SCIENTIA SINICA Informationis, Volume 49 , Issue 9 : 1097-1118(2019) https://doi.org/10.1360/N112018-00337

A review of EEG features for emotion recognition

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  • ReceivedDec 24, 2018
  • AcceptedMar 19, 2019
  • PublishedSep 6, 2019


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  • Figure 1

    (Color online) Valence-arousal dimensional emotion model

  • Figure 2

    (Color online) ERP pattern stimulated by event at 0 ms

  • Figure 3

    (Color online) FFT calculation when $N=8$

  • Figure 4

    (Color online) 30 sampling electrodes of 32-channel NeuroScan Quik-cap

  • Table 1   Feature dimensions on SEED, DREAMER and CAS-THU
    Domain Feature SEED DREAMER CAS-THU
    Time Mean 62 14 14
    Standard deviation 62 14 14
    1-order difference 62 14 14
    Normalized 1-order difference 62 14 14
    2-order difference 62 14 14
    Normalized 2-order difference 62 14 14
    Hjorth-activity 62 14 14
    Hjorth-mobility 62 14 14
    Hjorth-complexity 62 14 14
    Energy 62 14 14
    Power 62 14 14
    HOC 310 70 70
    NSI 62 14 14
    FD 62 14 14
    Time-frequency PSD 310 42 70
    HOS 248 56 56
    DE 310 42 70
    Space DASM 135 21 35
    RASM 135 21 35
    Index 27 7 7
    DCAU 115 6 10
    MDI 27 7 7
    CSP 9
    Total 2423 463 542
  • Table 2   Features whose importance values are of top 10 on 2 or 3 datasets of SEED, DREAMER and CAS-THU when $x=$10, 30 or 50
    $x$ Domain 2 datasets 3 datasets
    10 Time Normalized 1-order difference 1-order difference
    Normalized 2-order difference 2-order difference
    Hjorth-activity Hjorth-complexity
    NSI Hjorth-mobility
    Space DASM
    30 Time Normalized 1-order difference 1-order difference
    Normalized 2-order difference 2-order difference
    Hjorth-mobility Hjorth-complexity
    Space DASM
    50 Time Normalized 1-order difference
    Normalized 2-order difference 1-order difference
    Hjorth-complexity 2-order difference
    Hjorth-mobility NSI
    Time-frequency DE