What effect occurs when visual and/or motor feedback is inconsistent with vestibular information?

The correct choice highlights motion sickness as the effect occurring when visual and/or motor feedback differs from vestibular information. This condition arises because the brain receives conflicting signals: the visual system might perceive motion while the vestibular system, which provides balance and spatial orientation information based on inner ear fluid movement, does not support this perception. As a result of this sensory conflict, the body can experience symptoms such as nausea, sweating, and disorientation. This dissonance is commonly experienced in scenarios like reading a book in a moving vehicle, where the body feels motion that the eyes do not perceive directly, leading to discomfort and potentially prompting motion sickness.

In contrast, dizziness might occur as a result of various factors, but it strictly refers to a sensation of altered spatial perception and does not encapsulate the specific response to the conflicting signals from the sensory systems. Spatial disorientation typically entails a broader range of disturbances in a pilot's ability to determine one's position or direction, not solely associated with these sensory conflicts. Hypoxia, on the other hand, relates to insufficient oxygen and is unrelated to the conflicts between vestibular and visual inputs. Thus, motion sickness is the most accurate term for this combination of conflicting sensory information.