Reaching patterns across working space: The effects of handedness, task demands, and comfort levels
Reaching patterns across working space: The effects of handedness, task demands, and comfort levels
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DOI：
10.1080/13576500600775692
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发表时间：
2006-09-01
期刊：
影响因子：
1.4
通讯作者：
Bryden, Pamela J.
中科院分区：
文献类型：
--
作者：
Mamolo, Carla M.;Roy, Eric A.;Bryden, Pamela J.
两个实验的报告，检查技能的要求，位置和感知舒适度的优先达到测试与左手和右手的参与者。在实验1中，任务要求的效果进行了检查，让参与者执行不同难度的任务与工具（电梯，哑剧，和使用）被放置在一个阵列中的工作空间。首选的手达到占主导地位的中线和同侧的位置，对侧的位置，首选的手达到任务难度增加的频率显着下降。在实验2中，我们开发了一种新的措施（舒适度评定量表），以评价达到运动的主观舒适感。使用相同的一系列工具和任务，参与者被指示使用哪只手来执行伸展运动，然后对运动的感觉进行评分。首选的手总是被评为舒适，而非首选的手是敏感的任务需求和工具位置的影响。评级显示，这是舒适的水平与非首选的手，而不是与首选的手，促成了模式看到的第一项研究。舒适度评定量表为工作空间内伸展运动的分布提供了新的见解。
Two experiments are reported which examine skill demands, location, and perceived comfort levels for a preferential reaching test with left- and right-handed participants. In Experiment 1, the effect of task demands was examined by having participants perform tasks of varying difficulty with tools ( Lift, Pantomime, and Use) that were placed in an array in working space. Preferred hand reaches predominated at the midline and ipsilateral positions, and decreased significantly for contralateral positions, where the frequency of preferred hand reaches increased with task difficulty. In Experiment 2 we developed a new measure ( the Comfort Rating Scale) to rate the subjective feeling of comfort for reaching movements. Using the same array of tools and tasks, participants were instructed which hand to use to perform reaching movements, and then rated how the movement felt. The preferred hand was always rated as being comfortable, whereas the non-preferred hand was sensitive to the effects of task demands and tool position. The ratings showed that it was the level of comfort with the non- preferred hand, rather than with the preferred hand, that contributed to the patterns seen on the first study. The Comfort Rating Scale provides new insight into the distribution of reaching movements within working space.