Research of the Late Positive Potential of Emotional Cognitive Reappraisal Electroencephalogram Signal Based on OVR-CSP_Journal of Biomedical Engineering

Authors：

ZHANGYi ^1,2 , PANSaihu ¹ ,  ZOULing ^1,2 , ZHOURenlai ³

1. Faculty of Information Science & Engineering, Changzhou University, Changzhou 213164, China;
2. Changzhou Key Laboratory of Biomedical Information Technology, Changzhou 213164, China;
3. Department of Psychology, School of Social and Behavioral Sciences, Nanjing University, Nanjing 210023, China;

Corresponding author：

ZOULing, Email: zouling0@aliyun.com

Keywords：

late positive potential; emotion regulation; cognitive reappraisal; feature extraction

DOI：

10.7507/1001-5515.20140230

Video：

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As an important component of the event related potential (ERP), late positive potential (LPP) is an ideal component for studying emotion regulation. This study was focused on processing and analysing the LPP component of the emotional cognitive reappraisal electroencephalogram (EEG) signal. Firstly, we used independent component analysis (ICA) algorithm to remove electrooculogram, electromyogram and some other artifacts based on 16 subjects' EEG data by using EGI 64-channal EEG acquisition system. Secondly, we processed feature extraction of the EEG signal at Pz electrode by using one versus the rest common spatial patterns (OVR-CSP) algorithm. Finally, the extracted LPP component was analysed both in time domain and spatial domain. The results indicated that ① From the perspective of amplitude comparison, the LPP amplitude, which was induced by cognitive reappraisal, was much higher than the amplitude under the condition of watching neural stimuli, but lower than the amplitude under condition of watching negative stimuli; ② from the perspective of time process, the difference between cognitive reappraisal and watching after processing with OVR-CSP algorithm was in the process of range between 0.3 s and 1.5 s; but the difference between cognitive reappraisal and watching after processing with averaging method was during the process between 0.3 s and 1.25 s. The results suggested that OVR-CSP algorithm could not only accurately extract the LPP component with fewer trials compared with averaging method so that it provided a better method for the follow-up study of cognitive reappraisal strategy, but also provide neurophysiological basis for cognitive reappraisal in emotional regulation.

Citation： ZHANGYi, PANSaihu, ZOULing, ZHOURenlai. Research of the Late Positive Potential of Emotional Cognitive Reappraisal Electroencephalogram Signal Based on OVR-CSP. Journal of Biomedical Engineering, 2014, 31(6): 1212-1217. doi: 10.7507/1001-5515.20140230 Copy

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1. OCHSNER K N, GROSS J J. Cognitive e-motion regulation:insights from social cognitive and affective neuroscience[J]. Curr Dir Psychol Sci, 2008, 17(2):153-158.
2. GROSS J J, THOMPSON R A. Emotion regulation conceptual foundations[M]//GROSS J J. Handbook of emotion regulation. New York:Guilford Press, 2007:3-24.
3. CARL J R, SOSKIN D P, KERNS C, et al. Positive emotion regulation in emotional disorders:a theoretical review[J]. Clin Psychol Rev, 2013, 33(3):343-360.
4. 程利,袁加锦,何媛媛,等.情绪调节策略:认知重评优于表达抑制[J].心理科学进展,2009,17(4):730-735.
5. RITCHEY M, DOLCOS F, EDDINGTON K M, et al. Neural correlates of emotional processing in depression:changes with cognitive behavioral therapy and predictors of treatment response[J]. J Psychiatr Res, 2011, 45(5):577-587.
6. OCHSNER K N, KNIERIM K, LUDLOW D H, et al. Reflecting upon feelings:an fMRI study of neural systems supporting the attribution of emotion to self and other[J]. J Cogn Neurosci, 2004, 16(10):1746-1772.
7. THIRUCHSELVAM R, BLECHERT J, SHEPPES G, et al. The temporal dynamics of emotion regulation:an EEG study of distraction and reappraisal[J]. Biol Psychol, 2011, 87(1):84-92.
8. HAJCAK G, MACNAMARA A, OLVET D M. Event-related potentials, emotion, and emotion regulation:an integrative review[J]. Dev Neuropsychol, 2010, 35(2):129-155.
9. PAUL S, SIMON D, KNIESCHE R, et al. Timing effects of antecedent-and response-focused emotion regulation strategies[J]. Biol Psychol, 2013, 94(1):136-142.
10. MOSER J S, KROMPINGER J W, DIETZ J, et al. Electrophysiological correlates of decreasing and increasing emotional responses to unpleasant pictures[J]. Psychophysiology, 2009, 46(1):17-27.
11. MOSER J S, HAJCAK G, BUKAY E, et al. Intentional modulation of emotional responding to unpleasant pictures:an ERP study[J]. Psychophysiology, 2006, 43(3):292-296.
12. ZOU L, XU S K, MA Z H, et al. Automatic removal of artifacts from attention deficit hyperactivity disorder electroencephalograms based?on independent component analysis[J]. Cogn Comput, 2013, 5(2):225-233.
13. LI K, SHEN J L. Classification of EEG signals by ICA and OVR-CSP[C]//20103rd International Congress on Image and Signal Processing. Yantai:2010:2980-2984.
14. Hajcak G, Nieuwenhuis S. Reappraisal modulates the electrocortical response to unpleasant pictures[J]. Cogn Affect Behav Neurosci, 2006, 6(4):291-297.

Journal of Biomedical Engineering

Research of the Late Positive Potential of Emotional Cognitive Reappraisal Electroencephalogram Signal Based on OVR-CSP

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