Application of EEG Signal Recognition Method Based on Duffing Equation in Psychological Stress Analysis

Table 1

Data preprocessing of EEG signal.

Test number	Data duration (ms)	Sampling frequency (Hz)	Signal amplitude (μV)	Number of samples
1	200	250	-80	1000
2	300	500	-20	1200
3	400	750	20	1300
4	500	1000	80	1400