Two experiments were carried out to determine the relative efficacy of visual search with horizontal and vertical lists of letters. Exp. 1 showed that visual search was faster with horizontally presented material. In Exp. 2 this finding was analyzed further. The factors of list orientation and letter orientation affected search times but the actual letter-to-letter relationship within a list was unimportant. Results were discussed briefly in terms of their relevance to studies of discrimination.
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References
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NeisserU.Experiments in visual search and their theoretical implications. Paper presented at Psychonomics Society, October, 1964.
