Attentional demands of postural control: The ability to selectively allocate information-processing resources
Attentional demands of postural control: The ability to selectively allocate information-processing resources
复制标题
DOI：
10.1016/j.gaitpost.2006.02.002
复制
发表时间：
2007-01-01
期刊：
影响因子：
2.4
通讯作者：
Woollacott, Marjorie H.
中科院分区：
文献类型：
--
作者：
Siu, Ka-Chun;Woollacott, Marjorie H.
大多数研究表明，恢复身体稳定性的过程需要信息处理资源，但成年人是否有能力选择性地分配资源来保持平衡尚不清楚。本实验使用可变优先级双任务范例，研究了年轻人能够在姿势任务和视觉空间记忆任务之间转移注意力的程度。我们的结果表明，依赖于教学设置（专注于视觉空间记忆与姿势任务）的言语反应时间存在显着差异，但身体摇摆测量没有差异，表明年轻人有调节视觉空间记忆任务的能力，但没有调节姿势任务焦点的能力。这表明注意力任务中存在层次结构，其中姿势稳定性是稳定凝视和头部位置的优先事项。 (C) 2006 Elsevier B.V. 保留所有权利。
Most studies have suggested the process of recovering body stability requires information-processing resources, but whether adults have the ability to selectively allocate resources to maintain balance is not known. Using a variable priority dual-task paradigm the present experiment investigated the extent to which young adults are able to shift attention between a postural task and a visual spatial memory task. Our results demonstrated a significant difference in verbal response time dependent on instructional set (focus on visual spatial memory versus postural task) but no difference in body sway measurement, indicating the ability of young adults to modulate visual spatial memory task, but not postural task focus. This suggests the existence of a hierarchy within attentional tasks with postural stability being a priority to stabilize gaze and head position. (C) 2006 Elsevier B.V. All rights reserved.