odor hedonics
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2021 ◽  
Vol 383 (1) ◽  
pp. 485-493 ◽  
Author(s):  
Florence Kermen ◽  
Nathalie Mandairon ◽  
Laura Chalençon

AbstractWhether an odorant is perceived as pleasant or unpleasant (hedonic value) governs a range of crucial behaviors: foraging, escaping danger, and social interaction. Despite its importance in olfactory perception, little is known regarding how odor hedonics is represented and encoded in the brain. Here, we review recent findings describing how odorant hedonic value is represented in the first olfaction processing center, the olfactory bulb. We discuss how olfactory bulb circuits might contribute to the coding of innate and learned odorant hedonics in addition to the odorant’s physicochemical properties.


2020 ◽  
Vol 134 (5) ◽  
pp. 407-416
Author(s):  
Elizabeth R. Roberts ◽  
Amanda M. Dossat ◽  
María del Mar Cortijo ◽  
Patrik Brundin ◽  
Daniel W. Wesson

2020 ◽  
Author(s):  
Elizabeth R. Roberts ◽  
Amanda M. Dossat ◽  
María del Mar Cortijo ◽  
Patrik Brundin ◽  
Daniel W. Wesson

AbstractOlfactory impairments, including deficits in odor detection, discrimination, recognition, and changes in odor hedonics are reported in the early stages of Alzheimer’s disease (AD). Rodent models of AD display deficits in odor learning, detection, and discrimination – recapitulating the clinical condition. However, the impact of familial AD genetic mutations on odor hedonics is unknown. We tested 2-, 4-, and 6-months old 5XFAD (Tg6799) mice in the five-port odor multiple-choice task designed to assay a variety of odor-guided behaviors, including odor preferences/hedonics. We found that 5XFAD mice investigated odors longer than controls, an effect that was driven by 6-months old mice. Interestingly, this effect was carried by females in the 5XFAD group, who investigated odors longer than age-matched males. Upon examining behavior directed towards individual odors to test for aberrant odor preferences, we uncovered that 5XFAD females at several ages displayed heightened preferences towards some of the odors, indicating aberrant hedonics. We observed no impairments in the ability to engage in the task in 5XFAD mice. Taken together, 5XFAD mice, particularly 5XFAD females, displayed prolonged odor investigation behavior and enhanced preferences to certain odors. The data provide insight into hedonic alterations which may occur in AD mouse models, and how these are influenced by biological sex.


2019 ◽  
Vol 24 (3) ◽  
pp. 184-193
Author(s):  
Julianne Cary ◽  
Joseph LaFrance ◽  
Sara Costello ◽  
Emily R. Bovier

2016 ◽  
Vol 36 (25) ◽  
pp. 6634-6650 ◽  
Author(s):  
Rosemarie E. Perry ◽  
Syrina Al Aïn ◽  
Charlis Raineki ◽  
Regina M. Sullivan ◽  
Donald A. Wilson
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2016 ◽  
Vol 19 (7) ◽  
pp. 876-878 ◽  
Author(s):  
Florence Kermen ◽  
Maëllie Midroit ◽  
Nicola Kuczewski ◽  
Jérémy Forest ◽  
Marc Thévenet ◽  
...  
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2011 ◽  
Vol 4 (5) ◽  
pp. 563-565 ◽  
Author(s):  
Pauline Joussain ◽  
Amadine Chakirian ◽  
Florence Kermen ◽  
Catherine Rouby ◽  
Moustafa Bensafi
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