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Boundary distance effects on overshooting.

L Buck1

  • 1a National Research Council Ottawa , Canada.

Journal of Motor Behavior
|August 20, 2013
PubMed
Summary
This summary is machine-generated.

Overshoot rate in pursuit tracking depends on target-boundary distance, not target distance itself. This finding supports a ballistic movement hypothesis for pursuit responses.

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Area of Science:

  • Human-Computer Interaction
  • Motor Control
  • Cognitive Psychology

Background:

  • Previous research suggested an inverse relationship between target distance and overshoot rate in pursuit tracking.
  • This relationship was noted to be artifactual under certain experimental conditions.

Purpose of the Study:

  • To investigate the primary determinant of overshoot rate in subject-paced pursuit tracking.
  • To re-evaluate the relationship between target distance and overshoot rate.
  • To test the hypothesis that pursuit responses involve ballistic movements.

Main Methods:

  • Subject-paced pursuit tracking task employed.
  • Overshoot rate measured in relation to target-boundary distance and target distance.
  • Experiments conducted with direct and reverse control-display relations.
  • Tasks included both constant and variable target distances.

Main Results:

  • Overshoot rate was found to be dependent on the distance between the target and the display boundary in the direction of movement.
  • A previously observed inverse relationship with target distance was identified as artifactual.
  • Findings were consistent across different control-display relations and target distances.

Conclusions:

  • The distance to the display boundary, not the target itself, is the critical factor influencing overshoot rate.
  • Results support Wetford's hypothesis of a ballistic, distance-covering initial movement in pursuit responses.
  • Understanding these factors is crucial for designing effective tracking interfaces and understanding motor control.