A single-element impact in global/local processing: the roles of element centrality and diagnosticity |
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Authors: | David Navon |
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Institution: | (1) Department of Psychology, University of Haifa, Haifa, 31905, Israel |
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Abstract: | A modification of the compound stimuli paradigm has been used to measure the impact of a certain single element on the local-to-global
effect and to compare the measured impacts of central and non-central elements matched on diagnosticity. In addition to global
letters made of identical response-associated elements, some global letters comprised of only one response-associated element
at a specific location (with all other ones being response-neutral), and in some other global letters that critical element
was rather response-neutral (with all other ones being response-associated). Experiment 1 showed that the contribution of
a central element that served as a distinctive feature was as large as the joint contribution of all other elements. Experiment 2
(as well as Experiment 4) showed that, in contrast, a non-central element that served as a distinctive feature did not contribute
at all to the effect. Experiment 3 showed that the contribution of a central element was still as large as the joint contribution
of all other elements even when it was completely irrelevant for selecting the response. |
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Keywords: | |
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