Calibration and Estimation of Complex Behavioral Models: A person's hand interacting with an intricate mechanical device, likely used for calibration and estimation of complex behavioral models. The device is predominantly black with gold accents, featuring various components such as gears, levers, and dials. The person's hand is carefully positioned on the device, suggesting precision and attention to detail in their task. The background appears darkened, which may be a result of the lighting conditions or intentional design choice to focus attention on the device itself. Overall, the image conveys a sense of technical expertise and meticulousness in handling complex machinery.