60秒科学:Caffeine Merely Masks Alcohol's Effect

Caffeine Merely Masks Alcohol's Effect
An animal study in the journal Behavioral Neuroscience finds that coffee after alcohol consumption might merely make the drinker feel more capable, which could lead to bad decision making. Steve Mirsky reports

Cup of coffee after a night on the town to sober up? Well, a mouse study finds that caffeine does not counter the intoxicating¹ effects of alcohol. It merely masks the inebriation², which could lead to poor decisions. Because drinkers might think they’ve sobered up, whereas they could just be more wired. The study is in the journal Behavioral Neuroscience.

Researchers gave mice doses, separately and together, of caffeine and alcohol. Tests then gauged³ how well the mice learned how to avoid part of a maze⁴ that appeared dangerous because of bright lights or loud sounds. And mouse anxiety was tested, through their willingness to be in an open area.

No surprise, drunk animals were more relaxed and had less anxiety, and had trouble learning to avoid possible danger. Then the mice got alcohol and caffeine together. And the caffeine did not improve a drunk animal’s ability to learn. So the mouse is more relaxed but less able to avoid threats—if it had a tiny car available it probably would have thought it was “fine, I’m fine enough to drive it.”
 

1 intoxicating   

a. 醉人的,使人兴奋的

参考例句：

• Power can be intoxicating. 权力能让人得意忘形。
• On summer evenings the flowers gave forth an almost intoxicating scent. 夏日的傍晚，鲜花散发出醉人的芳香。

2 inebriation   

n.醉，陶醉

参考例句：

• His practice of inebriation was lamentable. 他的酗酒常闹得别人束手无策。 来自辞典例句
• Poor Tom lamentably disgraced himself at Sir Charles Mirable's table, by premature inebriation. 可怜的汤姆在查尔斯·米拉贝尔爵士的宴会上，终于入席不久就酩酊大醉，弄得出丑露乖，丢尽了脸皮。 来自辞典例句

3 gauged   

adj.校准的；标准的；量规的；量计的v.（用仪器）测量( gauge的过去式和过去分词 )；估计；计量；划分

参考例句：

• He picked up the calipers and gauged carefully. 他拿起卡钳仔细测量。 来自《现代汉英综合大词典》
• Distance is gauged by journey time rather than miles. 距离以行程时间而非英里数来计算。 来自辞典例句

4 maze   

n.迷宫，八阵图，混乱，迷惑

参考例句：

• He found his way through the complex maze of corridors.他穿过了迷宮一样的走廊。
• She was lost in the maze for several hours.一连几小时，她的头脑处于一片糊涂状态。