Are multiplication facts stored only in the phonological format?

Abstract

Event Abstract Back to Event Are multiplication facts stored only in the phonological format? Marta Sobanska1* 1 University of Finance and Management, Poland According to the triple-code model (Dehaene&Cohen, 1995), multiplication problems and its results are stored in the long term memory as the phonological sequences of words, eg. "three times four, twelve". The aim of the present studies is to verify the phonological storage hypothesis, which postulates that the phonological representation of numbers is the only kind of arithmetical facts of representation. Study 1: A case study of a patient MF, a 76-year-old chemistry teacher after a left hemisphere infarction. MF suffered from a mixed aphasia with moderate speaking and mild comprehension impairments. Eighty one problems (from 1x1 to 9x9) were presented to MF on two sheets of paper. Her task consisted on reading them aloud and giving the result in two ways: written and orally. Although she made 35 reading errors (43%), she gave the correct answers to 77 of 81 problems (95%) in the written modality, and to 70 of 81 problems (86%) in the spoken one. Study 2: A total of 12 healthy right-handed people (6 men, average age = 52) were tested. Each subject performed 81 multiplication problems (from 1x1 to 9x9), and 36 subtraction problems (from 2-1 to 9-8) four times, in blocks which differed in format of stimuli presentation and response (Arabic digits or spoken number words). The influence of the presentation/response format on the reaction time of multiplication and "small" multiplication (problems which resulted were not larger than 25) was different: in the case of "small" multiplication, the response latencies were similar to those of subtraction. The findings are discussed in the context of the triple-code model and other theories concerning the representations underlying arithmetic problem solving. Keywords: Neural Bases, Problem Solving Conference: XI International Conference on Cognitive Neuroscience (ICON XI), Palma, Mallorca, Spain, 25 Sep - 29 Sep, 2011. Presentation Type: Poster Presentation Topic: Poster Sessions: Neural Bases of Arithmetics and Numerosity Citation: Sobanska M (2011). Are multiplication facts stored only in the phonological format?. Conference Abstract: XI International Conference on Cognitive Neuroscience (ICON XI). doi: 10.3389/conf.fnhum.2011.207.00103 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: 16 Nov 2011; Published Online: 25 Nov 2011. * Correspondence: Dr. Marta Sobanska, University of Finance and Management, Warsaw, Poland, marta_sobanska@yahoo.com 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 Marta Sobanska Google Marta Sobanska Google Scholar Marta Sobanska PubMed Marta Sobanska 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.