EXSS2025 Lecture Notes - Lecture 12: Binary Logarithm, Handedness

• School: University of Sydney
• Department: Exercise and Sport Science
• Course: EXSS2025
• Professor: Ross Sanders

Document Summary

When speed is a priority, accuracy is not prioritized - information processing not ideal. When accuracy is prioritized, speed is decreased. Greater distance moved (amplitude) = increased time. How much decision making or information processing. Id increases when distance is fixed and target width is decrease (target makes it more difficult) Task is made more difficult by increasing amplitude (distance) or decreasing target width = more information must be processed to generate movement. A intercepts the slope where id is zero. B is the slope - eg. mt increase when id increases. Fingers = lower slope gradient (faster mt even with increasing id) Arms/wrists = higher slope gradient = speed loss with increasing id. Likely due to larger representation in brain area = precision. Occurs for movements that are spatially and temporally constrained (distance but with controlled speed) Occurs for movements that are spatially constrained (distance then accuracy emphasized) Micro adjustments made during movement to track/scan target.