Deconstructing the tower of London: Alternative moves and conflict resolution as predictors of task performance

Hassina P. Carder*, Simon J. Handley, Timothy J. Perfect

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

22 Citations (Scopus)

Abstract

Despite widespread use the cognitive demands of the five-disc Tower of London (TOL) are unknown. Research suggests that conflict moves (those that are essential to the solution but do not place a disc in its final position) are a key aspect of performance. These were examined in three studies via a verification paradigm, in which normal participants were asked to decide whether a demonstrated move was correct. Experiment 1 showed that individual move latencies increase with the number of intermediate moves until the disc is placed in its goal position (resolution). Post hoc tests suggested that the number of alternative moves and moves to resolve a disc were independent predictors of performance. Experiment 2 successfully manipulated these factors in an experimental design. Experiment 3 showed that they remain determinants of performance as familiarity increased. Overall, errors on the task were significantly correlated with spatial memory. The implications of these findings for the use of the TOL in cognitive psychology and as an assessment tool are discussed.

Original languageEnglish
Pages (from-to)1459-1483
Number of pages25
JournalQuarterly Journal of Experimental Psychology Section A: Human Experimental Psychology
Volume57
Issue number8
DOIs
Publication statusPublished - Nov 2004
Externally publishedYes

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