Coan, an assistant professor in the U．Va. Neuroscience Graduate Program and the Department of Psychology, and his team conducted a study involving several couples who rated themselves as highly satisfied with their marriages.

　　The researchers designed a functional MRI (magnetic resonance imaging磁共振成像)study in which 16 married women were subjected to the threat of a very mild electric shock while they by turns held their husband's hand, the hand of a stranger (male) or no hand at all.

　　They found that the MRI was able to show how these women's brains responded to this handholding while in a threatening situation. The researchers noted a large decrease in the brain response to threat as a function of partner handholding, and a limited decrease in this response as a function of stranger handholding.

　　Moreover, partner handholding effects varied as a function of marital quality, with women in the very highest quality marriages benefiting from a very powerful decrease in threat­related brain activity.“This is the first study of the neurological reactions to human touch in a threatening situation，” said Dr.Coan.

　　【语篇解读】 这是一篇科普类阅读材料。一项最新研究发现，牢固美满的婚姻有助于缓解女性的压力。

　　72．The study shows that ________ can be the best way to lessen stress for women.

　　A．high—quality marriages

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