Understanding Learning from EEG Data: Combining Machine Learning and Feature Engineering Based on Hidden Markov Models and Mixed Models.

Deep learning EEG data Hidden Markov models Machine learning Time series

Journal

Neuroinformatics
ISSN: 1559-0089
Titre abrégé: Neuroinformatics
Pays: United States
ID NLM: 101142069

Informations de publication

Date de publication:
10 Sep 2024
Historique:
accepted: 29 08 2024
medline: 10 9 2024
pubmed: 10 9 2024
entrez: 10 9 2024
Statut: aheadofprint

Résumé

Theta oscillations, ranging from 4-8 Hz, play a significant role in spatial learning and memory functions during navigation tasks. Frontal theta oscillations are thought to play an important role in spatial navigation and memory. Electroencephalography (EEG) datasets are very complex, making any changes in the neural signal related to behaviour difficult to interpret. However, multiple analytical methods are available to examine complex data structures, especially machine learning-based techniques. These methods have shown high classification performance, and their combination with feature engineering enhances their capability. This paper proposes using hidden Markov and linear mixed effects models to extract features from EEG data. Based on the engineered features obtained from frontal theta EEG data during a spatial navigation task in two key trials (first, last) and between two conditions (learner and non-learner), we analysed the performance of six machine learning methods on classifying learner and non-learner participants. We also analysed how different standardisation methods used to pre-process the EEG data contribute to classification performance. We compared the classification performance of each trial with data gathered from the same subjects, including solely coordinate-based features, such as idle time and average speed. We found that more machine learning methods perform better classification using coordinate-based data. However, only deep neural networks achieved an area under the ROC curve higher than 80% using the theta EEG data alone. Our findings suggest that standardising the theta EEG data and using deep neural networks enhances the classification of learner and non-learner subjects in a spatial learning task.

Identifiants

pubmed: 39254794
doi: 10.1007/s12021-024-09690-6
pii: 10.1007/s12021-024-09690-6
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : Science Foundation Ireland
ID : 18/CRT/6049
Pays : Ireland

Informations de copyright

© 2024. The Author(s).

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Auteurs

Gabriel R Palma (GR)

Hamilton Institute, Maynooth University, Maynooth, Ireland. gabriel.palma.2022@mumail.ie.
Department of Mathematics and Statistics, Maynooth University, Maynooth, Ireland. gabriel.palma.2022@mumail.ie.

Conor Thornberry (C)

Department of Psychology, National College of Ireland, Dublin, Ireland.

Seán Commins (S)

Department of Psychology, Maynooth University, Maynooth, Ireland.

Rafael A Moral (RA)

Hamilton Institute, Maynooth University, Maynooth, Ireland.
Department of Mathematics and Statistics, Maynooth University, Maynooth, Ireland.

Classifications MeSH