错觉轮廓知觉神经机制的研究

物体识别是认知科学的一个核心课题。环境中的信息往往是不完整的，但视觉系统仍然可以识别物体。这种视觉补充现象的经典例子是错觉轮廓知觉: 虽然轮廓信息是不完整的，但是完整的轮廓被知觉到。本项目拟采用多个实验手段(行为学，功能磁共振成像，和脑电)，设计多个实验范式(比较轮廓补充和轮廓表征，比较错觉轮廓和真实轮廓，比较任务相关注意和空间注意，比较轮廓和表面，与比较Kanizsa类型和光栅移位类型错觉轮廓)，来研究错觉轮廓知觉的神经机制。这些研究结果，将有助于进一步了解错觉轮廓知觉的神经基础，对于错觉轮廓知觉以及物体识别的研究，有重要的理论和方法上的意义。

Object recognition is a central topic of cognitive science. Object recognition occurs even when environmental information is incomplete. A classic example of such a visual completion phenomenon is the illusory contour (IC): a contour is perceived though the contour information is incomplete. The present project plans to use multiple experimental approaches (behavioral, fMRI, and EEG methods) and design multiple experimental paradigms (comparing contour completion and contour representation, comparing illusory and real contours, comparing task-relevant and spatial attention, comparing contours and surfaces, and comparing Kanizsa type IC and displaced-grating type IC), to investigate the neural mechanism of IC perception. The results would provide more insights into the neural basis of IC perception, having both theoretical and methodological significances，to the research of IC perception as well as object recognition.