Some have even blamed the psychological effect of shortening days.

有人甚至将其归咎于白昼缩短带来的心理影响。

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While this research was one of the first into the psychological effect of eating disorders in NA populations it can now lead to further, longer studies.

这项研究是第一次对土著人口饮食性疾病心理影响进行的研究，这是一个好的开端，能够带来更进一步比较长期的研究。

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“The most troublesome thing is harmful rumours and the psychological effect [on consumers] as a result of radiation concerns, ” says Kaoru Yosano, the economy minister.

日本财政大臣谢野馨说：“最麻烦的事情是有害的谣言和消费者对辐射的关注所造成的心理作用。”

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So if a genuine reflation requires the yen's depreciation, the psychological effect on regional currencies should be relatively muted.

CNN: Emerging Asia can cope with the coming slide

Republicans argue that even though the bulk of Bush's tax cut won't be felt for years, the entire package would have an immediate, positive psychological effect on the markets and consumers -- if Congress passes it.

CNN: Democrats say Bush's comments helped bring downturn

And that's without even considering the possible placebo effect, the idea that the psychological boost of believing in the bands can improve performance.

BBC: What are Power Balance bands?