What are the best tips for EEG analysis?

Electroencephalogy (EEG) is a process by which scientists and neurologists record the electrical activity of nerve cells in the brain by several electrodes connected to the scalp. After 20 to 40 minutes of data collection, doctors can assess a formula of oscillations from synchronized activity of large groups of nerve cells for abnormalities that reflect brain or disease dysfunction. The most commonly observed wave patterns, including alpha, beta and delta waves, fluctuate in the frequency range on-20-megahertz (MHz), each wave has its own frequency sub-range. Through the analysis of EEG, neurologists can identify abnormal wave patterns and locate anomalous brain activity.

EEG demonstrates the alpha waves between eight to 13 MHz, based on the rear of the brain, with a higher amplitude wave on the dominant side of the brain. Alpha wool occurs when the patient is released with closed eyes. Waves reduce the height of WHEN EYES are open. Abnormal alpha activity on EEG M analysisIt can indicate a comatose condition. The difference in the size of the waves between the two sides, which exceeds 50 percent, indicates the brain abnormalities.

Delta waves, with slow frequencies of one to four MHz, can be seen in the frontal areas of most adults. These waves occur at normal sleep, but may be abnormally present in patients with hydrocephalus (too much brain fluid), metabolic imbalance and deep lesion of brain tissue. On the other hand, beta waves, usually at frequencies higher than 13 MHz, are also found in patients who are vigilant, active and busy. After analysis of EEG, beta waves can be dull in patients who have taken sedative.

The waves occur at the same frequency as the alpha waves and come from the brain areas that control the senses and movement. Treats occur more prominent during relaxation states than during a period of warning activity. In the caseEch, where excessive waves of MU can be an autism possible diagnosis. Theta waves occur with drowsiness or excitement and are measured in areas, except where the mind is actively involved in the task. Theta waves are recorded in EEG analysis when the patient tries to suppress the idea or avoid action.

tips and strong wave fluctuations can reflect seizure activity in the case of epilepsy, drug -induced seizures or trauma -related convulsions. During the EEG analysis, these rapid, transient wave changes must be interpreted with a view of the potential of artifacts produced by the environment, muscle activity, eye blast or movement and movement of the tongue. The artifact is a critical point of view when EEG occurs in a patient with Parkinson's disease or tremor. Artefacts from the heart rhythm can also produce "noise" while reading EEG.