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Effects of Response and Presentation Format on Measures of Approximate Number System Acuity
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Psychology.
2013 (English)In: Proceedings of the 35th Annual Conference of the Cognitive Science Society / [ed] M. Knauff, M. Pauen, N. Sebanz, I. Wachsmuth, Austin, TX: Cognitive Science Society, Inc., 2013, 2908-2913 p.Conference paper, Published paper (Refereed)
Abstract [en]

Human adults, infants, and non-human animals are believed to be equipped with an Approximate Number System (ANS) supporting non-symbolic representations of numerical magnitudes. Recent research has questioned both the validity and reliability of tasks intended to measure acuity in the ANS. Issues with validity and reliability might be due to differences in methodology. In the present study, we compare four tasks designed to measure ANS acuity, using a within-subjects design. The tasks are compared with respect to response and presentation format effects previously studied in the psychophysics literature, but largely ignored in the ANS literature. We find a presentation format effect and show that when non-symbolic numerical stimuli are presented sequentially the magnitude of the second stimulus is overestimated. Further, the results indicate that people’s sensitivity to differentiate between non-symbolic numerosities is dependent on response format. The implications of the results to measures of ANS acuity are discussed.

Place, publisher, year, edition, pages
Austin, TX: Cognitive Science Society, Inc., 2013. 2908-2913 p.
Keyword [en]
Approximate number system, response format, presentation format, validity, reliability
National Category
Psychology (excluding Applied Psychology)
Research subject
Psychology
Identifiers
URN: urn:nbn:se:uu:diva-209394ISBN: 978-0-9768318-9-1 (print)OAI: oai:DiVA.org:uu-209394DiVA: diva2:657180
Conference
The 35th Annual Meeting of the Cognitive Science Society, Berlin, Germany, July 31-August 3, 2013
Funder
Swedish Research Council
Available from: 2013-10-18 Created: 2013-10-18 Last updated: 2013-10-30Bibliographically approved

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Lindskog, MarcusWinman, AndersJuslin, Peter

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