Delay improves performance on a haptic spatial matching task

Sander Zuidhoek (Corresponding author), Astrid M.L. Kappers, Rob H.J. van der Lubbe, Albert Postma

Research output: Contribution to journalArticleAcademicpeer-review

72 Citations (Scopus)


Systematic deviations occur when blindfolded subjects set a test bar parallel to a reference bar in the horizontal plane using haptic information (Kappers and Koenderink 1999, Perception 28:781-795; Kappers 1999, Perception 28:1001-1012). These deviations are assumed to reflect the use of a combination of a biasing egocentric reference frame and an allocentric, more cognitive one (Kappers 2002, Acta Psychol 109:25-40). In two experiments, we have examined the effect of delay between the perception of a reference bar and the parallel setting of a test bar. In both experiments a 10-s delay improved performance. The improvement increased with a larger horizontal (left-right) distance between the bars. This improvement was interpreted as a shift from the egocentric towards the allocentric reference frame during the delay period.

Original languageEnglish
Pages (from-to)320-330
Number of pages11
JournalExperimental Brain Research
Issue number3
Publication statusPublished - 1 Jan 2003
Externally publishedYes


  • Delay
  • Frames of reference
  • Haptic perception
  • Parallelity
  • Spatial representation


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