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Processing differences between memory search and foveal visual search.

A. Chiang and R. C. Atkinson (see record 1977-11963-001), in an investigation of individual differences and interrelationships between memory search and visual search, found no differences between the slope for memory search and that for visual search. Results of the present study with 4 male graduate students suggest that at least 2 processes are reflected in the visual search slope: one that covaries with slope related processes in the memory task and one that does not. Data are interpreted as revealing 2 major differences between memory and visual search: (a) The visual search slope reflects a significant encoding component that is not present in the memory search slope. (b) The variation of comparison stage duration with list length must have different sources in the 2 tasks. Explanations of the differences between the present results and those of Chiang and Atkinson are offered. (PsycINFO Database Record (c) 2007 APA, all rights reserved)



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