Smelling directions: olfaction modulates ambiguous visual motion perception.

Smelling directions: olfaction modulates ambiguous visual motion perception.
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嗅觉方向:嗅觉调节模糊的视觉运动知觉

DOI:
10.1038/srep05796
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发表时间:
2014-07-23
期刊:
影响因子:
4.6
通讯作者:
Zhang T
Zhang T
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kuang S;Zhang T

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嗅觉通常伴随着同时的视觉感觉。先前的研究已经证明,当一致的颜色或形状相关的视觉线索同时存在时,嗅觉表现会增强,当一致的气味同时存在时,视觉物体感知会促进。这些视觉-嗅觉相互作用表明嗅觉通路和视觉腹侧处理流之间存在耦合。然而,它是不知道的,如果嗅觉可以调节视觉运动知觉,一个功能,是有关的视觉背流。我们通过研究嗅觉线索对模糊视觉运动信号感知的影响来测试这种可能性。我们发现,在引入运动方向和嗅觉线索之间的关联后,嗅觉确实会偏向模糊的视觉运动感知。我们的研究结果,嗅觉调节视觉运动处理增加了目前的知识,跨模态的相互作用,并意味着嗅觉系统和视觉背侧通路之间可能的功能联系。
Senses of smells are often accompanied by simultaneous visual sensations. Previous studies have documented enhanced olfactory performance with concurrent presence of congruent color- or shape- related visual cues and facilitated visual object perception when congruent smells are simultaneously present. These visual object-olfaction interactions suggest the existences of couplings between the olfactory pathway and the visual ventral processing stream. However, it is not known if olfaction can modulate visual motion perception, a function that is related to the visual dorsal stream. We tested this possibility by examining the influence of olfactory cues on the perceptions of ambiguous visual motion signals. We showed that, after introducing an association between motion directions and olfactory cues, olfaction could indeed bias ambiguous visual motion perceptions. Our result that olfaction modulates visual motion processing adds to the current knowledge of cross-modal interactions and implies a possible functional linkage between the olfactory system and the visual dorsal pathway.
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