Language, Visual Working Memory, and Dot Subtraction: What Counts?
To investigate cognitive factors affecting subtraction of visual objects, we adapted the dot subtraction task developed by Pica, Lemer, Izard, and Dehaene (2004), who used it to investigate calculation by the Mundurukú, an indigene group in Brazil that has a limited number word vocabulary. In the do...
| Publicado en: | Canadian Journal of Experimental Psychology / Revue Canadienne de Psychologie Expérimentale Vol. 70; no. 1; pp. 78 - 86 |
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| Autores principales: | , |
| Formato: | Artículo |
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Canadian Psychological Association
Mar2016
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=113232018&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 113232018 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 11961961 CJX jtl: Canadian Journal of Experimental Psychology / Revue Canadienne de Psychologie Expérimentale issn: 11961961 maglogo: N pubinfo: dt: Mar2016 vid: 70 iid: 1 pid: 98 pub: Canadian Psychological Association artinfo: ui: 113232018 10.1037/cep0000067 ppf: 78 ppct: 8 formats: fmt: @attributes: type: P size: 371KB tig: atl: Language, Visual Working Memory, and Dot Subtraction: What Counts? aug: au: Briere, Jennifer L. Campbell, Jamie I. D. affil: University of Saskatchewan su: Analysis of variance Cognition Language & languages Memory Mathematics Thought & thinking Visual perception sug: subj: Analysis of variance Cognition Language & languages Memory Mathematics Thought & thinking Visual perception keyword: arithmetic enumeration language visual working memory énumération arithmétique langage mémoire de travail visuelle arithmetic enumeration language visual working memory énumération arithmétique langage mémoire de travail visuelle ab: To investigate cognitive factors affecting subtraction of visual objects, we adapted the dot subtraction task developed by Pica, Lemer, Izard, and Dehaene (2004), who used it to investigate calculation by the Mundurukú, an indigene group in Brazil that has a limited number word vocabulary. In the dot subtraction task, briefly displayed arrays of moving dots are used to represent the quantities for subtraction. We tested 40 Canadian university students' dot enumeration, Arabic digit subtraction, visual working memory, and performance on the dot subtraction task with dot display durations of 2, 1.5, 1, and .5 s. In the 2 s condition, error rates were uniformly low, whereas in the .5 s condition, error rates increased sharply as the minuend increased from 4 to 8, as was observed with the Mundurukú. Individual differences in dot subtraction accuracy were predicted by dot enumeration skill with longer dot display durations but were predicted by visual working memory efficiency with shorter durations. Pica et al. (2004) attributed the Mundurukú participants' very poor subtraction to the absence of counting words, but our results show that a shift to reliance on visual working memory is a nonlinguistic factor that comes into play in the dot subtraction task when time to encode the dot arrays is limited. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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