Olfactory Orientation and Navigation in Humans.

Olfactory Orientation and Navigation in Humans.
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DOI:
10.1371/journal.pone.0129387
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Sulloway FJ
Sulloway FJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Jacobs LF;Arter J;Cook A;Sulloway FJ

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尽管理论上可以预测,但没有直接证据表明动物可以将空间中的任意位置定义为气味网格上的坐标位置。我们在这里展示了人类可以做到这一点。使用空间匹配样本程序,人类被引导到一个房间内的随机位置,房间里弥漫着两种气味。在短暂的抽样和空间迷失之后,他们不得不回到这个位置。在三个条件下,参与者可以接触到不同的感觉刺激:只有嗅觉,只有视觉,以及没有嗅觉、视觉或听觉刺激的最终控制条件。人类在仅嗅觉条件下比控制条件下定位目标的准确率更高,也表现出比随机条件下更高的准确率。因此,长期以来为信鸽提出的一种机制,即在由化学刺激构建的地图上定义位置的能力,也可能是人类使用的一种导航机制。
Although predicted by theory, there is no direct evidence that an animal can define an arbitrary location in space as a coordinate location on an odor grid. Here we show that humans can do so. Using a spatial match-to-sample procedure, humans were led to a random location within a room diffused with two odors. After brief sampling and spatial disorientation, they had to return to this location. Over three conditions, participants had access to different sensory stimuli: olfactory only, visual only, and a final control condition with no olfactory, visual, or auditory stimuli. Humans located the target with higher accuracy in the olfaction-only condition than in the control condition and showed higher accuracy than chance. Thus a mechanism long proposed for the homing pigeon, the ability to define a location on a map constructed from chemical stimuli, may also be a navigational mechanism used by humans.
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