a significant influence of landmark reference points (0, 50 and 100) on brain activation in the right IPS for number estimation only. No regions were found to be specifically associated with brightness estimation. The results of this study reveal that the estimation of both numerical and non-numerical magnitude are associated with the engagement of a right lateralized magnitude system, but that symbolic number estimation is associated with additional engagement of bilateral regions of the anterior IPS.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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Format Inist (serveur)

NO :	FRANCIS 13-0183846 INIST
ET :	Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: An fMRI study
AU :	VOGEL (Stephan E.); GRABNER (Roland H.); SCHNEIDER (Michael); SIEGLER (Robert S.); ANSARI (Daniel)
AF :	Numerical Cognition Laboratory, Department of Psychology & Brain and Mind Institute, The University of Western Ontario, Westminster Hall, Room 325, London, Ont./N6A 3K7/Canada (1 aut., 5 aut.); Institute for Behavioral Sciences, ETH/Zurich/Suisse (2 aut.); Department of Psychology, University of Trier/Allemagne (3 aut.); Department of Psychology, Carnegie Mellon University/Etats-Unis (4 aut.); Department of Psychology, Georg-August-University of Göttingen/Allemagne (2 aut.); SCIL Center, Beijing Normal University/Beijing/Chine (4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Neuropsychologia; ISSN 0028-3932; Coden NUPSA6; Royaume-Uni; Da. 2013; Vol. 51; No. 5; Pp. 979-989; Bibl. 3/4 p.
LA :	Anglais
EA :	How are numerical and non-numerical magnitudes processed in the brain? Brain imaging research, primarily using comparison paradigms (i.e. judging which of two magnitudes is larger), has provided strong evidence demonstrating that the intraparietal sulcus (IPS) is a key region for processing both numerical (e.g. Arabic numerals, arrays of dots) and non-numerical magnitudes (e.g. height, brightness). These studies have suggested that there is both activation overlap and segregation in the brain regions involved in processing different dimensions of magnitude. In the present functional Magnetic Resonance Imaging (fMRI) study, we extended this line of investigation by probing the brain mechanisms underlying the mapping of numerical (Arabic numerals) and non-numerical magnitudes (brightness levels) onto a number line. Consistent with previous studies the present results revealed that number and brightness estimation was associated with overlapping activation within right lateralized areas of the posterior IPS. In addition, the contrast between number and brightness estimation revealed that bilateral anterior regions of the IPS are specifically involved in the process of estimating the position of symbolic numbers onto a number line. Furthermore, we found a significant influence of landmark reference points (0, 50 and 100) on brain activation in the right IPS for number estimation only. No regions were found to be specifically associated with brightness estimation. The results of this study reveal that the estimation of both numerical and non-numerical magnitude are associated with the engagement of a right lateralized magnitude system, but that symbolic number estimation is associated with additional engagement of bilateral regions of the anterior IPS.
CC :	770B03D
FD :	Encéphale; Imagerie RMN; Imagerie fonctionnelle; Lobe pariétal; Représentation spatiale; Nombre; Estimation; Etude expérimentale; Homme; Imagerie par résonance magnétique fonctionnelle
FG :	Système nerveux central; Cognition
ED :	Encephalon; Nuclear magnetic resonance imaging; Functional imaging; Parietal lobe; Spatial representation; Number; Estimation; Experimental study; Human; Functional magnetic resonance imaging
EG :	Central nervous system; Cognition
SD :	Encéfalo; Imaginería RMN; Imaginería funcional; Lóbulo parietal; Representación espacial; Número; Estimación; Estudio experimental; Hombre; Imagen por resonancia magnética funcional
LO :	INIST-11143.354000173361250220
ID :	13-0183846

