Abstract
The brain–computer interface (BCI) is an emerging technology that has the potential to revolutionize the world, with numerous applications ranging from healthcare to human augmentation. Electroencephalogram (EEG) motor imagery (MI) is among the most common BCI paradigms that have been used extensively in smart healthcare applications such as post-stroke rehabilitation and mobile assistive robots. In recent years, the contribution of deep learning (DL) has had a phenomenal impact on MI-EEG-based BCI. In this work, we systematically review the DL-based research for MI-EEG classification from the past ten years. This article first explains the procedure for selecting the studies and then gives an overview of BCI, EEG, and MI systems. The DL-based techniques applied in MI classification are then analyzed and discussed from four main perspectives: preprocessing, input formulation, deep learning architecture, and performance evaluation. In the discussion section, three major questions about DL-based MI classification are addressed: (1) Is preprocessing required for DL-based techniques? (2) What input formulations are best for DL-based techniques? (3) What are the current trends in DL-based techniques? Moreover, this work summarizes MI-EEG-based applications, extensively explores public MI-EEG datasets, and gives an overall visualization of the performance attained for each dataset based on the reviewed articles. Finally, current challenges and future directions are discussed.

















Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.References
Alshehri F, Muhammad G (2021) A comprehensive survey of the Internet of Things (IoT) and AI-based smart healthcare. IEEE Access 9:3660–3678
Masud M, Gaba GS, Alqahtani S, Muhammad G, Gupta BB, Kumar P, Ghoneim A (2020) A lightweight and robust secure key establishment protocol for internet of medical things in COVID-19 patients care. IEEE Inter Things J
Muhammad G, Alshehri F, Karray F, El Saddik A., Alsulaiman M, Falk TH (2021). A comprehensive survey on multimodal medical signals fusion for smart healthcare systems. Inf Fusion 76:355–375
Cantillo-Negrete J, Carino-Escobar RI, Carrillo-Mora P, Elias-Vinas D, Gutierrez-Martinez J (2018) Motor imagery-based brain-computer interface coupled to a robotic hand orthosis aimed for neurorehabilitation of stroke patients. J Healthc Eng 2018:1–10
López-Larraz E, Sarasola-Sanz A, Irastorza-Landa N, Birbaumer N, Ramos-Murguialday A (2018) Brain-machine interfaces for rehabilitation in stroke: a review. NeuroRehabilitation 43(1):77–97
Al-Quraishi MS, Elamvazuthi I, Daud SA, Parasuraman S, Borboni A (2018) EEG-based control for upper and lower limb exoskeletons and prostheses: a systematic review. Sensors 18(10):3342
Tayeb Z et al (2019) Validating deep neural networks for online decoding of motor imagery movements from EEG signals. Sensors 19(1):210
Fernández-Rodríguez Á, Velasco-Álvarez F, Ron-Angevin R (2016) Review of real brain-controlled wheelchairs. J Neural Eng 13(6):61001
Tang X, Li W, Li X, Ma W, Dang X (2020) Motor imagery EEG recognition based on conditional optimization empirical mode decomposition and multi-scale convolutional neural network. Expert Syst Appl 149:113285
Li J, Liang J, Zhao Q, Li J, Hong K, Zhang L (2013) Design of assistive wheelchair system directly steered by human thoughts. Int J Neural Syst 23(03):1350013
Cao L, Xia B, Maysam O, Li J, Xie H, Birbaumer N (2017) A synchronous motor imagery based neural physiological paradigm for brain computer interface speller. Front Hum Neurosci 11:274
Das Chakladar D, Chakraborty S (2018) Multi-target way of cursor movement in brain computer interface using unsupervised learning. Biol Inspired Cogn Archit 25:88–100
