Figure 2
Quantitative EEG and raw EEG representation of various clinical manifestations in the non-epileptic patients. (A) Raw EEG (left) showing quasi-rhythmic discharge over the central head regions; quantitative EEG (right) showing positive seizure detection; clinically, rhythmic head jerking is evident. (B) Raw EEG (left) showing overlying muscle and movement artefacts; quantitative EEG (right) remains normal throughout; clinically, non-rhythmic whole-body jerking is evident. (C) Raw EEG (left) showing overlying muscle artefact; quantitative EEG (right) remains normal throughout; clinically, whole-body stiffening with some jerking is evident. (D) Raw EEG (left) showing overlying muscle artefact; quantitative EEG (right) remains normal throughout; clinically, whole-body tonic posturing is evident.