Pratt J, Hillis J, Gold J M
Department of Psychology, University of Toronto, Ontario, Canada.
Psychon Bull Rev. 2001 Sep;8(3):489-95. doi: 10.3758/bf03196183.
The present experiment was conducted in order to examine the role of cue-target discriminability on early occurring attentional cuing effects and late occurring inhibition of return (IOR). The experiment used a single target stimulus in conjunction with three different cue stimuli. The cues were the same as the target, different in color, shape, and luminance to the target, or did not spatially overlap with the target. At shorter stimulus onset asynchronies (SOAs; 100 and 200 msec), attentional cuing effects were only found with the nonoverlapping cues. However, at longer SOAs (400 and 800 msec), approximately equal IOR effects were found with all three types of cues. The results indicated that the physical characteristics of the cues and targets affected the pattern of reaction times at the shorter SOAs but not at the longer SOAs. The conclusion is that the biphasic pattern of early facilitation and late inhibition following a peripheral cue should not be considered the definitive signature of the peripheral cuing paradigm.
进行本实验是为了检验线索-目标可辨别性在早期出现的注意线索效应和晚期出现的返回抑制（IOR）中的作用。该实验使用单个目标刺激与三种不同的线索刺激相结合。线索与目标相同、在颜色、形状和亮度上与目标不同，或者与目标在空间上不重叠。在较短的刺激起始异步时间（SOA；100和200毫秒）时，仅在不重叠的线索中发现了注意线索效应。然而，在较长的SOA（400和800毫秒）时，在所有三种类型的线索中发现了大致相等的IOR效应。结果表明，线索和目标的物理特征在较短的SOA时影响反应时间模式，但在较长的SOA时则不然。结论是，外周线索后早期促进和晚期抑制的双相模式不应被视为外周线索范式的决定性特征。
