Abstract
A time-course analysis of visual attention focusing (attentional constraint) was conducted in groups of participants with high and low working memory spans, a dimension the authors have argued reflects the ability to control attention. In 4 experiments, participants performed the Eriksen flanker paradigm under increasing levels of speed stress. Conditional accuracy functions were derived to measure the time course of attentional constraint. The data showed that accuracy rates rose toward asymptote at different rates, with participants with high working memory spans reaching peak performance before participants with low working memory spans. The authors interpret these data in terms of a rate of attention constraint model.
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