Lab 3 - KIN 315 Motor Learning Fall 2009 Name Lab 3 Speed...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
KIN 315 Motor Learning Fall 2009 Name Lab 3 Speed and Accuracy Purpose : To examine the relation between the time to make rapid arm movements and the difficulty of the task. This relation is expressed formally as Fitts' Law, in which task difficulty is defined in terms of the distance to move and the accuracy demands at the movement. Fitts' Law has been shown to generalize to a variety of physical activity and ergonomic situations where speed and accuracy play important roles. Task and Equipment Needed The task is to tap repeatedly as fast as possible between two targets, trying to hit each target every time. Equipment: interval timers impulse counters styli tapping targets 3 cm and 8 cm in diameter, 22 cm and 36 cm apart Procedures The purpose of the lab is to assess how movement time (MT) is affected by the difficulty of tasks. Fitts defined task difficulty in terms of target size (W, which is the width of the target) and the distance to move (D, which is the distance between targets). He quantified task difficulty (which he called "index of difficulty," or ID) by using the following equation: ID = log 2 (2D/W) For this lab, three combinations of task difficulty will be used. The easiest task has D = 36 cm
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/02/2009 for the course KIN 315 taught by Professor Abraham during the Spring '08 term at University of Texas.

Page1 / 3

Lab 3 - KIN 315 Motor Learning Fall 2009 Name Lab 3 Speed...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online