Natalie Schwob, Ricky Groner, Amy L Lebkuecher, Sylvia Rudnicki, Daniel J Weiss
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引用次数: 0
摘要
人类复杂运动规划的特征之一是为未来的行动准备抓握物体，称为二阶运动规划。这种能力在人类中有很长的发展轨迹，非人类灵长类动物也有这种能力。在这里，我们展示了七只棉顶绢毛猴的一个定位任务，这个任务已经提示了一些灵长类物种的不同抓取行为。绢毛猴可以用一种有效的抓握来把食物粘在木桩的末端送到嘴里(径向抓握)，也可以用一种低效的抓握来重新定位(尺骨抓握)。绢毛猴使用径向抓握的方式非常一致。这些数据支持形态约束理论，表明灵巧度有限的物种(无法进行精确抓取)可能由于低效抓取姿势的成本增加而表现出更一致的二阶运动规划。(PsycInfo Database Record (c) 2022 APA，版权所有)。
Consistent second-order motor planning by cotton-top tamarins (Saguinus oedipus): Evidence from a dowel task.
One of the hallmarks of complex motor planning in humans involves grasping objects in preparation for future actions, termed second-order motor planning. This ability has an extended developmental trajectory in humans and is also shared with nonhuman primates. Here, we presented seven cotton-top tamarins with a dowel task that has prompted variable grasping behaviors for some primate species. Tamarins could use either an efficient grasp to bring food stuck onto the end of a dowel to their mouth (radial grasp) or an inefficient grasp that required repositioning (ulnar grasp). The tamarins were very consistent in their use of radial grasps. These data support the morphological constraint theory suggesting that species with limited dexterity (inability to perform precision grasps) may demonstrate more consistent second-order motor planning due to the increased cost of inefficient grasping postures. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
期刊介绍：
The Journal of Comparative Psychology publishes original research from a comparative perspective
on the behavior, cognition, perception, and social relationships of diverse species.
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