古歐洲人都是“右撇子”(雙語有聲)
作者：fishy0109
來源：滬江論壇
2011-06-16 07:30
詼諧的語言，生動(dòng)的內(nèi)容一分鐘快速掌握科技最新動(dòng)態(tài)?
Ancient Europeans Were Mostly Righties
古歐洲人都是“右撇子”
When it comes to handedness, righties rule.And according to a new study, they have for a long time.Because even half a million years ago, nine out of 10 European humans favored their right hands.The finding appears in the journal Laterality.
在習(xí)慣使用左手還是右手的問題上，右手占多數(shù)。最新研究證明，人們從很久以前就有用右手多過左手的習(xí)慣了。因?yàn)樯踔猎谖迨f年前，十個(gè)歐洲人中就有九個(gè)更喜歡用右手。此發(fā)現(xiàn)發(fā)表在《側(cè)性》期刊上。
Scientists have long wondered where our handedness comes from.All other tool-using primates show no distinct hand preference when it comes to holding the stick or stone.
科學(xué)家們很久以來一直不明白我們用手習(xí)慣的由來。當(dāng)手持棍棒或石頭時(shí)，所有其他使用工具的靈長類動(dòng)物并沒有明顯表現(xiàn)出對用手的偏好。
But have humans always been so heavily right-handed? Some scientists had previously detected a right-hand bias when they looked at the flaking patterns on ancient stone tools.
不過，是否人類一直都如此偏愛右手呢？一些科學(xué)家曾從古代石器工具的切削痕跡中發(fā)現(xiàn)人類對右手的偏愛。
In this study, researchers turned to the teeth for answers.They analyzed the scratches accidentally left by stone tools on teeth from human fossils collected from a half-million-year-old site in northern Spain and later sites throughout Europe.These asymmetrical marks showed that 93 percent of the individuals sampled tended to stuff things in their mouths from the right-hand side.
在這項(xiàng)研究中，研究人員轉(zhuǎn)而從牙齒上尋求答案。他們分析了來自西班牙北部五十萬年前以及歐洲各地更晚些的遺址的人類牙齒化石，其上有由石器偶然留下的劃痕。這些不均勻的跡象表明，調(diào)查中有93%的人在進(jìn)食時(shí)是從右手邊將東西塞進(jìn)嘴里的。
Handedness reflects our brain’s bilateral organization, which goes hand-in-hand with our proficiency with language.So our hand preference, and our penchant for speech, may extend deep into our evolutionary past.
用手習(xí)慣反映了我們大腦左右兩邊的結(jié)構(gòu)，與我們對語言的精通息息相關(guān)。所以我們的用手偏好以及說話方式的傾向，可能早早就根植于我們的進(jìn)化史中了。
—Karen Hopkin