Coding strategy for memory of movement extent information

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Examined the coding and retention characteristics of movement extent information; a total of 60 Ss were used in 4 experiments. Exp I investigated the role of location cues for reproduction of extent through systematic variation of reliable location information. Results suggest that when available, Ss used a location strategy to code extent. As location cues became unreliable, however, the incidence of counting on the part of the Ss increased. This counting strategy allowed the coding of movement extent in terms of movement time. Exps II and III examined the use of this counting strategy and determined that Ss were, in fact, able to employ this strategy to accurately retain rate (movement time) information. Exp IV compared memory for extent based on the movement time or counting strategy as opposed to the location strategy. Although both strategies were effective in coding of extent information, memory based on the location strategy placed demand on processing capacity while memory based on the counting strategy did not. The importance of these results with regard to the notion of coding flexibility is discussed. (15 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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