Wang Aijun, Zhou Heng, Hu Yuanyuan, Wu Qiong, Zhang Tianyang, Tang Xiaoyu, Zhang Ming
Department of Psychology, Soochow University, Suzhou, China; Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou, China.
Department of Psychology, Suzhou University of Science and Technology, Suzhou, China.
Iperception. 2021 Jul 12;12(4):20416695211027186. doi: 10.1177/20416695211027186. eCollection 2021 Jul-Aug.
The Colavita effect refers to the phenomenon wherein people tend to not respond to an auditory stimulus when a visual stimulus is simultaneously presented. Although previous studies have shown that endogenous modality attention influences the Colavita effect, whether the Colavita effect is influenced by endogenous spatial attention remains unknown. In the present study, we established endogenous spatial cues to investigate whether the size of the Colavita effect changes under visual or auditory cues. We measured three indexes to investigate the effect of endogenous spatial attention on the size of the Colavita effect. These three indexes were developed based on the following observations in bimodal trials: (a) The proportion of the "only vision" response was significantly higher than that of the "only audition" response; (b) the proportion of the "vision precedes audition" response was significantly higher than that of the "audition precedes vision" response; and (c) the reaction time difference of the "vision precedes audition" response was significantly higher than that of the "audition precedes vision" response. Our results showed that the Colavita effect was always influenced by endogenous spatial attention and that its size was larger at the cued location than at the uncued location; the cue modality (visual vs. auditory) had no effect on the size of the Colavita effect. Taken together, the present results shed light on how endogenous spatial attention affects the Colavita effect.
科拉维塔效应指的是当同时呈现视觉刺激时，人们往往不会对听觉刺激做出反应的现象。尽管先前的研究表明内源性模态注意力会影响科拉维塔效应，但科拉维塔效应是否受内源性空间注意力的影响仍不清楚。在本研究中，我们建立了内源性空间线索，以探究在视觉或听觉线索下科拉维塔效应的大小是否会发生变化。我们测量了三个指标来研究内源性空间注意力对科拉维塔效应大小的影响。这三个指标是基于在双峰试验中的以下观察结果制定的：(a)“仅视觉”反应的比例显著高于“仅听觉”反应的比例；(b)“视觉先于听觉”反应的比例显著高于“听觉先于视觉”反应的比例；(c)“视觉先于听觉”反应的反应时间差显著高于“听觉先于视觉”反应的反应时间差。我们的结果表明，科拉维塔效应总是受内源性空间注意力的影响，并且其大小在提示位置比在未提示位置更大；提示模态（视觉与听觉）对科拉维塔效应的大小没有影响。综上所述，本研究结果揭示了内源性空间注意力如何影响科拉维塔效应。
