Optical illusions

Most amputees report a sequela where they perceive painful sensations in the missing part of the amputated limbs1. This condition is known as phantom limb pain (PLP). While various hypotheses have been proposed to explain the etiology of PLP, it remains unclear1. In this essay, I will present the debate between two contrasting theories on the possible causes of PLP. One argues that PLP arises as a top-down phenomenon because of maladaptive cortical plasticity2, and conversely, the other…

himself, and Cathy Moss as herself, and two unnamed actors. This film is all about unlocking the senses and perceptions, helping the curious understand how the brain works, and making sense of the world around us. To create mind-bending sensory illusions,…

What is Perception? Is what you perceive reality? Introduction Perception is a process by which we organise, integrate and recognise stimuli in order to make sense of the world through meaning and interpretation. Perception begins when the human brain receives data from body’s five senses touch, sight, taste, smell and hearing. Knowledge and experience are extremely important for the concept, perception, this is because they help us make sense of the input to our sensory system. Without being…

possible that shakespeare is making a point about the nature of reality and perception by using one of the least appreciated artifices of theater? It would explain the last scene as the end of all of these illusions and give it a much more profound meaning than it otherwise has. All of these illusions are built up (with the help of necessary but underappreciated music and sound) and then they are all disbanded: the survivors of the “shipwreck” all find each other to be alive when they thought…

what it seems to be. Chabris shares with us what he discovered with Simons about the illusions we see everyday. He categorizes these illusions as the illusions…

heart … Only Gatsby, the man who gives his name to this book, was exempt from my reaction.” Even though all the main characters has their illusions and ambitions, Nick admires only Gatsby because “there was something gorgeous about him… an extraordinary gift for hope, a romantic readiness such as I have never found in any other person”. Everybody else’s illusions involved greed, elitism, etc, but only Gatsby’s was pure. Nick admires how “Gatsby believed in the green light, the orgastic future…

Over the past couple years many scientists have heard about this strange pain in a part of the body that no longer exists. It is called Phantom Limb Pain. Many amputees agree that this pain is too much. Phantom Limb Pain occurs in 80 percent of the people who have had a limb amputated. Some amputees may experience tingling, cramping, heat, and cold in that part that has been removed. The sensations that may have been experienced before the limb was removed may be experienced to the phantom limb.…

an illusion? An illusion is like a false idea about something .I think illusions are of value in life because I am sure everyone had an illusion before, it’s really about how the brain react. In the play “The Tempest” it has a lot of illusions in it because they use a lot of magic, but in reality we don’t use magic it is just how we think things is something but it is really something different. I feel that illusions…

Fiber optic communication systems are light wave systems that employ optical fibers for transmitting information from one point to other through an optical fiber. The driving force behind the widespread use of fiber optic communications is the demand for economic, reliable transmission media that can transmit required information capacity. The transmission capacity of optical fibers has drastically improved over the years. Today, optical communications up to 100 gb/s for several kilometers have…

heart of the operation of optical fibers. Just by altering and controlling the angle at which light is incident on the fiber, we can transmit this light signal efficiently. By this principle of Total Internal Reflection the ray of light is trapped within the denser glass of the center of the composite cylindrical glass fiber, the core as if it is guided down the core in a zigzag path of successive reflections. These light waves are guided through the core of the optical fiber just like a radio…