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Title: Verbal short-term memory and language impairments in Cantonese speakers after stroke
Authors: Ho, DWL 
Kong, APH
Koon, NT
Issue Date: 2017
Source: International journal of speech-language pathology, 2017, p. 1-10
Abstract: Purpose: The study examined the relationship between verbal short-term memory (STM) and language impairment in Cantonese speakers after stroke. It is hypothesised that Cantonese speakers with left-hemisphere (LH) stroke would perform worse than those with right hemisphere (RH) stroke and normal controls. Specific linguistic factors of Cantonese might affect results in the tasks. Method: Fifteen participants with LH stroke, 10 with RH stroke and 25 healthy controls were tested with auditory–verbal immediate serial recall (ISR) tasks and auditory linguistic tasks. All stroke participants were assessed with the Cantonese version of Western Aphasia Battery (CAB). Result: The LH group performed significantly worse than the RH and healthy control groups in the auditory verbal ISR and auditory linguistic tasks. There were significant lexicality, frequency and imageability effects in most tasks. Auditory discrimination and word comprehension tasks, but not the auditory word recognition task had correlations with ISR tasks. Conclusion: Verbal STM and language performance of Cantonese-speakers with history of LH stroke were inferior to RH stroke and healthy controls. The effects of lexicality, word frequency and imageability on verbal STM memory performance were found. Cantonese tones have effects on performance in auditory word recognition task, similar to onset, nucleus and rime.
Keywords: Cantonese
Language impairment
Short-term memory
Publisher: Informa Healthcare
Journal: International journal of speech-language pathology 
ISSN: 1754-9515
EISSN: 1754-9515
DOI: 10.1080/17549507.2017.1287218
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