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Different pattern: a new EEG-based method for mental performance detection.

Code ↔ Paper

6 matches between paragraphs of the paper and lines of its authors' code, computed by the harvester (lexical-v1). Click a colored paragraph or line to see its counterpart.

The 6 matches
  1. [1] § Experimental results › Explainable results ↔ main.m, lines 140–180 · score 0.69 · DLob symbols, TL, TR, PL, PR, CL
  2. [2] § Experimental results › Experimental setup ↔ main.m, lines 223–292 · score 0.63 · cortical connectome, DLob sentence, DLob symbols, entropy, histogram, transition
  3. [3] § Discussions › External dataset validation ↔ main.m, lines 1–49 · score 0.60 · driven XFE model, EEG signal, DiffPat, detection, mental
  4. [4] § Experimental results › Explainable results ↔ main.m, lines 223–292 · score 0.59 · cortical connectome, DLob sentence, DLob symbol, histogram
  5. [5] § The presented DiffPat-driven XFE model › Overall pipeline overview ↔ ten_cv_inca.m, lines 114–157 · score 0.51 · iterative feature selection, feature weighting, nested, training, INCA, fold
  6. [6] § The presented DiffPat-driven XFE model › Overall pipeline overview ↔ loso_cv_inca.m, lines 62–113 · score 0.50 · iterative feature selection, feature weighting, LOSO, training, INCA, fold

