Kinesiology 1080A/B Lecture Notes - Lecture 13: Evoked Potential, Parietal Lobe, Electroencephalography
28 Feb 2016
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February 6, 15: measures of brain activity. Provide measures of when and what brain regions activate during movement. Eeg came out 50 years ago, measures electrical activity in the brain, looks like a swim cap that creates an electrical signal in the brain that gets reflected back towards the cap or the skull. Meg when you have a bunch of neurons moving it creates a magnetic charge and is picked up by the scalp. Picture below - each map is from the same person. The more red, the higher the level of activity. Both provide us with location of brain activity in the brain. Very good for temporal resolution (can give us brain activity within milliseconds). Downfall of this is that it has very poor spatial resolution (we can see the area of the brain that"s active but its not very specific)
