Visualizations are an integral part of education, and the features of visualizations have been associated with differences in learning and generalization. I propose that students use the features of visualizations, such as their perceptual richness, as cues to infer the generality of the information presented in lessons. I test this proposal in 10…

A challenge for the virtual reality (VR) industry is facing is that VR is not immersive enough to make people feel a genuine sense of presence: the low frame rate leads to dizziness and the lack of human body visualization limits the human-computer interaction. In this dissertation, I present our research on enhancing visual and gestural fidelity…

The work described here represents an effort to understand and influence visual attention while solving physics problems containing a diagram. Our visual system is guided by two types of processes--top-down and bottom-up. The top-down processes are internal and determined by ones prior knowledge and goals. The bottom-up processes are external and…

Visual stress is a perceptual dysfunction that appears to affect how information is processed as it passes from the eyes to the brain. Photophobia, visual resolution, restricted focus, sustaining focus, and depth perception are all components of visual stress. Because visual stress affects what is perceived by the eye, students with this disorder…