Researchers at the University of California-Berkeley studied 44 college-aged participants at two different times of day -- once at noon and again at 6 p.m.

加利福尼亚大学伯克利分校的研究者对44名20岁上下的参与者进行研究，一天两次——中午一次，下午6点再一次。

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Researchers at the University of California-Berkeley studied 44 college-aged participants at two different times of day -- once at noon and again at 6 p.m.

加利福尼亚大学伯克利分校的研究者对44名20岁上下的参与者进行研究，一天两次——中午一次，下午6点再一次。

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Participants were youth aged 16 to 20 living in the Chicago area.

调查的参与者为居住在芝加哥地区，年龄在16岁至20岁之间的青少年。

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Researchers also looked at brain size as these participants aged.

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Survey participants aged 24-35 were most likely to talk about brands.

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All of the participants were aged 18-80, with the majority in their 40s and 50s.

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The 40 participants were aged between 20 and 70 and included Mr Sharp's carers and staff from the General Hospital.

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