Delorme A, Sejnowski T, Makeig S (2007) Enhanced detection of artifacts in EEG data using higher-order statistics and independent component analysis. Neuroimage 34(4):1443–1449
Jafarifarmand A, Badamchizadeh MA (2019) EEG artifacts handling in a real practical brain–computer interface controlled vehicle. IEEE Trans Neural Syst Rehabil Eng 27(6):1200–1208
Pawar D, Dhage S (2020) Feature extraction methods for electroencephalography based brain-computer interface: a review. IAENG Int J Comput Sci 47(3)
Djamal EC, Abdullah MY, Renaldi F (2017) Brain computer interface game controlling using fast fourier transform and learning vector quantization. J Telecommun Electron Comput Eng 9(2–5):71–74
Kousarrizi MRN, Ghanbari AA, Teshnehlab M, Shorehdeli MA, Gharaviri A (2009) Feature extraction and classification of EEG signals using Wavelet transform, SVM and artificial neural networks for brain computer interfaces. In: 2009 international joint conference on bioinformatics, systems biology and intelligent computing, pp 352–355
Wang L, Lan Z, Wang Q, Yang R, Li H (2019) ELM_Kernel and Wavelet packet decomposition based EEG classification algorithm. Autom Control Comput Sci 53(5):452–460
Ramoser H, Muller-Gerking J, Pfurtscheller G (2000) Optimal spatial filtering of single trial EEG during imagined hand movement. IEEE Trans Rehabil Eng 8(4):441–446
Zhang L, Wen D, Li C, Zhu R (2020) Ensemble classifier based on optimized extreme learning machine for motor imagery classification. J Neural Eng 17(2):26004
Wang K, Zhai DH, Xia Y (2019) Motor imagination EEG recognition algorithm based on DWT, CSP and extreme learning machine. In: 2019 Chinese control conference (CCC), pp 4590–4595
Jin Z, Zhou G, Gao D, Zhang Y (2018) EEG classification using sparse Bayesian extreme learning machine for brain–computer interface. Neural Comput Appl 32:1–9
Ang KK, Chin ZY, Wang C, Guan C, Zhang H (2012) Filter bank common spatial pattern algorithm on BCI competition IV datasets 2a and 2b. Front Neurosci 6:39
Chen CY, Wu CW, Lin CT, Chen SA (2014) A novel classification method for motor imagery based on brain-computer interface. In: 2014 International joint conference on neural networks (IJCNN), pp 4099–4102
Arvaneh M, Guan C, Ang KK, Quek C (2011) Optimizing the channel selection and classification accuracy in EEG-based BCI. IEEE Trans Biomed Eng 58(6):1865–1873
Samek W, Vidaurre C, Müller K-R, Kawanabe M (2012) Stationary common spatial patterns for brain–computer interfacing. J Neural Eng 9(2):26013
Samek W, Kawanabe M, Müller K-R (2013) Divergence-based framework for common spatial patterns algorithms. IEEE Rev Biomed Eng 7:50–72
Wu W, Chen Z, Gao X, Li Y, Brown EN, Gao S (2014) Probabilistic common spatial patterns for multichannel EEG analysis. IEEE Trans Pattern Anal Mach Intell 37(3):639–653
Rashid M et al (2020) Current status, challenges, and possible solutions of EEG-based brain-computer interface: a comprehensive review. Front Neurorobot 14:25
Zhang X, Yao L, Wang X, Monaghan JJM, Mcalpine D, Zhang Y (2020) A survey on deep learning-based non-invasive brain signals: recent advances and new frontiers. J Neural Eng 18:031002
Altaheri H, Alsulaiman M, Muhammad G (2019) Date Fruit classification for robotic harvesting in a natural environment using deep learning. IEEE Access 7(1):117115–117133
Qamhan M, Altaheri H, Meftah AH, Muhammad G, Alotaibi YA (2021) Digital audio forensics: microphone and environment classification using deep learning. IEEE Access 9:62719–62733
Muhammad G, Hossain MS, Kumar N (2020) EEG-based pathology detection for home health monitoring. IEEE J Sel Areas Commun 39(2):603–610
Muhammad G, Alhamid MF, Long X (2019) Computing and processing on the edge: Smart pathology detection for connected healthcare. IEEE Netw 33(6):44–49
