Investigations of the threshold for dark interval and backward masking have indicated that duration of the visual sensory trace is inversely related to MA. Based on these findings, it was predicted that lower MA Ss would fuse temporally separated halves of segmented figures at longer ISIs than higher MA Ss. Ten pairs of visual stimuli were exposed tachistoscopically so that each half of a pair would appear as meaningless segmented lines but, when fused, would be perceived as a drawing of an animal. Failure to confirm the prediction was discussed in terms of the influence of cognition on sensory threshold experiments.
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