2008年6月24日,星期二

布罗卡's area is not part of the human 镜子 system

这是Morin和Grezes进行的有趣且深思熟虑的评论得出的结论(2008,临床神经生理学,38:189-195). The basic observation is that the response of BA 44 (the posterior portion of 布罗卡's area) does not discriminate between goal-directed and non-goal-directed actions, whereas BA 6 (a more posterior pre-motor site) does, responding more reliably across studies to goal-directed action. As macaque 镜子 neurons only respond goal-directed actions, this makes BA 6 the more likely candidate for the human homologue of monkey F5.

Of course the recent discovery of 镜子 neurons in monkey primary motor cortex (Tkach D等。 2007年,在运动皮层的动作和动作观察中保持一致的活动。神经科学杂志27:13241-13250。),将猴子扳手投入整个镜像神经元企业。在最初的报道中,没有在M1中找到镜像神经元,这被合理地认为是反对猴子在感知动作过程中暗中产生运动反应的证据。换句话说,它排除了“mirror” responses were merely some kind of unimplemented motor reflex. This important "control" opened the door to a more interesting higher-level, function for 镜子 neurons. Now with the demonstration of “mirror”在低级电机电路中的响应,则完全有可能“mirror”反应无非是反射性感觉运动联想。

没意见: