AGING, INHIBITION, AND VERBOSITY
AGING, INHIBITION, AND VERBOSITY
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DOI：
10.1093/geronj/48.5.p225
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发表时间：
1993-09-01
期刊：
影响因子：
--
通讯作者：
GOLD, DP
中科院分区：
文献类型：
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作者：
ARBUCKLE, TY;GOLD, DP
The hypothesis that off-target verbosity, defined as extended speech that is lacking in focus or coherence, is mediated by an age-related decline in the ability to inhibit task-irrelevant thoughts, was evaluated in a sample of 205 community-dwelling elderly volunteers aged 61-90.结果表明，衡量抑制或删除工作记忆中存储的不相关信息的能力的四项任务的表现在冗长方差中占很大比例，而其他认知指标的表现与之无关。抑制与任务无关的信息的能力和年龄之间的共同影响表明，这种特定能力的年龄下降可能是先前观察到的与年龄相关的冗长增加的基础。相比之下，心理社会因素对冗长分数解释方差的贡献相对独立于抑制相关测量和年龄。研究结果被讨论为表明额叶可能参与脱靶言语。
The hypothesis that off-target verbosity, defined as extended speech that is lacking in focus or coherence, is mediated by an age-related decline in the ability to inhibit task-irrelevant thoughts, was evaluated in a sample of 205 community-dwelling elderly volunteers aged 61-90. Results showed that performance on four tasks that measured the ability to suppress or remove irrelevant information stored in working memory accounted for a significant proportion of the variance in verbosity, whereas performance on other cognitive measures was unrelated to it. Shared effects between the measures of the ability to inhibit task-irrelevant information and age suggested that age declines in this particular ability may underlie previously observed age-related increases in verbosity. In contrast, the contribution of psychosocial factors to explained variance in verbosity scores was relatively independent of that of inhibition-related measures and age. The results were discussed as suggesting a possible frontal lobe involvement in off-target speech.