Deep brain stimulation

In famous studies performed by Libet and Soon, it was found that unconscious brain activity occurred before a conscious action was made and that the decision making brain activity could determine a person’s choice seconds before an action was made. This neural activity lead to the discovery of readiness potentials. Readiness potentials are neural potentials that occur before a conscious voluntary movement is made. The finding of these readiness potentials lead to some debate in the existence…

Abstract Chronic inflammatory demyelinating polyneuropathy is considered an autoimmune disorder of the peripheral nervous system. It is the chronic form of Guillain-Barre syndrome, the difference between the two diseases is GBS is an acute inflammatory disease of peripheral nerves and most patients recover spontaneously while CIDP requires more attention. The cause of CIDP is unknown it is believed that it may be caused due to the immune response of the body attacking the nerve fibers causing…

That said, it doesn't mean that their brains are fully developed. It was discovered by scientists that those aged 11-14 lose some of the connections in their brain allowing them to think properly and make well-informed decisions. Alison Gopnik, Professor of Child Development at UC Berkeley said, "Ineffective or weak brain connections are pruned in much the same way a gardener would prune a tree or bush, giving the plant a desired shape." This means that the brain is preparing itself for…

area, a region where the brain interprets input from other areas of the body. Because of the parietal lobe’s role in sensory integration, spatial reasoning, and language skills, damage to the parietal lobe can have a broad range of consequences. Occipital Lobe: The main functions of the occipital lobe are vision, depth perception, identifying visual stimuli-- particularly familiar faces and objects, transmitting visual information to other brain regions so that those brain lobes can encode…

The development of many diseases that are located in the brain are linked to the developmental complications of aging. Amyotrophic lateral sclerosis is an uncommon disease that is known for the degeneration of motor neurons in the brain. The motor neurons that are affected control voluntary movement within the body; the degeneration of these motor neurons cause weakness throughout the body and muscles, paralysis, sclerosis and respiratory failure (Uccelli et al., 2007). Amyotrophic lateral…

Epilepsy is a chronic disorder with reoccurrence of unprovoked seizures that happens because of the electrical events that occur in the brain. An epileptic seiszure is a central nervous system disorder that affects neuron activity by causing an excessive amount of activity in the brain. This can be attributed to a large amount of action potentials that don’t allow for any relief, which can cause damage to the cell. Antiepileptic drug therapy for epilepsy even though proven to give relief to…

is purely temporary, to control the side-effects. Also, there is no exact cause for this disease, it could very well be genetic, or derived. For the most part, however, scientist believe that a lack of dopamine in the substantia nigra area of the brain may be the primary cause of PD. Genetics and age are also two other factors to be considered. Age cannot be used as the only factor since “about 10 percent of the nearly 1 million people living with the disease in the United States are under the…

How do Meningiomas Affect the Brain? Meningiomas are typical kind of tumor that begins in the nervous system. Though they are called brain tumors, they actually grow on the three layers of meninges of the brain and spinal cord. Meningiomas tend to grow in the meninges of the brain, but can occur in the meninges of the spinal cord. The meninges are the tissue that protects the brain and spinal cord. The cause of meningiomas is not well understood, but could be from genetic and environmental…

The nervous system houses the almighty brain. The brain controls what happens throughout the body. But what happens when genetic abnormalities cause the powerful brain to be altered? One result can be the diagnosis of autism spectrum disorder. Another strong system in the body is the skeletal system, which is comprised of the strong, structural bones. When these bones are not so strong, they may begin to lack specific vitamins necessary for proper bone health. Rickets can be a result of improper…

However, very hot or very cold stimuli may destroy touch receptors, and this penetrating stimulation may be interpreted as pain sensation. Taste and Smell Low concentrations of several chemicals present in the air can be sensed by the sensory receptors in the nose. These chemicals that we rapidly detect include those in perfumes or air fresheners…