Brain Waves Essay

752 words - 4 pages

Imagine a man – refer to him as John* – who lost his left arm after a horrible tractor accident. Shortly after his amputation, John begins feeling strange sensations where his arm previously existed, namely excruciating pain, akin to something ripping his flesh apart. Despite the empty space, he feels his arm; the sensations seem so realistic that he almost believes his arm remains attached to his shoulder. Is John mad? Obviously his left arm no longer exists, so how could he feel pain in that empty space? To the outside world, John appears crazy - a man who cannot healthily cope with the loss of his arm. However, according to Phantom in the Brain by Dr. Ramachandran, John’s sensations stem ...view middle of the document...

Patients view their body as whole, which allows them to let go of the tension or pain they experience in their phantom.
Another explanation deals with the remapping of the brain’s body map, called the cortical homunculus (26). This map, developed by Penfield, creates a visual representation of the body within the brain. For instance, certain body parts connect with different neurons in the brain. Phantom limb sufferers experience sensations on the surface of their stump, but also on other body surfaces, namely the face. Since the face is directly next to the arms on the cortical homunculus, neurons transfer from the missing arm to the face. Therefore, John, and other patients with phantoms, may feel sensations while smiling, shaving, or merely stroking their cheek; they continue to feel the presence of their phantom because touching the face triggers feeling in their missing limb.
Additionally, patients often experience pain in their phantom. For instance, John lost his arm in a horrible accident, which caused him a great deal of pain. His stump neurons may send commands to his brain without receiving proper feedback; those commands re-create the feelings of pain prior to amputation. The commands continue until the pain becomes learned behavior – a difficult cycle to break. This results in a changed internal...

Find Another Essay On Brain Waves

Television and the Brain Essay

874 words - 3 pages which he analyzed the brain waves of patients who watched television (Nelson, 1992). What he found was that within a short time of watching television, that patient's brain waves would switch from being beta waves ( the normal, conscious and alert state), to alpha waves (somewhere between conscious and unconscious state, lack of focus and alertness). The technical explanation for what causes this is outside the scope of this essay, but it has to

Sleeping and Dreaming Essay

1256 words - 5 pages scientists had the ability to study the measurable electrical activity of the brain; it was a major breakthrough for sleep studies (1). The brains electrical activity is able to be measured with an electroencephalograph (EEG). The EEG measures your brain activity or brain waves. When you are awake and alert you exhibit beta waves which are small and fast, but immediately before sleep and when you are relaxed and allowing your mind to wander you

Paranormal Phenomena

956 words - 4 pages also make plenty of sense to an indivisual who also know how the brain carry signals. The brain have three diffrent wavelenght patterns that it uses to decipher the multitudes of even that goes on during an individual's life time. These wavelenght are known as Beta, Treta, and Delta. Beta brain waves moves at a rapid paste making action faster, but at often times can overlook simpler tasks because of its fast speed. Beta is the state of mind

Art and Music Therapy

1140 words - 5 pages music and sound waves enter the ear and brain; the sound enters the ear as a vibration and the vibration hits the eardrum; then it is passed along by the ossicles and goes into the cochlea, where it becomes sound waves. The waves of sound circulate around the cochlea, which move the basilar membrane and cause the cilia in your ear to bend, the movement of the ear cilia stimulates neuronal activity, beginning the electrochemical journey into the

Salivary Gland Tumors and Cell Phones

2284 words - 10 pages radiation which is also called radio frequency energy. Frequency describes the number of waves that pass a fixed place in a given amount of time. Scientist have predicted that this type of radiation may increase the risk of brain cell damage which can lead to tumor, and in 1995 after lots of test and experiments scientist found this case in rats. Research by professors and scientists show that radiation deeply affects a child's head because

Four parts of the brain, and their functions

545 words - 3 pages itself through the brain in a similar way that picture waves and sound waves manifest themselves through a television set. The picture and sound waves are also non-material just like the mind, spirit, or soul". (All about philosophy.org, 2009). Arguing that dualism does not exist and that the brain exists in a monism state means that the mind would "behave in a deterministic way based upon the laws of matter. Many scientists and philosophers are now

