Building higher-order units in tachistoscopic identification: A test of two models |
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Authors: | Peter Wolff D J K Mewhort |
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Institution: | (1) Centre for Interdisciplinary Research, University of Bielefeld, Wellenberg 1, D-4800 Bielefeld, FRG;(2) Department of Psychology, Queen's University at Kingston, K7L 3N6 Kingston, Ontario, Canada |
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Abstract: | Summary Subjects were shown eight-letter pseudowords tachistoscopically and were asked to report as many letters as possible. The pseudowords, examples of either first- or fourth-order approximation to English, were printed in normal or reversed spelling and were presented in either normal of mirror-imaged letters. Finally subjects were either free to report in any order they wished, or they were instructed to report from left to right or from right to left. With normal letters, the familiarity effect was controlled by the spelling direction, not by the direction of report or the match between direction of report and spelling direction. With mirrored letters, however, order of approximation to English had no effect. The results contradict two existing theories: Mewhort's theory claims that the familiarity of fourth-order materials aids processing at a postcategorical level; it has trouble explaining why the familiarity effect disappeared with mirrored letters and normal spelling. Wolff's theory claims that familiarity aids processing at the feature level; it has trouble explaining why the familiarity effect disappeared with mirrored letters and reversed spelling. |
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