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Bilateral and unilateral odor processing and odor perception.
Communications Biology ( IF 5.2 ) Pub Date : 2020-04-01 , DOI: 10.1038/s42003-020-0876-6
Tal Dalal 1 , Nitin Gupta 2 , Rafi Haddad 1
Affiliation  

Imagine smelling a novel perfume with only one nostril and then smelling it again with the other nostril. Clearly, you can tell that it is the same perfume both times. This simple experiment demonstrates that odor information is shared across both hemispheres to enable perceptual unity. In many sensory systems, perceptual unity is believed to be mediated by inter-hemispheric connections between iso-functional cortical regions. However, in the olfactory system, the underlying neural mechanisms that enable this coordination are unclear because the two olfactory cortices are not topographically organized and do not seem to have homotypic inter-hemispheric mapping. This review presents recent advances in determining which aspects of odor information are processed unilaterally or bilaterally, and how odor information is shared across the two hemispheres. We argue that understanding the mechanisms of inter-hemispheric coordination can provide valuable insights that are hard to achieve when focusing on one hemisphere alone.

中文翻译:


双边和单边气味处理和气味感知。



想象一下,只用一个鼻孔闻一种新颖的香水,然后用另一个鼻孔再次闻它。显然,你可以看出两次都是同一种香水。这个简单的实验表明,气味信息在两个半球之间共享,以实现感知统一。在许多感觉系统中,知觉统一被认为是由同功能皮质区域之间的半球间连接介导的。然而,在嗅觉系统中,实现这种协调的潜在神经机制尚不清楚,因为两个嗅觉皮层没有按地形组织,并且似乎不具有同型半球间映射。这篇综述介绍了确定单边或双边处理气味信息的哪些方面以及气味信息如何在两个半球之间共享的最新进展。我们认为,了解半球间协调机制可以提供有价值的见解,而仅关注一个半球时很难获得这些见解。
更新日期:2020-04-24
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