The effect of articulatory suppression in free recall

When subjects are required to utter a series of redundant speech sounds while memorizing lists of words, performance is impaired and the effect of phonemic similarity is reduced. If the recency effect in free recall is based upon phonemic coding then it should be very susceptible to the effects of such a procedure. Two experiments therefore explored the influence of articulatory suppression on performance in free recall. Both produced reliable effects of suppression, but neither showed the predicted interaction between suppression and serial position. It is suggested that the recency effect does not reflect a short-term phonemic store.

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