The Electroencephalogram (EEG) is a non-invasive method for measuring brain activity. It actually measures the tiny voltage changes on the scalp resulting from the synchronous electrical activity of thousands of brain cells and provides information about the neural activation patterns and information processing in the brain.
EEG- a window into the real time neural processing
The EEG signal reflects changes in the neural oscillations occurring within milliseconds, which makes it an invaluable tool for investigation of the rapid cortical information processing and for the development of fast and responsive brain computer interfaces (BCI) that can capture, interpret and feed back the signal collected from the brain. The neurofeedback training we offer at the Bright Brain Centre is an instance of such a brain computer interface.
The EEG signal consists of electrical oscillations with different rhythmical characteristics referred to as brainwaves. The brainwave spectrum reflects the individual’s state of arousal, or the ‘tone’ of the nervous system, and its analysis reveals the patterns of individual’s cortical information processing. Although operating in a continuous spectrum, brainwaves are commonly divided into frequency bandwidths to describe their function. These functional characteristics of the brainwaves, alongside with the loci of their generation lay in the core of the analysis we conduct as part of your qEEG brain assessment.
More detailed information on the individual brain frequencies can be found here.