Defining the power spectrum in terms of different ranges named delta, theta, alpha, beta and gamma forms a fundamental framework in the EEG literature today. …
Lab Talk
Alpha, Alpha Everywhere: What Does it Mean?
Activity in the alpha band has been a subject of much interest since the first recording of EEG. However methodological inconsistencies and confounding changes across…
Alpha Oscillations and Attention
Alpha activity in the EEG is associated with attention and internal imagery but questions remain. Alpha oscillations are perhaps the most noticeable feature of EEG…
The Blue Frog in the EEG
Alpha, beta, gamma what? Spectral decomposition of the EEG signal may lose critical information. In 1924 when Hans Berger first found a signal from the…