The human brain operates through electrical signals, categorized into different frequency bands that correspond to various cognitive and physiological states. Among these, delta (0.5–4 Hz) and theta (4–8 Hz) waves play critical roles in brain function, particularly in the frontal lobes, which are responsible for executive functions, decision-making, and emotional regulation. Abnormal activity in these frequencies is linked to various neurological and psychiatric conditions, including schizophrenia, depression, traumatic brain injury (TBI), ADHD, and neurodegenerative diseases. Electroencephalography (EEG) is a key diagnostic tool in assessing delta and theta activity, providing valuable insights into brain function and potential disorders. The Discovery of...

Electroencephalography (EEG) is a non-invasive neuroimaging technique that measures and records electrical activity in the brain. By placing electrodes on the scalp, EEG captures the fluctuations in voltage resulting from the collective activity of millions of neurons. This allows healthcare professionals to analyze brain function, diagnose neurological disorders, and monitor brain activity during various tasks or conditions.   What is a Brain Map in EEG? A brain map in EEG, also known as a quantitative EEG (qEEG) or brainwave mapping, refers to the process of analyzing EEG data to create visual representations of brain activity across different regions of the...