Investigating reading through the co-registration of eye movements and EEG
作者单位：Psychology University of Southampton
会议名称：《第二十届全国心理学学术会议--心理学与国民心理健康》
会议日期：2017年
学科分类：0402[教育学-心理学(可授教育学、理学学位）] 04[教育学] 040201[教育学-基础心理学]
关 键 词：reading scene perception EEG eye movement
摘 要：In this talk I will start by briefly discussing research in which I have used several different eye movement paradigms to investigate the visual and cognitive processes that occur during reading and scene perception. I will then move to some more recent work in which we have been using co-registration methods(simultaneous eye movement and EEG recordings) to investigate the neural correlates of visual, orthographic and lexical processes that occur during fixations in natural reading. Although I will discuss results from several such experiments, for brevity’s sake, here I present details of just one as an example. We manipulated two target words embedded in each experimental sentence for parafoveal preview and word frequency using the boundary paradigm. Before crossing the boundary, a preview of the identical target word, a string of letters, or a string of Xs was presented. After crossing the boundary, previews were replaced by the targets which were high or low frequency words. Eye movements were analysed for pre-target and target words and Fixation Related Potentials(FRPs) time-locked to fixation onsets of pre-target and target words were analysed within a time-window of 250 ms. Robust effects of frequency and preview occurred in the eye movement record, whilst FRP correlates occurred exclusively for the preview effects. I will discuss the findings from this and other experiments in relation to(1) visual and linguistic foveal and parafoveal processes that occur during fixations on words, and(2) what it means(theoretically) to obtain consistent, as well as inconsistent, effects across methods.