Tang Xiaoyu, Gao Yulin, Yang Weiping, Ren Yanna, Wu Jinglong, Zhang Ming, Wu Qiong
School of Psychology, Liaoning Collaborative Innovation Center of Children and Adolescents Healthy Personality Assessment and Cultivation, Liaoning Normal University, Dalian, 116029, China.
Cognitive Neuroscience Laboratory, Okayama University, Okayama, 7008530, Japan.
Exp Brain Res. 2019 Apr;237(4):1093-1107. doi: 10.1007/s00221-019-05488-0. Epub 2019 Feb 15.
Inhibition of return (IOR) refers to the slower response to a target appearing at a previously attended location in a cue-target paradigm. It has been greatly explored in the visual or auditory modality. This study investigates differences between the IOR of audiovisual targets and the IOR of visual targets under conditions of modality-specific selective attention (Experiment 1) and divided-modalities attention (Experiment 2). We employed an exogenous spatial cueing paradigm and manipulated the modalities of targets, including visual, auditory, or audiovisual modalities. The participants were asked to detect targets in visual modality or both visual and auditory modalities, which were presented on the same (cued) or opposite (uncued) side as the preceding visual peripheral cues. In Experiment 1, we found the comparable IOR with visual and audiovisual targets when participants were asked to selectively focus on visual modality. In Experiment 2, however, there was a smaller magnitude of IOR with audiovisual targets as compared with visual targets when paying attention to both visual and auditory modalities. We also observed a reduced multisensory response enhancement effect and race model inequality violation at cued locations relative to uncued locations. These results provide the first evidence of the IOR with audiovisual targets. Furthermore, IOR with audiovisual targets decreases when paying attention to both modalities. The interaction between exogenous spatial attention and audiovisual integration is discussed.
返回抑制（IOR）是指在线索-目标范式中，对出现在先前注意位置的目标的反应变慢。它在视觉或听觉模态中得到了广泛研究。本研究调查了在模态特异性选择性注意条件下（实验1）和分开模态注意条件下（实验2）视听目标的IOR与视觉目标的IOR之间的差异。我们采用了一种外源性空间线索范式，并操纵目标的模态，包括视觉、听觉或视听模态。参与者被要求检测视觉模态或视觉和听觉模态中的目标，这些目标出现在与先前视觉外周线索相同（被提示）或相反（未被提示）的一侧。在实验1中，当要求参与者选择性地关注视觉模态时，我们发现视觉目标和视听目标的IOR相当。然而，在实验2中，当同时关注视觉和听觉模态时，与视觉目标相比，视听目标的IOR幅度较小。我们还观察到在被提示位置相对于未被提示位置，多感官反应增强效应降低以及种族模型不平等违反。这些结果提供了视听目标存在IOR的首个证据。此外，当同时关注两种模态时，视听目标的IOR会降低。讨论了外源性空间注意与视听整合之间的相互作用。