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Francis:13-0183846

Le document en format XML

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<front><div type="abstract" xml:lang="en">How are numerical and non-numerical magnitudes processed in the brain? Brain imaging research, primarily using comparison paradigms (i.e. judging which of two magnitudes is larger), has provided strong evidence demonstrating that the intraparietal sulcus (IPS) is a key region for processing both numerical (e.g. Arabic numerals, arrays of dots) and non-numerical magnitudes (e.g. height, brightness). These studies have suggested that there is both activation overlap and segregation in the brain regions involved in processing different dimensions of magnitude. In the present functional Magnetic Resonance Imaging (fMRI) study, we extended this line of investigation by probing the brain mechanisms underlying the mapping of numerical (Arabic numerals) and non-numerical magnitudes (brightness levels) onto a number line. Consistent with previous studies the present results revealed that number and brightness estimation was associated with overlapping activation within right lateralized areas of the posterior IPS. In addition, the contrast between number and brightness estimation revealed that bilateral anterior regions of the IPS are specifically involved in the process of estimating the position of symbolic numbers onto a number line. Furthermore, we found a significant influence of landmark reference points (0, 50 and 100) on brain activation in the right IPS for number estimation only. No regions were found to be specifically associated with brightness estimation. The results of this study reveal that the estimation of both numerical and non-numerical magnitude are associated with the engagement of a right lateralized magnitude system, but that symbolic number estimation is associated with additional engagement of bilateral regions of the anterior IPS.</div>
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<s4>CD</s4>
<s5>96</s5>
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<fC03 i1="10" i2="X" l="SPA"><s0>Imagen por resonancia magnética funcional</s0>
<s4>CD</s4>
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<server><NO>FRANCIS 13-0183846 INIST</NO>
<ET>Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: An fMRI study</ET>
<AU>VOGEL (Stephan E.); GRABNER (Roland H.); SCHNEIDER (Michael); SIEGLER (Robert S.); ANSARI (Daniel)</AU>
<AF>Numerical Cognition Laboratory, Department of Psychology & Brain and Mind Institute, The University of Western Ontario, Westminster Hall, Room 325, London, Ont./N6A 3K7/Canada (1 aut., 5 aut.); Institute for Behavioral Sciences, ETH/Zurich/Suisse (2 aut.); Department of Psychology, University of Trier/Allemagne (3 aut.); Department of Psychology, Carnegie Mellon University/Etats-Unis (4 aut.); Department of Psychology, Georg-August-University of Göttingen/Allemagne (2 aut.); SCIL Center, Beijing Normal University/Beijing/Chine (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Neuropsychologia; ISSN 0028-3932; Coden NUPSA6; Royaume-Uni; Da. 2013; Vol. 51; No. 5; Pp. 979-989; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>How are numerical and non-numerical magnitudes processed in the brain? Brain imaging research, primarily using comparison paradigms (i.e. judging which of two magnitudes is larger), has provided strong evidence demonstrating that the intraparietal sulcus (IPS) is a key region for processing both numerical (e.g. Arabic numerals, arrays of dots) and non-numerical magnitudes (e.g. height, brightness). These studies have suggested that there is both activation overlap and segregation in the brain regions involved in processing different dimensions of magnitude. In the present functional Magnetic Resonance Imaging (fMRI) study, we extended this line of investigation by probing the brain mechanisms underlying the mapping of numerical (Arabic numerals) and non-numerical magnitudes (brightness levels) onto a number line. Consistent with previous studies the present results revealed that number and brightness estimation was associated with overlapping activation within right lateralized areas of the posterior IPS. In addition, the contrast between number and brightness estimation revealed that bilateral anterior regions of the IPS are specifically involved in the process of estimating the position of symbolic numbers onto a number line. Furthermore, we found a significant influence of landmark reference points (0, 50 and 100) on brain activation in the right IPS for number estimation only. No regions were found to be specifically associated with brightness estimation. The results of this study reveal that the estimation of both numerical and non-numerical magnitude are associated with the engagement of a right lateralized magnitude system, but that symbolic number estimation is associated with additional engagement of bilateral regions of the anterior IPS.</EA>
<CC>770B03D</CC>
<FD>Encéphale; Imagerie RMN; Imagerie fonctionnelle; Lobe pariétal; Représentation spatiale; Nombre; Estimation; Etude expérimentale; Homme; Imagerie par résonance magnétique fonctionnelle</FD>
<FG>Système nerveux central; Cognition</FG>
<ED>Encephalon; Nuclear magnetic resonance imaging; Functional imaging; Parietal lobe; Spatial representation; Number; Estimation; Experimental study; Human; Functional magnetic resonance imaging</ED>
<EG>Central nervous system; Cognition</EG>
<SD>Encéfalo; Imaginería RMN; Imaginería funcional; Lóbulo parietal; Representación espacial; Número; Estimación; Estudio experimental; Hombre; Imagen por resonancia magnética funcional</SD>
<LO>INIST-11143.354000173361250220</LO>
<ID>13-0183846</ID>
</server>
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Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: An fMRI study

Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: An fMRI study

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