EEG-Based Emotion Recognition Using Frequency Domain Features and Support Vector Machines

  • Xiao-Wei Wang
  • Dan Nie
  • Bao-Liang Lu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7062)

Abstract

Information about the emotional state of users has become more and more important in human-machine interaction and brain-computer interface. This paper introduces an emotion recognition system based on electroencephalogram (EEG) signals. Experiments using movie elicitation are designed for acquiring subject’s EEG signals to classify four emotion states, joy, relax, sad, and fear. After pre-processing the EEG signals, we investigate various kinds of EEG features to build an emotion recognition system. To evaluate classification performance, k-nearest neighbor (kNN) algorithm, multilayer perceptron and support vector machines are used as classifiers. Further, a minimum redundancy-maximum relevance method is used for extracting common critical features across subjects. Experimental results indicate that an average test accuracy of 66.51% for classifying four emotion states can be obtained by using frequency domain features and support vector machines.

Keywords

human-machine interaction brain-computer interface emotion recognition electroencephalogram 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Xiao-Wei Wang
    • 1
  • Dan Nie
    • 1
  • Bao-Liang Lu
    • 1
    • 2
  1. 1.Center for Brain-Like Computing and Machine Intelligence Department of Computer Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.MOE-Microsoft Key Lab. for Intelligent Computing and Intelligent SystemsShanghai Jiao Tong UniversityShanghaiChina

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