Paper

Loaded from Europe PMC by your browser, not stored by OSCR: doi.org · Europe PMC

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The authors' code

MATLAB · 292 lines · 11 KB · MIT · 4 matches

  1. % =========================================================================
  2. % Main Script: DiffPat-driven XFE Model for Mental Performance Detection
  3. % =========================================================================
  4. % "Different Pattern: A new mental performance detection using EEG signal"
  5. %
  6. % Referans:
  7. % Ince et al., "Different Pattern: A new mental performance detection
  8. % using EEG signal", 2026.
  9. % =========================================================================
  10. clc; clear; close all;
  11. fprintf('==========================================================\n');
  12. fprintf(' DiffPat-driven XFE Model - Mental Performance Detection\n');
  13. fprintf('==========================================================\n\n');
  14. % =====================================================================
  15. % 1. VERI YUKLEME
  16. % =====================================================================
  17. data_file = 'EEG_mental_performance.mat'; % <-- Veri dosyanizin adi
  18. if ~exist(data_file, 'file')
  19. error(['Veri dosyasi bulunamadi: %s\n' ...
  20. 'Lutfen veri dosyanizin yolunu data_file degiskeninde belirtin.\n' ...
  21. 'Beklenen degiskenler: data (cell/3D), labels (Nx1), subjects (Nx1)'], ...
  22. data_file);
  23. end
  24. fprintf('Veri yukleniyor: %s\n', data_file);
  25. loaded = load(data_file);
  26. if isfield(loaded, 'data') && isfield(loaded, 'labels') && isfield(loaded, 'subjects')
  27. raw_data = loaded.data;
  28. labels = loaded.labels(:);
  29. subject_ids = loaded.subjects(:);
  30. elseif isfield(loaded, 'X') && isfield(loaded, 'y') && isfield(loaded, 'subject_ids')
  31. fprintf('Hazir ozellik matrisi bulundu, DiffPat cikarimi atlanacak.\n');
  32. X = loaded.X;
  33. y = loaded.y(:);
  34. subject_ids = loaded.subject_ids(:);
  35. raw_data = [];
  36. labels = y;
  37. else
  38. error(['Veri dosyasinda beklenen degiskenler bulunamadi.\n' ...
  39. 'Beklenen: (data, labels, subjects) veya (X, y, subject_ids)']);
  40. end
  41. % =====================================================================
  42. % 2. DIFFPAT OZELLIK CIKARIMI
  43. % =====================================================================
  44. if ~isempty(raw_data)
  45. fprintf('\n--- DiffPat Ozellik Cikarimi ---\n');
  46. if iscell(raw_data)
  47. num_segments = length(raw_data);
  48. [~, num_channels] = size(raw_data{1});
  49. if size(raw_data{1}, 1) < size(raw_data{1}, 2)
  50. num_channels = size(raw_data{1}, 1);
  51. end
  52. elseif ndims(raw_data) == 3
  53. [~, num_channels, num_segments] = size(raw_data);
  54. else
  55. error('Veri formati desteklenmiyor. Cell array veya 3D matris olmali.');
  56. end
  57. num_features = num_channels^2;
  58. X = zeros(num_segments, num_features);
  59. y = labels;
  60. fprintf('Segment sayisi: %d | Kanal sayisi: %d | Ozellik sayisi: %d\n', ...
  61. num_segments, num_channels, num_features);
  62. feature_time = tic;
  63. for seg = 1:num_segments
  64. if iscell(raw_data)
  65. eeg_segment = raw_data{seg};
  66. else
  67. eeg_segment = raw_data(:, :, seg);
  68. end
  69. X(seg, :) = diffpat(eeg_segment);
  70. if mod(seg, 500) == 0
  71. fprintf(' Islem: %d / %d segment tamamlandi...\n', seg, num_segments);
  72. end
  73. end
  74. feat_elapsed = toc(feature_time);
  75. fprintf('DiffPat ozellik cikarimi tamamlandi: %.2f saniye\n', feat_elapsed);
  76. fprintf('Ozellik matrisi boyutu: %d x %d\n', size(X,1), size(X,2));
  77. end
  78. % =====================================================================
  79. % 3. VERI OZETI
  80. % =====================================================================
  81. fprintf('\n--- Veri Seti Ozeti ---\n');
  82. unique_labels = unique(y);
  83. num_subjects = length(unique(subject_ids));
  84. fprintf('Toplam segment: %d\n', length(y));
  85. fprintf('Toplam birey: %d\n', num_subjects);
  86. for lbl = 1:length(unique_labels)
  87. fprintf(' Class %d: %d segment\n', unique_labels(lbl), sum(y == unique_labels(lbl)));
  88. end
  89. % =====================================================================
  90. % 4. SINIFLANDIRMA: LOSO CV (Birincil Degerlendirme)
  91. % =====================================================================
  92. fprintf('\n');
  93. fprintf('==========================================================\n');
  94. fprintf(' LOSO Cross-Validation (Birincil Metrik)\n');
  95. fprintf('==========================================================\n');
  96. [loso_acc, loso_cm, loso_subj_results, loso_feat_info] = ...
  97. loso_cv_inca(X, y, subject_ids);
  98. % =====================================================================
  99. % 5. SINIFLANDIRMA: 10-Fold Subject-Aware CV (Tamamlayici Metrik)
  100. % =====================================================================
  101. fprintf('\n');
  102. fprintf('==========================================================\n');
  103. fprintf(' 10-Fold Subject-Aware Cross-Validation\n');
  104. fprintf('==========================================================\n');
  105. [tenfold_acc, tenfold_cm, tenfold_results, tenfold_feat_info] = ...
  106. ten_cv_inca(X, y, subject_ids);
  107. % =====================================================================
  108. % 6. DLOB-TABANLI XAI SONUCLARI
  109. % =====================================================================
  110. fprintf('\n');
  111. fprintf('==========================================================\n');
  112. fprintf(' DLob-tabanli Aciklanabilir Sonuclar (XAI)\n');
  113. fprintf('==========================================================\n');
  114. % DLob Look-Up Table (LUT): 32 kanal -> 14 DLob sembol
  115. % Emotiv Flex 32-kanal montaji icin kanal-sembol eslestirmesi
  116. % Semboller: FL, FR, CL, CR, TL, TR, PL, PR, OL, OR, Cz, Oz, Pz, Fz
  117. channel_names = {'Fp1','Fp2','F3','F4','F7','F8','FC1','FC2', ...
