干扰子的激活、抑制及其加工时程

针对有关干扰子激活和抑制加工的时程研究存在的分歧，采用干扰效应和负启动效应双指标，探讨不同知觉负载水平下干扰子的激活和抑制及其加工时程问题。结果显示：在同一实验条件下采用干扰效应和负启动效应双指标可将干扰子加工过程分离为激活和抑制两个阶段；激活加工时程发生在选择性注意早期，抑制加工时程发生在选择性注意的早期至中期之间。这一结果与Lavie等的推测及认知神经科学研究成果均有异同。

Distractor Activation and Inhibition with the Time Courses of the Process

Aiming at there being differcnce concerning the time courses of distractor activation process and inhibition process,by using two indexes of interference effect and negative priming effect, this paper probed into the time courses of distractor activation process and inhibition process under different perceptual load. Results showed that： these two indexes could distinguish distractor activation process from inhibition process under same experimental condition; The time courses of distractor activation process emerged at early stage of selective attention, while distractor inhibition process emerged between early stage and the medium stage. These results all had similarities and differences compared with Lavie＇s postulation and cognitive neuroscience research findings.