Fitts' law holds for pointing movements under conditions of restricted visual feedback

Jinglong Wu, Jiajia Yang, Taichi Honda

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Fitts' law robustly predicts the time required to move rapidly to a target. However, it is unclear whether Fitts' law holds for visually guided actions under visually restricted conditions. We tested whether Fitts' law applies under various conditions of visual restriction and compared pointing movements in each condition. Ten healthy participants performed four pointing movement tasks under different visual feedback conditions, including full-vision (FV), no-hand-movement (NM), no-target-location (NT), and no-vision (NV) feedback conditions. The movement times (MTs) for each task exhibited highly linear relationships with the index of difficulty (r2> 96). These findings suggest that pointing movements follow Fitts' law even when visual feedback is restricted or absent. However, the MTs and accuracy of pointing movements decreased for difficult tasks involving visual restriction.

Original languageEnglish
Pages (from-to)882-892
Number of pages11
JournalHuman Movement Science
Volume29
Issue number6
DOIs
Publication statusPublished - Dec 2010

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Keywords

  • Fitts' law
  • Motor control
  • Movement time
  • Pointing movement
  • Visual restriction

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Biophysics
  • Experimental and Cognitive Psychology

Cite this

Fitts' law holds for pointing movements under conditions of restricted visual feedback. / Wu, Jinglong; Yang, Jiajia; Honda, Taichi.

In: Human Movement Science, Vol. 29, No. 6, 12.2010, p. 882-892.

Research output: Contribution to journalArticle

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