Corbetta D, Thelen E
Department of Psychology, Indiana University, USA.
J Exp Psychol Hum Percept Perform. 1996 Apr;22(2):502-22. doi: 10.1037//0096-1523.22.2.502.
Patterns of interlimb coordination associated with infant reaching fluctuate frequently over developmental time. This study investigated whether these fluctuations are related to coordination tendencies. Interlimb patterns were studied in reaching and nonreaching movements in 4 infants, which were followed through their 1st year. Each week, reaching and nonreaching endpoint kinematics were recorded in both arms during multiple 14-s trials. It was found that patterns of interlimb coordination in reaching matched coordination tendencies in nonreaching. Reaching fluctuated between uni- and bimanual periods. During the bimanual periods, nonreaching interlimb activity tended to be synchronous. During the unimanual periods, nonreaching activity revealed no predominant form of interlimb coordination. It is argued that changing coordination tendencies may influence the organization of specific goal-oriented behaviors from early in life.
与婴儿够物相关的肢体间协调模式在发育过程中频繁波动。本研究调查了这些波动是否与协调倾向有关。对4名婴儿在其第一年的够物和非够物动作中的肢体间模式进行了研究。每周，在多次14秒的试验中记录双臂够物和非够物的终点运动学数据。结果发现，够物时的肢体间协调模式与非够物时的协调倾向相匹配。够物在单手动期和双手动期之间波动。在双手动期，非够物的肢体间活动倾向于同步。在单手动期，非够物活动没有显示出肢体间协调的主要形式。有人认为，不断变化的协调倾向可能会从生命早期就影响特定目标导向行为的组织。
