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首页> 外文期刊>Journal of Behavioral and Brain Science >A Motor Programming Task Activates the Prefrontal Cortex More than a Sensitivity-to-Interference Task or an Inhibitory Control Task in Older Adults
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A Motor Programming Task Activates the Prefrontal Cortex More than a Sensitivity-to-Interference Task or an Inhibitory Control Task in Older Adults

机译：运动编程任务对老年人的前额叶皮层的激活多于对干扰的敏感性任务或抑制性控制任务。

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The objectives of this study were to detect age-related differences in activation of the prefrontal cortex (PFC) during the tasks of hand motions and to determine an activity-related task type activating the PFC. PFC activation during three tasks, three subtests of the Frontal Assessment Battery (FAB), was investigated in 77 healthy adults by using near-infrared spectroscopy (NIRS). The tasks were a motor programming task (FAB 3), a sensitivity-to-interference task (FAB 4) and an inhibitory control task (FAB 5). We divided participants into three age groups of Younger (20 - 39 years), Middle-aged (40 - 59 years), and Older (60 - 81 years), and compared relative changes in oxygenated hemoglobin concentration in the PFC during the tasks. The activation in the frontal pole (FP) and the dorsolateral prefrontal cortex (DLPFC) during a motor programming task and a sensitivity-to-interference task showed no main effects by age. The results indicated that they were not likely to be affected by age-related cognitive decline compared to an inhibitory control task. In addition, in the Older group, a motor programming task induced significantly greater activation than a sensitivi-ty-to-interference task at eleven channels out of twelve on which we focused (p < 0.05). It was suggested that some characteristic factors included in the motor programming task such as repetition of a series of hand motions and attention to action have the potential to contribute to PFC activation in older adults. These findings provide a clue to understanding daily activities available to suppress cognitive decline of older adults by activating the PFC.
机译：这项研究的目的是要发现在手势操作过程中年龄相关的前额叶皮层（PFC）激活差异，并确定激活PFC的活动相关任务类型。通过使用近红外光谱（NIRS）在77名健康成年人中调查了三项任务（即正面评估电池（FAB）的三个子测试）中的PFC激活。这些任务是运动编程任务（FAB 3），对干扰的敏感性任务（FAB 4）和抑制控制任务（FAB 5）。我们将参与者分为三个年龄段：较年轻（20-39岁），中年（40-59岁）和较老（60-81岁），并比较了任务期间PFC中氧合血红蛋白浓度的相对变化。运动编程任务和对干扰的敏感性任务期间，额杆（FP）和背外侧前额叶皮层（DLPFC）的激活并未显示出年龄的主要影响。结果表明，与抑制性控制任务相比，他们不太可能受到与年龄相关的认知下降的影响。另外，在较老的组中，在我们关注的十二个通道中，十一个通道中的运动编程任务比敏感度-干扰任务诱导的激活显着更大（p <0.05）。有人认为，运动编程任务中包括的某些特征性因素，例如重复一系列手部动作和注意动作，可能有助于老年人激活PFC。这些发现为了解通过激活PFC抑制老年人认知能力下降的日常活动提供了线索。

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