Department of Psychology and Sociology, Georgia Southwestern State University, 800 GSW Drive, Americus, GA 31709, USA.
Conscious Cogn. 2011 Dec;20(4):1221-31. doi: 10.1016/j.concog.2011.03.016. Epub 2011 Apr 9.
The Objective Threshold/Strategic Model (OT/S) proposes that strong, qualitative inferences of unconscious perception can be made if the relationship between perceptual sensitivity (typically priming effects) and stimulus visibility is nonlinear and nonmonotonic. The model proposes a nadir in priming effects at the objective identification threshold (identification d'=0). These predictions were tested with masked semantic priming and repetition priming of a lexical decision task. The visibility of the prime stimuli was systematically varied above and below the objective identification threshold. The obtained relationship between prime visibility and priming facilitation was nonlinear, but the results failed to confirm a nadir in priming effects at the objective identification threshold. We conclude that the objective identification threshold does not necessarily indicate the point where presumably unconscious priming effects might be inhibited by conscious cognitive processes.
客观阈限/策略模型（OT/S）提出，如果知觉敏感性（通常是启动效应）与刺激可见性之间的关系是非线性和非单调的，那么可以对无意识知觉做出强有力的、定性的推断。该模型提出，在客观识别阈限（识别 d'=0）处，启动效应会出现最低点。这些预测在掩蔽语义启动和词汇判断任务的重复启动中得到了检验。启动刺激的可见性在客观识别阈限以上和以下被系统地改变。在获得的启动刺激可见性和启动促进之间的关系是非线性的，但结果未能证实客观识别阈限处的启动效应最低点。我们的结论是，客观识别阈限不一定表明无意识启动效应可能被有意识的认知过程抑制的点。
