Which design psychology principle led to the redesign of defibrillator interfaces in the early 2000s, resulting in a documented 40% reduction in user errors during emergency situations?

Medical device design has undergone remarkable transformations over the decades, balancing clinical efficacy with user experience considerations. From early clunky interfaces to today's human-centered designs, the evolution reflects changing approaches to healthcare delivery. This poll tests your knowledge of a significant design paradigm shift in medical product development that changed how healthcare professionals interact with critical equipment.

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Cognitive load reduction through progressive disclosure
Skeuomorphic representation of analog controls
Gamification of medical procedures
Color-blind accessible palettes as primary design constraint