What term describes the phenomenon when there is a mismatch between a robot's expected human-like qualities and its actual nonhuman characteristics?

The term that describes the phenomenon of a mismatch between a robot's expected human-like qualities and its actual nonhuman characteristics is known as the uncanny valley. This concept suggests that as robots or animated figures become more human-like in appearance and behavior, they become more appealing to people. However, when they become nearly human but still retain some nonhuman attributes, they create a sense of unease or discomfort among observers. This is because the imperfections in their design can trigger a negative emotional response, leading to a visceral feeling of eeriness.

Understanding the uncanny valley is crucial in fields like robotics, artificial intelligence, and animation, as it highlights the importance of achieving a balance between human-like features and authenticity to foster positive interactions and acceptance from users. It drives designers and developers to refine their creations to reduce any unsettling aspects that might lead to user rejection or discomfort.