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:
影响因子:
--
通讯作者:
Saraiva LR
中科院分区:
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
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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