Zarei M, Stephenson J D
Neuroscience Program, IRI Academy of Medical Sciences, Tehran, Islamic Republic of Iran.
Neuroreport. 1996 Jan 31;7(2):647-51. doi: 10.1097/00001756-199601310-00064.
The activity of single neurones evoked by electrical stimulation of the paws was recorded from the central forepaw and hindpaw receptive fields of the primary somatosensory cortex (Sm1) in anaesthetized rats. In the forepaw receptive area (FRA), 44% of neurones showed pyramidal responses to stimulation of their central receptive fields (CRF) compared with 13% of neurones in the hindpaw receptive area (HRA). The neurones were located primarily in layers IV and V. A number of neurones in superficial layers of the hindpaw region, but not in the forepaw region, had either bilateral or exclusively ipsilateral receptive fields. It was concluded that neurones with bilateral hindpaw receptive fields form a separate population of neurones which are organized somatopically.
在麻醉大鼠的初级体感皮层（Sm1）的中央前爪和后爪感受野中，记录了电刺激爪子诱发的单个神经元的活动。在前爪感受区（FRA），44%的神经元对其中央感受野（CRF）的刺激表现出锥体反应，而后爪感受区（HRA）中这一比例为13%。这些神经元主要位于IV层和V层。后爪区域浅层有一些神经元具有双侧或仅同侧感受野，而前爪区域则没有。得出的结论是，具有双侧后爪感受野的神经元形成了一个按躯体定位组织的单独神经元群体。
