Fractionation of working memory: Neuropsychological evidence for a phonological short-term store

A patient with grossly defective short-term memory but fluent speech was studied in order to pinpoint the locus of the deficit. Her immediate memory for consonant sequences showed a clear phonological similarity effect with auditory presentation, but no effect of similarity when presentation was visual. She showed no effect of articulatory suppression and no effect of word length on span, both of which suggest that she was not using subvocal...