Attention influences sensory integration for postural control in older adults
Attention influences sensory integration for postural control in older adults
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DOI：
10.1016/s0966-6362(01)00144-8
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发表时间：
2001-12-01
期刊：
影响因子：
2.4
通讯作者：
Furman, JM
中科院分区：
文献类型：
--
作者：
Redfern, MS;Jennings, JR;Furman, JM
本研究调查了注意力对青年和老年人姿势控制的感觉统合成分的影响。18名年轻和18名老年健康受试者在不同的姿势挑战条件下进行信息处理任务。姿势条件包括坐着，站在一个坚实的表面上，站在摇摆参考地板上，站在摇摆参考地板上，同时观看摇摆参考场景。在每个条件下，反应时间（RT）进行了测量，在两个简单的和一个抑制RT任务。对于抑制任务，推导出抑制动作所需的时间，称为抑制时间（IT）。执行RT任务与老年受试者的姿势摇摆增加有关，但在年轻受试者中则不然。最大的影响，RT任务的摇摆老年人被发现在摇摆参考地板/摇摆参考场景条件。相反，姿势条件有RT任务的表现在年轻和老年人的影响。IT增加，在年轻和老年人的科目，只有在摇摆参考地板/场景条件。这些结果表明，姿势控制的感觉统合成分似乎特别需要注意。此外，我们的数据表明，当感觉统合要求高时，与抑制控制相关的注意过程会参与。(C)2001 Elsevier Science B. V.保留所有权利。
This Study investigated the influence of attention on the sensory integration component Of Postural control in Young and older adults. Eighteen young and 18 older healthy subjects performed information-processing tasks during different postural challenge conditions. Postural conditions included seated, standing on a firm surface, standing on a sway-referenced floor, and standing on a sway-referenced floor while viewing a sway-referenced scene. During each condition, reaction time (RT) was measured during two simple and one inhibitory RT tasks. For the inhibitory task, the time required to inhibit an action was derived, termed the inhibitory time (IT). Performing a RT task was associated with increased postural sway in older subjects, but not in young Subjects. The greatest influence of RT task on sway of older subjects was found during the sway-referenced floor/sway-referenced scene condition. Conversely, postural condition had an influence on RT task performance in both young and older subjects. The IT was increased in both young and older subjects only during the sway-referenced floor/scene condition. These results suggest that the sensory integration component of postural control in particular seems to require attention. Further, our data suggest that attentional processes related to inhibitory control are engaged when sensory integration requirements are high. (C) 2001 Elsevier Science B.V. All rights reserved.