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[The functional comfort zone for a human operator controlling a dynamic object]
Kosmicheskaia Biologiia I Aviakosmicheskaia Meditsina
|March 1, 1985
Summary
Operators performing complex tracking tasks experienced less psychic strain within a defined
Area of Science:
- Human-computer interaction
- Ergonomics
- Psychophysiology
Background:
- Operator performance in ergatic systems is influenced by psychic strain.
- Understanding the limits of human performance is crucial for system design.
Purpose of the Study:
- To objectively evaluate the psychic strain experienced by operators during multiparameter compensatory tracking.
- To identify the 'zone of functional comfort' for optimal control parameters.
Main Methods:
- Six operators performed multiparameter compensatory tracking of a moving object.
- Psychic strain was objectively evaluated to identify parameter zones.
Main Results:
- A 'zone of functional comfort' was identified, requiring minimal psychophysiological cost.
- Control outside this zone led to information overload or increased failure risk.
- Five operators showed significant psychic strain aggravation when operating outside the comfort zone.
Conclusions:
- Identifying the zone of functional comfort is key to optimizing operator performance.
- Data display device design should incorporate this zone to enhance ergatic systems.