上丘-丘脑枕结节-杏仁核视觉皮层下通路及其生物学意义  

Superior colliculus-pulvinar-amygdala subcortical visual pathway and its biological significance

作　　者：王磊 杨丽川[2] 孟千力 马原野 

机构地区：[1]云南省药物研究所GLP中心,昆明650111 [2]中国科学院昆明动物研究所灵长类认知实验室,昆明650223 [3]中国科学院生物物理研究所脑与认知国家重点实验室,北京100101

出　　处：《生理学报》2018年第1期79-84,共6页Acta Physiologica Sinica

基　　金：supported by the National Basic Research Development Program of China (No. 2005CB522801; 2012CB825500)

摘　　要：上丘-丘脑枕结节-杏仁核通路是哺乳动物脑内的视觉皮层下通路之一。近来的研究提示这条通路和情绪相关的视觉信息处理有关。本综述提出这条通路可能更多地涉及到个体的警戒而不是简单的早期视觉信息处理,并且讨论了其生物学意义。在早期视觉过程中,大脑检测的不是"空间位置",也不是"是什么物体",而是警告大脑的信号:"有情况出现!",使大脑进入一种警戒状态。这种警戒状态对物种生存至关重要。因此,我们认为在视觉早期,对物体"出现"和"消失"的检测较之"质地"和"形状"等特征信息收集等更为重要。拓扑知觉和皮层下通路的存在可能就是机体视觉警戒的神经基础。"警戒"可能正是皮层下通路存在的生物学意义之一。Superior colliculus-pulvinar-amygdala pathway is one of the subcortical visual pathways in mammalian brain. Some recent studies suggest that this pathway is involved in processing emotion-related visual information. This review discusses the possibility that this pathway is more related to visual alert rather than simply the early visual information processing. The biological significance of this pathway is also discussed. Instead of detecting ＂where＂ or ＂what＂ the visual target is, the task of this early visual stage is to send out a warning signal, i.e., ＂something appears＂, so that the brain can be set up in a state of alert, which is important for the survival of animals. Thus, in the early visual information process, detection of new object ＂emerging＂ or ＂disappearing＂ takes priority over the acquisition of its feature information of＂texture＂ and ＂shape＂, etc. The subcortical pathway may provide the neural basis of early visual warning in topological perception, a biological significance critical for animal survival.

关 键 词：脑 早期视知觉 皮层下通路 意识 情绪 

分 类 号：R339.14[医药卫生—人体生理学]