Cernácek J
Akademik Jozef Cernácek, Bratislava.
Cesk Neurol Neurochir. 1990 May;53(3):151-5.
The use of one preferred hand for differentiated activities develops gradually and stabilizes at about the age of four years. Immediately after delivery the majority of infants turn spontaneously their head to the right and are able to perceive verbal stimuli and to respond to them by turning the head to the right. The recognition of verbal stimuli involves already in infants of 1-4 months the differentiation of different phonetic categories and perhaps also of bimodal and acoustic visual categories. The development of verbal functions end sat the 9th-12th year of life. The ontogenesis of functions of the right and left hemisphere is in addition to genetic factors influenced by perinatal cerebral lesions of various extent. During transmission of verbal functions from the left to the right hemisphere a more important part is played by plasticity than by the equipotentiality of the hemispheres. The right and left hemisphere develop at a different rate continuously, however, there are sudden developmental stages in some areas of the brain.
在进行不同活动时使用偏好的一只手的情况是逐渐发展的，并在大约四岁时稳定下来。出生后，大多数婴儿会自发地将头转向右侧，并且能够感知言语刺激，并通过将头转向右侧来做出反应。对言语刺激的识别在1至4个月大的婴儿中就已经涉及对不同语音类别以及可能还有双模式和视听类别的区分。言语功能的发展在生命的第9至12年结束。除了遗传因素外，左右半球功能的个体发生还受到不同程度围产期脑损伤的影响。在言语功能从左半球传递到右半球的过程中，可塑性比半球的等势性发挥着更重要的作用。左右半球持续以不同的速度发育，然而，大脑的某些区域存在突然的发育阶段。
