Quantification and categorization of emotion using cross cultural music: An EEG based fractal study

In this work we have tried to quantify and categorize the emotional appraisal of 8 cross-cultural instrumental clips with the help of neurocognitive physics approach. Human response data is taken for 70 respondents from which the emotional appraisal for a particular musical clip is standardized. EEG is taken for 5 normal patients and response for different frequency bands (alpha, theta, gamma) of the EEG spectrum is analyzed using Detrended Fluctuation Analysis (DFA). The DFA scaling exponent is calculated for all the 3 different frequency bands of EEG signals under the effect of different emotional music clips in the frontal, temporal and occipital lobes. We have tried to develop DFA scaling exponent as a single parameter with which we can characterize and quantify emotional arousal corresponding to different emotional clips and corroborate the findings from human response study Outcomes are discussed in details in the paper.