A Mnemonic System for Digit Span: One Year Later.
CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF PSYCHOLOGY
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With 18 months of practice on the digit-span task, a single subject has shown a steady improvement from 7 digits to 70 digits, and there is no evidence that performance will approach an asymptote. Continuous improvement in performance is accompanied by refinements in the subjects mnemonic system and hierarchical organization of his retrieval system. Author