What is the Origin of Quantitative EEG?

This technique is an evolution of traditional electroencephalography (EEG), integrating computational neuroscience and signal processing to quantify the raw electrical data. The term "Quantitative" highlights the objective, numerical analysis.

What is the Mechanism of Quantitative EEG?

Multiple electrodes placed on the scalp capture the summed electrical activity of millions of cortical neurons, which is then digitized. Specialized software processes this raw data using Fourier transforms to break it down into frequency bands (e.g., delta, theta, alpha, beta). The resulting brain maps and indices are then compared to normative databases, allowing clinicians to identify specific patterns of dysregulation related to focus, mood, or sleep.

Quantitative EEG ∞ Area

Quantitative EEG

Meaning

A sophisticated, non-invasive neurophysiological diagnostic tool that involves digitally recording brain electrical activity (EEG) and then applying advanced mathematical and statistical analyses to quantify and map various parameters of brain function. This technique provides objective data on brainwave frequencies, coherence, and power distribution, offering clinical insights into cognitive states, neurological imbalances, and treatment efficacy. It moves beyond visual inspection to provide a metric-based assessment.