Hilchey Matthew D, Rajsic Jason, Huffman Greg, Pratt Jay
Department of Psychology, University of Toronto, 100 St. George St., Toronto, Ontario, M5S 3G3, Canada.
Atten Percept Psychophys. 2017 Apr;79(3):807-819. doi: 10.3758/s13414-016-1262-9.
When there is a relatively long interval between two successive stimuli that must be detected or localized, there are robust processing costs when the stimuli appear at the same location. However, when two successive visual stimuli that must be identified appear at the same location, there are robust same location costs only when the two stimuli differ in their responses; otherwise same location benefits are observed. Two separate frameworks that inhibited attentional orienting and episodic integration, respectively, have been proposed to account for these patterns. Recent findings hint at a possible reconciliation between these frameworks-requiring a response to an event in between two successive visual stimuli may unmask same stimulus and same location costs that are otherwise obscured by episodic integration benefits in identification tasks. We tested this hybrid account by integrating an intervening response event with an identification task that would otherwise generate the boundary between same location benefits and costs. Our results showed that the intervening event did not alter the boundary between location repetition benefits and costs nor did it reliably or unambiguously reverse the common stimulus-response repetition benefit. The findings delimit the usefulness of an intervening event for disrupting episodic integration, suggesting that effects from intervening response events are tenuous. The divide between attention and feature integration accounts is delineated in the context of methodological and empirical considerations.
当必须检测或定位的两个连续刺激之间存在相对较长的间隔时，若刺激出现在同一位置，会产生显著的处理成本。然而，当必须识别的两个连续视觉刺激出现在同一位置时，只有在两个刺激的反应不同时，才会有显著的同位置成本；否则会观察到同位置益处。已经提出了两个分别抑制注意定向和情景整合的独立框架来解释这些模式。最近的研究结果暗示了这两个框架之间可能的调和——在两个连续视觉刺激之间对一个事件做出反应可能会揭示出在识别任务中原本被情景整合益处所掩盖的相同刺激和相同位置成本。我们通过将一个中间反应事件与一个识别任务相结合来测试这种混合解释，否则该识别任务会产生同位置益处和成本之间的界限。我们的结果表明，中间事件既没有改变位置重复益处和成本之间的界限，也没有可靠且明确地逆转常见的刺激 - 反应重复益处。这些发现界定了中间事件对破坏情景整合的有效性，表明中间反应事件的影响是微弱的。在方法学和实证考量的背景下，划分了注意和特征整合解释之间的界限。
