光点位移运动激发的瞬态瞳孔反应  

TRANSIENT PUPILARY RESPONSES ELICITED BY DISPLACEMENT OFTHE LIGHT SPOT STIMULUS

作　　者：孙复川[1] 陈凌育[1] 赵信珍[1] 

机构地区：[1]中国科学院上海生理所,中国科学院北京生物物理研究所视觉信息加工开放实验室,中国科学院上海生命研究中心

出　　处：《生物物理学报》1995年第3期373-378,共6页Acta Biophysica Sinica

基　　金：国家自然科学基金

摘　　要：用等亮度的光点位移运动作为刺激来测量瞳孔反应，实验记录表明，即使输入到视网膜的总光通量不变，仅仅是刺激光点的位置改变就能激发起瞳孔反应，且其反应的位置分辨率可达１０’。这一实检结果揭示了瞳孔对光反射通路不仅传递了进入瞳孔的总光通量的信息，而且还检测了刺激光点位置变化的信息．In present investigation, pupillary asponse to stimulus, Which was only the position shift o f a light spot in the visual field with she and ludriance kept constant, have been measured. The experimental data shoWed that transient pupillary constriction were evoked by the displacement of stimulus. The evolution of the displaCement detedion could reach to 10 minutes of arc. The restilts indicated that the signal sent to pupillomotor nucleus not only contained the information of integral ludriance for visual input, hilt also catried a ceratin space-temporal features of the stimulus.

关 键 词：生物信息论 瞬态瞳孔反应 瞳孔控制系统 

分 类 号：Q811.4[生物学—生物工程]