Tan U
Department of Physiology, Medical Faculty, Atatürk University, Erzurum, Turkey.
Int J Psychophysiol. 1996 Apr-May;22(1-2):123-8. doi: 10.1016/0167-8760(96)00006-2.
The speed hypothesis of intelligence was tested in relation to median nerve conduction velocity (NCV) in right-handed subjects. In total, NCV did not significantly correlate with IQ (Cattell's Culture Fair Intelligence test). The motor and sensory median NCVs correlated with IQ positively linearly in men and negatively linearly in women. These results supported the general, unqualified speed hypothesis of intelligence only for men. It was concluded that the conduction speed of the input-output channels of brain as an information processing unit may differentially contribute to nonverbal intelligence, depending upon sex. The male hormone, testosterone, was suggested to be the main factor responsible for sex-related differences in the IQ-NCV relationships.
在右利手受试者中，针对智力的速度假说与正中神经传导速度（NCV）进行了测试。总体而言，正中神经传导速度与智商（卡特尔文化公平智力测验）无显著相关性。男性的运动和感觉正中神经传导速度与智商呈正线性相关，而女性则呈负线性相关。这些结果仅支持男性的一般性、无限制的智力速度假说。研究得出结论，作为信息处理单元的大脑输入 - 输出通道的传导速度可能因性别而异，对非言语智力有不同贡献。雄性激素睾酮被认为是智商与正中神经传导速度关系中性别差异的主要因素。
