School of Psychology and Institute of Neuroscience, Trinity College Dublin, Ireland.
School of Psychology and Institute of Neuroscience, Trinity College Dublin, Ireland; The BioRobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy.
Conscious Cogn. 2020 Apr;80:102900. doi: 10.1016/j.concog.2020.102900. Epub 2020 Feb 28.
The crossmodal congruency effect (CCE) is augmented when viewing an image of a hand compared to an object. It is unclear if this contextual effect extends to a non-spatial CCE. Here, participants discriminated the number of tactile vibrations delivered to the hand whilst ignoring visual distractors on images of their own or another's hand or an object. The CCE was not modulated by stimulus context. Viewing one's hand from a third person perspective increased errors relative to viewing an object (Experiment 1). Errors were reduced when viewing hands, from first or third person perspectives, with additional identity markers (Experiments 2 and 3). Our results suggest no effect of context on the non-spatial CCE and that differences in task performance between hand and object images depend on their visual properties. These findings are discussed in light of the relationship between body representation and perception of body-centred stimuli in the temporal domain.
跨模态一致性效应（CCE）在观看手的图像时比观看物体时增强。目前尚不清楚这种上下文效应对非空间 CCE 是否适用。在这里，参与者在忽略手或物体的图像上的视觉干扰物的同时，对手上触觉振动的数量进行了辨别。刺激环境并没有调节 CCE。与观看物体相比，从第三人称视角观看自己的手会增加错误（实验 1）。当以第一人称或第三人称视角观看手，并增加身份标记时，错误会减少（实验 2 和 3）。我们的结果表明，非空间 CCE 不受上下文的影响，并且在手和物体图像之间的任务表现差异取决于它们的视觉属性。这些发现是根据时间域中身体表示和身体中心刺激感知之间的关系来讨论的。
