Ono T, Nakamura K, Fukuda M, Tamura R
Department of Physiology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan.
Neurosci Lett. 1991 Jan 2;121(1-2):194-8. doi: 10.1016/0304-3940(91)90683-k.
Neuronal activity in the monkey hippocampus was recorded while the monkey sat in a rotatable cab which it could cause to move from one location to another by pressing bars, and while it was presented various visual stimulation from several horizontal directions (directional stimulation). Of 174 hippocampal neurons recorded, 20 were selective to direction of the stimulus without place relation. Responses of these neurons could be described in egocentric coordinates for some and allocentric coordinates for others. Seventy-seven neurons had place related activity (place related neurons). Of these place related neurons, 21 were also directionally selective with responses described in egocentric or allocentric coordinates or both. The results show close relations between the coding of environmental space cues in egocentric and allocentric coordinates, and place related activity in the primate hippocampus.
当猴子坐在一个可旋转的驾驶舱中时，记录其海马体中的神经元活动。猴子可以通过按压杠杆使驾驶舱从一个位置移动到另一个位置，同时会从几个水平方向向它呈现各种视觉刺激（定向刺激）。在记录的174个海马神经元中，有20个对刺激方向具有选择性，与位置无关。这些神经元的反应对于一些神经元可以用自我中心坐标来描述，而对于另一些神经元则可以用非自我中心坐标来描述。77个神经元具有与位置相关的活动（位置相关神经元）。在这些位置相关神经元中，有21个也具有方向选择性，其反应可以用自我中心坐标或非自我中心坐标或两者来描述。结果表明，在灵长类动物海马体中，自我中心和非自我中心坐标中环境空间线索的编码与位置相关活动之间存在密切关系。
