Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors

Taste is unique among sensory systems in its innate association with mechanisms of reward and aversion in addition to its recognition of quality, e.g., sucrose is sweet and preferable, and quinine is bitter and aversive. Taste information is sent to the reward system and feeding center via the prefr...

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Main Author: Takashi Yamamoto
Format: Article
Language:English
Published: Elsevier 2008-10-01
Series:Japanese Dental Science Review
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1882761608000549
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author Takashi Yamamoto
author_facet Takashi Yamamoto
author_sort Takashi Yamamoto
collection DOAJ
description Taste is unique among sensory systems in its innate association with mechanisms of reward and aversion in addition to its recognition of quality, e.g., sucrose is sweet and preferable, and quinine is bitter and aversive. Taste information is sent to the reward system and feeding center via the prefrontal cortices such as the mediodorsal and ventrolateral prefrontal cortices in rodents and the orbitofrontal cortex in primates. The amygdala, which receives taste inputs, also influences reward and feeding. In terms of neuroactive substances, palatability is closely related to benzodiazepine derivatives and β-endorphin, both of which facilitate consumption of food and fluid. The reward system contains the ventral tegmental area, nucleus accumbens and ventral pallidum and finally sends information to the lateral hypothalamic area, the feeding center. The dopaminergic system originating from the ventral tegmental area mediates the motivation to consume palatable food. The actual ingestive behavior is promoted by the orexigenic neuropeptides from the hypothalamus. Even palatable food can become aversive and avoided as a consequence of a postingestional unpleasant experience such as malaise. The neural mechanisms of this conditioned taste aversion will also be elucidated.
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spelling doaj.art-43cb5696e05844aa839f26c72b2271bc2022-12-21T19:48:38ZengElsevierJapanese Dental Science Review1882-76162008-10-01442919910.1016/j.jdsr.2008.07.003Central mechanisms of taste: Cognition, emotion and taste-elicited behaviorsTakashi YamamotoTaste is unique among sensory systems in its innate association with mechanisms of reward and aversion in addition to its recognition of quality, e.g., sucrose is sweet and preferable, and quinine is bitter and aversive. Taste information is sent to the reward system and feeding center via the prefrontal cortices such as the mediodorsal and ventrolateral prefrontal cortices in rodents and the orbitofrontal cortex in primates. The amygdala, which receives taste inputs, also influences reward and feeding. In terms of neuroactive substances, palatability is closely related to benzodiazepine derivatives and β-endorphin, both of which facilitate consumption of food and fluid. The reward system contains the ventral tegmental area, nucleus accumbens and ventral pallidum and finally sends information to the lateral hypothalamic area, the feeding center. The dopaminergic system originating from the ventral tegmental area mediates the motivation to consume palatable food. The actual ingestive behavior is promoted by the orexigenic neuropeptides from the hypothalamus. Even palatable food can become aversive and avoided as a consequence of a postingestional unpleasant experience such as malaise. The neural mechanisms of this conditioned taste aversion will also be elucidated.http://www.sciencedirect.com/science/article/pii/S1882761608000549ChemotopyAmygdalaReward systemβ-EndorphinDopamineOrexinConditioned taste aversion
spellingShingle Takashi Yamamoto
Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors
Japanese Dental Science Review
Chemotopy
Amygdala
Reward system
β-Endorphin
Dopamine
Orexin
Conditioned taste aversion
title Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors
title_full Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors
title_fullStr Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors
title_full_unstemmed Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors
title_short Central mechanisms of taste: Cognition, emotion and taste-elicited behaviors
title_sort central mechanisms of taste cognition emotion and taste elicited behaviors
topic Chemotopy
Amygdala
Reward system
β-Endorphin
Dopamine
Orexin
Conditioned taste aversion
url http://www.sciencedirect.com/science/article/pii/S1882761608000549
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