Hommuk Karita, Bachmann Talis, Oja Andra
Tallinn University.
J Gen Psychol. 2008 Apr;135(2):167-81. doi: 10.3200/GENP.135.2.167-182.
The flash-lag effect (FLE), when studied in rapid serial visual presentations, has shown that participants perceived a target presented in a stream prior to its simultaneous out-of-stream replica (T. Bachmann & E. Põder, 2001). In the present study, the authors introduced a precue to the single flashed, isolated target to see if drawing bottom-up attention to the flash also would compensate for the effects of the mechanisms that influence the processing of in-stream items. The extent of the flash-lead effect in the precued condition was considerably larger than the lead-effect in earlier experiments and in a control experiment where no precue was presented for the flashed targets. For the first 200-250 ms from the beginning of the stream, flash-lead dominated. The FLE did not appear until 400 ms after stream onset. The authors interpret results as the combined relative effects of in-stream target masking, in-stream sensory facilitation, and spatial-attentional facilitation.
在快速序列视觉呈现中研究闪光滞后效应（FLE）时发现，参与者会在流内目标与其同步的流外复制品同时呈现之前，察觉到流内呈现的目标（T.巴赫曼和E.波德，2001）。在本研究中，作者对单个闪现的孤立目标引入了一个预线索，以探究将自下而上的注意力吸引到闪光上是否也能抵消影响流内项目加工的机制的作用。预线索条件下的闪光超前效应程度明显大于早期实验以及未对闪现目标呈现预线索的对照实验中的超前效应。在流开始后的最初200 - 250毫秒内，闪光超前占主导。直到流开始后400毫秒，FLE才出现。作者将结果解释为流内目标掩蔽、流内感觉促进和空间注意促进的综合相对效应。
