Kállai János, Kincses Péter, Lábadi Beatrix, Dorn Krisztina, Szolcsányi Tibor, Darnai Gergely, Hupuczi Ernő, Janszky József, Csathó Árpád
University of Pécs, Pécs, Hungary.
Cogn Process. 2017 Nov;18(4):349-357. doi: 10.1007/s10339-017-0827-4. Epub 2017 Aug 5.
The aim of the present study was to compare junior and senior healthy participants for their multimodal integration capability. The instrument used for the investigation was the rubber hand illusion (RHI) where synchronous and asynchronous multimodal stimulation were applied. The study focused on assessing the rate of integration for visuo-tactile and visuo-proprioceptive stimuli.
From a large sample of right-handed volunteers, 50 senior employees (containing younger and middle age adults) and 51 senior retired (senior adults) participants were recruited.
The between-subject analyses revealed that individuals both the junior and the senior participants responded to induction of RHI with vivid ownership and disownership experiences and a higher mislocalization error in the synchronous condition. However, the between-group analysis showed that participants in the senior group reported less vivid ownership and less vivid total RHI experiences scores compared to members of the junior group, but no mislocalization error differences were found between the groups.
The results indicated that when visuo-tactile stimuli synchronously presented, the gain in multisensory integration decreased in seniors group. In contrast, in the case of visuo-proprioceptive synchronous presentation, the efficiency of multisensory integration remained unchanged across the lifespan.
本研究的目的是比较年轻和年长的健康参与者的多模态整合能力。用于该调查的工具是橡胶手错觉（RHI），其中应用了同步和异步多模态刺激。该研究重点评估视觉触觉和视觉本体感觉刺激的整合率。
从大量右利手志愿者样本中，招募了50名在职年长员工（包括年轻和中年成年人）和51名退休年长（老年人）参与者。
组间分析显示，年轻和年长参与者对RHI诱导的反应均具有生动的拥有感和非拥有感体验，且在同步条件下定位错误更高。然而，组间分析表明，与年轻组成员相比，年长组参与者报告的拥有感生动程度较低，RHI总体验得分也较低，但两组之间未发现定位错误差异。
结果表明，当视觉触觉刺激同步呈现时，年长组多感官整合的增益降低。相比之下，在视觉本体感觉同步呈现的情况下，多感官整合效率在整个生命周期中保持不变。
