荷兰莱顿大学的心理学家在发表于心理学期刊《前沿》中写道:“这是我们首次对鱼、蛋、豆、奶等食物中所含化合物的应用,是否会对人们的行善捐赠有所促进所进行的研究。我们的实验率先证明了含色氨酸的食物可以提高慈善捐款。”
The authors carried out an experiment on 32 men and women, in which half were given a powder containing 0.8 grams of TRP, and the others were given a harmless placebo powder.
作者对32名男女进行了实验,其中一半人服用一种含有0.8克的色氨酸粉末,另一半人则食用了无害的安慰剂粉末。
Each participant was given £7.50 ($11.25) for taking part in the research and asked whether they were willing to donate part of their financial reward to charity.
每位参与者都因参加研究 获得7.5英镑的酬金,且他们被询问是否愿意把所得部分酬金捐给慈善机构。
Four boxes for Unicef, Amnesty International, Greenpeace, and World Wildlife Fund were left on a table.
桌面上摆放着来自联合国儿童基金会、大赦国际、绿色和平组织和世界野生动物基金会四个慈善机构的募款箱。
When the psychologists counted the takings, they found that those given the TRP powder donated an average of 75p ($1.15), while those who received the placebo donated half as much.
事后心理学家统计箱内募款时,发现服用了TRP的受试者平均捐款为75便士,而食用安慰剂的人则只捐出了一半的数额。
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