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This is Scientific Americans' 60-Second Science. I'm Cynthia Graber . This'll just take a minute.

You think we enjoy something based on its intrinsic qualities. Food should taste good because its molecules¹ tickle² our tongues. But it's much more complicated than that. For example, one study has shown that knowing the ingredients and name brand of a beer can increase the drinker's pleasure. What is going on in our brains that allows that to happen? Researchers at the California Institute of Technology recently investigated our neural³ response to this non-intrinsic stimuli⁴. 20 subjects tasted what they thought were five different wines. They were given the price for each. But in reality, there were only 3 wines. 2 were offered twice, once at an alleged⁵ low price and once at a much higher price and the subjects consistently said they enjoyed what they thought were expensive wines more. A functional⁶ MRI showed that there was no change in activity in the taste center of the brain when the subjects drink what they thought were costly⁷ wines, but the MRI also reviewed increased activity in the brain's pleasure centers. So somehow our brains combine both the actual taste and what we expected about the taste. In this case, that'll be better because it is pricier. In vivo veritas!(此处为拉丁语)

Thanks for the minute for Scientific Americans' 60-Second Science. I'm Cynthia Graber

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1 molecules
分子( molecule的名词复数 )
参考例句：
The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。 Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。

2 tickle
v.搔痒，胳肢；使高兴；发痒；n.搔痒，发痒
参考例句：
Wilson was feeling restless. There was a tickle in his throat.威尔逊只觉得心神不定。嗓子眼里有些发痒。 I am tickle pink at the news.听到这消息我高兴得要命。

3 neural
adj.神经的，神经系统的
参考例句：
The neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。 The information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。

4 stimuli
n.刺激（物）
参考例句：
It is necessary to curtail or alter normally coexisting stimuli.必需消除或改变正常时并存的刺激。 My sweat glands also respond to emotional stimuli.我的汗腺对情绪刺激也能产生反应。

5 alleged
a.被指控的，嫌疑的
参考例句：
It was alleged that he had taken bribes while in office. 他被指称在任时收受贿赂。 alleged irregularities in the election campaign 被指称竞选运动中的不正当行为

6 functional
adj.为实用而设计的，具备功能的，起作用的
参考例句：
The telephone was out of order,but is functional now.电话刚才坏了，但现在可以用了。 The furniture is not fancy,just functional.这些家具不是摆着好看的，只是为了实用。

7 costly
adj.昂贵的，价值高的，豪华的
参考例句：
It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。 This dictionary is very useful,only it is a bit costly.这本词典很有用，左不过贵了些。