Investigating EEG Patterns for Dual-Stimuli Induced Human Fear Emotional State
1
Electrical Engineering Department, Bahria University, Karachi 75260, Pakistan
2
Computer Science Department, Bahria University, Karachi 75260, Pakistan
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(3), 522; https://doi.org/10.3390/s19030522
Received: 12 December 2018 / Revised: 11 January 2019 / Accepted: 21 January 2019 / Published: 26 January 2019
(This article belongs to the Section Biosensors)
Most electroencephalography (EEG) based emotion recognition systems make use of videos and images as stimuli. Few used sounds, and even fewer studies were found involving self-induced emotions. Furthermore, most of the studies rely on single stimuli to evoke emotions. The question of “whether different stimuli for same emotion elicitation generate any subject-independent correlations” remains unanswered. This paper introduces a dual modality based emotion elicitation paradigm to investigate if emotions can be classified induced with different stimuli. A method has been proposed based on common spatial pattern (CSP) and linear discriminant analysis (LDA) to analyze human brain signals for fear emotions evoked with two different stimuli. Self-induced emotional imagery is one of the considered stimuli, while audio/video clips are used as the other stimuli. The method extracts features from the CSP algorithm and LDA performs classification. To investigate associated EEG correlations, a spectral analysis was performed. To further improve the performance, CSP was compared with other regularized techniques. Critical EEG channels are identified based on spatial filter weights. To the best of our knowledge, our work provides the first contribution for the assessment of EEG correlations in the case of self versus video induced emotions captured with a commercial grade EEG device.
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Keywords:
brain computer interface; classification; common spatial pattern (CSP); electrode reduction; electroencephalography (EEG); emotions
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Masood, N.; Farooq, H. Investigating EEG Patterns for Dual-Stimuli Induced Human Fear Emotional State. Sensors 2019, 19, 522. https://doi.org/10.3390/s19030522
AMA Style
Masood N, Farooq H. Investigating EEG Patterns for Dual-Stimuli Induced Human Fear Emotional State. Sensors. 2019; 19(3):522. https://doi.org/10.3390/s19030522
Chicago/Turabian StyleMasood, Naveen; Farooq, Humera. 2019. "Investigating EEG Patterns for Dual-Stimuli Induced Human Fear Emotional State" Sensors 19, no. 3: 522. https://doi.org/10.3390/s19030522
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