TERA EEG is a digital signal processing technology for analysing Brain’s electrical activity (commonly known as Brain waves). TERA EEG is a novel technology that is superior to conventional EEG, which has been in use in the medical field for several decades. It is the first ever ‘Digital signal processor’ that gives high resolution brain spectra, magnified - one trillion times with a clean output signal (filtered from unwanted noise and artefacts). TERA EEG gives us important information about brain’s functionality which is not possible through routine EEG tests or structural imaging tests. TERA EEG can help us detect cognitive and behavioural disorders such as ADHD, Autism, speech and learning disorders. It can also present us with clinically significant data that helps evaluate brain function after traumatic injuries, stroke, conditions such as Parkinson’s, Alzeihmers, dementias, brain tumors etc…. Also it can be used for assesing psychometric abilities and psychological states of humans. TERA EEG is a non invasive, effective and quick diagnostic tool for brain and nervous system disorders, making it a unique and versatile technology.