An artifact is an alteration of EEG data that is from an extra-cerebral source. The artifacts this section will cover includes: <br><br><ol><li>Electromyographic (EMG) Artifact, AKA Muscle Artifact</li><li>Eye Blink Artifact&nbsp;</li><li>Eye Movement Artifact&nbsp;</li><li>Drowsiness Artifact&nbsp;</li><li>Sweat Artifact&nbsp;</li><li>Pulse and Cardio Ballistic Artifact&nbsp;</li><li>Salt Bridge&nbsp;</li><li>Electrode and Equipment Artifacts</li><li>Environmental Noise Artifact</li><li>Medication “Artifact”</li></ol>