多巴胺是一种奖励诱导的自适分子，让动物在感觉饥饿前觅食。
Dopamine is an adaptive reward-inducing molecule that makes animals want to look for food before they're hungry.
目的研究麻醉诱导前扩容对腹腔镜手术后恶心呕吐（PONV）发生率的影响。
Objective To investigate the effects of volume expansion before induction of anaesthesia on postoperative nausea and vomiting(PONV) in patients undergoing laparoscopic operations.
受试者以达到其65%最大耗氧量进行腿骑自行车运动，在运动前、后30分钟两次观看愤怒诱导场景。
The subjects viewed anger-inducing scenes before and after 30 minutes of leg-cycling exercise at 65 percent of their maximal oxygen uptake.
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