EEG

• EEG = Electroencephalography
• Measures electrical activity. Small discs attached to the scalp.
• 20 small detectors attached
• 20-40 minutes
• Normal results - 30 per second, 8Hz
• Relatively low costs
• Useful in studying the stages of sleep and in the diagnosis of epilepsy
• Can measure brain activity on the order of milliseconds and has an extremely high temporal resolution
• Monitor neuron activity in large groups of the brain and therefore it is difficult to locate the area of the brain causing issues.
• Limited ability to accurately record data from structures deeper than the cortex in the brain.