Walking and talking: dual-task effects on street crossing behavior in older adults.
Walking and talking: dual-task effects on street crossing behavior in older adults.
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DOI：
10.1037/a0021566
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发表时间：
2011-06
影响因子：
3.7
通讯作者：
Kramer, Arthur F.
中科院分区：
文献类型：
--
作者：
Neider, Mark B.;Gaspar, John G.;McCarley, Jason S.;Crowell, James A.;Kaczmarski, Henry;Kramer, Arthur F.
随着手机和便携式音乐播放器等技术变得越来越普遍，同时执行多项任务的能力变得越来越重要。在目前的研究中，我们研究了老年人和年轻人在模拟过街任务中的双重任务成本，该任务是在一个身临其境的虚拟环境中构建的，带有集成的跑步机，这样参与者就可以像他们在现实世界中那样行走。参与者被要求在不分心、听音乐或打电话的情况下穿过不同难度的模拟街道。当穿越任务困难时，老年人比年轻人更容易受到双重任务损害的影响；在年轻人组中，双重任务的成本基本上是不存在的。老年人的表现成本主要反映在超时率上。与听音乐或不分心时相比，在手机上交谈时，老年人完成穿越的可能性更小。对每个十字路口之前在街道旁花费的时间的分析显示，老年人比年轻人花更长的时间开始横穿马路，这表明认知规划过程中存在障碍。参与者可能在每个十字路口分析交通模式并决定何时过马路。我们的数据表明，多任务处理的成本对老年人来说可能特别危险，即使是在日常活动中，比如过马路。
The ability to perform multiple tasks simultaneously has become increasingly important as technologies such as cell phones and portable music players have become more common. In the current study, we examined dual-task costs in older and younger adults using a simulated street crossing task constructed in an immersive virtual environment with an integrated treadmill so that participants could walk as they would in the real world. Participants were asked to cross simulated streets of varying difficulty while either undistracted, listening to music, or conversing on a cell phone. Older adults were more vulnerable to dual-task impairments than younger adults when the crossing task was difficult; dual-task costs were largely absent in the younger adult group. Performance costs in older adults were primarily reflected in timeout rates. When conversing on a cell phone older adults were less likely to complete their crossing compared to when listening to music or undistracted. Analysis of time spent next to the street prior to each crossing, where participants were presumably analyzing traffic patterns and making decisions regarding when to cross, revealed that older adults took longer than younger adults to initiate their crossing, and that this difference was exacerbated during cell phone conversation, suggesting impairments in cognitive planning processes. Our data suggest that multi-tasking costs may be particularly dangerous for older adults even during everyday activities such as crossing the street.
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影响因子：
2.6
作者：
DUNCAN, J
通讯作者：
DUNCAN, J
DOI：
10.1093/gerona/51a.3.m116
发表时间：
1996-05-01
影响因子：
5.1
作者：
Chen, HC;Schultz, AB;Guire, KE
通讯作者：
Guire, KE
影响因子：
3.5
作者：
Becic, Ensar;Dell, Gary S.;Kramer, Arthur F.
通讯作者：
Kramer, Arthur F.
影响因子：
3.7
作者：
Lövdén, M;Schellenbach, M;Lindenberger, U
通讯作者：
Lindenberger, U
影响因子：
2.4
作者：
Dell'Acqua, R;Jolicoeur, P
通讯作者：
Jolicoeur, P