每日小短文背诵 （16）哈痒的科学研究(2)
A scientific study was recently done in England to determine whether or not people can tickle themselves. Volunteers were attached to a brain-scanning device and were tickled on their palms with a piece of soft foam. The participants' brain scans were monitored while they were being tickled, and when they tickled themselves. It was found that during self-tickling, the cerebellum alerted another area of the brain about what to expect, so the ticklish feeling was diminished.
英格兰近期做了一项关于人是否可以替自己哈痒的科学研究。自愿受测者接上脑部扫描仪，并用一块软泡沫棉给手掌哈痒。参与者在被哈痒和自行哈痒时，脑部扫描状况都受到监视。结果发现，在自行哈痒的过程中，小脑会向脑部的另一部位发出警告，使其预先防范，所以痒的感觉就消失了。
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