意识和无意识知觉:注意和刺激特性间的相互补偿

该研究基于Exclusion任务，利用质的差异的研究范式，不仅确立了意识和无意识知觉在行为结果上的质的差异，而且发现刺激特性和注意在决定知觉意识时存在相互补偿的现象。在实验一中，当靶字短暂呈现时。被试用靶字补笔的比率高于基线水平；而当延长靶字呈现时间或提高对靶字的注意水平时，出现反转现象一用靶字补笔的比率低于基线水平。相对应地，在实验二中，分散注意条件下被试用靶字补笔的比率高于基线水平；而当注意集中或在分散注意条件下延长呈现时间时，出现了反转现象。

CONSCIOUS AND UNCONSCIOUS PERCEPTION:THE TRADE-OFFS BETWEEN ATTENTION AND STIMULUS QUALITY

This study provides a different perspective on the concept of perceptual awareness by examining the possible trade-off effects of attention and stimulus duration through a character-exclusion task. In Experiment 1, the use of target characters in completing character radicals occurred more often than the baseline expectation when they were presented for a short time. The reverse was observed when increasing either the attention to or the duration of the target characters. Similarly, in Experiment 2, target characters were used to complete the radicals more often than the baseline under the divided-attention condition. The reverse was again observed when either under the focused-attention condition or when the divided-attention condition was combined with the long stimulus duration condition. These results suggest trade-offs between attention and stimulus quality in defining perceptual awareness.