Tan U
Department of Physiology, Medical Faculty, Ataturk University, Erzurum, Turkey.
Percept Mot Skills. 1994 Feb;78(1):287-90. doi: 10.2466/pms.1994.78.1.287.
Grasp-reflex strengths were quantitatively measured from the right and left hands of 70 full-term human neonates. The right-left grasp-reflex linearly correlated with grasp-reflex only of the right hand in neonates with a right-ear-facing-out prenatal position. In neonates with left-ear-facing-out prenatal position, this grasp-reflex linearly increased with the grasp-reflex of the right hand and linearly decreased with the grasp reflex of the left hand. It was suggested that grasp-reflex asymmetry in neonates may, at least partly, depend upon prenatal position, which may also influence the later developing hand preference in humans.
对70名足月新生儿的右手和左手的抓握反射强度进行了定量测量。在产前右耳朝外位置的新生儿中，左右抓握反射仅与右手的抓握反射呈线性相关。在产前左耳朝外位置的新生儿中，这种抓握反射随右手抓握反射呈线性增加，随左手抓握反射呈线性下降。有人提出，新生儿的抓握反射不对称可能至少部分取决于产前位置，这也可能影响人类后期发展的用手偏好。
