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.

心理学家计算捐款数额后发现，摄入色氨酸粉末的被试平均捐出了75便士，而食用安慰剂的被试则只捐出了一半的数额

Just how a food supplement could have such an effect is not clear, but the scientists suggest the involvement of oxytocin, the so-called ‘cuddle’ hormone produced by women during breastfeeding and lovemaking.

为什么一种食品添加剂可以产生这样效果目前还不清楚，但科学家们认为这可能与后叶催产素有关，后叶催产素是女性在哺乳和性交期间会产生的一种所谓的“拥抱荷尔蒙。

They wrote: ‘It may be likely that the willingness to donate money to a charity is modulated by the effect that serotonin exerts on oxytocin levels.

他们写道：“捐款的意愿可能受5-羟色胺对后叶催产素水平影响的调控。

‘Our results support the materialist approach that “you are what you eat.

“我们的研究结果支持了唯物主义者的说法即‘吃什么东西就会产生什么行为’。

‘The idea [is] that the food one eats has a bearing on one’s state of mind. The food we eat may thus act as a cognitive enhancer that modulates the way we deal with the “social world.'

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