Scientific presentation in universities or research centers (Scientific presentations in universities or research centers)
Are parity and magnitude status of Arabic digits processed automatically? An EEG study using the fast periodic visual stimulation
Poncin, Alexandre; Van Rinsveld, Amandine; Guillaume, Mathieu et al.
2017
 

Files


Full Text
Poster FPVS London Last Version.pdf
Author postprint (2.63 MB)
Download

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Parity; Magnitude; Fast periodic visual stimulation
Abstract :
[en] Many studies have shown that humans can easily extract numerical characteristics of single digits such as numerical magnitude and parity status. We investigated whether spontaneous processing of magnitude or parity status can be observed when participants are passively presented with sequences of briefly displayed Arabic digits. We assessed the parity processing by presenting seven odd digit numbers followed by one even digit (and reverse) with a sinusoidal contrast modulation at a frequency of 10HZ in one-minute sequences. The same paradigm and frequencies were used to investigate magnitude processing (i.e. seven digits smaller than five followed by one digit larger than five; and reverse) and control condition (i.e. sequence of 1-4-6-9 followed by 2-3-7 or 8). We observed a strong EEG activation on right parietal electrodes and a weaker activation on left parietal electrodes in all conditions. Left and right activations were stronger in the parity than in the other conditions, reflecting an automatic retrieval of parity information conveyed by the Arabic digits. The weaker activation during the magnitude task could reflect a more complicated access of the information corresponding to magnitude status. Right activations during the control task could be due to the fact that subjects can quickly learn to categorize numbers arbitrarily. These neuronal activation patterns are consistent with the neuro-imaging literature describing the localization of basic numerical processing. Our findings indicate that magnitude and parity status are extracted automatically from Arabic digits, even when numerical stimuli are presented without instructions at a high presentation rate.
Research center :
- Education, Culture, Cognition & Society (ECCS) > Institute of Cognitive Science and Assessment (COSA)
Disciplines :
Neurosciences & behavior
Author, co-author :
Poncin, Alexandre ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Education, Culture, Cognition and Society (ECCS)
Van Rinsveld, Amandine;  Université Libre de Bruxelles - ULB
Guillaume, Mathieu ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Education, Culture, Cognition and Society (ECCS)
Rossion, Bruno;  Université Catholique de Louvain - UCL
Schiltz, Christine ;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Education, Culture, Cognition and Society (ECCS)
Language :
English
Title :
Are parity and magnitude status of Arabic digits processed automatically? An EEG study using the fast periodic visual stimulation
Publication date :
22 February 2017
Event name :
The origins of numerical abilities: the future
Event date :
from 22-02-2017 to 23/02/2017
Audience :
International
Focus Area :
Multilingualism and Intercultural Studies
FnR Project :
FNR9161107 - The Impact Of Language Background On Basic Math Competence, 2014 (15/03/2015-14/03/2019) - Alexandre Poncin
Name of the research project :
R-AGR-0528 - NUMLANG (20150315-20160314) - SCHILTZ Christine
Funders :
FNR - Fonds National de la Recherche [LU]
Available on ORBilu :
since 07 December 2017

Statistics


Number of views
147 (19 by Unilu)
Number of downloads
53 (10 by Unilu)

Bibliography


Similar publications



Contact ORBilu