  118. 'FC5','FC6','C3','C4','T7','T8','CP1','CP2', ...
  119. 'CP5','CP6','P3','P4','P7','P8','PO3','PO4', ...
  120. 'O1','O2','Fz','Cz','Pz','Oz','AF3','AF4'};
  121. % LUT: Her kanal icin DLob sembol indeksi (1-14)
  122. % 1:FL, 2:FR, 3:CL, 4:CR, 5:TL, 6:TR, 7:PL, 8:PR,
  123. % 9:OL, 10:OR, 11:Cz, 12:Oz, 13:Pz, 14:Fz
  124. dlob_symbols = {'FL','FR','CL','CR','TL','TR','PL','PR', ...
  125. 'OL','OR','Cz','Oz','Pz','Fz'};
  126. % Kanal -> DLob sembol eslestirmesi
  127. % Fp1->FL, Fp2->FR, F3->FL, F4->FR, F7->FL, F8->FR, FC1->CL, FC2->CR
  128. % FC5->CL, FC6->CR, C3->CL, C4->CR, T7->TL, T8->TR, CP1->PL, CP2->PR
  129. % CP5->PL, CP6->PR, P3->PL, P4->PR, P7->PL, P8->PR, PO3->OL, PO4->OR
  130. % O1->OL, O2->OR, Fz->Fz, Cz->Cz, Pz->Pz, Oz->Oz, AF3->FL, AF4->FR
  131. LUT = [1, 2, 1, 2, 1, 2, 3, 4, ... % Fp1,Fp2,F3,F4,F7,F8,FC1,FC2
  132. 3, 4, 3, 4, 5, 6, 7, 8, ... % FC5,FC6,C3,C4,T7,T8,CP1,CP2
  133. 7, 8, 7, 8, 7, 8, 9, 10, ... % CP5,CP6,P3,P4,P7,P8,PO3,PO4
  134. 9, 10, 14, 11, 13, 12, 1, 2]; % O1,O2,Fz,Cz,Pz,Oz,AF3,AF4
  135. num_channels = 32;
  136. % LOSO CV sonuclarindan secilen feature indekslerini topla
  137. % (tum fold'lardan ortak secilen feature'lari analiz et)
  138. all_selected_features = [];
  139. for i = 1:length(loso_feat_info)
  140. all_selected_features = [all_selected_features; ...
  141. loso_feat_info(i).feature_indices(:)];
  142. end
  143. % En sik secilen feature'lari bul
  144. [unique_feats, ~, ic] = unique(all_selected_features);
  145. feat_counts = accumarray(ic, 1);
  146. [~, sort_idx] = sort(feat_counts, 'descend');
  147. % En onemli feature'larin kanal bilgilerini cikar (Eq. 16-20)
  148. fprintf('\n--- Secilen Feature''larin Kanal Analizi ---\n');
  149. fprintf('Toplam benzersiz secilen feature: %d\n', length(unique_feats));
  150. % DLob cumlesi olustur
  151. DS = {};
  152. for k = 1:min(201, length(sort_idx)) % Makaleye gore 201 feature
  153. feat_idx = unique_feats(sort_idx(k));
  154. % Eq. 17: Satir kanali (1-indexed)
  155. chan1 = floor((feat_idx - 1) / num_channels) + 1;
  156. chan1 = mod(chan1 - 1, num_channels) + 1;
  157. % Eq. 18: Sutun kanali (1-indexed)
  158. chan2 = mod(feat_idx - 1, num_channels) + 1;
  159. % Eq. 19-20: DLob sembollerine donustur
  160. DS{end+1} = dlob_symbols{LUT(chan1)};
  161. DS{end+1} = dlob_symbols{LUT(chan2)};
  162. end
  163. % DLob cumlesi
  164. dlob_sentence = strjoin(DS, ' ');
  165. fprintf('\nDLob Cumlesi (ilk 50 sembol):\n');
  166. disp(strjoin(DS(1:min(50, length(DS))), ' '));
  167. % DLob histogram
  168. fprintf('\n--- DLob Sembol Histogrami ---\n');
  169. symbol_counts = zeros(1, length(dlob_symbols));
  170. for s = 1:length(DS)
  171. for sym = 1:length(dlob_symbols)
  172. if strcmp(DS{s}, dlob_symbols{sym})
  173. symbol_counts(sym) = symbol_counts(sym) + 1;
  174. break;
  175. end
  176. end
  177. end
  178. for sym = 1:length(dlob_symbols)
  179. if symbol_counts(sym) > 0
  180. fprintf(' %-4s: %d (%.2f%%)\n', dlob_symbols{sym}, ...
  181. symbol_counts(sym), symbol_counts(sym)/length(DS)*100);
  182. end
  183. end
  184. % Bilgi entropisi
  185. probs = symbol_counts / sum(symbol_counts);
  186. probs = probs(probs > 0); % Sifir olasiliklari cikar
  187. info_entropy = -sum(probs .* log2(probs));
  188. max_entropy = log2(length(dlob_symbols));
  189. complexity_ratio = info_entropy / max_entropy * 100;
  190. fprintf('\nBilgi Entropisi: %.4f bit\n', info_entropy);
  191. fprintf('Maksimum Entropi: %.4f bit (log2(%d))\n', max_entropy, length(dlob_symbols));
  192. fprintf('Karmasiklik Orani: %.2f%%\n', complexity_ratio);
  193. % Cortical connectome (transition table)
  194. fprintf('\n--- Cortical Connectome Transition Table ---\n');
  195. connectome = zeros(length(dlob_symbols));
  196. for s = 1:length(DS)-1
  197. from_idx = find(strcmp(dlob_symbols, DS{s}));
  198. to_idx = find(strcmp(dlob_symbols, DS{s+1}));
  199. if ~isempty(from_idx) && ~isempty(to_idx)
  200. connectome(from_idx, to_idx) = connectome(from_idx, to_idx) + 1;
  201. end
  202. end
  203. fprintf(' ');
  204. for sym = 1:length(dlob_symbols)
  205. fprintf('%-5s', dlob_symbols{sym});
  206. end
  207. fprintf('\n');
  208. for i = 1:length(dlob_symbols)
  209. fprintf('%-5s: ', dlob_symbols{i});
  210. for j = 1:length(dlob_symbols)
  211. fprintf('%-5d', connectome(i,j));
  212. end
  213. fprintf('\n');
  214. end
  215. % =====================================================================
  216. % 7. SONUC OZETI
  217. % =====================================================================
  218. fprintf('\n');
  219. fprintf('==========================================================\n');
  220. fprintf(' GENEL SONUC OZETI\n');
  221. fprintf('==========================================================\n');
  222. fprintf('LOSO CV Dogruluk (Birincil): %.2f%%\n', loso_acc);
  223. fprintf('10-Fold CV Dogruluk: %.2f%%\n', tenfold_acc);
  224. fprintf('DLob Bilgi Entropisi: %.4f bit\n', info_entropy);
  225. fprintf('DLob Karmasiklik Orani: %.2f%%\n', complexity_ratio);
  226. fprintf('==========================================================\n');
  227. % =====================================================================
  228. % 8. SONUCLARI KAYDET
  229. % =====================================================================
  230. results.loso_accuracy = loso_acc;
  231. results.loso_cm = loso_cm;
  232. results.loso_subject_results = loso_subj_results;
  233. results.loso_feature_info = loso_feat_info;
  234. results.tenfold_accuracy = tenfold_acc;
  235. results.tenfold_cm = tenfold_cm;
  236. results.tenfold_results = tenfold_results;
  237. results.tenfold_feature_info = tenfold_feat_info;
  238. results.dlob_sentence = dlob_sentence;
  239. results.dlob_histogram = symbol_counts;
  240. results.dlob_entropy = info_entropy;
  241. results.connectome = connectome;
  242. results.feature_matrix = X;
  243. results.labels = y;
  244. results.subject_ids = subject_ids;
  245. save('DiffPat_XFE_results.mat', 'results', '-v7.3');
  246. fprintf('\nSonuclar kaydedildi: DiffPat_XFE_results.mat\n');
  247. fprintf('==========================================================\n');

