2021年美国内分泌年会速递:“饥饿激素”生长素释放肽会影响货币决策

2021-03-22 Sunny MedSci原创

别在饥饿的时候做决定!

来源:AFMC

一项新的研究发现,较高水平的胃食激素促生长素释放素会刺激食欲,预示着人们喜欢较小的即时金钱奖励,而不是较大的延迟经济奖励。研究结果将在内分泌学会年会ENDO 2021上发表。

波士顿马萨诸塞州总医院和哈佛医学院医学助理教授弗朗兹斯卡·普莱索(Franziska Plessow)博士说,这项研究为人类提供了新的证据,表明生长素释放肽(ghrelin)即所谓的 "饥饿激素 "会影响货币决策。 她说,最近在啮齿动物上的研究结果表明,生长素释放肽可能在冲动的选择和行为中起作用。

来源:barrons

普莱斯托说:“我们的结果表明,生长素释放肽在人的奖励相关行为和决策(例如货币选择)中的作用可能比以前公认的更为广泛。” “这有望激发未来对其在与食物无关的人类感知和行为中的作用的研究。” 

生长素释放肽向大脑发出需要进食的信号,并可能调节控制奖励加工的大脑途径。ghrelin的水平全天波动,具体取决于食物摄入量和个体新陈代谢。

这项研究包括84位年龄在10至22岁之间的女性参与者:50位患有低体重饮食失调症(例如神经性厌食症)的患者和34位健康对照参与者。Plessow的研究小组在标准餐前后对所有空腹的参与者进行了相同的测试,测试了总生长素释放肽的血液水平。饭后,参与者对假设的财务决策进行了测试,称为延迟贴现任务。他们被要求做出一系列选择,以表明他们倾向于较小的立即金钱奖励或较大的延迟金钱,例如,今天20美元或14天80美元。

研究人员报告,生长激素释放肽水平较高的健康女孩和年轻妇女更有可能选择立即但较小的金钱报酬,而不是等待大量金钱。普莱斯托说,这种偏好表明了更多的冲动选择。

在年龄相称的低体重饮食失调参与者中,没有生长激素释放肽水平与金钱选择之间的关系。已知患有这种饮食失调症的人具有生长素释放肽抵抗力,Plessow说他们的发现可能是该人群中生长素释放肽信号与行为之间脱节的另一个指标。

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    2021-04-19 ms9000000458733412

    冲动的选择和行为也和个人体内的激素有关,研究越来越深入了。

    0

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