Abstract: There is described a computer-implemented method for measurement of a level of pain. The method comprises the steps of: — receiving measured data comprising electroencephalogram, EEG, data collected from one or more EEG electrodes; — extracting from the EEG data, a group 4 indicator corresponding to: — a power, power (ta), associated with a theta-alpha frequency band, ta, within a theta-alpha frequency range; and - determining, based on said group 4 indicator, a level of pain, LoP, which is a value indicative for the level of pain in the subject.

Abstract: There is described a computer-implemented method for measurement of a level of modified consciousness and a level of pain. The method comprises the steps of: - receiving measured data comprising electroencephalogram, EEG, data collected from one or more EEG electrodes; - extracting from the EEG data, a group indicators corresponding to: - a power, power (ta), associated with a theta-alpha frequency band, ta, within a theta-alpha frequency range; and - a power, F-power(dt) and/or P-power(dt), associated with a delta-theta frequency band, dt, within a delta-theta frequency range extracted from the at least one F- EEG and/or P- EEG electrode data; - determining, based on said group indicators, a depth of state, DoS, which is a value indicative for the level of a modified state of consciousness and a level of pain, LoP, which is a value indicative for the level of pain in the subject.

Abstract: There is described a computer-implemented method for measurement of a level of anxiety combined with and/or correlated with a level of a modified state of consciousness and/or a level of pain. There is received measured data comprising BEG data. From the EEG data there is extracted a group (8) indicator based on a power, P-power (dt), associated with a delta-theta frequency band, dt, within a delta-theta frequency range. From the EEG data there is further extracted a group (1) indicator based on, a power, F-power(dt), associated with a delta-theta frequency band, dt, within a delta-theta frequency range; and/or a group (4) indicator corresponding to a power, power (ta), associated with a theta-alpha frequency band, ta, within a theta-alpha frequency range. There is e determined, based on said group (8) indicator, a level of anxiety.

Abstract: There is described a method and system for measuring a level of anxiety. Measured data comprising EEG data collected from a parietal (P) EEG electrode is received. A group 8 indicator based on a power, P-power (dt), associated with a delta-theta frequency band, dt, within a delta-theta frequency range is extracted. Based on said group 8 indicator, a level of anxiety, LoA, is determined which is a value indicative of the level of anxiety of the subject.

Abstract: A computer-implemented method for determining and/or monitoring a level of modified state of consciousness of a subject receiving a treatment session comprising modifying the state of consciousness of the subject non-pharmacologically, the method comprising the steps of: receiving response data representing a subject's response to the treatment session, wherein the response data comprises measured data comprising electroencephalogram, BEG, data, the EEG data comprising: data collected from at least one of: at least one frontal (F) EEG electrode located on the scalp anatomical region corresponding to a frontal lobe of the subject, and at least one parietal (P) EEG electrode located on the scalp anatomical region corresponding to a parietal lobe of the subject, determining from the response data, the level of modified state of consciousness of a subject of the subject.