Deconstructing the mouse olfactory percept through an ethological atlas.

Deconstructing the mouse olfactory percept through an ethological atlas.
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DOI:
10.1016/j.cub.2021.04.020
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发表时间:
2021-07-12
期刊:
Current biology : CB
影响因子:
--
通讯作者:
Saraiva LR
Saraiva LR
中科院分区:
其他
文献类型:
--
作者:
Manoel D;Makhlouf M;Arayata CJ;Sathappan A;Da'as S;Abdelrahman D;Selvaraj S;Hasnah R;Mainland JD;Gerkin RC;Saraiva LR

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对非人类的气味感知知之甚少。在这里,我们生成了迄今为止最全面的小鼠嗅觉行为学图谱,包括对73种不同气味的行为反应,其中包括12种不同浓度的气味。这些数据表明,小鼠的行为是令人难以置信的多样性和变化,以响应气味的身份和浓度。仅使用在其他小鼠中观察到的行为反应,我们可以预测两种气味中的哪一种在82%的时间内呈现给保持在外的小鼠。考虑到所有73种可能的气味,我们可以在第一次尝试20%的时间内从行为中唯一地识别目标气味,在五次尝试中有46%。虽然老鼠的行为很难从人类的感知来预测,但它们有三个基本特性:第一,气味价参数解释了嗅觉感知的最高方差。第二,气味物质的理化性质可以用来预测嗅觉感受。第三,气味浓度定量和定性地影响嗅觉感知。这些结果增加了我们对小鼠嗅觉行为的理解,以及与人类气味感知的比较,并为未来物种间嗅觉感知的比较研究提供了模板。Manoel等人在98种气味条件下对525只小鼠的18种行为进行评分,以生成小鼠嗅觉行为学图谱,他们使用该图谱来解构小鼠的嗅觉行为,从气味结构预测其,评估其主要因素,并将其与人类感知进行比较。
Odor perception in non-humans is poorly understood. Here, we generated the most comprehensive mouse olfactory ethological atlas to date, consisting of behavioral responses to a diverse panel of 73 odorants, including 12 at multiple concentrations. These data revealed that mouse behavior is incredibly diverse and changes in response to odorant identity and concentration. Using only behavioral responses observed in other mice, we could predict which of two odorants was presented to a held-out mouse 82% of the time. Considering all 73 possible odorants, we could uniquely identify the target odorant from behavior on the first try 20% of the time, and 46% within five attempts. While mouse behavior is difficult to predict from human perception, they share three fundamental properties: First, odor valence parameters explained the highest variance of olfactory perception. Second, physicochemical properties of odorants can be used to predict the olfactory percept. Third, odorant concentration quantitatively and qualitatively impacts olfactory perception. These results increase our understanding of mouse olfactory behavior, how it compares to human odor perception, and provide a template for future comparative studies of olfactory percepts among species. Manoel et al. score 18 behaviors in 525 mice across 98 odorant conditions to generate a murine olfactory ethological atlas, which they use to deconstruct mouse olfactory behavior, predict it from odorant structure, evaluate its major factors, and compare it to human perception.
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