Language decline across the life span: Findings from the Nun Study
Language decline across the life span: Findings from the Nun Study
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DOI:
10.1037//0882-7974.16.2.227
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发表时间:
2001-06-01
影响因子:
3.7
通讯作者:
Mitzner, TL
中科院分区:
文献类型:
--
作者:
Kemper, S;Greiner, LH;Mitzner, TL
The present study examines language samples from the Nun Study. Measures of grammatical complexity and idea density were obtained from autobiographies written over a 60-year span. Participants who had met criteria for dementia were contrasted with those who did not. Grammatical complexity initially averaged 4.78 ( on a 0-to-7-point scale) for participants who did not meet criteria for dementia and declined .04 units per year; grammatical complexity for participants who met criteria for dementia initially averaged 3.86 and declined .03 units per year, Idea density averaged 5.35 propositions per 10 words initially for participants who did not meet criteria for dementia and declined an average of .03 units per year, whereas idea density averaged 4.34 propositions per 10 words initially for participants who met criteria for dementia and declined .02 units per year. Adult experiences. in general, did not moderate these declines.