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首页> 外文期刊>Aging, neuropsychology and cognition >Behavioral evidence for a differential modulation of semantic processing and lexical production by aging: a full linear mixed-effects modeling approach
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Behavioral evidence for a differential modulation of semantic processing and lexical production by aging: a full linear mixed-effects modeling approach

机译：老化的语义加工和词汇生产差异调制的行为证据：全线混合效应建模方法

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The effect of normal aging on lexical production and semantic processing was evaluated in 72 healthy participants. Four tasks were used, picture naming (PN), picture categorization (PC), numerical judgment (NJ), and color judgment (CJ). The dependence of reaction time (RT) and correct responses with age was accounted by mixed-effects models. Participants underwent neuropsychological testing for verbal, executive, and memory functions. The RTs increase significantly with age for all tasks. After parceling out the non-specific cognitive decline, as reflected by the NJ task, the RT for the PN task decreases with age. Behavioral data were interpreted in relation with neuropsychological scores. Our results suggest that (a) naming becomes more automatic and semantic processing slightly more difficult with age, and (b) a non-specific general slowdown of cognitive processing occurs with age. Lexical production remained unaltered, based on compensatory automatic processes. This study also suggests a possible slowdown of semantic processing, even in normal aging.
机译：在72名健康参与者中评估了正常老化对词汇生产和语义加工的影响。使用了四个任务，图片命名（PN），图片分类（PC），数值判断（NJ）和颜色判断（CJ）。反应时间（RT）的依赖性和对年龄的正确反应被混合效果模型占据。参与者接受了神经心理学测试的口头，执行和记忆功能。所有任务的年龄都随着年龄而增加。在包裹非特异性认知下降之后，正如NJ任务所反映的那样，PN任务的RT随着年龄而减少。行为数据与神经心理学分数有关。我们的研究结果表明，随着年龄的年龄难以更加困难，（a）命名变得更加困难，（b）年龄发生的非特定一般性放缓。基于补偿性自动过程，词汇产量保持不变。本研究还表明即使在正常老化中也可能降低语义处理。

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