A comparison of two control-display gain measures for head-controlled computer input devices

• Published in: Human factors Vol. 38; no. 3; p. 390
• Main Authors: Schaab, J A, Radwin, R G, Vanderheiden, G C, Hansen, P K
• Format: Journal Article
• Language: English
• Published: United States 01.09.1996
• Subjects: Adult; Ergonomics - instrumentation; Female; Head Movements - physiology; Humans; Least-Squares Analysis; Linear Models; Male; Self-Help Devices; User-Computer Interface

We compared two gain measures: One, defined as angle/angle (A/A) gain, is the ratio between the angle subtended by displacement of the cursor and the corresponding angle of head extension/flexion or rotation. The alternative measure, defined as displacement/angle (D/A) gain, is the ratio between the...