Muhammad G, Rahman SKMM, Alelaiwi A, Alamri A (2017) Smart health solution integrating IoT and cloud: a case study of voice pathology monitoring. IEEE Commun Mag 55(1):69–73
Lotte F et al (2018) A review of classification algorithms for EEG-based brain–computer interfaces: a 10 year update. J Neural Eng 15(3):31005
Craik A, He Y, Contreras-Vidal JL (2019) Deep learning for electroencephalogram (EEG) classification tasks: a review. J Neural Eng 16(3):31001
Padfield N, Zabalza J, Zhao H, Masero V, Ren J (2019) EEG-based brain-computer interfaces using motor-imagery: Techniques and challenges. Sensors 19(6):1423
Aggarwal S, Chugh N (2019) Signal processing techniques for motor imagery brain computer interface: a review. Array 1:100003
Wan Z, Yang R, Huang M, Zeng N, Liu X (2020) A review on transfer learning in EEG signal analysis. Neurocomputing 421:1–14
Lashgari E, Liang D, Maoz U (2020) Data augmentation for deep-learning-based electroencephalography. J Neurosci Methods 2020:108885
Moher D, Liberati A, Tetzlaff J, Altman DG, Group P (2009) Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med 6(7):e1000097
Millán JDR et al (2010) Combining brain–computer interfaces and assistive technologies: state-of-the-art and challenges. Front Neurosci 4:161
Greenfield LJ, Geyer JD, Carney PR (2012) Reading EEGs: a practical approach. Lippincott Williams and Wilkins, Philadelphia
Ball T, Kern M, Mutschler I, Aertsen A, Schulze-Bonhage A (2009) Signal quality of simultaneously recorded invasive and non-invasive EEG. Neuroimage 46(3):708–716
Kandel ER, Schwartz JH, Jessell TM, Siegelbaum S, Hudspeth AJ, Mack S (2000) Principles of neural science. McGraw-Hill, New York
CHB-MIT Scalp EEG Database. Available: https://archive.physionet.org/physiobank/charts/chbmit.png. (Accessed 12 Apr 2020)
Lacey S, Lawson R (2013) Multisensory imagery. Springer Science and Business Media, Berlin
Rezeika A, Benda M, Stawicki P, Gembler F, Saboor A, Volosyak I (2018) Brain–computer interface spellers: a review. Brain Sci 8(4):57
Lee MH et al (2019) EEG dataset and OpenBMI toolbox for three BCI paradigms: an investigation into BCI illiteracy. Gigascience 8(5):giz002
Hassanpour A, Moradikia M, Adeli H, Khayami SR, Shamsinejadbabaki P (2019) A novel end-to-end deep learning scheme for classifying multi-class motor imagery electroencephalography signals. Expert Syst 36(6):e12494
Pfurtscheller G, Brunner C, Schlögl A, Da Silva FHL (2006) Mu rhythm (de) synchronization and EEG single-trial classification of different motor imagery tasks. Neuroimage 31(1):153–159
Wang Y, Nakanishi M, Zhang D (2019) EEG-based brain-computer interfaces, in neural interface: frontiers and applications. Springer, Berlin, pp 41–65
Zhao X, Zhang H, Zhu G, You F, Kuang S, Sun L (2019) A multi-branch 3D convolutional neural network for EEG-based motor imagery classification. IEEE Trans Neural Syst Rehabil Eng 27(10):2164–2177
Avilov O, Rimbert S, Popov A, Bougrain L (2021) Optimizing motor intention detection with deep learning: towards management of intraoperative awareness. IEEE Trans Biomed Eng. https://doi.org/10.1109/TBME.2021.3064794
Zhu K, Wang S, Zheng D, Dai M (2019) Study on the effect of different electrode channel combinations of motor imagery EEG signals on classification accuracy. J Eng 2019(23):8641–8645
Lun X, Yu Z, Chen T, Wang F, Hou Y (2020) A simplified CNN classification method for MI-EEG via the electrode pairs signals. Front Hum Neurosci 14. https://doi.org/10.3389/fnhum.2020.00338
Liu T, Yang D (2021) A densely connected multi-branch 3D convolutional neural network for motor imagery EEG decoding. Brain Sci 11(2):197
Li Y, Yang H, Li J, Chen D, Du M (2020) EEG-based intention recognition with deep recurrent-convolution neural network: performance and channel selection by Grad-CAM. Neurocomputing 415:225–233
