The Effects of Vocal versus Manual Response Modalities on Multi-Task Performance.

Abstract

The increasing complexity of display and control instrumentation in modern high performance aircraft has the potential to overload the human operator and result in diminished system performance. Interactive voice technology has been proposed as a method to reduce the high workload placed on the pilots of military aircraft. This report presents the results of an experiment designed to evaluate the effects on human performance of vocal versus manual response modalities on single and multiple tasks simulating some conditions of flight. Results indicated a significant increase in performance precision on a psychomotor task when a vocal, rather than a manual response mode was used on the simultaneous performance of multiple tasks. These results suggest that human performance on visually oriented multiple tasks requiring simultaneous execution may be improved if some of the work effort can be performed using a vocal input/output. Keywords: Workload; Vocal response; Multiple tasks.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1985
Accession Number
ADA159830

Entities

People

  • G. R. Griffin
  • J. D. Mosko

Organizations

  • Naval Aerospace Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Analysis Of Variance
  • Biomedical Research
  • Control Sticks
  • Flight
  • Flight Training
  • Instrumentation
  • Magnetic Tape
  • Military Aircraft
  • Motor Skills
  • Navy
  • Overload
  • Precision
  • Recording Systems
  • Tape Recorders
  • Task Performance And Analysis
  • Workload

Readers

  • Instructional Design and Training Evaluation.
  • Speech Processing/Speech Recognition.
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.