Multiple Spatial Coordinates Influence the Prediction of Tactile Events Facilitated by Approaching Visual Stimuli.

IF 1.8 4区 心理学 Q3 BIOPHYSICS
Tsukasa Kimura
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引用次数: 0

Abstract

Interaction with other sensory information is important for prediction of tactile events. Recent studies have reported that the approach of visual information toward the body facilitates prediction of subsequent tactile events. However, the processing of tactile events is influenced by multiple spatial coordinates, and it remains unclear how this approach effect influences tactile events in different spatial coordinates, i.e., spatial reference frames. We investigated the relationship between the prediction of a tactile stimulus via this approach effect and spatial coordinates by comparing ERPs. Participants were asked to place their arms on a desk and required to respond tactile stimuli which were presented to the left (or right) index finger with a high probability (80%) or to the opposite index finger with a low probability (20%). Before the presentation of each tactile stimulus, visual stimuli approached sequentially toward the hand to which the high-probability tactile stimulus was presented. In the uncrossed condition, each hand was placed on the corresponding side. In the crossed condition, each hand was crossed and placed on the opposite side, i.e., left (right) hand placed on the right (left) side. Thus, the spatial location of the tactile stimulus and hand was consistent in the uncrossed condition and inconsistent in the crossed condition. The results showed that N1 amplitudes elicited by high-probability tactile stimuli only decreased in the uncrossed condition. These results suggest that the prediction of a tactile stimulus facilitated by approaching visual information is influenced by multiple spatial coordinates.

多重空间坐标影响触觉事件的预测,而视觉刺激的接近会促进触觉事件的发生
与其他感官信息的交互对于预测触觉事件非常重要。最近的研究报告指出,视觉信息向身体靠近有助于预测随后的触觉事件。然而,触觉事件的处理受到多个空间坐标的影响,这种接近效应如何影响不同空间坐标(即空间参照系)中的触觉事件仍不清楚。我们通过比较ERPs,研究了通过这种接近效应预测触觉刺激与空间坐标之间的关系。受试者被要求将手臂放在桌子上,并对触觉刺激做出反应,这些触觉刺激是以高概率(80%)呈现在左手(或右手)食指上,或以低概率(20%)呈现在对侧食指上。在每次触觉刺激出现之前,视觉刺激会依次向出现高概率触觉刺激的那只手靠近。在无交叉条件下,每只手都放在相应的一侧。在交叉条件下,每只手都被交叉放在相反的一侧,即左(右)手放在右(左)侧。因此,在非交叉条件下,触觉刺激和手的空间位置是一致的,而在交叉条件下则不一致。结果显示,只有在无交叉条件下,高概率触觉刺激引起的 N1 振幅才会下降。这些结果表明,在接近视觉信息的情况下,对触觉刺激的预测会受到多个空间坐标的影响。
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来源期刊
Multisensory Research
Multisensory Research BIOPHYSICS-PSYCHOLOGY
CiteScore
3.50
自引率
12.50%
发文量
15
期刊介绍: Multisensory Research is an interdisciplinary archival journal covering all aspects of multisensory processing including the control of action, cognition and attention. Research using any approach to increase our understanding of multisensory perceptual, behavioural, neural and computational mechanisms is encouraged. Empirical, neurophysiological, psychophysical, brain imaging, clinical, developmental, mathematical and computational analyses are welcome. Research will also be considered covering multisensory applications such as sensory substitution, crossmodal methods for delivering sensory information or multisensory approaches to robotics and engineering. Short communications and technical notes that draw attention to new developments will be included, as will reviews and commentaries on current issues. Special issues dealing with specific topics will be announced from time to time. Multisensory Research is a continuation of Seeing and Perceiving, and of Spatial Vision.
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