Before revision:  The works here reviewed thus encompass several fields of research, including computer graphics, human computer interaction, or psychology and perception. Additionally, we give an overview of different applications that leverage multimodal input in areas such as medicine, training and education, or entertainment; we include works in which the integration of multiple sensory information yields significant improvements, demonstrating how multimodality can play a fundamental role in the way VRsystems are designed, and VR experiences created and consumed .
After revision:  The works here reviewed thus encompass several fields of research, and demonstrate that multimodality plays a fundamental role in the way VRsystems are designed, and VR experiences created and consumed .