Publication:
Implementation of wavelet packet transform and non linear analysis for emotion classification in stroke patient using brain signals

cris.author.scopus-author-id 55662308500
cris.author.scopus-author-id 57200576499
cris.author.scopus-author-id 25825367900
cris.author.scopus-author-id 6504514356
cris.author.scopus-author-id 55662293100
cris.author.scopus-author-id 56121604800
dc.contributor.author Bong S.Z.
dc.contributor.author Wan K.
dc.contributor.author Murugappan M.
dc.contributor.author Ibrahim N.M.
dc.contributor.author Rajamanickam Y.
dc.contributor.author Mohamad K.
dc.date.accessioned 2025-01-13T07:42:22Z
dc.date.available 2025-01-13T07:42:22Z
dc.date.issued 2017-07-01
dc.description.abstract Emotion perception in stroke patients is affected since there is abnormality in the brain. Here, researchers focused on the impact of left brain damage and right brain damage towards emotion recognition. Due to the impaired emotion recognition, it is a challenge for stroke patients to express themselves in daily communication. Hence, it is inspiring to see the possibility to predict patient's emotional state so as to prevent recurrent stroke. In this work, electroencephalograph (EEG) of 19 left brain damage patients (LBD), 19 right brain damage patients (RBD) and 19 normal control (NC) are collected as database. During data collection, six emotions (sad, disgust, fear, anger, happy and surprise) are induced by using audio visual stimuli. After normalization, EEG signals are filtered by using Butterworth 6th order band-pass filter at the cut-off frequencies of 0.5 Hz and 49 Hz. Then, wavelet packet transform (WPT) technique is implemented to localize five frequency bands: alpha (8 Hz–13 Hz), beta (13 Hz–30 Hz), gamma (30 Hz–49 Hz), alpha-to-gamma (8 Hz–49 Hz), beta-to-gamma (13 Hz–49 Hz). In WPT, four wavelet families are chosen: daubechies 4 (db4), daubechies 6 (db6), coiflet 5 (coif5) and symmlet 8 (sym8). Hurst exponents are extracted from each band and wavelet family and are classified by using K-nearest Neighbour (KNN) and Probabilistic Neural Network (PNN). Two classifications are done: comparison between three groups and comparison between six emotions. The results showed that all the H values are anti-correlated (0 < H < 0.5). From classification, the best frequency band is beta band, where sad emotion recorded the accuracy of 82.32% for LBD group. Meanwhile, both sad and fear emotion recorded 0.89 sensitivity score in LBD and RBD respectively. Due to its overall poor performance, RBD is found to have greater impairment in emotion recognition.
dc.identifier.doi 10.1016/j.bspc.2017.03.016
dc.identifier.scopus 2-s2.0-85017268497
dc.identifier.uri https://hdl.handle.net/20.500.14170/11797
dc.relation.grantno undefined
dc.relation.ispartof Biomedical Signal Processing and Control
dc.relation.ispartofseries Biomedical Signal Processing and Control
dc.relation.issn 17468094
dc.subject Electroencephalogram (EEG) | Emotion recognition | K-Nearest neighbour (KNN) | Probabilistic neural network (PNN) | Stroke | Wavelet packet transform (WPT)
dc.title Implementation of wavelet packet transform and non linear analysis for emotion classification in stroke patient using brain signals
dc.type Journal
dspace.entity.type Publication
oaire.citation.endPage 112
oaire.citation.startPage 102
oaire.citation.volume 36
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Hospital Canselor Tuanku Muhriz UKM
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Hospital Canselor Tuanku Muhriz UKM
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person.identifier.scopus-author-id 55662308500
person.identifier.scopus-author-id 57200576499
person.identifier.scopus-author-id 25825367900
person.identifier.scopus-author-id 6504514356
person.identifier.scopus-author-id 55662293100
person.identifier.scopus-author-id 56121604800
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