Variability in response criteria affects estimates of conscious identification and unconscious semantic priming.

Full Abstract

Three experiments examined the role of response criteria in a masked semantic priming paradigm using an exclusion task. Experiment 1 used on-line prime-report ("report the prime if you saw it") and exclusion instructions in which participants were told to avoid completing a word stem (e.g. mo-) with a word related to a prime (e.g. cash) flashed for 0, 38 or 212ms. Semantic priming (i.e. exclusion failure) was significant in the items analysis, but was moderated by peoples' ability to report the prime in the participant analysis. Prime-report thresholds in Experiment 2 were made more liberal by instructing participants to guess on every trial. Prime-report increased from Experiment 1 as exclusion failures were eliminated. Experiment 3 clarified the relationship between awareness and prime identification using an on-line measure of confidence and different liberal prime report instructions. The current findings suggest that the ability to act upon (via exclusion performance) and report information in a masked prime is determined by a variable response criterion, which can be manipulated as an independent variable.

Author information

Author/s: Bengson, Jesse J (JJ); Hutchison, Keith A (KA);

Affiliation: Department of Psychology, 304 Traphagen Hall, Montana State University, Bozeman, MT 59717-3440, USA.

Journal and publication information

Publication Type: Journal Article

Journal: Consciousness and cognition (Conscious Cogn), published in United States. (Language: eng)

Reference: 2007-Dec; vol 16 (issue 4) : pp 785-96

Dates: Created 2007/11/20; Completed 2008/04/07;

PMID: 17276086, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

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