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    The Implicit Relational Assessment Procedure (IRAP) as a response-time and event-related potentials methodology for testing natural verbal relations: A preliminary study


    Barnes-Holmes, Dermot and Hayden, Eilish and Barnes-Holmes, Yvonne and Stewart, Ian (2008) The Implicit Relational Assessment Procedure (IRAP) as a response-time and event-related potentials methodology for testing natural verbal relations: A preliminary study. The Psychological record, 58 (4). pp. 497-516. ISSN 0033-2933

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    Abstract

    The current article reports the first attempt to test the Implicit Relational Assessment Procedure (IRAP), as a group-based measure of natural verbal relations, using both response-latency and event-related potentials as dependent variables. On each trial of the IRAP, participants were presented with 1 of 2 attribute stimuli (“Pleasant” or “Unpleasant”), a positive (e.g., “Love”) or negative (e.g., “Murder”) target stimulus, and 2 relational terms, “Similar” and “Opposite,” as response options. Participants were required to respond as quickly and accurately as possible across blocks of trials, with half of the blocks requiring responses that were deemed consistent (e.g., Pleasant–Love–Similar), and the other half inconsistent (e.g., Pleasant–Love–Opposite), with natural verbal relations. Shorter mean latencies were predicted for consistent than for inconsistent blocks. Two separate experiments supported this prediction. Event-related potentials, gathered during the second experiment, also proved to be sensitive to the IRAP, yielding more negative waveforms for inconsistent relative to consistent blocks of trials. A theoretical interpretation of the IRAP effect is offered, and important directions for future research are highlighted.

    Item Type: Article
    Keywords: Implicit Relational Assessment Procedure; IRAP; natural verbal relations;
    Academic Unit: Faculty of Science and Engineering > Psychology
    Item ID: 4973
    Depositing User: Yvonne Barnes-Holmes
    Date Deposited: 21 May 2014 14:35
    Journal or Publication Title: The Psychological record
    Publisher: Springer Verlag
    Refereed: Yes
    URI:

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