Klabes Julian, Babilon Sebastian, Zandi Babak, Khanh Tran Quoc
Laboratory of Lighting Technology, Technical University of Darmstadt, Hochschulstr. 4a, 64289 Darmstadt, Germany.
Light and Health Research Center, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA.
Vision (Basel). 2021 May 4;5(2):21. doi: 10.3390/vision5020021.
The Sternberg task is a widely used tool for assessing the working memory performance in vision and cognitive science. It is possible to apply a visual or auditory variant of the Sternberg task to query the memory load. However, previous studies have shown that the subjects' corresponding reaction times differ dependent on the used variant. In this work, we present an experimental approach that is intended to correct the reaction time differences observed between auditory and visual item presentation. We found that the subjects' reaction time offset is related to the encoding speed of a single probe item. After correcting for these individual encoding latencies, differences in the results of both the auditory and visual Sternberg task become non-significant, p=0.252. Thus, an equal task difficulty can be concluded for both variants of item presentation.
斯滕伯格任务是视觉和认知科学中广泛用于评估工作记忆表现的工具。应用斯滕伯格任务的视觉或听觉变体来查询记忆负荷是可行的。然而，先前的研究表明，受试者的相应反应时间因所使用的变体而异。在这项工作中，我们提出了一种实验方法，旨在校正听觉和视觉项目呈现之间观察到的反应时间差异。我们发现，受试者的反应时间偏移与单个探测项目的编码速度有关。在校正这些个体编码延迟后，听觉和视觉斯滕伯格任务结果的差异变得不显著，p = 0.252。因此，可以得出结论，两种项目呈现变体的任务难度相等。
