Abstract
Controlled eye movements are critical in performing highly goal oriented behavior such as text reading. Previous studies have examined the relationship between working memory capacity and eye movement control during working memory task. However, the results were inconsistent, due to a methodological issue including the predictability of target location. In the present study, we used Japanese version of reading span test, where the position of to-be-remembered word is not predictable so that more efficient attentional control is required, and investigated how working memory capacity contributes to eye movement control during reading span test. Results based on total fixation time revealed that highworking memory performers efficiently control or shift their attention under high memory load.
Highlights
Controlled eye movements are critical in performing highly goal oriented behavior such as text reading
We used Japanese version of reading span test, where the position of to-be-remembered word is not predictable so that more efficient attentional control is required, and investigated how working memory capacity contributes to eye movement control during reading span test
By applying the two modifications to the Japanese version of Reading Span Test (RST), we examined whether individual differences in working memory capacity is related to efficiency of eye movement control
Summary
Remaining participants were divided into two groups (i.e., high- and low-performers) based on their RST score, which was measured prior to the experiment with the Japanese version of the RST (Osaka et al 1994). The mean span of the high-span group (HS) and the low-span group (LS) was 4.21 (3.5 – 5.0) and 2.56 (2.0 – 3.0), respectively. All participants gave their informed consent in accordance with the Department of Human Sciences, Osaka University. For the eye movement experiment, we employed another version of the RST, as participants had experienced the standard RST (Osaka et al, 1994) to measure their working memory span. The visual angle of each sentence was approximately 23 degrees
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