A novel channel reduction concept to enhance the classification of motor imagery tasks in brain-computer interface systems Article Swipe
Taslima Khanam
,
Siuly Siuly
,
Kabir Ahmad
,
Hua Wang
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pone.0335511
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1371/journal.pone.0335511
Electroencephalogram (EEG) signals play a critical role in advancing brain-computer interface (BCI) systems, particularly for detecting motor imagery (MI) movements. However, analysing large volume of EEG datasets faces some challenges due to redundant information, and performance degradation. Irrelevant channels introduce noise, which reduces accuracy and slows system performance. To address these issues, this study aims to develop a novel channel selection method to enhance EEG-based MI task performance in BCI applications. Our proposed hybrid approach combines statistical t-tests with a Bonferroni correction-based channel reduction technique, followed by the application of a Deep Learning Regularized Common Spatial Pattern with Neural Network (DLRCSPNN) framework. This framework employs DLRCSP for feature extraction and neural network (NN) algorithm for classification. Our developed method excluded channels with correlation coefficients below 0.5, retaining only significant, non-redundant channels and tested on three real-time EEG-based BCI datasets. This study produces the highest accuracy score in the case of every subjects above 90% for all the applied datasets. In the first dataset, our method achieved the highest accuracy, improving by 3.27% to 42.53% in terms of individual subject compared to seven existing machine learning algorithms. In the second and third dataset, it outperformed existing approaches, with accuracy gains of 5% to 45% and 1% to 17.47% respectively. Comparisons with a CSP and NN framework confirmed DLRCSPNN’s algorithms superior performance. These results demonstrate the effectiveness of the approach, offering a new perspective on the identification of MI task performance in EEG based BCI technology. This proposed technique will enable rapid identification of motor-disabled individuals’ intentions, supporting patient rehabilitation and improving daily living.
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- 43
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A novel channel reduction concept to enhance the classification of motor imagery tasks in brain-computer interface systemsWork title
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articleOpenAlex work type
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enPrimary language
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2025Year of publication
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2025-10-31Full publication date if available
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Taslima Khanam, Siuly Siuly, Kabir Ahmad, Hua WangList of authors in order
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https://doi.org/10.1371/journal.pone.0335511Publisher landing page
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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0Total citation count in OpenAlex
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43Number of works referenced by this work
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| publication_date | 2025-10-31 |
| publication_year | 2025 |
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| referenced_works_count | 43 |
| abstract_inverted_index.a | 4, 57, 79, 90, 210, 229 |
| abstract_inverted_index.1% | 204 |
| abstract_inverted_index.5% | 200 |
| abstract_inverted_index.In | 159, 186 |
| abstract_inverted_index.MI | 65, 236 |
| abstract_inverted_index.NN | 213 |
| abstract_inverted_index.To | 48 |
| abstract_inverted_index.by | 86, 170 |
| abstract_inverted_index.in | 7, 68, 146, 174, 239 |
| abstract_inverted_index.it | 192 |
| abstract_inverted_index.of | 24, 89, 149, 176, 199, 225, 235, 251 |
