A comparison was made between two measures of visual functioning in a dynamic context that required the resolution of moving targets. Performance obtained on a traditional task of dynamic visual acuity, which involves the determination of the smallest target that can be resolved at a given target velocity, was compared with that obtained with an alternative task that essentially reverses the independent and dependent variables. Generally similar patterns of results were obtained across the two procedures, but the alternative procedure appears to offer several advantages such as greater ease of administration, improved precision of measurement, and more-direct assessment of underlying channel activity. The recommended use of the new procedure in future work involving dynamic acuity as well as particular variables that should be carefully controlled in such work (eg target duration and target size) are discussed.
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