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  • Neural correlates of deductive reasoning: An ERP study with the Wason Selection Task

    Author(s)
    Cutmore, Tim RH
    Halford, Graeme S
    Wang, Ya
    Ramm, Brentyn J
    Spokes, Tara
    Shum, David HK
    Griffith University Author(s)
    Shum, David
    Cutmore, Timothy
    Halford, Graeme S.
    Ramm, Brentyn J.
    Spokes, Tara
    Year published
    2015
    Metadata
    Show full item record
    Abstract
    The Wason Selection Task (WST) is a well-known test of reasoning in which one turns over cards to test a rule about the two faces. Modifications were made to the WST to enable more direct and analytical investigation of reasoning processes. The modifications included extensive training to reduce variations in task interpretation, isolation of working memory in the decision phase, a separate rule for each card and variations in the form of the rule (number-letter as well as letter-number), separate scoring for each card, and inclusion of control cards that could be recognized by features without relational processing. The ...
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    The Wason Selection Task (WST) is a well-known test of reasoning in which one turns over cards to test a rule about the two faces. Modifications were made to the WST to enable more direct and analytical investigation of reasoning processes. The modifications included extensive training to reduce variations in task interpretation, isolation of working memory in the decision phase, a separate rule for each card and variations in the form of the rule (number-letter as well as letter-number), separate scoring for each card, and inclusion of control cards that could be recognized by features without relational processing. The cognitive complexity of each card was also analyzed to enable investigation of this factor. Behavioral and event-related potential data were recorded. Negative cards differed from positive cards and control cards were differentiated from cards involved in inferences. The N2 component differentiated the negative conditions (not-P, not-Q cards) from the positive conditions (P, Q cards). The P3 component was largest for control and P cards (the simpler conditions). The late slow wave tended to show more sustained processing of not-P, not-Q and Q cards and was little influenced by the simpler control and P cards. Effects were interpreted in terms of cognitive complexity. In particular, the negative conditions had a larger N2 response than the positive conditions, reflecting greater cognitive complexity of the former and their sustained processing.
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    Journal Title
    International Journal of Psychophysiology
    Volume
    98
    Issue
    3
    DOI
    https://doi.org/10.1016/j.ijpsycho.2015.07.004
    Subject
    Biomedical and clinical sciences
    Psychology
    Publication URI
    http://hdl.handle.net/10072/101868
    Collection
    • Journal articles

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