| abstract_inverted_index.on | 133, 232 |
| abstract_inverted_index.to | 31, 55, 62, 172, 180, 201, 205 |
| abstract_inverted_index.45% | 202 |
| abstract_inverted_index.90% | 153 |
| abstract_inverted_index.BCI | 69, 137, 242 |
| abstract_inverted_index.CSP | 211 |
| abstract_inverted_index.EEG | 25, 240 |
| abstract_inverted_index.Our | 71, 116 |
| abstract_inverted_index.all | 155 |
| abstract_inverted_index.and | 34, 44, 109, 131, 189, 203, 212, 258 |
| abstract_inverted_index.due | 30 |
| abstract_inverted_index.for | 14, 106, 114, 154 |
| abstract_inverted_index.new | 230 |
| abstract_inverted_index.our | 163 |
| abstract_inverted_index.the | 87, 142, 147, 156, 160, 166, 187, 223, 226, 233 |
| abstract_inverted_index.(MI) | 18 |
| abstract_inverted_index.(NN) | 112 |
| abstract_inverted_index.0.5, | 125 |
| abstract_inverted_index.Deep | 91 |
| abstract_inverted_index.This | 102, 139, 244 |
| abstract_inverted_index.aims | 54 |
| abstract_inverted_index.case | 148 |
| abstract_inverted_index.only | 127 |
| abstract_inverted_index.play | 3 |
| abstract_inverted_index.role | 6 |
| abstract_inverted_index.some | 28 |
| abstract_inverted_index.task | 66, 237 |
| abstract_inverted_index.this | 52 |
| abstract_inverted_index.will | 247 |
| abstract_inverted_index.with | 78, 97, 121, 196, 209 |
| abstract_inverted_index.(BCI) | 11 |
| abstract_inverted_index.(EEG) | 1 |
| abstract_inverted_index.3.27% | 171 |
| abstract_inverted_index.These | 220 |
| abstract_inverted_index.above | 152 |
| abstract_inverted_index.based | 241 |
| abstract_inverted_index.below | 124 |
| abstract_inverted_index.daily | 260 |
| abstract_inverted_index.every | 150 |
| abstract_inverted_index.faces | 27 |
| abstract_inverted_index.first | 161 |
| abstract_inverted_index.gains | 198 |
| abstract_inverted_index.large | 22 |
| abstract_inverted_index.motor | 16 |
| abstract_inverted_index.novel | 58 |
| abstract_inverted_index.rapid | 249 |
| abstract_inverted_index.score | 145 |
| abstract_inverted_index.seven | 181 |
| abstract_inverted_index.slows | 45 |
| abstract_inverted_index.study | 53, 140 |
| abstract_inverted_index.terms | 175 |
| abstract_inverted_index.these | 50 |
| abstract_inverted_index.third | 190 |
| abstract_inverted_index.three | 134 |
| abstract_inverted_index.which | 41 |
| abstract_inverted_index.17.47% | 206 |
| abstract_inverted_index.42.53% | 173 |
| abstract_inverted_index.Common | 94 |
| abstract_inverted_index.DLRCSP | 105 |
| abstract_inverted_index.Neural | 98 |
| abstract_inverted_index.enable | 248 |
| abstract_inverted_index.hybrid | 73 |
| abstract_inverted_index.method | 61, 118, 164 |
| abstract_inverted_index.neural | 110 |
| abstract_inverted_index.noise, | 40 |
| abstract_inverted_index.second | 188 |
| abstract_inverted_index.system | 46 |
| abstract_inverted_index.tested | 132 |
| abstract_inverted_index.volume | 23 |
| abstract_inverted_index.Network | 99 |
| abstract_inverted_index.Pattern | 96 |
| abstract_inverted_index.Spatial | 95 |
| abstract_inverted_index.address | 49 |
| abstract_inverted_index.applied | 157 |
| abstract_inverted_index.channel | 59, 82 |
| abstract_inverted_index.develop | 56 |
| abstract_inverted_index.employs | 104 |
| abstract_inverted_index.enhance | 63 |
| abstract_inverted_index.feature | 107 |
| abstract_inverted_index.highest | 143, 167 |
| abstract_inverted_index.imagery | 17 |
| abstract_inverted_index.issues, | 51 |
| abstract_inverted_index.living. | 261 |
| abstract_inverted_index.machine | 183 |
| abstract_inverted_index.network | 111 |
| abstract_inverted_index.patient | 256 |
| abstract_inverted_index.reduces | 42 |
| abstract_inverted_index.results | 221 |
| abstract_inverted_index.signals | 2 |
| abstract_inverted_index.subject | 178 |
| abstract_inverted_index.t-tests | 77 |
| abstract_inverted_index.However, | 20 |
| abstract_inverted_index.Learning | 92 |
| abstract_inverted_index.accuracy | 43, 144, 197 |
| abstract_inverted_index.achieved | 165 |
| abstract_inverted_index.approach | 74 |
