Der Geoff, Deary Ian J
Medical Research Council Social and Public Health Sciences Unit, University of Glasgow, 4 Lilybank Gardens, Glasgow G12 8RZ, Scotland, UK.
Psychol Aging. 2006 Mar;21(1):62-73. doi: 10.1037/0882-7974.21.1.62.
Reaction times (RTs) slow and become more variable with age. Research samples are typically small, biased, and of restricted age range. Consequently, little is known about the precise pattern of change, whereas evidence for sex differences is equivocal. The authors reanalyzed data for 7,130 adult participants in the United Kingdom Health and Lifestyle Survey, originally reported by F. A. Huppert (1987). The authors modeled the age differences in simple and 4-choice reaction time means and variabilities and tested for sex differences. Simple RT shows little slowing until around 50, whereas choice RT slows throughout the adult age range. The aging of choice RT variability is a function of its mean and the error rate. There are significant sex differences, most notably for choice RT variability.
反应时间（RTs）会随着年龄增长而变慢且变得更具变异性。研究样本通常较小、存在偏差且年龄范围有限。因此，对于变化的确切模式知之甚少，而关于性别差异的证据也不明确。作者重新分析了英国健康与生活方式调查中7130名成年参与者的数据，该数据最初由F. A. 赫珀特（1987年）报告。作者对简单反应时间均值和4选反应时间均值及变异性中的年龄差异进行了建模，并测试了性别差异。简单反应时间在50岁左右之前几乎没有变慢，而选择反应时间在整个成年年龄范围内都会变慢。选择反应时间变异性的老化是其均值和错误率的函数。存在显著的性别差异，最明显的是在选择反应时间变异性方面。
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