Shared control depends more strongly on sustained mutual trust than either full manual or full autonomy
Aliases: bidirectional trust · trust calibration · shared-control adaptation
What it is
Mutual trust in shared control means the person relies on assistance and constraint at appropriate times, while the machine estimates human intent and input quality. Machine “trust” is an algorithmic reliability estimate, not emotion; both estimates continuously affect one output.
Why it happens
Distrust prompts opposition or bypass, whereas overtrust reduces monitoring. If the machine treats hesitation or obstacle-driven correction as low skill, it may increase assistance and further reduce agency, creating feedback. Transparent conflict, reversible adjustment, and stable performance recalibrate both models.
Studying it
Longitudinal changes in machine reliability, human input noise, and transparency can measure reliance, override, input strategy, weight adaptation, agency, and outcome. Coupled time series matter more than one trust rating. Machine estimates require bias testing across ability and experience.
Where it stops holding
Machine “trust” must not anthropomorphically justify exclusion of disabled or novice input. Mutual trust does not replace hard safety and authority. All modes need calibration, but continuous shared coupling moves error into action faster.
Applying it
- Show why assistance changes and permit safe reduction, confirmation, or recalibration.
- Log input features and machine estimates, auditing whether slow, tremulous, or atypical control is misclassified.
- Across sessions, perturb and restore performance, checking return to appropriate reliance rather than persistent opposition or abandonment.
Related
- Same group: X4.04.1 In shared control, human and machine inputs are fused into one output · X4.04.2 Fusion-weight allocation must be predictable rather than opaque · X4.04.3 Arbitration of human–machine intent conflict needs timely feedback
- Adjacent: X4.07 Operator situation awareness · X4.08 Responsibility allocation
- Search terms:
mutual trust·trust calibration·shared control adaptation