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Gender-Dependent Crossmodal Interactions Between Olfactory and Tactile Stimulation Revealed Using the Unimodal Tactile Stimulation Device (UniTaSD)
Chemical Senses ( IF 3.5 ) Pub Date : 2021-01-30 , DOI: 10.1093/chemse/bjaa077
Rik Sijben 1 , Sonja M Hensel 2 , Rea Rodriguez-Raecke 1, 2 , Jessica Freiherr 3, 4
Affiliation  

Abstract
Due to the complex stimulation methods required, olfaction and touch are 2 relatively understudied senses in the field of perceptual (neuro-)science. In order to establish a consistent presentation method for the bimodal stimulation of these senses, we combined an olfactometer with the newly developed Unimodal Tactile Stimulation Device. This setup allowed us to study the influence of olfaction on tactile perception and opened up an unexplored field of research by examining the crossmodal influence of tactile stimuli on olfaction. Using a pseudorandomized design, we analyzed how positive or negative tactile and olfactory stimuli influenced the opposing modality’s perceived intensity and pleasantness. By asking participants to rate tactile stimuli, we were able to reproduce previously reported differences indicating that bimodal presentation with an olfactory stimulus increases or reduces perceived tactile pleasantness in an odor-dependent manner while highlighting that this effect appears unique to women. Furthermore, we found the first evidence for the influence of tactile stimuli on perceived odor pleasantness, an effect that is also driven primarily by women in our study. Based on these findings we believe that future neurophysiological studies, using controlled stimulus presentation can help unravel how and why olfactory and tactile perception interact in the human brain.


中文翻译:

使用单峰触觉刺激装置 (UniTaSD) 揭示嗅觉和触觉刺激之间的性别相关的跨模态相互作用

摘要
由于需要复杂的刺激方法,嗅觉和触觉是感知(神经)科学领域中研究相对较少的两种感官。为了为这些感官的双峰刺激建立一致的呈现方法,我们将嗅觉计与新开发的单峰触觉刺激装置相结合。这种设置使我们能够研究嗅觉对触觉感知的影响,并通过检查触觉刺激对嗅觉的跨模式影响开辟了一个尚未探索的研究领域。使用伪随机设计,我们分析了正面或负面的触觉和嗅觉刺激如何影响对立模式的感知强度和愉悦度。通过要求参与者对触觉刺激进行评分,我们能够重现先前报告的差异,表明具有嗅觉刺激的双峰呈现以依赖气味的方式增加或减少感知的触觉愉悦感,同时强调这种效果似乎是女性独有的。此外,我们发现了触觉刺激对感知气味愉悦度的影响的第一个证据,在我们的研究中,这种影响也主要由女性驱动。基于这些发现,我们相信未来的神经生理学研究,使用受控刺激呈现可以帮助解开嗅觉和触觉感知在人脑中相互作用的方式和原因。我们发现了触觉刺激对感知气味愉悦度影响的第一个证据,在我们的研究中,这种影响也主要由女性驱动。基于这些发现,我们相信未来的神经生理学研究,使用受控刺激呈现可以帮助解开嗅觉和触觉感知在人脑中相互作用的方式和原因。我们发现了触觉刺激对感知气味愉悦度影响的第一个证据,在我们的研究中,这种影响也主要由女性驱动。基于这些发现,我们相信未来的神经生理学研究,使用受控刺激呈现可以帮助解开嗅觉和触觉感知在人脑中相互作用的方式和原因。
更新日期:2021-03-17
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