Abstract：
The auditory Stroop is a modification of the classic Stroop paradigm commonly used in dual-task research when the motor task requires the visual system. Despite its use, there are gaps in our understanding of this tool. For example, in visual/auditory Stroop paradigms, neutral cues irrelevant to the required response, which theoretically cause less interference/facilitation, are used to elucidate effects of visual/auditory demands on neural processes. Specifically, in auditory Stroop paradigms the use and choice of neutral cue words is inconsistent. To address these gaps, we instrumented participants with kinematic markers and a digital microphone and asked them to respond to auditory Stroop cues and neutral cue words consisting of either one or two syllables, while simultaneously performing an unobstructed locomotor task. Two blocks of trials were collected. In one block, participants had prior knowledge that either an auditory Stroop or a neutral word stimulus would be presented (Known); a second block presented both types of cognitive cues in a random order to participants (Mixed). We observed main effects of cognitive task (neutral, incongruent, congruent) and instructional set (Known, Mixed) on response times, but not on center of mass velocity. Also, more time was required to verbally respond to an incongruent compared to congruent or neutral task across all conditions, and neutral task words with one syllable resulted in longer response times compared to two syllable neutral words. We recommend that researchers include neutral cues when using the auditory Stroop test and to carefully consider their neutral word choice.
摘要：
当运动任务需要视觉系统时，听觉Stroop是双任务研究中常用的经典Stroop范式的修改。尽管它使用,我们对这个工具的理解存在差距。例如,在视觉/听觉Stroop范式中，与所需响应无关的中性线索，理论上造成较少的干扰/促进，用于阐明视觉/听觉需求对神经过程的影响。具体来说,在听觉Stroop范式中，中性提示词的使用和选择是不一致的。为了弥补这些差距,我们使用运动学标记和数字麦克风对参与者进行了测试，并要求他们对听觉Stroop提示和由一个或两个音节组成的中性提示词做出反应，同时执行畅通的运动任务。收集两个试验块。在一个街区,参与者事先知道会呈现听觉Stroop或中性词刺激(已知);第二个模块以随机顺序向参与者呈现两种类型的认知线索(混合).我们观察到认知任务的主要影响(中性，不一致，一致性)和教学集(已知，混合)响应时间，但不在质心速度上。此外，与所有条件下的一致或中立任务相比，需要更多的时间来口头回应不一致的任务，与两个音节的中性单词相比，一个音节的中性任务单词的响应时间更长。我们建议研究人员在使用听觉Stroop测试时包括中性提示，并仔细考虑他们的中性词选择。