Yang J, Ma Z, Wang J, Fu Y (2020) A novel deep learning scheme for motor imagery EEG decoding based on spatial representation fusion. IEEE Access 8:202100–202110
Chu Y, Zhao X, Zou Y, Xu W, Han J, Zhao Y (2018) A decoding scheme for incomplete motor imagery EEG with deep belief network. Front Neurosci 12:680
Jeong J-H, Lee B-H, Lee D-H, Yun Y-D, Lee S-W (2020) EEG classification of forearm movement imagery using a hierarchical flow convolutional neural network. IEEE Access 8:66941–66950
Yang J, Yao S, Wang J (2018) Deep fusion feature learning network for MI-EEG classification. IEEE Access 6:79050–79059
Fahimi F, Dosen S, Ang KK, Mrachacz-Kersting N, Guan C (2020) Generative adversarial networks-based data augmentation for brain-computer interface. IEEE Trans Neural Netw Learn Syst 2020:1–13
Xu B et al (2018) Wavelet transform time-frequency image and convolutional network-based motor imagery EEG classification. IEEE Access 7:6084–6093
Ma X, Qiu S, Wei W, Wang S, He H (2019) Deep channel-correlation network for motor imagery decoding from the same limb. IEEE Trans Neural Syst Rehabil Eng 28(1):297–306
Alwasiti H, Yusoff MZ, Raza K (2020) Motor imagery classification for brain computer interface using deep metric learning. IEEE Access 8:109949–109963
Alazrai R, Abuhijleh M, Alwanni H, Daoud MI (2019) A deep learning framework for decoding motor imagery tasks of the same hand using EEG signals. IEEE Access 7:109612–109627
Gómez-Herrero G, et al. (2006) Automatic removal of ocular artifacts in the EEG without an EOG reference channel. In: Proceedings of the 7th nordic signal processing symposium-NORSIG 2006, pp 130–133
Luo T, Chao F (2018) Exploring spatial-frequency-sequential relationships for motor imagery classification with recurrent neural network. BMC Bioinform 19(1):344
Olivas-Padilla BE, Chacon-Murguia MI (2019) Classification of multiple motor imagery using deep convolutional neural networks and spatial filters. Appl Soft Comput 75:461–472
Sakhavi S, Guan C, Yan S (2018) Learning temporal information for brain-computer interface using convolutional neural networks. IEEE Trans Neural Networks Learn Syst 29(11):5619–5629
Kwon OY, Lee MH, Guan C, Lee SW (2019) Subject-independent brain–computer interfaces based on deep convolutional neural networks. IEEE Trans Neural Networks Learn Syst 31(10):3839–3852
She Q, Hu B, Luo Z, Nguyen T, Zhang Y (2018) A hierarchical semi-supervised extreme learning machine method for EEG recognition. Med Biol Eng Comput 57(1):147–157
Taheri S, Ezoji M, Sakhaei SM (2020) Convolutional neural network based features for motor imagery EEG signals classification in brain–computer interface system. SN Appl Sci 2(4):1–12
Ma X, Wang D, Liu D, Yang J (2020) DWT and CNN based multi-class motor imagery electroencephalographic signal recognition. J Neural Eng 17(1):16073
Lu N, Li T, Ren X, Miao H (2016) A deep learning scheme for motor imagery classification based on restricted Boltzmann machines. IEEE Trans neural Syst Rehabil Eng 25(6):566–576
Xu J, Zheng H, Wang J, Li D, Fang X (2020) Recognition of EEG signal motor imagery intention based on deep multi-view feature learning. Sensors 20(12):3496
Huang W, Xue Y, Hu L, Liuli H (2020) S-EEGNet: electroencephalogram signal classification based on a separable convolution neural network with bilinear interpolation. IEEE Access 8:131636–131646
Wang P, Jiang A, Liu X, Shang J, Zhang L (2018) LSTM-based EEG classification in motor imagery tasks. IEEE Trans Neural Syst Rehabil Eng 26(11):2086–2095
Bang JS, Lee MH, Fazli S, Guan C, Lee SW (2021) Spatio-spectral feature representation for motor imagery classification using convolutional neural networks. IEEE Trans Neural Networks Learn Syst 2021:1–12
Xue J et al (2020) A multifrequency brain network-based deep learning framework for motor imagery decoding. Neural Plast 2020:1–11
