Publication:
Assessments of cognitive state of Mitragyna speciosa (ketum) users during relaxation state

cris.author.scopus-author-id 58140342900
cris.author.scopus-author-id 54785424700
cris.author.scopus-author-id 56572322800
cris.author.scopus-author-id 55396574000
cris.author.scopus-author-id 36515196600
cris.author.scopus-author-id 58139050700
cris.author.scopus-author-id 55993031900
cris.virtual.department Universiti Malaysia Perlis
cris.virtual.department Universiti Malaysia Perlis
cris.virtualsource.department 00268366-977d-4a95-aa89-132c5b11e561
cris.virtualsource.department d588dcdb-be56-43c3-ad34-0d95cf6f6e71
dc.contributor.author Fadhilah A.W.
dc.contributor.author Vikneswaran Vijean
dc.contributor.author Ahmad Faizal Salleh
dc.contributor.author Rashid R.A.
dc.contributor.author Palaniappan R.
dc.contributor.author Mutusamy H.
dc.contributor.author Helmy K.
dc.date.accessioned 2024-09-28T12:56:05Z
dc.date.available 2024-09-28T12:56:05Z
dc.date.issued 2023-02-21
dc.description.abstract The abuse of Mitragyna speciosa or commonly known as ketum leaves is widespread across Asian countries. Ketum leaves that were originally used as medicine were abused for the purpose of deluding their minds. As it has intoxicated properties that similar to drugs, EEG signals of ketum users may differ from normal people as the ketum may alter the brain signal and the cognitive state of ketum users may decrease. Therefore, this study was conducted to assess the cognitive state between ketum users and non-ketum users in terms of their relaxation state by using brain signal characteristics. A total of 8 subjects were involved in the experimental session. The 8 subjects were divided into two groups which are 4 subjects were ketum users for at least one year while the other 4 subjects were non-ketum users, had enough sleep for at least 6 hours and had no mental disorders. The EEG data was recorded during awaken relaxed state and was filtered using a notch filter and Independent Component Analysis (ICA) to remove the powerline artefacts, eye blinking and eye movement. Stockwell Transform was used to reduce the amount of the large data and extract useful features from the signal. Student's t-test is performed in order to compute the percentages of the differences between the ketum users and non-ketum users in each brain lobe. Mean of Shannon Entropy, mean of Tsallis Entropy, and mean of Hurst Exponent features used were able to elucidate the differences in brain activities between the two groups investigated.
dc.identifier.doi 10.1063/5.0115271
dc.identifier.isbn [9780735444096]
dc.identifier.scopus 2-s2.0-85149955350
dc.identifier.uri https://hdl.handle.net/20.500.14170/5475
dc.language.iso en
dc.relation.grantno undefined
dc.relation.ispartof AIP Conference Proceedings
dc.relation.ispartofseries AIP Conference Proceedings
dc.relation.issn 0094243X
dc.subject Mitragyan speciosa, EEG signals, ketum users, stockwell transform
dc.title Assessments of cognitive state of Mitragyna speciosa (ketum) users during relaxation state
dc.type Conference Proceeding
dspace.entity.type Publication
oaire.citation.volume 2562
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaya
oairecerif.affiliation.orgunit University of Technology Bahrain
oairecerif.affiliation.orgunit National Institute of Technology, Uttarakhand
oairecerif.affiliation.orgunit Asian Institute of Medicine, Science & Technology
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.citation.number 060005
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.scopus-author-id 58140342900
person.identifier.scopus-author-id 54785424700
person.identifier.scopus-author-id 56572322800
person.identifier.scopus-author-id 55396574000
person.identifier.scopus-author-id 36515196600
person.identifier.scopus-author-id 58139050700
person.identifier.scopus-author-id 55993031900
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Research repository notification.pdf
Size:
4.4 MB
Format:
Adobe Portable Document Format
Description: