Intermittent Viewing in a Study of Visual Prediction

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Abstract
43 undergraduates made predictions of the point of coincidence of 2 pointers rotating at different rates, the trailing one closing on the leading one in the speed ratio of 3:2. During the viewing period, prior to prediction, pointer rotation was displayed intermittently, with variations in the display to no-display ratio. Results did not support the hypothesis that intermittent displays would produce more accurate predictions than a continuous display, as a consequence of the greater apparent opportunity for feedback provided by the intermittent displays. Intermittent displays resulted in magnitude of error similar to that produced by a continuous display. Ss' tendencies to over- or underestimate the point of coincidence appeared to be related to their estimates of the relative rates of travel by the two pointers. This suggested that the large consistent errors made by many Ss might be due to a generalized, and often erroneous, assumption concerning the rate of gain of the one pointer on the other

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