Friday, 15 November 2013

Entry 3 - How VR Technologies have develops in human life ..

Virtual Reality (VR) is generally defined as a three-dimensional computer-generated world that can be explored interactively through a variety of computer peripheral devices. Virtual reality (VR) can also refer to a computer-simulated environment that can simulate physical presence in places in the real world or imagined worlds. Most current virtual reality environments are primarily visual experiences, displayed either on a computer screen or through special stereoscopic displays, but some simulations include additional sensory information, such as sound through speakers or headphones. VR systems are configured to display the computer-generated world, or virtual environment, so that the image changes continuously depending upon the orientation and gaze of the user. Nowadays, human senses have allowed the interaction between human and VR technologies. These VR technologies have many usages in some specific area like in health, education and so on.

Health and Medical     
       These VR technologies can be use in health, it can also be use as a medical tool. Healthcare is one of the biggest adopters of virtual reality which encompasses surgery simulation, phobia treatment, robotic surgery and skills training. One of the advantages of this technology is that it allows healthcare professionals to learn new skills as well as refreshing existing ones in a safe environment. Plus it allows this without causing any danger to the patients. Virtual reality is quickly finding wide acceptance in the medical community as researchers and clinicians become aware of its potential benefits. In the United States, significant public dollars have been invested in the research and development of VR technologies, especially by the military which views VR as a promising tool for both training and physical and psychosocial rehabilitation. Revolutionary health care applications have been studied for surgical procedures (e.g., remote surgery), medical therapy, preventive medicine, visualization of databases, skill enhancement and rehabilitation, and medical education and training. VR has also been shown to be highly effective as a psychotherapeutic tool. It is often used to distract patients during painful medical procedures or to provide graded exposure during treatment for a wider range of anxiety disorders including posttraumatic stress disorder. VR can provide a blend of both distraction and experiential therapies that teach patients these techniques within a structured, safe environment. Virtual reality is often used as a diagnostic tool in that it enables doctors to arrive at a diagnosis in conjunction with other methods such as MRI scans. This removes the need for invasive procedures or surgery. Below is the example video of using VR to make surgery :


Education
         Besides, VR technologies can also be use in education. Education is another area which has adopted virtual reality for teaching and learning situations. The advantage of this is that it enables large groups of students to interact with each other as well as within a three dimensional environment. It is able to present complex data in an accessible way to students which is both fun and easy to learn. Plus these students can interact with the objects in that environment in order to discover more about them. For example, astronomy students can learn about the solar system and how it works by physical engagement with the objects within. They can move planets, see around stars and track the progress of a comet. This also enables them to see how abstract concepts work in a three dimensional environment which makes them easier to understand and retain. This is useful for students who have a particular learning style, e.g. creative or those who find it easier to learn using symbols, colours and textures. VR can also use in education like to train teachers before they teach their students. --> Virtual Reality Classroom Trains Teachers
            In conclusion, these types of studies may also be useful to explore related concepts which rely on the quality of information that is remembered and/or perceived within a virtual environment. The qualities of memories are also important in training in or learning from virtual environments. Since the Virtual Reality Monitoring decision process defines a measure of "realism" for a virtual reality, it can be correlated with transfer-of-training measures in order to determine if learning benefits from the degree of realism of the simulation.



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