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|Other Titles:||Semantic Categorization in Prader-Willi Syndrome: A Case Study in Chinese|
Li-chi Elvis Yang
Department of English, NTNU
Prader-Will Syndrome (PWS), a multiple genetic anomaly disorder, is mainly associated with mild to moderate mental retardation. The purpose of the present study was to investigate the intactness of a PWS patient’s (AH) conceptual structure through “taxonomical hierarchy” and “prototypicality”, two vital dimensions capturing the external and internal structure of semantic categorization. Two experiments with linguistic and non-linguistic conceptual tasks revealed that the patient’s performance was much poorer than that of the mental age-matched normal controls. Further corroborated by follow-up qualitative interviews, AH’s incompleteness in her taxonomical hierarchy and deficiencies in the semantic representations were demonstrated for some exemplars under certain categories. However, prototypicality in AH was manifest to a certain degree in categories which AH had better knowledge of. Other linguistic impairment not directly related to hierarchy and prototypicality was also observed, evidencing the incompleteness of her conceptual knowledge as opposed to that of normal controls.
|Appears in Collections:||同心圓：語言學研究|
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