Complex industrial environments involve cooperation between operators and a
utomation. The strategies used to allocate tasks to automation are a crucia
l component of that cooperation and are known to be affected by the operato
rs' trust in the automation. In 2 simulated process control experiments, th
e authors compared trust in automation with trust in human partners in equi
valent situations. Experiment 1 found the relationship between trust and ta
sk allocation to be qualitatively identical, but quantitatively attenuated,
for human partners as compared with automation. Experiment 2 additionally
identified the operators' trustworthiness, as they thought it would be perc
eived by a human partner, as crucial to task allocation under human collabo
ration but not under automation. The results imply that human collaboration
benefits from calibration of people's assessment of how others perceive th
em.