The Effects of Cue Reliability on Crossmodal Recalibration in Adults and Children.

IF 1.8 4区心理学 Q3 BIOPHYSICS Multisensory Research Pub Date : 2021-05-31 DOI:10.1163/22134808-bja10053

Sophie Rohlf, Patrick Bruns, Brigitte Röder

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Abstract

Reliability-based cue combination is a hallmark of multisensory integration, while the role of cue reliability for crossmodal recalibration is less understood. The present study investigated whether visual cue reliability affects audiovisual recalibration in adults and children. Participants had to localize sounds, which were presented either alone or in combination with a spatially discrepant high- or low-reliability visual stimulus. In a previous study we had shown that the ventriloquist effect (indicating multisensory integration) was overall larger in the children groups and that the shift in sound localization toward the spatially discrepant visual stimulus decreased with visual cue reliability in all groups. The present study replicated the onset of the immediate ventriloquist aftereffect (a shift in unimodal sound localization following a single exposure of a spatially discrepant audiovisual stimulus) at the age of 6-7 years. In adults the immediate ventriloquist aftereffect depended on visual cue reliability, whereas the cumulative ventriloquist aftereffect (reflecting the audiovisual spatial discrepancies over the complete experiment) did not. In 6-7-year-olds the immediate ventriloquist aftereffect was independent of visual cue reliability. The present results are compatible with the idea of immediate and cumulative crossmodal recalibrations being dissociable processes and that the immediate ventriloquist aftereffect is more closely related to genuine multisensory integration.

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线索可靠性对成人和儿童跨模态再校准的影响

以可靠性为基础的线索组合是多感官整合的一个标志，而线索可靠性对跨模态重新校准的作用却鲜为人知。本研究调查了视觉线索可靠性是否会影响成人和儿童的视听再校准。受试者必须对声音进行定位，这些声音要么单独出现，要么与空间差异大或可靠性低的视觉刺激物同时出现。在之前的一项研究中，我们发现儿童组的腹语者效应（表示多感官整合）总体上更大，而且声音定位向空间差异视觉刺激的转移在所有组别中都随着视觉线索可靠性的降低而降低。本研究复制了 6-7 岁时出现的腹语者即刻后遗效应（单次接触空间差异视听刺激后，单模态声音定位的转移）。在成人中，即时腹语者后效取决于视觉线索的可靠性，而累积腹语者后效（反映整个实验中的视听空间差异）则不取决于视觉线索的可靠性。在 6-7 岁的儿童中，即时腹语者后效与视觉线索的可靠性无关。本实验结果与以下观点相吻合：即刻的和累积的跨模态再校准是两个不同的过程，即刻的口技后效与真正的多感官整合关系更为密切。

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来源期刊

Multisensory Research BIOPHYSICS-PSYCHOLOGY

CiteScore

3.50

自引率

12.50%

发文量

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.