Yang Fang

Main Lab Location:

CiNet (Main bldg.)

Specific Research Topic:

Disparity processing in primary visual cortex

Mailing Address:

2B2 1-4 Yamadaoka, Suita, Osaka


fang at

My research focused on the binocular disparity processing mechanism. I’m interested in how our visual system detects and gathers disparity information from visual field to build a vivid 3D perception. By presenting disparity visual stimuli (drifting random dots or gratings) and recording blood-oxygen level changes in visual cortex of animals (with intrinsic signal optical imaging techniques), we have been able to get insights into the functional organization and the response properties of disparity neurons from different visual areas, and have a better understanding about the disparity processing hierarchy.
Specially I designed visual stimuli of edges defined by binocular disparity and presented them to awake and anesthetized macaque monkeys. I demonstrated an orientation-selective map to these disparity-defined edges in area V4, but not in V1 or V2. The results indicate that V4 plays an important role in cue-invariant contour integration, which is essential for figure recognition function in the ventral visual pathway.
Recently, I’m performing two-photon imaging on macaque monkeys. I plan to combine two-photon imaging and intrinsic signal optical imaging together to explore the disparity response micro-structure of visual cortex.

Selected Publications:

Fang, Y., Chen, M., Xu, H., Li, P., Han, C., Hu, J., Zhu, S., Ma, H., and Lu, H.D. (2018). An Orientation Map for Disparity-Defined Edges in Area V4. Cerebral cortex.