Food reinforcement
Food reinforcement
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DOI：
10.1016/j.appet.2005.04.006
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发表时间：
2006-01-01
期刊：
影响因子：
5.4
通讯作者：
Leddy, JJ
中科院分区：
文献类型：
--
作者：
Epstein, LH;Leddy, JJ
食物的强化价值是通过人们为获得食物所付出的努力来衡量的，它受到食物的适口性、食物剥夺和食物种类的影响，可能是比享乐主义或喜好更强大的食物摄入决定因素。食物的强化价值部分是由多巴胺能活动介导的。影响多巴胺转运和多巴胺D2受体密度的基因型与食物强化相互作用，影响饮食行为，D2受体基因型可能影响戒烟后的食物强化和体重增加。多巴胺运输的抑制增加了脑多巴胺浓度，这可能影响戒烟后体重的增加，并可以减少肥胖成年人的能量摄入。(c) 2005 Elsevier Ltd版权所有。
The reinforcing value of food, measured by how hard someone is willing to work to obtain food, is influenced by food palatability, food deprivation and food variety, and may be a more powerful determinant of food intake than hedonics or liking. The reinforcing value of food is mediated in part by dopaminergic activity. Genotypes that influence dopamine transport and the density of dopamine D2 receptors interact with food reinforcement to influence eating behavior, and D2 receptor genotypes may influence food reinforcement and weight gain after smoking cessation. Inhibition of dopamine transport increases brain dopamine concentrations, which may influence weight gain after smoking cessation and can reduce energy intake in obese adults. (c) 2005 Elsevier Ltd. All rights reserved.