摘要：Objective To explore the features of connectedspeech produced by Chinese mild Alzheimer's disease(AD) patients. Methods Thirty Chinese mild AD patients( eight males and 22 females,and the age was(72. 73 ± 7. 78 ) years) and 30 age-and educationmatchednormal controls from three communities were recruitedin Xuanwu Hospital from January 2018 to May2018. All subjects completed tasks of picture naming,semantic fluency (animal),and Cookie Theft picture description.Picture description was analyzed for speechproduction ( total word output,speech rate,sound errors),lexical content (number of nouns and verbs,proportionof pronouns and verbs,semantic errors),informationcontent (information unit,idea density,efficiency),syntactic structure and complexity (mean length ofutterance,words in sentences,syntactic errors). Differencesbetween the groups were calculated. Associationbetween picture naming,semantic fluency,and measuresin picture descriptions was analyzed.

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