Abstract
The present study investigated the relationship between verbal short-term memory and motor speech processes in healthy control subjects and five patients suffering from Broca's aphasia. Control subjects showed a phonological similarity effect, a word length effect and an articulatory suppression effect, supporting the hypothesis of a phonological store and an articulatory loop component of short-term memory. A similar effect of phonological similarity was observed in the aphasic patients, while the effects of word length and articulatory suppression were reduced. In control subjects, measures of short-term memory were correlated to measures of motor speech rate only if speech rate was assessed in more complex conditions (such as sentence rather than syllable repetition). There was also evidence of an association of speech impairment and short-term memory deficits in the aphasic patients.
Highlights
The relationship between motor speech processes and phonological encoding has been an important issue in recent research on short-term memory
Short-term memory Memory span data are presented in Table I for the individual patients and the control group
The present study aimed to investigate the profile of short-term memory dysfunction in Broca's aphasia and to further explore the relationship between memory and motor speech processes
Summary
The relationship between motor speech processes and phonological encoding has been an important issue in recent research on short-term memory. Within this context, Baddeley (1990) has proposed a working memory model in which a discrete cognitive subsystem, the so-called articulatory or phonological loop, regulates the processing of speech-based information. According to this model, the phonological loop consists of two components, a passive phonological store and an articulatory rehearsal process based on inner speech. This process involves articulatory rehearsal converting the visual material into a phonological code before registering it in the phonological store (Baddeley, 1990)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
