题目：Combination and inhibitory processes in binocular vision

主讲人：韩超博士 俄亥俄州立大学

时间：2019年12月19日（周四）16:00-17:00

地点：心理学院301会议室

Binocular vision is the ability of using two eyes with overlapping field of view, to create a single 3D visual image. It gives a creature precise depth perception (stereopsis) and enhanced sensitivity (binocular summation). There are two distinct binocular functional processes to maintain the singleness of vision. The binocular combination/summation process integrates similar features from the two eyes, and the binocular inhibitory process suppresses conflicting signals or falsely matched images. Having an intrinsic interocular imbalance with one or both processes can cause sensory eye dominance (SED). In the first part of this talk, I'll introduce our recent finding that SED measured through binocular combination process and binocular inhibition process are strongly correlated, which suggest a common origin for interocular imbalance in these two different processes. Imbalance of both processes impair subjects' depth perception. Earlier work in our group showed that, perceptual learning of the binocular inhibition process alone can improve the depth perception of human patients with amblyopia or large SED. In the second part of this talk, I'll present my previous optical imaging results in the primary visual cortex (V1) of anesthetized monkeys, to show how the perceptual learning paradigm may affect animals' cortex. All together, our findings emphasized the importance of early binocular inhibitory process on functional binocular vision.

报告人简介：韩超，俄亥俄州立大学视光学院博士后。本科毕业于中国农业大学理科试验班（生命科学），博士毕业于中科院上海生命科学研究院神经科学研究所。博士期间主要在清醒和麻醉的恒河猴上，利用光学成像技术，研究初级视皮层双眼视觉相关的神经机制。博士后期间主要利用心理物理学方法，研究双眼视觉机制、弱视病人双眼视觉的恢复治疗、中级视觉感知等。相关研究发表在Journal of Neuroscience（2016），Investigative Ophthalmology & Visual Science（2018，2019）等领域专业期刊上，并获批一项眼科相关专利（US2018）。韩超博士曾获多项学校奖学金，以及SFN美国神经科学年会Travel Award，目前还是多个国际学术期刊的审稿人。