Hines T
Exp Aging Res. 1979 Jun;5(3):207-15. doi: 10.1080/03610737908257199.
Reaction times and error rates in a letter classification task were examined in two groups of subjects, one with a mean age of 20.7 years, the other with a mean age of 63.6 years, under conditions where specific feedback regarding the speed and accuracy of performance on each trial either was or was not provided. Feedback produced a speed-accuracy trade-off for younger subjects. This finding offers no support for the position that feedback results in a general improvement in performance. Older subjects did not show a speed-accuracy trade-off. Rather, feedback resulted in trends toward both longer reaction times and higher error rates. These results are interpreted as showing that feedback has a phasic alerting effect in the younger subjects, but not in the older subjects.
在两组受试者中，对字母分类任务中的反应时间和错误率进行了检查。一组受试者的平均年龄为20.7岁，另一组的平均年龄为63.6岁。在每次试验中，分别提供或不提供关于表现速度和准确性的具体反馈的条件下进行测试。反馈在年轻受试者中产生了速度-准确性权衡。这一发现不支持反馈会导致整体表现改善的观点。年长受试者没有表现出速度-准确性权衡。相反，反馈导致反应时间延长和错误率升高的趋势。这些结果被解释为表明反馈对年轻受试者有阶段性的警觉作用，但对年长受试者没有。
