Hopkins B, Lems W, Janssen B, Butterworth G
Department of Developmental Neurology, University Hospital, Groningen University, The Netherlands.
Hum Neurobiol. 1987;6(3):153-6.
Twelve full-term newlyborns were examined during wakefulness for head turning and maintenance of head position within the first hour after birth. Ten showed a rightward bias on both these measures. This is the youngest age since birth at which such lateralized functions have been reported. In all infants head position was strongly related to the hand which contacted the mouth but not with contacts to other parts of the face. The reason for this difference is discussed and it is suggested that head position and hand-mouth contacting may form a lateralized synergism which biases the development of handedness.
对12名足月儿在出生后第一小时清醒状态下进行了头部转动和头部位置维持的检查。其中10名在这两项指标上均表现出向右的偏向。这是自出生以来报告此类偏侧化功能的最小年龄。在所有婴儿中，头部位置与接触嘴巴的手密切相关，而与接触脸部其他部位的手无关。文中讨论了这种差异的原因，并提出头部位置和手-嘴接触可能形成一种偏侧化的协同作用，这种协同作用会影响利手的发展。
