Cortex ( IF 3.2 ) Pub Date : 2020-10-06 , DOI: 10.1016/j.cortex.2020.09.018 Alfredo Spagna 1 , Tingting Wu 2 , Kevin Kim 2 , Jin Fan 2
Although we have demonstrated that the executive control of attention acts supramodally as shown by significant correlation between conflict effect measures in visual and auditory tasks, no direct evidence of the equivalence in the computational mechanisms governing the allocation of executive control resources within and across modalities has been found. Here, in two independent groups of 40 participants each, we examined the interaction effect of conflict processing in both unimodal (visual) and crossmodal (visual and auditory) dual-conflict paradigms (flanker conflict processing in Task 1 and then in the following Task 2) with a manipulation of the stimulus onset asynchrony (SOA). In both the unimodal and the crossmodal dual-conflict paradigms, the conflict processing of Task 1 significantly interfered with the processing of Task 2 when the SOA was short, as shown by an additive interference effect of Task 1 on Task 2 under the time constraints. These results suggest that there is a unified supramodal entity that supports conflict processing by implementing comparable mechanisms in unimodal and crossmodal scenarios.
中文翻译:
超峰执行控制的注意:单峰和跨峰双重冲突效应的证据
尽管我们已经证明,注意力的执行控制是超模态的,如视觉和听觉任务中的冲突效果度量之间的显着相关性所示,但尚无直接证据表明控制执行控制资源在模态内和模态之间分配的计算机制是等效的。找到了。在这里,在两个独立的小组中,每个小组有40名参与者,我们研究了单峰(视觉)和跨峰(视觉和听觉)双重冲突范例(任务1中的侧翼冲突处理,然后是后续任务2中的冲突处理)的交互作用。 )与刺激发作异步(SOA)的操纵。在单峰和跨峰双重冲突范例中,SOA不足时,任务1的冲突处理会显着干扰任务2的处理,如时间约束下任务1对任务2的累加干扰效应所示。这些结果表明,存在一个统一的超模式实体,该实体通过在单模式和跨模式场景中实施可比较的机制来支持冲突处理。