main.m at commit b00514d, under MIT · at the source

Overview

Authors: Ugur Ince1, Serkan Kirik2, Irem Tasci3, Prabal Datta Barua4, Mehmet Baygin5, Burak Tasci6, Sengul Dogan1, Turker Tuncer1
  1. Department of Digital Forensics Engineering, College of Technology, Firat University,Elazig, 23119 Türkiye
  2. Department of Pediatrics, Division of Pediatric Neurology, Fethi Sekin City Hospital, Elazig, 23280 Türkiye
  3. Department of Neurology, School of Medicine, Firat University,Elazig, Türkiye
  4. School of Business (Information System), University of Southern Queensland,Springfield, QLD 4350 Australia
  5. Department of Computer Engineering, Faculty of Engineering, Erzurum Technical University,Erzurum, Türkiye
  6. Vocational School of Technical Sciences, Firat University,Elazig, Türkiye
Institutions: Fırat University (Türkiye); University of Southern Queensland (Australia); Erzurum Technical University (Türkiye)
Journal: BMC medical informatics and decision making, volume 26, issue 1, article 290
Dates: received 17 March 2026; accepted 20 May 2026; published online 29 May 2026
Type: Research article · Language: English
License: CC BY-NC-ND
Identifiers: DOI 10.1186/s12911-026-03591-1 · PMID 42216207 · PMCID PMC13440034 · OpenAlex W7162785306
Open access: gold, a free copy (OpenAlex)
Status: code verified
Categories: EEG (modality), human (organism), methods / tools (subfield)
Methods: Preprocessing
Keywords: Different Pattern, Directed Lobish, XFE, EEG signal classification, Neuroscience
MeSH: Electroencephalography*, Algorithms, Humans (* major topic)
Topic: EEG and Brain-Computer Interfaces (Cognitive Neuroscience, Neuroscience), according to OpenAlex
Citations: not cited yet (Europe PMC); 54 references in the paper

Abstract

The abstract is not reproduced here: the paper's license (CC BY-NC-ND) does not allow it. Read it in the paper, at the publisher or on Europe PMC.

