Aversive learning-induced plasticity throughout the adult mammalian olfactory system: insights across development

Journal of Bioenergetics and Biomembranes
Jordan M Ross, Max L Fletcher

Abstract

Experiences, such as sensory learning, are known to induce plasticity in mammalian sensory systems. In recent years aversive olfactory learning-induced plasticity has been identified at all stages of the adult olfactory pathway; however, the underlying mechanisms have yet to be identified. Much of the work regarding mechanisms of olfactory associative learning comes from neonates, a time point before which the brain or olfactory system is fully developed. In addition, pups and adults often express different behavioral outcomes when subjected to the same olfactory aversive conditioning paradigm, making it difficult to directly attribute pup mechanisms of plasticity to adults. Despite the differences, there is evidence of similarities between pups and adults in terms of learning-induced changes in the olfactory system, suggesting at least some conserved mechanisms. Identifying these conserved mechanisms of plasticity would dramatically increase our understanding of how the brain is able to alter encoding and consolidation of salient olfactory information even at the earliest stages following aversive learning. The focus of this review is to systematically examine literature regarding olfactory associative learning across developm...Continue Reading

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Citations

Aug 6, 2019·Frontiers in Behavioral Neuroscience·Jordan M RossMax L Fletcher
Dec 17, 2019·Current Biology : CB·Janardhan P BhattaraiMinghong Ma
Jan 31, 2021·Cell and Tissue Research·Florence KermenLaura Chalençon
Oct 8, 2020·Cell Reports·Carl J van der LindenStephen W Santoro

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