Curbing craving: behavioral and brain evidence that children regulate craving when instructed to do so but have higher baseline craving than adults.
Curbing craving: behavioral and brain evidence that children regulate craving when instructed to do so but have higher baseline craving than adults.
复制标题
DOI：
10.1177/0956797614546001
复制
发表时间：
2014-10
影响因子：
8.2
通讯作者：
Ochsner KN
中科院分区：
文献类型：
--
作者：
Silvers JA;Insel C;Powers A;Franz P;Weber J;Mischel W;Casey BJ;Ochsner KN
虽然三分之一的儿童和青少年超重或肥胖，但对食物渴望的发育变化和调节渴望的能力仍然知之甚少。我们通过检查6-23岁个体对开胃不健康食品图像的行为和神经反应来解决这一知识差距。在“近距离”试验（评估不受管制的渴望）中，参与者专注于图片上食物的食欲特征。在“远”试验（评估努力调节）中，参与者专注于食物的视觉特征，并想象它更远。在各种情况下，年龄预示着更少的渴望，更少的纹状体招募，更大的前额叶活动和更强的额纹状体耦合。当努力调节时，所有参与者都报告了更少的渴望，表现出更大的外侧前额叶和更少的vmPFC募集。体重预示着与调节相关的前额叶活动较少，尤其是在儿童中。这些结果表明，儿童比成年人有更强烈的渴望，但也能有效地调节渴望。此外，肥胖儿童和瘦弱儿童的潜在调节机制可能有所不同。
Although one-third of children and adolescents are overweight or obese, developmental changes in food craving and the ability to regulate craving remain poorly understood. We addressed this knowledge gap by examining behavioral and neural responses to images of appetizing unhealthy foods in individuals aged 6-23 years. On “Close” trials (assessing unregulated craving), participants focused on a pictured food's appetitive features. On “Far” trials (assessing effortful regulation), participants focused on a food's visual features and imagined it was farther away. Across conditions, age predicted less craving, less striatal recruitment, greater prefrontal activity and stronger frontostriatal coupling. When effortfully regulating, all participants reported less craving and exhibited greater lateral prefrontal and less vmPFC recruitment. Body mass predicted less regulation-related prefrontal activity, particularly among children. These results suggest that children experience stronger craving than adults but can also effectively regulate craving. Moreover, the mechanisms underlying regulation may differ for heavy and lean children.
登录
查看更多内容
影响因子：
19.9
作者：
Roy, Mathieu;Shohamy, Daphna;Wager, Tor D.
通讯作者：
Wager, Tor D.
影响因子：
7.1
作者：
Mei, ZG;Grummer-Strawn, LM;Dietz, WH
通讯作者：
Dietz, WH
影响因子：
3.7
作者：
Buhle, Jason T.;Silvers, Jennifer A.;Ochsner, Kevin N.
通讯作者：
Ochsner, Kevin N.
DOI：
10.1093/cercor/bhp225
发表时间：
2010-07
期刊：
Cerebral cortex (New York, N.Y. : 1991)
影响因子：
--
作者：
Geier CF;Terwilliger R;Teslovich T;Velanova K;Luna B
通讯作者：
Luna B
3至12岁的儿童的自我调节和体重快速增加。
影响因子：
--
作者：
Francis, Lori A.;Susman, Elizabeth J.
通讯作者：
Susman, Elizabeth J.