| abstract_inverted_index.channels | 38, 120, 130 |
| abstract_inverted_index.combines | 75 |
| abstract_inverted_index.compared | 179 |
| abstract_inverted_index.critical | 5 |
| abstract_inverted_index.dataset, | 162, 191 |
| abstract_inverted_index.datasets | 26 |
| abstract_inverted_index.excluded | 119 |
| abstract_inverted_index.existing | 182, 194 |
| abstract_inverted_index.followed | 85 |
| abstract_inverted_index.learning | 184 |
| abstract_inverted_index.offering | 228 |
| abstract_inverted_index.produces | 141 |
| abstract_inverted_index.proposed | 72, 245 |
| abstract_inverted_index.subjects | 151 |
| abstract_inverted_index.superior | 218 |
| abstract_inverted_index.systems, | 12 |
| abstract_inverted_index.EEG-based | 64, 136 |
| abstract_inverted_index.accuracy, | 168 |
| abstract_inverted_index.advancing | 8 |
| abstract_inverted_index.algorithm | 113 |
| abstract_inverted_index.analysing | 21 |
| abstract_inverted_index.approach, | 227 |
| abstract_inverted_index.confirmed | 215 |
| abstract_inverted_index.datasets. | 138, 158 |
| abstract_inverted_index.detecting | 15 |
| abstract_inverted_index.developed | 117 |
| abstract_inverted_index.framework | 103, 214 |
| abstract_inverted_index.improving | 169, 259 |
| abstract_inverted_index.interface | 10 |
| abstract_inverted_index.introduce | 39 |
| abstract_inverted_index.real-time | 135 |
| abstract_inverted_index.reduction | 83 |
| abstract_inverted_index.redundant | 32 |
| abstract_inverted_index.retaining | 126 |
| abstract_inverted_index.selection | 60 |
| abstract_inverted_index.technique | 246 |
| abstract_inverted_index.(DLRCSPNN) | 100 |
| abstract_inverted_index.Bonferroni | 80 |
| abstract_inverted_index.Irrelevant | 37 |
| abstract_inverted_index.algorithms | 217 |
| abstract_inverted_index.challenges | 29 |
| abstract_inverted_index.extraction | 108 |
| abstract_inverted_index.framework. | 101 |
| abstract_inverted_index.individual | 177 |
| abstract_inverted_index.movements. | 19 |
| abstract_inverted_index.supporting | 255 |
| abstract_inverted_index.technique, | 84 |
| abstract_inverted_index.Comparisons | 208 |
| abstract_inverted_index.Regularized | 93 |
| abstract_inverted_index.algorithms. | 185 |
| abstract_inverted_index.application | 88 |
| abstract_inverted_index.approaches, | 195 |
| abstract_inverted_index.correlation | 122 |
| abstract_inverted_index.demonstrate | 222 |
| abstract_inverted_index.intentions, | 254 |
| abstract_inverted_index.performance | 35, 67, 238 |
| abstract_inverted_index.perspective | 231 |
| abstract_inverted_index.statistical | 76 |
| abstract_inverted_index.technology. | 243 |
| abstract_inverted_index.DLRCSPNN’s | 216 |
| abstract_inverted_index.coefficients | 123 |
| abstract_inverted_index.degradation. | 36 |
| abstract_inverted_index.information, | 33 |
| abstract_inverted_index.outperformed | 193 |
| abstract_inverted_index.particularly | 13 |
| abstract_inverted_index.performance. | 47, 219 |
| abstract_inverted_index.significant, | 128 |
| abstract_inverted_index.applications. | 70 |
| abstract_inverted_index.effectiveness | 224 |
| abstract_inverted_index.non-redundant | 129 |
| abstract_inverted_index.respectively. | 207 |
| abstract_inverted_index.brain-computer | 9 |
| abstract_inverted_index.identification | 234, 250 |
| abstract_inverted_index.individuals’ | 253 |
| abstract_inverted_index.motor-disabled | 252 |
| abstract_inverted_index.rehabilitation | 257 |
| abstract_inverted_index.classification. | 115 |
| abstract_inverted_index.correction-based | 81 |
| abstract_inverted_index.Electroencephalogram | 0 |
| cited_by_percentile_year | |
| corresponding_author_ids | https://openalex.org/A5057305454, https://openalex.org/A5100403969, https://openalex.org/A5081589254, https://openalex.org/A5029265091 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 4 |
| corresponding_institution_ids | https://openalex.org/I132157203, https://openalex.org/I71270174 |
| citation_normalized_percentile |