Essay 1

652 words - 3 pages . Neuroscientists now encourage meditation and believe that it actually alters the way the brain is wired. The act of meditating gives the brain a charge that comes from the left prefrontal cortex, which is located behind the left part of a persons' forehead. This charge is electrical activity, also known as gamma waves. The longer you meditate, the more gamma waves are produced. These are the strongest and most important impulses your brain produces. They

Hologram Essay

981 words - 4 pages HologramsToss a pebble in a pond -see the ripples? Now drop twopebbles close together. Look at what happens when the two setsof waves combine -you get a new wave! When a crest and a troughmeet, they cancel out and the water goes flat. When two crestsmeet, they produce one, bigger crest. When two troughs collide,they make a single, deeper trough. Believe it or not, you'vejust found a key to understanding how a hologram works. But whatdo waves in

Auditory Sensations

968 words - 4 pages Along with vision, hearing is one of the most important senses that humans have. We use it to communicate, learn, and stay aware of our environment. In fact, hearing is the only sense that never stops receiving sensory input. While all of our other senses become drastically less sensitive when we are sleeping, our brain still processes auditory information to awaken us the second something is wrong. Although this may have been more practically

Sleeping is Beneficial for the Brain

1244 words - 5 pages in terms of the functions of neural processes that selectively operate during the REM sleep state (Marks, Shaffery, Oksenberg, Speciale, & Roffwag, 1995). There are four stages of non-rapid eye movement sleep (NREM), but one begins REM sleep. Stage 1 is our lightest sleep where our eyes move slowly and are muscles activity is slow. Stage 2 is when our eye movement stops and brain waves are slowed. Stage 3, our fast and slow brain waves

Hearing is the Most Fascinating of the Senses

1388 words - 6 pages basal end of the oval window thereby progressively lowering the pitch towards the apical end. The basilar membrane of the apical end also responds to the lowest music pitches and any disturbance transmitted to the oval window causes the resonance. Hence, music sound waves are efficiently analyzed by the cochlea through the supplication of abundant neurons whose fibers transmit the sound impulses from the cochlea into the brain. The process of sound

Similar Essays

The Activity Of The Living Human Brain

1720 words - 7 pages fact he saw that the brain was very active and regular. The patterns produced were wave like and fairly regular. He identified two different patterns that were present during waking hours: - Beta waves; very common, irregular/desynchronised low amplitude waves (between 13 and 30 Hz or beats per seconds). Beta waves are seen in alert, wide-awake conscious people. Alpha waves are seen during periods of rest and deep relaxation. They are more

Electromagnetic Spectrum For The Middle School Student

1129 words - 5 pages photons increases (Bitesize 2011). The visible eye can detect waves lengths between .4 millimeters and .7 millimeters long (Groleau 2011). We call this visible light. Look around you-- everything you see has waves of light bouncing off of it that your eyes detect and turn to images in your brain. Waves measuring less than .4 millimeters long are considered ultraviolet (UV) waves (Bitesize 2011). These short waves are unsafe to living

Brain Controlled Robotic Leg Essay

926 words - 4 pages different patterns from the brain signals in order to perform its main tasks. Our brain is made up of millions of neurons that communicate with each other through electric activity. The combined electric activity of the neurons of the brain in order to send a signal forms a wave like cyclic nature. This combination is often called brain wave pattern. The four types of brain waves have been categorized according to the rate of their activity. Beta waves

Dance Analytical Statement Essay

1059 words - 5 pages My dance titled “Night’s Embrace” is about the brain waves during sleep. During sleep, our brains are the most active while our bodies are the least active. Throughout the night, our brain goes through four different stages. The brain waves in our sleep are constantly changing and is integral in our sleep. The first and second stages of the brain waves are slower and is more steady as it happens in the beginning of our sleep, lasting for only