MOVESCI 320 Lecture 1: Lab 1 Module 3.docx
Document Summary
The purpose of this portion of the lab was to determine how movement distances and the need for end point accuracy affected the speed and duration of movement. This speed- accuracy trade-off in continuous movements is the basis for fitts"s law. This law states that movement time is a function of the index of difficulty. The index of difficulty means that the action becomes more difficult as the distance to the target increases. Also increasing the width of the target leads to a reduction of accuracy for the movement (eskenazi et al 2012). Based on this study, it was hypothesized that movement time will increase when the distance between targets increases as well as when the width of the target decreases. This experiment was performed by securing an electrogoniometer on the participants arm aligned with the midpoint of the cubital fossa to record the number of full cycle movements.
