视杆细胞 视锥细胞 +8 hen 器 r fovea. ation,v 88网 口分布于外周视野 ▣分布于中央视野 口对弱光敏感（夜晚订 口对强光敏感（白天) 口分辨物体的明喷和轮廓 ▣分辨物体的细节和颜色
视杆细胞 视锥细胞 分布于外周视野 对弱光敏感（夜晚） 分辨物体的明暗和轮廓 分布于中央视野 对强光敏感（白天） 南医大王优爱课资料 分辨物体的细节和颜色
试一试 、月朗星稀的晚上，如果你越盯着星星看， 会发现越 看不到，为什么？
月朗星稀的晚上，如果你越盯着星星看，会发现越 看不到，为什么？ 南医大王优爱课资料
对侧投射 Contralateral Right visual field projections Left visual field 右视野 左视野 料 鼻侧父 Temporal 颗侧视神经 Temporal 视交叉 tic chiasm 优 枕核 Pulvinar nucleus Lateral geniculate 外侧膝状体 nucleus 上丘 Superior colliculus 视辐射 Optic radiation Primary visual cortex 初级视皮层V1
左视野 右视野 颞侧视神经 鼻侧 视交叉 外侧膝状体 上丘 视辐射 枕核 初级视皮层V1 对侧投射 Contralateral projections 南医大王优爱课资料
1.视网膜-膝状体通路(90%) 2.视网膜-上丘/枕核通路（10%) dorsal tream 五级视皮层人 三级视皮层 外侧膝状体 LGN pulvinar V2 次级视皮层 枕核 V1 retina amygdala 北丘 四级视皮层 初级视皮层 视网膜 ventral stream Urbanski et al.,2014,Frontier in intergrative neuroscience FIGURE 1|Schematic diagram of the human visual/system.The main bypassing both V1 and the LGN.This pathway has been accounted to connections originating in the retina are d in thick arrows.They mediate action blindsight.Another colliculo-pulvinar pathway,associated with synapse in the lateral geniculate nucleus project to the primary the ventral visual stream,synapses in the LGN and projects to extrastriate visual cortex (V1).V1 sent information to the extrastriate areas (V2,V3,V4 areas (in particular area V4)bypassing V1.This pathway has been accounted and MT+/5).Most of the corticocortical (in blue)and subcortico-cortical (in to mediate color and shape residual discrimination.Other collicular pathways orange)connections are reciprocal but are not represented for clarity of the are represented:the colliculo-pulvinar pathway (between SC and pulvinar), schema.Alternative pathways are represented in thin arrows.The the pulvino-amygdalar pathway (between the pulvinar and amygdala)and the extrageniculostriate pathway belonging to the dorsal visual stream,originates colliculo-pulvino-amygdalar pathway (between the SC,the pulvinar and the in the retina and synapses in the superior colliculus(SC)and in the pulvinar amygdala).These pathways have been accounted to mediate affective and projects directly to extrastriate areas(in particular area MT+N5) blindsight
Urbanski et al., 2014, Frontier in intergrative neuroscience 视网膜 上丘 外侧膝状体 枕核 初级视皮层 次级视皮层 三级视皮层 四级视皮层 五级视皮层 1. 视网膜-膝状体通路（90%） 2. 视网膜-上丘/枕核通路（10%） 南医大王优爱课资料
视网膜拓扑组织(retinotopic maps) 外在空间上相邻的视野表征在视觉皮层相邻的区域 Pass your To where in V1 does the LGN project? mouse over 爱协 the eye's view to see where it is represented in V1 V1 Medial view of the left cortex after unfolding the sulci
视网膜拓扑组织（retinotopic maps） 外在空间上相邻的视野表征在视觉皮层相邻的区域 南医大王优爱课资料