When I'm talking I can hear my own voice. And with that feedback I can tell almost immediately when I’ve made an error. Like I just did. An error.
Adults have this skill and so do older children. But we are not born with this ability. It develops between ages two and four. So finds a study in the journal Current Biology.
Researchers had adults, four-year-olds, and two-year-olds say “bed” repeatedly. But scientists filtered the sound so that the subjects heard themselves through headphones pronouncing it as “bad.” Adults spontaneously compensated, and changed so that the word sounded correct to their own ears. They actually wound up saying “bid.”
Four-year olds also adjusted their speech.
But the two-year olds kept saying “bed” even though they kept hearing “bad.”
So if two-year olds ignore their own vocal feedback, how do they learn to say words correctly?
Well, it’s not clear. ______（請(qǐng)?zhí)钜痪湓挕＃_______
Researchers think it might simply be that they rely on parents to monitor and correct their speech.
Then again, with sentences like..., it's no surprise they aren’t paying attention to what they are hearing.
But this study suggests that toddlers might have an alternative source of auditory feedback.
suggest 引出句型。 當(dāng)我講話的時(shí)候我能聽到我自己的聲音。根據(jù)這種反饋我就能及時(shí)發(fā)現(xiàn)說話時(shí)的錯(cuò)誤。就像我剛才那樣，一個(gè)錯(cuò)誤~ 成年人和稍大一些的小孩子都可以做到。但是我們可不是天生就會(huì)哦~是在2到4歲的時(shí)候才發(fā)育形成的。這項(xiàng)研究已發(fā)表在《當(dāng)代生物學(xué)雜志》上。 研究人員分別讓成年人、4歲兒童和2歲大的孩子重復(fù)“bed”這個(gè)單詞。但是科學(xué)家們把聲音過濾掉了，因此受試對(duì)象們只能從他們戴的耳機(jī)中聽到“bad”這個(gè)單詞。成年人立即能夠做出補(bǔ)償并且改正這個(gè)錯(cuò)誤，因此他們重復(fù)的時(shí)候說的單詞會(huì)校正其耳中聽到的那個(gè)詞，他們興奮的重復(fù)“bid”這個(gè)詞。 4歲兒童也相應(yīng)的對(duì)所說的做出調(diào)整。 但是2歲兒童仍然保持重復(fù)說“bed”這個(gè)詞，即使他們其實(shí)一直聽到的詞是“bad”。 所以如果2歲兒童忽略他們自己發(fā)音的反饋信息，他們會(huì)如何正確的學(xué)習(xí)單詞呢？ 目前這還不是很清楚。但是這項(xiàng)研究揭示幼兒一定已經(jīng)具備對(duì)聲音反饋調(diào)整的資源。研究人員們認(rèn)為也許就是這樣：他們依靠父母來監(jiān)測(cè)并校正他們語言上的錯(cuò)誤。 那么再聽，像這些句子……（幼兒囈語，我實(shí)在搞不清它在說什么。。。），如果他們并沒有注意自己聽什么，這一點(diǎn)兒也不奇怪。