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Spatial clustering and hierarchical coding in immediate serial recall

By Carlo De Lillo and Valerie E. Lesk


This article was published as European Journal of Cognitive Psychology, Vol. 22, Issue 2, March 2010, pp. 216-246. It is available from:\ud only entryFour experiments are reported that demonstrate the benefits of clustering by spatial proximity in spatial serial recall and provide support for the notion that hierarchical coding underpins the retention of clustered sequences in spatial working memory. Sequences segregated by spatial clusters increased serial recall performance at different levels of sequence length in a variation of the Corsi test and produced a faster initial response time (RT), which indicates that they afforded data reducing processes. RT at cluster boundary increased in parallel with the number of items forming the clusters, suggesting that subroutines of different length were responsible for the ordering of items within clusters of different size. Evidence for hierarchical coding was also obtained in a serial recognition task, indicating this type of representation pertains to the retention of the sequences rather than exclusively to the organisation of the motor plan for the reproduction of the sequences

Publisher: Psychology Press
Year: 2010
DOI identifier: 10.1080/09541440902757918
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