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    An analysis of the working memory capacity paradox

    Davelaar, Eddy J. (2010) An analysis of the working memory capacity paradox. In: The 32nd Annual Meeting of the Cognitive Science Society: Cognition in Flux, 11-14 August, 2010, Portland, Oregon, USA.

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    Abstract

    In the literature on working memory (WM), a paradox exists according to which very similar memory tasks provide support for very different estimates of working memory capacity. The current paper analyses the conflicting estimates of a capacity of 4+/-1 with a capacity of 1. To this end a dynamic process model of short-term recognition is used to generate data to which exponential speed-accuracy trade-off functions are fitted. The results show that even though the process model has a capacity larger than one, the exponential SAT functions indicate a one-chunk hypothesis. Further nested modeling reveals, counter to the dominant belief, that retrieval rate is insensitive to differences in WM capacity. The resolution of the WM capacity paradox lies in the choice of dependent measure.

    Metadata

    Item Type: Conference or Workshop Item (Paper)
    Keyword(s) / Subject(s): working memory capacity, speed-accuracy tradeoff, memory retrieval, model comparison
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Depositing User: Sarah Hall
    Date Deposited: 28 Apr 2015 16:41
    Last Modified: 28 Apr 2015 16:41
    URI: http://eprints.bbk.ac.uk/id/eprint/11998

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