Repository

Its files are read in the Code ↔ Paper reader above, with 6 matches between paragraphs and lines of code.

mhmtbygn/Mental_Perfomance_Classification

License: MIT
State: the link answers, verified on 28 September 2026
Evidence: files inventoried
Commit: b00514df76e1e0fef4297c7234b0c8d3579fff7b, 7 April 2026
Languages: MATLAB (4)
Size: 5 files, 4 scripts
Software Heritage: not archived
Found in: the text, “Experimental setup”
Holds: README
Not found: license file, CITATION.cff, environment file, tests, continuous integration, documentation
Availability: 1 check, the latest on 28 September 2026: the link answers
  • 28 September 2026: the link answers
5 files

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  • 6 matches between paragraphs of the paper and lines of the code (method lexical-v1);
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Its JSON (tracing-map.json) is deposited on Zenodo with its DOI once the map is validated.

Data

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Data availability statement

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Read it in the paper: doi.org/10.1186/s12911-026-03591-1.

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Version 2, 28 September 2026

  • Funding: added Türkiye Bilimsel ve Teknolojik Araştırma Kurumu: 123E357

Version 1, 28 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 8 authors, 5 keywords, 3 MeSH terms, 47 references.

Cite

This paper

Ince, U., Kirik, S., Tasci, I., Barua, P. D., Baygin, M., Tasci, B., Dogan, S., & Tuncer, T. (2026). Different pattern: a new EEG-based method for mental performance detection. BMC medical informatics and decision making, 26(1), 290. https://doi.org/10.1186/s12911-026-03591-1

BibTeX

@article{ince2026different,
author = {Ince, Ugur and Kirik, Serkan and Tasci, Irem and Barua, Prabal Datta and Baygin, Mehmet and Tasci, Burak and Dogan, Sengul and Tuncer, Turker},
title = {{Different pattern: a new EEG-based method for mental performance detection}},
journal = {BMC medical informatics and decision making},
year = {2026},
month = may,
volume = {26},
number = {1},
pages = {290},
publisher = {BMC},
issn = {1472-6947},
doi = {10.1186/s12911-026-03591-1},
url = {https://doi.org/10.1186/s12911-026-03591-1},
pmid = {42216207},
pmcid = {PMC13440034}
}

RIS

TY - JOUR
AU - Ince, Ugur
AU - Kirik, Serkan
AU - Tasci, Irem
AU - Barua, Prabal Datta
AU - Baygin, Mehmet
AU - Tasci, Burak
AU - Dogan, Sengul
AU - Tuncer, Turker
TI - Different pattern: a new EEG-based method for mental performance detection
T2 - BMC medical informatics and decision making
J2 - BMC Med Inform Decis Mak
PY - 2026
DA - 2026/05/29
VL - 26
IS - 1
SP - 290
SN - 1472-6947
PB - BMC
DO - 10.1186/s12911-026-03591-1
UR - https://doi.org/10.1186/s12911-026-03591-1
LA - en
ER -

CSL-JSON

{
"id": "10.1186/s12911-026-03591-1",
"type": "article-journal",
"title": "Different pattern: a new EEG-based method for mental performance detection",
"container-title": "BMC medical informatics and decision making",
"author": [
{
"family": "Ince",
"given": "Ugur"
},
{
"family": "Kirik",
"given": "Serkan"
},
{
"family": "Tasci",
"given": "Irem"
},
{
"family": "Barua",
"given": "Prabal Datta"
},
{
"family": "Baygin",
"given": "Mehmet"
},
{
"family": "Tasci",
"given": "Burak"
},
{
"family": "Dogan",
"given": "Sengul"
},
{
"family": "Tuncer",
"given": "Turker"
}
],
"container-title-short": "BMC Med Inform Decis Mak",
"volume": "26",
"issue": "1",
"page": "290",
"DOI": "10.1186/s12911-026-03591-1",
"PMID": "42216207",
"PMCID": "PMC13440034",
"ISSN": "1472-6947",
"publisher": "BMC",
"URL": "https://doi.org/10.1186/s12911-026-03591-1",
"language": "en",
"issued": {
"date-parts": [
[
2026,
5,
29
]
]
}
}

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