作者
Taylor Hayes, Per Sederberg, Alexander Petrov
发表日期
2011/9/1
期刊
Journal of Vision
卷号
11
期号
11
页码范围
501-501
出版商
The Association for Research in Vision and Ophthalmology
简介
Eye movement patterns contain important information about the underlying perceptual and cognitive mechanisms. Traditional area of interest (AOI) measures such as fixation count, fixation duration, scan-path length, and spatial density ignore either the spatial or the temporal aspects of fixation sequences. The transition-probability matrix contains both spatial and sequential information, but it only quantifies pairs of transitions and ignores properties of temporally-extended sequences. Here we describe a new method that captures the statistical regularities in longer sequences using successor representations (SRs, Dayan, 1993, Neural Computation). Whereas, each cell of a traditional transition matrix represents the frequency of making a single saccade from one AOI to another, the SR uses temporal difference learning to incrementally strengthen the weights of multiple cells based on both recent and predicted …
学术搜索中的文章
T Hayes, P Sederberg, A Petrov - Journal of Vision, 2011