Electrodynamics of olfactory induced signals: an electro-encephalographic study
The goal of our study is to find the spatio-temporal behavior of the olfactory induces oscillation. Independent component analysis algorithm is used for potential of the scalp electrode. Electroencephalographic response to pleasant and unpleasant smell is recorded. Boundary element head model is use...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Karcahi
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88776/1/ABSTRACT.pdf |
| _version_ | 1825936570184630272 |
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| author | Qureshi, Sitwat Jahangir, Muhammad Rehman, Rizwan Siddiqui, Imran Abbas, Syed Zeeshan Che Abdullah, Che Azurahanim |
| author_facet | Qureshi, Sitwat Jahangir, Muhammad Rehman, Rizwan Siddiqui, Imran Abbas, Syed Zeeshan Che Abdullah, Che Azurahanim |
| author_sort | Qureshi, Sitwat |
| collection | UPM |
| description | The goal of our study is to find the spatio-temporal behavior of the olfactory induces oscillation. Independent component analysis algorithm is used for potential of the scalp electrode. Electroencephalographic response to pleasant and unpleasant smell is recorded. Boundary element head model is used to represent the head volume conductor. Artifact rejection is performed by visual and semi-automatic method. After rejection of unwanted signal
independent component analysis (ICA) is performed with the Electroencephalography (EEGLAB). Current source localization is done by fitting an equivalent current dipole model. Oscillatory phenomena as; delta, theta, alpha, beta and gamma are responses to an event, are observed. We find that, 0.5-13Hz activity is pronounced for pleasant odor in frontal regions and 13-50Hz is more active for unpleasant smell in occipital and temporal regions. After stimulation, 200 to 400ms is active time window for the signal amplitude and frequency as well for unpleasant smell. Dipole
analysis shows higher residual variance (RV) for pleasant odor than unpleasant. These results would be cutting-edge steps in solving inverse problem and digitizing the odor. |
| first_indexed | 2024-03-06T10:46:17Z |
| format | Article |
| id | upm.eprints-88776 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:46:17Z |
| publishDate | 2020 |
| publisher | University of Karcahi |
| record_format | dspace |
| spelling | upm.eprints-887762021-11-03T06:28:54Z http://psasir.upm.edu.my/id/eprint/88776/ Electrodynamics of olfactory induced signals: an electro-encephalographic study Qureshi, Sitwat Jahangir, Muhammad Rehman, Rizwan Siddiqui, Imran Abbas, Syed Zeeshan Che Abdullah, Che Azurahanim The goal of our study is to find the spatio-temporal behavior of the olfactory induces oscillation. Independent component analysis algorithm is used for potential of the scalp electrode. Electroencephalographic response to pleasant and unpleasant smell is recorded. Boundary element head model is used to represent the head volume conductor. Artifact rejection is performed by visual and semi-automatic method. After rejection of unwanted signal independent component analysis (ICA) is performed with the Electroencephalography (EEGLAB). Current source localization is done by fitting an equivalent current dipole model. Oscillatory phenomena as; delta, theta, alpha, beta and gamma are responses to an event, are observed. We find that, 0.5-13Hz activity is pronounced for pleasant odor in frontal regions and 13-50Hz is more active for unpleasant smell in occipital and temporal regions. After stimulation, 200 to 400ms is active time window for the signal amplitude and frequency as well for unpleasant smell. Dipole analysis shows higher residual variance (RV) for pleasant odor than unpleasant. These results would be cutting-edge steps in solving inverse problem and digitizing the odor. University of Karcahi 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88776/1/ABSTRACT.pdf Qureshi, Sitwat and Jahangir, Muhammad and Rehman, Rizwan and Siddiqui, Imran and Abbas, Syed Zeeshan and Che Abdullah, Che Azurahanim (2020) Electrodynamics of olfactory induced signals: an electro-encephalographic study. International Journal of Biology and Biotechnology, 17 (2). 235 - 242. ISSN 1810-2719 https://ijbbku.com/17-2-20.php |
| spellingShingle | Qureshi, Sitwat Jahangir, Muhammad Rehman, Rizwan Siddiqui, Imran Abbas, Syed Zeeshan Che Abdullah, Che Azurahanim Electrodynamics of olfactory induced signals: an electro-encephalographic study |
| title | Electrodynamics of olfactory induced signals: an electro-encephalographic study |
| title_full | Electrodynamics of olfactory induced signals: an electro-encephalographic study |
| title_fullStr | Electrodynamics of olfactory induced signals: an electro-encephalographic study |
| title_full_unstemmed | Electrodynamics of olfactory induced signals: an electro-encephalographic study |
| title_short | Electrodynamics of olfactory induced signals: an electro-encephalographic study |
| title_sort | electrodynamics of olfactory induced signals an electro encephalographic study |
| url | http://psasir.upm.edu.my/id/eprint/88776/1/ABSTRACT.pdf |
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