Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials
Although food consumption is one of the most basic human behaviors, the factors underlying nutritional preferences are not yet clear. The use of classification algorithms can clarify the understanding of these factors. This study was aimed at measuring electrophysiological responses to food/nonfood...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2021/6472586 |
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| author | Selen Güney Sema Arslan Adil Deniz Duru Dilek Göksel Duru |
| author_facet | Selen Güney Sema Arslan Adil Deniz Duru Dilek Göksel Duru |
| author_sort | Selen Güney |
| collection | DOAJ |
| description | Although food consumption is one of the most basic human behaviors, the factors underlying nutritional preferences are not yet clear. The use of classification algorithms can clarify the understanding of these factors. This study was aimed at measuring electrophysiological responses to food/nonfood stimuli and applying classification techniques to discriminate the responses using a single-sweep dataset. Twenty-one right-handed male athletes with body mass index (BMI) levels between 18.5% and 25% (mean age: 21.05±2.5) participated in this study voluntarily. The participants were asked to focus on the food and nonfood images that were randomly presented on the monitor without performing any motor task, and EEG data have been collected using a 16-channel amplifier with a sampling rate of 1024 Hz. The SensoMotoric Instruments (SMI) iView XTM RED eye tracking technology was used simultaneously with the EEG to measure the participants’ attention to the presented stimuli. Three datasets were generated using the amplitude, time-frequency decomposition, and time-frequency connectivity metrics of P300 and LPP components to separate food and nonfood stimuli. We have implemented k-nearest neighbor (kNN), support vector machine (SVM), Linear Discriminant Analysis (LDA), Logistic Regression (LR), Bayesian classifier, decision tree (DT), and Multilayer Perceptron (MLP) classifiers on these datasets. Finally, the response to food-related stimuli in the hunger state is discriminated from nonfood with an accuracy value close to 78% for each dataset. The results obtained in this study motivate us to employ classifier algorithms using the features obtained from single-trial measurements in amplitude and time-frequency space instead of applying more complex ones like connectivity metrics. |
| format | Article |
| id | doaj-art-dea78748e7e043e8844eb8edb9d50486 |
| institution | Kabale University |
| issn | 1176-2322 1754-2103 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-dea78748e7e043e8844eb8edb9d504862025-08-20T03:26:16ZengWileyApplied Bionics and Biomechanics1176-23221754-21032021-01-01202110.1155/2021/64725866472586Identification of Food/Nonfood Visual Stimuli from Event-Related Brain PotentialsSelen Güney0Sema Arslan1Adil Deniz Duru2Dilek Göksel Duru3Marmara University, Institute of Health Sciences, Istanbul, TurkeyMarmara University, Institute of Health Sciences, Istanbul, TurkeyMarmara University, Sports Science Faculty, Istanbul, TurkeyDepartment of Molecular Biotechnology, Turkish-German University, Istanbul, TurkeyAlthough food consumption is one of the most basic human behaviors, the factors underlying nutritional preferences are not yet clear. The use of classification algorithms can clarify the understanding of these factors. This study was aimed at measuring electrophysiological responses to food/nonfood stimuli and applying classification techniques to discriminate the responses using a single-sweep dataset. Twenty-one right-handed male athletes with body mass index (BMI) levels between 18.5% and 25% (mean age: 21.05±2.5) participated in this study voluntarily. The participants were asked to focus on the food and nonfood images that were randomly presented on the monitor without performing any motor task, and EEG data have been collected using a 16-channel amplifier with a sampling rate of 1024 Hz. The SensoMotoric Instruments (SMI) iView XTM RED eye tracking technology was used simultaneously with the EEG to measure the participants’ attention to the presented stimuli. Three datasets were generated using the amplitude, time-frequency decomposition, and time-frequency connectivity metrics of P300 and LPP components to separate food and nonfood stimuli. We have implemented k-nearest neighbor (kNN), support vector machine (SVM), Linear Discriminant Analysis (LDA), Logistic Regression (LR), Bayesian classifier, decision tree (DT), and Multilayer Perceptron (MLP) classifiers on these datasets. Finally, the response to food-related stimuli in the hunger state is discriminated from nonfood with an accuracy value close to 78% for each dataset. The results obtained in this study motivate us to employ classifier algorithms using the features obtained from single-trial measurements in amplitude and time-frequency space instead of applying more complex ones like connectivity metrics.http://dx.doi.org/10.1155/2021/6472586 |
| spellingShingle | Selen Güney Sema Arslan Adil Deniz Duru Dilek Göksel Duru Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials Applied Bionics and Biomechanics |
| title | Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials |
| title_full | Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials |
| title_fullStr | Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials |
| title_full_unstemmed | Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials |
| title_short | Identification of Food/Nonfood Visual Stimuli from Event-Related Brain Potentials |
| title_sort | identification of food nonfood visual stimuli from event related brain potentials |
| url | http://dx.doi.org/10.1155/2021/6472586 |
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