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Application of artificial intelligence in cognitive load analysis using functional near-infrared spectroscopy: A systematic review

journal contribution
posted on 2024-04-18, 04:19 authored by MA Khan, Houshyar AsadiHoushyar Asadi, L Zhang, MRC Qazani, S Oladazimi, CK Loo, Chee Peng LimChee Peng Lim, S Nahavandi
Cognitive load theory suggests that overloading of working memory may negatively affect the performance of human in cognitively demanding tasks. Evaluation of cognitive load is a difficult task; it is often assessed through feedback and evaluation from experts. Cognitive load classification based on Functional Near-InfraRed Spectroscopy (fNIRS) is now one of the key research areas in recent years, due to its resistance of artefacts, cost-effectiveness, and portability. To make fNIRS more practical in various applications, it is necessary to develop robust algorithms that can automatically classify fNIRS signals and less reliant on trained signals. Many of the analytical tools used in cognitive sciences have used Deep Learning (DL) modalities to uncover relevant information for mental workload classification. This review investigates the research questions on the design and overall effectiveness of DL as well as its key characteristics. We have identified 45 studies published between 2011 and 2023, that specifically proposed Machine Learning (ML) models for classifying cognitive load using data obtained from fNIRS devices. Those studies were analyzed based on type of feature selection methods, input, and DL model architectures. Most of the existing cognitive load studies are based on ML algorithms, which follow signal filtration and hand-crafted features. It is observed that hybrid DL architectures that integrate convolution and LSTM operators performed significantly better in comparison with other models. However, DL models especially hybrid models have not been extensively investigated for the classification of cognitive load captured by fNIRS devices. The current trends and challenges are highlighted to provide directions for the development of DL models pertaining to fNIRS research.

History

Journal

Expert Systems With Applications

Volume

249

Article number

123717

Pagination

1-24

Location

Amsterdam, The Netherlands

ISSN

0957-4174

eISSN

1873-6793

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Issue

Part C

Publisher

Elsevier

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