Evaluation of Mental Stress Using Physiological Signals

This research aims at the detection of mental stress using electroencephalogram
(EEG) and electrocardiogram (ECG) signals. The proposed scheme works by
evaluating physiological variability that occurs in mentally stress and control
environments. For acquiring physiological signals, an experimental paradigm was
designed to solve mental arithmetic tasks under stress and control conditions. Both
experiment conditions had four levels of task and every level was separately analysed
for variations in signals.