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ERIC Number: EJ817709
Record Type: Journal
Publication Date: 2008
Pages: 20
Abstractor: As Provided
Reference Count: 38
ISSN: ISSN-0033-2933
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; Hayden, Eilish; Barnes-Holmes, Yvonne; Stewart, Ian
Psychological Record, v58 n4 p497-516 Fall 2008
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. (Contains 2 footnotes and 4 figures.)
Southern Illinois University Carbondale. Mailcode 4609, Rehabilitation Institute, Carbondale, IL 62901-4609. Tel: 618-536-7704; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A