Département de psychologie, Université de Fribourg, Fribourg, Switzerland.
Département de Psychoéducation et de Psychologie, Université du Québec en Outaouais, Gatineau, Québec, Canada.
Atten Percept Psychophys. 2021 May;83(4):1777-1795. doi: 10.3758/s13414-020-02158-0. Epub 2020 Oct 20.
When two tasks, Task 1 and Task 2, are conducted in close temporal proximity and a separate speeded response is required for each target (T1 and T2), T2 report performance decreases as a function of its temporal proximity to T1. This so-called psychological refractory period (PRP) effect on T2 processing is largely assumed to reflect interference from T1 response selection on T2 response selection. However, interference on early perceptual processing of T2 has been observed in a modified paradigm, which required changes in visual-spatial attention, sensory modality, task modality, and response modality across targets. The goal of the present study was to investigate the possibility of early perceptual interference by systematically and iteratively removing each of these possible non perceptual confounds, in a series of four experiments. To assess T2 visual memory consolidation success, T2 was presented for a varying duration and immediately masked. T2 report accuracy, which was taken as a measure of perceptual-encoding or consolidation-success, decreased across all experimental control conditions as T1-T2 onset proximity increased. We argue that our results, in light of previous studies, show that central processing of a first target, responsible for the classical PRP effect, also interferes with early perceptual processing of a second target. We end with a discussion of broader implications for psychological refractory period and attentional blink effects.
当两个任务，任务 1 和任务 2，在时间上非常接近进行，并且每个目标（T1 和 T2）都需要单独的快速反应时，T2 的报告表现会随着其与 T1 的时间接近而下降。这种所谓的 T2 处理的心理不应期（PRP）效应，在很大程度上被认为反映了 T1 反应选择对 T2 反应选择的干扰。然而，在一个修改后的范式中，已经观察到 T2 的早期感知处理中的干扰，该范式要求在目标之间改变视觉空间注意、感觉模态、任务模态和反应模态。本研究的目的是通过在一系列四个实验中系统地和迭代地消除这些可能的非感知混淆，来研究早期感知干扰的可能性。为了评估 T2 视觉记忆巩固的成功，T2 呈现了不同的持续时间，并立即进行了掩蔽。T2 的报告准确性，作为感知编码或巩固成功的衡量标准，在所有实验控制条件下，随着 T1-T2 起始接近度的增加而下降。我们认为，根据先前的研究，我们的结果表明，第一个目标的中央处理，负责经典的 PRP 效应，也会干扰第二个目标的早期感知处理。最后，我们讨论了心理不应期和注意眨眼效应的更广泛的意义。
