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Forget Peter Piper and his Peck of Pickled Peppers. Psychologists have come up with what may be the world’s most frustrating tongue-twister.
It may not make much sense, but the phrase ‘pad kid poured curd pulled cold’ completely defeated volunteers taking part in a U.S. speech study.
Asked to repeat the phrase 10 times at a fast lick, many of the participants clammed up and stopped talking altogether, according to lead researcher Dr. Stefanie Shattuck-Hufnagel, from Massachusetts Institute of Technology (MIT) in Boston.
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