PubMed · 5057249
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N Davis, E Leach. 1972. Scaling aphasics' error responses.. https://doi.org/10.1044/jshd.3703.305
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This paper describes the performance of an aphasic patient, R.W., in producing the sounds of words and in verbal rehearsal. R.W. showed evidence of retained abilities to access aspects of the forms of spoken words but made numerous phonemic paraphasias in single word production tasks. He did not show features of dysarthria or apraxia of speech. This pattern indicates that his deficit affected a process that plans the phonological forms of spoken words. R.W.'s performances in short-term memory and metalinguistic tasks involving single words were consistent with impaired rehearsal functions. The pattern of results indicates that rehearsal requires planning of the phonological forms of spoken items and suggests that activating entries in the phonological output lexicon is not adequate to permit rehearsal to proceed normally.
Subject selection criteria and descriptive data were compiled from 15 consecutive aphasia group studies published in Brain and Language from its inception (1974-1976) and two decades later. While some measures remain constant (aphasia type and lesion site are most commonly used in both periods), additional measures are reported only or more frequently in the recent period (e.g., age, handedness, bilingualism, language spoken, multiple vs. single lesions). Of interest is the decrease in the total number of subjects included in aphasia group studies from the early to the current period.