Electroencephalography (EEG) Explained | Neuroscience Methods 101

What is an Electroencephalogram, or EEG? EEG is an important research tool used in neuroscience to measure brain activity. The goal of this video is to provide an introduction to what EEG is and how it is used.

Neurons send signals by the influx and outflux of electrically charged particles. When a group of neurons does this in synchrony, the electric charge, although still very small, is big enough to be picked up on the skull. EEG sensors, or electrodes, are able to pick up this charge and translate it into a signal, after amplification.

EEG signals reflect wavy lines. How fast these brain waves are, in other words their frequency, is coupled to various functions. EEG rhythms can be divided in many categories, such as delta, theta, alpha, beta and gamma frequency.

Neuroscience Methods 101, the series where we discuss and explain various scientific methods that are used by researchers studying neuroscience!

References/Resources:
Schomer D.L., Lopes da Silva, F.H. (2017). Niedermeyer's Electroencephalography: Basic Principles, Clinical Applications, and Related Fields (Seventh ed.), Lippincott Williams & Wilkins, Philadelphia.

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Narrated by: Miles Wischnewski

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[minsuma]

Thank you so much, this helped me a lot with my assignment