Beware of physiology: Anthropomorphism as a simplification mechanism for mastering complex human-machine interfaces

Area of Science:

• Cognitive Science
• Human-Machine Interaction
• Aerospace Engineering

Background:

• Humans possess advanced technical reasoning, enabling sophisticated tool development.
• Complex machines with indirect causal chains are increasingly prevalent.
• Understanding human cognitive limits in tool use, especially with complex interfaces, is crucial.

Purpose of the Study:

• To investigate the boundaries of human cognitive abilities when using complex human-machine interfaces.
• To examine potential limitations in integrating tool characteristics within human cognition.
• To explore how humans interact with sophisticated systems like aircraft.

Main Methods:

• Professional helicopter pilots performed realistic flights in a high-fidelity simulator.
• Analysis of flight trajectories, primary flight command movements, and head tilt relative to aircraft roll.
• Examined sensorimotor integration and the impact of indirect causal chains in control.

Main Results:

• Helicopter pilots significantly restricted the aircraft's operational capabilities.
• Pilots confined the helicopter's range to conditions yielding familiar sensory inputs.
• Evidence of prediction in sensory consequences of motor-to-mechanical transformations was observed.

Conclusions:

• Complex human-machine interface control is achieved through simplification via anthropomorphism.
• This simplification facilitates sensorimotor integration by aligning machine behavior with human intuition.
• Findings have implications for designing safer human-machine interfaces for sophisticated systems.