Fitts' Law With An Average of Two or Less Submoves?

ABSTRACT A number of researchers have noted that, with as few as 2 submovements (primary and corrective), the movement time versus index of difficulty (ID) data are described by Fitts' law, that is, there is a linear relationship between movement time (MT) and ID. A model is presented that shows that there may be an apparent relationship of this form between MT and ID with only 2 submovements. The model is based on the characteristics of ballistic movements and the required corrections to the endpoint of the primary submovement. The model shows the close relationship between the ballistic distance-covering phase of a movement and the consequent Fitts' law. The model is tested against several data sets and found to give a good description of the aiming process.

[1]  M. Posner,et al.  Processing of visual feedback in rapid movements. , 1968, Journal of experimental psychology.

[2]  R J Jagacinski,et al.  Quantifying the performance limitations of older and younger adults in a target acquisition task. , 1997, Journal of experimental psychology. Human perception and performance.

[3]  Ray F. Lin,et al.  The use of ballistic movement as an additional method to assess performance of computer mice , 2015 .

[4]  E. Hoffmann,et al.  Geometrical conditions for ballistic and visually controlled movements. , 1988, Ergonomics.

[5]  Jiajia Yang,et al.  Fitts' law holds for pointing movements under conditions of restricted visual feedback. , 2010, Human movement science.

[6]  H. Zelaznik,et al.  Motor-output variability: a theory for the accuracy of rapid motor acts. , 1979, Psychological review.

[7]  N Walker,et al.  Spatial and Temporal Characteristics of Rapid Cursor-Positioning Movements with Electromechanical Mice in Human-Computer Interaction , 1993, Human factors.

[8]  L. Carlton,et al.  Movement control characteristics of aiming responses. , 1980, Ergonomics.

[9]  Lorraine G. Kisselburgh,et al.  The effects of movement distance and movement time on visual feedback processing in aimed hand movements. , 1987, Acta psychologica.

[10]  S. Tsang,et al.  Bimanual and Unimanual Convergent Goal-Directed Movement Times , 2015, Journal of motor behavior.

[11]  E. R. Crossman,et al.  Feedback Control of Hand-Movement and Fitts' Law , 1983, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[12]  Daniel W. Repperger,et al.  Fitts' law and the microstructure of rapid discrete movements. , 1980 .

[13]  Eileen Kowler,et al.  Fitts’s Law and speed/accuracy trade-offs during sequences of saccades: Implications for strategies of saccadic planning , 2010, Vision Research.

[14]  Colin G Drury,et al.  Verification of models for ballistic movement time and endpoint variability , 2013, Ergonomics.

[15]  Colin Drury,et al.  Modeling Fitts' law , 2010 .

[16]  Ray F. Lin,et al.  Measuring individual corrective reaction time using the intermittent illumination model , 2014, Ergonomics.

[17]  P. Fitts.  The information capacity of the human motor system in controlling the amplitude of movement. , 1954, Journal of experimental psychology.

[18]  P. Fitts,et al.  INFORMATION CAPACITY OF DISCRETE MOTOR RESPONSES. , 1964, Journal of experimental psychology.

[19]  C. I. Howarth,et al.  The Movement of the Hand towards a Target , 1972, The Quarterly journal of experimental psychology.

[20]  R A Abrams,et al.  Optimality in human motor performance: ideal control of rapid aimed movements. , 1988, Psychological review.

[21]  Steven W. Keele,et al.  Movement control in skilled motor performance. , 1968 .

[22]  Scott T. Grafton,et al.  Updating target location at the end of an orienting saccade affects the characteristics of simple point-to-point movements. , 2005, Journal of experimental psychology. Human perception and performance.

[23]  Howard N. Zelaznik,et al.  Role of temporal and spatial precision in determining the nature of the speed-accuracy trade-off in aimed-hand movements , 1988 .

[24]  Viktor Jirsa,et al.  Is Fitts’ Law Continuous in Discrete Aiming? , 2012, PloS one.