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?zhí)钜痪湓?。）________
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)我講話的時候我能聽到我自己的聲音。根據(jù)這種反饋我就能及時發(fā)現(xiàn)說話時的錯誤。就像我剛才那樣，一個錯誤~ 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哦~是在2到4歲的時候才發(fā)育形成的。這項研究已發(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”這個單詞。但是科學(xué)家們把聲音過濾掉了，因此受試對象們只能從他們戴的耳機中聽到“bad”這個單詞。成年人立即能夠做出補償并且改正這個錯誤，因此他們重復(fù)的時候說的單詞會校正其耳中聽到的那個詞，他們興奮的重復(fù)“bid”這個詞。 4歲兒童也相應(yīng)的對所說的做出調(diào)整。 但是2歲兒童仍然保持重復(fù)說“bed”這個詞，即使他們其實一直聽到的詞是“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。但是這項研究揭示幼兒一定已經(jīng)具備對聲音反饋調(diào)整的資源。研究人員們認為也許就是這樣：他們依靠父母來監(jiān)測并校正他們語言上的錯誤。 那么再聽，像這些句子……（幼兒囈語，我實在搞不清它在說什么。。。），如果他們并沒有注意自己聽什么，這一點兒也不奇怪。