Alerting, orienting, and executive attention in older adults.
Alerting, orienting, and executive attention in older adults.
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DOI：
10.1017/s1355617710000767
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发表时间：
2010-09
影响因子：
2.6
通讯作者：
Holtzer, Roee
中科院分区：
文献类型：
--
作者：
Mahoney, Jeannette R.;Verghese, Joe;Goldin, Yelena;Lipton, Richard;Holtzer, Roee
注意力网络测试（ANT）评估警觉，定向和执行注意力。本研究旨在实现三个主要目标。首先，我们在一个相对较大的非痴呆老年人队列（n = 184）中确定了注意力网络的可靠性、效果和相互作用。其次，在这个年龄组的背景下，我们研究了实际年龄对注意力网络的影响。第三，评估血压对ANT性能的影响。结果显示高可靠性的ANT作为一个整体，并为特定的线索和侧翼类型。我们发现显着的三个注意力网络的主要影响，以及减少警觉，但增强定向效果在冲突解决试验。此外，实际年龄的增加和低血压都与执行注意力网络的表现显着较差。这些发现与老年人的执行功能下降以及额叶血流量减少对注意力要求任务的个体差异的合理影响是一致的。
The Attention Network Test (ANT) assesses alerting, orienting, and executive attention. The current study was designed to achieve three main objectives. First, we determined the reliability, effects, and interactions of attention networks in a relatively large cohort of non-demented older adults (n = 184). Second, in the context of this aged cohort, we examined the effect of chronological age on attention networks. Third, the effect of blood pressure on ANT performance was evaluated. Results revealed high-reliability for the ANT as a whole, and for specific cue and flanker types. We found significant main effects for the three attention networks as well as diminished alerting but enhanced orienting effects during conflict resolution trials. Furthermore, increased chronological age and low blood pressure were both associated with significantly worse performance on the executive attention network. These findings are consistent with executive function decline in older adults and the plausible effect of reduced blood flow to the frontal lobes on individual differences in attention demanding tasks.