Calişkan S, Tan U
Atatürk University, Medical Faculty, Erzurum, Turkey.
Int J Neurosci. 1990 Aug;53(2-4):173-8. doi: 10.3109/00207459008986599.
The relationship between the degree of paw preference and the degree of excitability of motor neurons innervating the foreleg flexor muscles was studied in unanesthetized spinal cats. The paw preference was assessed by a food-reaching test. The cats were spinalized at the first cervical segment of the spinal cord. It was found that there is an inverse relationship between the degree of H-reflex excitability and the degree of paw preference in right- and left-preferent cats. This main result was discussed with respect to functional implications and evolution of human handedness.
在未麻醉的脊髓猫中研究了前肢偏好程度与支配前肢屈肌的运动神经元兴奋性程度之间的关系。通过食物抓取测试评估前肢偏好。猫在脊髓的第一颈段进行脊髓横断。结果发现，在右偏好和左偏好的猫中，H反射兴奋性程度与前肢偏好程度呈负相关。就人类利手的功能意义和进化对这一主要结果进行了讨论。
