[en] Adults shift their attention to the right or to the left along a spatial continuum when solving additions and subtractions, respectively. Studies suggest that these shifts not only support the exact computation of the results but also anticipatively narrow down the range of plausible answers when processing the operands. However, little is known on when and how these attentional shifts arise in childhood during the acquisition of arithmetic. Here, an eye-tracker with high spatio-temporal resolution was used to measure spontaneous eye movements, used as a proxy for attentional shifts, while children of 2nd (8 y-o; N = 50) and 4th (10 y-o; N = 48) Grade solved simple additions (e.g., 4+3) and subtractions (e.g., 3-2). Gaze patterns revealed horizontal and vertical attentional shifts in both groups. Critically, horizontal eye movements were observed in 4th Graders as soon as the first operand and the operator were presented and thus before the beginning of the exact computation. In 2nd Graders, attentional shifts were only observed after the presentation of the second operand just before the response was made. This demonstrates that spatial attention is recruited when children solve arithmetic problems, even in the early stages of learning mathematics. The time course of these attentional shifts suggests that with practice in arithmetic children start to use spatial attention to anticipatively guide the search for the answer and facilitate the implementation of solving procedures. RESEARCH HIGHLIGHTS: Additions and subtractions are associated to right and left attentional shifts in adults, but it is unknown when these mechanisms arise in childhood. Children of 8-10 years old solved single-digit additions and subtractions while looking at a blank screen. Eye movements showed that children of 8 years old already show spatial biases possibly to represent the response when knowing both operands. Children of 10 years old shift attention before knowing the second operand to anticipatively guide the search for plausible answers.
Disciplines :
Neurosciences & comportement
Auteur, co-auteur :
MASSON, Nicolas ; University of Luxembourg > Faculty of Humanities, Education and Social Sciences > Department of Behavioural and Cognitive Sciences > Team Christine SCHILTZ ; Psychological Sciences Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
Dormal, Valérie; Psychological Sciences Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
SCHILTZ, Christine ; University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS) > Cognitive Science and Assessment
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Eye movements reveal that young school children shift attention when solving additions and subtractions.
Fonds De La Recherche Scientifique - FNRS Fonds National de la Recherche Luxembourg
Subventionnement (détails) :
The authors would like to thank all the children who participated to this experiment and the school teachers and staff members of the Ecole Notre Dame Immaculée (Evere, Belgium) and the Ecole Fondamentale Kinneksbond (Mamer, Luxemburg) for welcoming us and facilitating the testing sessions. We also thank Gina Andrade, Brenda Gilson, Amélie Mersch, and Adeline Rasselet for their help with the data collection. This research was supported by the Fonds National de la Recherche Scientifique (FRS‐FNRS, Belgium; grants 1.B303.21 and PDR‐T.0047.18) and by the Fonds National de la Recherche (FNR, Luxemburg; grant FNR‐INTER/FNRS/17/1178524/SNAMATH).
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