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Perceptual influences on Fitts’ law

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Abstract

The linear relationship between movement time (MT) and index of difficulty (ID) for Fitts’ type tasks has proven ubiquitous over the last 50+ years. A reciprocal aiming task (IDs 3, 4.5, 6) was used to determine if an enlarged visual display (visual angle 5.1°, 7.4°, or 13.3°) would alter this relationship. With ID = 6, a condition typically associated with discrete action control, the largest visual display (13.3°) allowed the motor system to exploit features of cyclical action control, e.g., shorter dwell times, more harmonic motion, less time decelerating the limb. The large visual display resulted in a quadratic relationship between MT and ID. For the IDs of 3 and 4.5, the visual displays did not alter the underlying control processes. The results are discussed in terms of the preference of the motor system to assemble movements from harmonic basis functions when salient visual information is provided.

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References

  • Adam JJ, Paas FGWC (1996) Dwell time in reciprocal aiming tasks. Hum Mov Sci 15:1–24

    Article  Google Scholar 

  • Adam JJ, van der Bruggen DPW, Bekkering H (1993) The control of discrete and reciprocal target-aiming responses: evidence for the exploitation of mechanics. Hum Mov Sci 12:353–364

    Article  Google Scholar 

  • Adam JJ, Mol R, Pratt J, Fischer MH (2006) Moving further but faster: an exception to Fitts’s law. Pscyhol Sci 17:794–798

    Article  Google Scholar 

  • Buchanan JJ, Park JH, Ryu YU, Shea CH (2003) Discrete and cyclical units of action in a mixed target pair aiming task. Exp Brain Res 150:473–489

    PubMed  Google Scholar 

  • Buchanan JJ, Park JH, Shea CH (2004) Systematic scaling of target width: dynamics, planning, and feedback. Neurosci Lett 367:317–322

    Article  PubMed  CAS  Google Scholar 

  • Buchanan JJ, Park JH, Shea CH (2006) Target width scaling in a repetitive aiming task: switching between cyclical and discrete units of action. Exp Brain Res 175(4):710–725

    Google Scholar 

  • Crossman ERFW, Goodeve PJ (1983) Feedback control of hand-movement and Fitts’ law. Q J Exp Psychol 35A:251–278

    Google Scholar 

  • Fitts PM (1954) The information capacity of the human motor system in controlling the amplitude of movement. J Exp Psychol 47:381–391

    Article  PubMed  CAS  Google Scholar 

  • Fitts PM, Peterson JR (1964) Information capacity of discrete motor responses. J Exp Psychol 67:103–112

    Article  PubMed  CAS  Google Scholar 

  • Langolf GD, Chaffin DB, Foulke, JA. (1976). An investigation of Fitts’ law using a wide range of movement amplitudes. J Mot Behav 8:113–128

    Google Scholar 

  • Guiard Y (1993) On Fitts’s and Hooke’s laws: simple harmonic movement in upper-limb cyclical aiming. Acta Psychol 82:139–159

    Article  CAS  Google Scholar 

  • Guiard Y (1997) Fitts’ law in the discrete vs cyclical paradigm. Hum Mov Sci 16:97–131

    Article  Google Scholar 

  • Jirsa VK, Kelso JAS (2004) The excitator as a minimal model for the coordination dynamics of discrete and rhythmic movement generation. J Mot Behav 37:35–51

    Article  Google Scholar 

  • Kelso JAS (1992) Theoretical concepts and strategies for understanding perceptual-motor skill: from information capacity in closed systems to self-organization in open, nonequilibrium systems. J Exp Psychol Gen 121:260–262

    Article  PubMed  CAS  Google Scholar 

  • Mechsner F, Kerzel D, Knobllch G, Prinz W (2001) Perceptual basis of bimanual coordination. Nature 414:69–73

    Article  PubMed  CAS  Google Scholar 

  • Meyer DE, Kornblum S, Abrams RA, Wright CE, Smith JEK (1988) Optimality in human motor performance: Ideal control of rapid aimed movements. Psychol Rev 95:340–370

    Article  PubMed  CAS  Google Scholar 

  • Mottet D, Bootsma RJ (1999) The dynamics of goal-directed rhythmical aiming. Biol Cybern 80:235–245

    Article  PubMed  CAS  Google Scholar 

  • Mourik AM, Beek PJ (2004) Discrete and cyclical movements: unified dynamics or separate control. Acta Psychol 117:121–138

    Article  Google Scholar 

  • Plamondon R, Alimi AM (1997) Speed/accuracy trade-offs in target-directed movements. Behav Brain Sci 20:279–349

    PubMed  CAS  Google Scholar 

  • Schöner G (1990) A dynamic theory of coordination of discrete movement. Biol Cybern 63:257–270

    Article  PubMed  Google Scholar 

  • Smits-Engelsman BCM, Swinnen SP, Duysens J (2006) The advantage of cyclical over discrete movements remains evident following changes in load and amplitude. Neurosci Lett 396:28–32

    Article  PubMed  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Health and Kinesiology, Texas A&M University, College Station, TX, 77843-4243, USA

    A. J. Kovacs, J. J. Buchanan & C. H. Shea

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  1. A. J. Kovacs
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  2. J. J. Buchanan
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  3. C. H. Shea
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Correspondence to C. H. Shea.

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Kovacs, A.J., Buchanan, J.J. & Shea, C.H. Perceptual influences on Fitts’ law. Exp Brain Res 190, 99–103 (2008). https://doi.org/10.1007/s00221-008-1497-3

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  • DOI: https://doi.org/10.1007/s00221-008-1497-3

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