Backward speech

The trait of backward speech is described as an ability to spontaneously and accurately reverse words. Two strategies of word reversal were reported: reversal according to the phonetic structure of the words or reversal according to their spelling. In the 1980s Nelson Cowan hypothesized that this ability is afforded by an extraordinary working memory. Recent studies have provided evidence that the working memory is indeed involved in this ability and further suggested that genetic factors may contribute to this trait.

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