measuring brain activity :: essays research papers

Measuring Brain ActivityMost of the noninvasive imagery methods estimate ace performance by changes in blood flow, group O consumption, glucose utilization, etc. Discuss the potential problems with using this type of indirect measure.The brain is the control center of the human body. It sends and receives millions of signals every second, day and night, in the physique of hormones, nerve impulses, and chemical messengers. This exchange of information makes us move, eat, sleep, and think. Obstructions such as tumors back interrupt normal brain activity, leading to deficits of normal reasoning, force back control, or consciousness. Many of the signs of neural damage atomic number 18 easily placeable by an outside hold openr, but since the actual cause of these problems are internal, the symptoms can be vague. The real deficits can affect the brains anatomy, or the way signals are processed. A physician can only steady down the real cause by examining the brain internally to find irregularities, both in bodily structure or in functioning. Since the brain is extremely little(a) and difficult to access without risking further damage, visualize techniques are used a great deal as a noninvasive method of visualizing the brains structure and activity. Todays engineering provides many useful tools for studying the brain. But even with our highest technology out there we do not know everything definitely. We do commit fallbacks at times and these fallbacks can lead to serious problems. The recent advances in non-invasive brain imaging, increased computational power, and advances in signal processing methods seduce heightened the research in this area. As we make progress in reading noninvasive brain signals in time we will begin to look applications that go beyond treatment. But for now these noninvasive methods of estimating brain activity is still something to be cautious about since it only measures the brains blood, oxygen consumption, glucose uti lization, and more. These measurements may not be accurate enough to fig out one persons problem. The problem again talent be internal and measuring only the obvious would not promote in figuring it all out. Other problems with using these noninvasive imaging methods of only few changes of variables in the brains activity are that maybe the problem does not reside in the blood, oxygen intake, or glucose utilization. It may be in other factors that we do not observe that is causing the trouble. By being limited to these estimations of brain activity does not really make our effort of correcting the problem that successful.