每日背誦第一期17
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.
英格蘭近期做了一項(xiàng)關(guān)于人是否可以替自己哈癢的科學(xué)研究。自愿受測(cè)者接上腦部掃描儀，并用一塊軟泡沫棉給手掌哈癢。參與者在被哈癢和自行哈癢時(shí)，腦部掃描狀況都受到監(jiān)視。結(jié)果發(fā)現(xiàn)，在自行哈癢的過(guò)程中，小腦會(huì)向腦部的另一部位發(fā)出警告，使其預(yù)先防范，所以癢的感覺(jué)就消失了。
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