A comparison of explicit and implicit tasks of numerical processing: The case of non-symbolic stimuli

Abstract

Event Abstract Back to Event A comparison of explicit and implicit tasks of numerical processing: The case of non-symbolic stimuli Emmy Defever1*, Delphine Sasanguie1 and Bert Reynvoet1 1 Katholieke Universiteit Leuven, Subfaculty of Psychology and Educational Sciences, Belgium The processing of quantity is crucial in daily life and is thought to build upon an innate representation of magnitude. The development of number processing has been intensively studied examining the performance on basic number tasks. The results are usually explained by assuming a magnitude representation akin to a mental number line. On this mental number line, magnitudes are represented on a number line with partially overlapping representations for nearby numbers with decreasing overlap (i.e. more exact representations) with increasing age. Neuroimaging studies repeatedly show the involvement of the intraparietal sulcus (IPS) in magnitude processing and consequently in the performance on these basic number tasks. Despite its popularity, the number line concept fails to account for certain recent empirical findings showing inconsistencies between explicit (e.g. number comparison) and implicit (e.g. priming) number tasks. In this contribution, we want to compare the performance of adults and children on different implicit and explicit measures of quantity representations (e.g. number comparison, same-different judgments, priming test and number line estimation). In a first study with adults, we will conduct the before mentioned tasks and investigate which behavioral measure is related to mathematical ability. In a second study, we will take the same approach in a cross-sectional study with children. Hereby, our goals are threefold: 1) investigating whether the behavioral indicators are reliable 2) compare explicit and implicit behavioral indicators of magnitude processing and 3) examining which measure relates to the performance of children in the classroom and the performance of adults on a math test, as an indicator of their general mathematical ability. In both studies, all tasks will be presented with symbolic as well as with non-symbolic stimuli. This poster will focus on the non-symbolic part. Conference: EARLI SIG22 - Neuroscience and Education, Zurich, Switzerland, 3 Jun - 5 Jun, 2010. Presentation Type: Poster Presentation Topic: Number processing Citation: Defever E, Sasanguie D and Reynvoet B (2010). A comparison of explicit and implicit tasks of numerical processing: The case of non-symbolic stimuli. Front. Neurosci. Conference Abstract: EARLI SIG22 - Neuroscience and Education. doi: 10.3389/conf.fnins.2010.11.00036 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 31 May 2010; Published Online: 31 May 2010. * Correspondence: Emmy Defever, Katholieke Universiteit Leuven, Subfaculty of Psychology and Educational Sciences, Kortrijk, Belgium, emmy.defever@kuleuven-kortrijk.be Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Emmy Defever Delphine Sasanguie Bert Reynvoet Google Emmy Defever Delphine Sasanguie Bert Reynvoet Google Scholar Emmy Defever Delphine Sasanguie Bert Reynvoet PubMed Emmy Defever Delphine Sasanguie Bert Reynvoet Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.