基于beat时间信息加工的非听觉特异性认知神经机制研究

时间是我们存在的一个基本维度；时间上周期性的beat使时间信息得以参照可预期的时间点进行组织加工。基于beat时间信息加工是时间信息得以精确有效处理的核心机制，对于理解人类大脑的功能及进化有深刻的意义。根据基于beat时间信息加工中听觉相对于视觉的优势所提出的传统听觉特异性假说，受到了近期包括申请人课题组视觉研究进展的质疑。根据这些进展以及进一步预实验的发现，申请人在本项目中提出非听觉特异性假说，并拟以视觉研究为突破点，通过行为学和脑影像学(EEG和fMRI)方法，阐明基于beat时间信息加工的非听觉特异性机制。本项目的研究将推动当前基于beat时间信息加工研究领域包括理论假设和研究方法的进展，有助于进一步深入认识基于beat时间信息加工的认知神经机制。

Time is a fundamental dimension of our existence; and the periodic beat enables temporal information to be organized and processed according to expected points in time. Beat-based temporal processing is an essential mechanism underlying precise and effective processing of temporal information, having important significance for understanding the function and evolution of the brain. The traditional auditory-specific hypothesis that was proposed based on the auditory over visual advantage in beat-based temporal processing, has been challenged by recent vision research progresses including the work from the lab of the applicant. Based on these progresses and further findings from pre-experiments, in the present project the applicant proposes the non-auditory-specific hypothesis, and plans to take vision research as the breakthrough point, use behavioral and brain-imaging (EEG and fMRI) approaches, to elucidate non-auditory-specific mechanisms of beat-based timing processing. The research of this project will advance current research of beat-based timing processing in terms of both theoretical construction and methodological development, and has important implications for a better understanding of cognitive and neural mechanisms of beat-based temporal processing.