MAGIC (Microcomputer Applications of Graphics and Interactive Communications) 1: A Study of Manual versus Vocal Control under Heavy Task Loading,
AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH
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The Microcomputer Applications of Graphics and Interactive Communications study, Phase I MAGIC 1 was designed to compare the effectiveness of a voice activated control system with that of a multifunction control panel utilizing a branching control logic under conditions of heavy manual-visual task loading. Eighteen Air Force personnel were asked to perform fourteen different aircraft subsystem control tasks using each of the control modes while simultaneously performing a complex loading task. Results showed simultaneously performing a complex loading task. Results showed that the subjects demonstrated significantly better performance on three of the five dependent variables when using the voice system, indicating that they were better able to maintain concentration on the loading task with this mode. Analysis of subjective data showed an overwhelming subject preference for the voice control mode.