Powell D A, Milligan W L, Furchtgott E
J Gerontol. 1980 Jan;35(1):57-65. doi: 10.1093/geronj/35.1.57.
Heart rate, blood pressure, and electrodermal activity were assessed in old (55 to 70) and young (20 to 35) veterans during their performance on serial learning and reaction time tasks. More older than younger subjects exhibited systolic blood pressure increases during the tasks; baseline heart rate was also slower in the older subjects. However, the phasic electrodermal response of the older Ss during the reaction time task was of smaller magnitude than that of the young Ss, and there were no phasic HR differences between the groups. Learning and psychomotor performance of the older subjects who revealed systolic BP pressor responses was significantly better than that of those who showed depressor responses, but this relationship was not obtained in the younger subjects. These relationships were more pronounced on easier than on more difficult tasks.
在连续学习和反应时间任务过程中，对年龄较大（55至70岁）和年龄较小（20至35岁）的退伍军人的心率、血压和皮肤电活动进行了评估。在任务过程中，年龄较大的受试者比年龄较小的受试者出现收缩压升高的情况更多；年龄较大的受试者基线心率也较慢。然而，在反应时间任务中，年龄较大的受试者的阶段性皮肤电反应幅度小于年龄较小的受试者，并且两组之间没有阶段性心率差异。出现收缩压升压反应的年龄较大的受试者的学习和心理运动表现明显优于出现降压反应的受试者，但在年龄较小的受试者中未发现这种关系。这些关系在较简单的任务上比在较困难的任务上更明显。
