Emotions are biological states related to nervous systems. EEG provides reliable non-invasive brain activity measurement. Current emotion recognition methods use either non-physiological or physiological signals
EEG measures brain's electrical activity using scalp electrodes since 1929. Brain waves are measured in hertz (cycles per second) and classified into five types. Sensors detect voltage shifts from multiple neurons firing simultaneously
QEEG applies mathematical methods to EEG data for behavioral and cognitive analysis. EEG records brain activity using scalp electrodes. Four main frequency bands: Delta, Theta, Alpha, and Beta
Free, open-source viewer for time-series storage files like EEG, EMG, ECG. Works on multiple platforms without dependencies. Supports EDF, EDF+, BDF, BDF+ file formats. Includes built-in BDF and EDF validator
EEG records brain activity using scalp sensors and machine. Test is painless and carried out by clinical neurophysiologist. Usually takes 20-40 minutes, sometimes up to an hour
Herbert Jasper created the 10-20 system in mid-20th century for EEG electrode placement. System uses actual and nominal percentages of scalp landmarks. Four key landmarks: nasion, inion, and preauricular points. Electrodes are placed using letters (F, T, P, O) and numbers (odd/even/z)