Researchers are exploring the use of virtual reality-based gamma sensory stimulation, including 40 Hz sensory therapy, to treat brain disorders such as Alzheimer's disease. Studies are investigating the physiological basis and therapeutic mechanisms of this approach, as well as its effects on neural oscillations and cognitive function. The research also involves the use of virtual reality-based tests to assess cognitive abilities, such as verbal memory and spatial navigation, in patients with Alzheimer's and other conditions.