Section: Application Domains

Analgesia

One of the most important aspect in general anesthesia is the loss of pain. During surgery, it is very difficult to find out whether the anesthetized patient feels pain and hence will develop cognitive impairment after surgery. Today, the anesthesiologist knows and detects physiological signs of pain, such as sweat, colour of skin or spontaneous involuntary movements. However, more objective criteria based on EEG may assist the pain detection and hence improve the patients’ situation. To this end, we analyze large sets of patient EEG-data observed during surgery and aim to extract EEG signal features of pain.