Zhao X, Zhao J, Liu C, Cai W (2020) Deep neural network with joint distribution matching for cross-subject motor imagery brain-computer interfaces. Biomed Res Int 2020:1–15
Kumar S, Sharma A, Tsunoda T (2019) Brain wave classification using long short-term memory network based OPTICAL predictor. Sci Rep 9(1):1–13
Kumar S, Sharma R, Sharma A (2021) OPTICAL+: a frequency-based deep learning scheme for recognizing brain wave signals. PeerJ Comput Sci 7:e375
Cheng L, Li D, Yu G, Zhang Z, Li X, Yu S (2020) A motor imagery EEG feature extraction method based on energy principal component analysis and deep belief networks. IEEE Access 8:21453–21472
Zhang R, Zong Q, Dou L, Zhao X (2019) A novel hybrid deep learning scheme for four-class motor imagery classification. J Neural Eng 16(6):66004
Zhang R, Zong Q, Dou L, Zhao X, Tang Y, Li Z (2021) Hybrid deep neural network using transfer learning for EEG motor imagery decoding. Biomed Signal Process Control 63:102144
Uktveris T, Jusas V (2017) Application of convolutional neural networks to four-class motor imagery classification problem. Inf Technol Control 46(2):260–273
Wang Z, Cao L, Zhang Z, Gong X, Sun Y, Wang H (2018) Short time Fourier transformation and deep neural networks for motor imagery brain computer interface recognition. Concurr Comput Pract Exp 30(23):e4413
Zhang K et al (2020) Data augmentation for motor imagery signal classification based on a hybrid neural network. Sensors 20(16):4485
Shajil N, Mohan S, Srinivasan P, Arivudaiyanambi J, Murrugesan AA (2020) Multiclass classification of spatially filtered motor imagery EEG signals using convolutional neural network for BCI based applications. J Med Biol Eng 40(5):663–672
Rong Y, Wu X, Zhang Y (2020) Classification of motor imagery electroencephalography signals using continuous small convolutional neural network. Int J Imaging Syst Technol 30(3):653–659
Roy S, Chowdhury A, McCreadie K, Prasad G (2020) Deep learning based inter-subject continuous decoding of motor imagery for practical brain-computer interfaces. Front Neurosci 14. https://doi.org/10.3389/fnins.2020.00918
Miao M, Hu W, Yin H, Zhang K (2020) Spatial-frequency feature learning and classification of motor imagery EEG based on deep convolution neural network. Comput Math Methods Med 2020:1–13
Li F, He F, Wang F, Zhang D, Xia Y, Li X (2020) A novel simplified convolutional neural network classification algorithm of motor imagery EEG signals based on deep learning. Appl Sci 10(5):1605
Kant P, Laskar SH, Hazarika J, Mahamune R (2020) CWT based transfer learning for motor imagery classification for brain computer interfaces. J Neurosci Methods 345:108886
Tabar YR, Halici U (2016) A novel deep learning approach for classification of EEG motor imagery signals. J Neural Eng 14(1):16003
Dai M, Zheng D, Na R, Wang S, Zhang S (2019) EEG classification of motor imagery using a novel deep learning framework. Sensors 19(3):551
Zhang D, Chen K, Jian D, Yao L (2020) Motor imagery classification via temporal attention cues of graph embedded EEG signals. IEEE J Biomed Heal Inform 24(9):2570–2579
Leeb R, Brunner C, Müller-Putz G, Schlögl A, Pfurtscheller G (2008) BCI Competition 2008–Graz data set B. Inst Knowl Discov Graz Univ Technol 16:1–6
Blankertz B et al (2004) The BCI competition 2003: progress and perspectives in detection and discrimination of EEG single trials. IEEE Trans Biomed Eng 51(6):1044–1051
Deng X, Zhang B, Yu N, Liu K, Sun K (2021) Advanced TSGL-EEGNet for motor imagery EEG-based brain-computer interfaces. IEEE Access 9:25118–25130
Fan CC, Yang H, Hou ZG, Ni ZL, Chen S, Fang Z (2021) Bilinear neural network with 3-D attention for brain decoding of motor imagery movements from the human EEG. Cogn Neurodyn 15(1):181–189
Roots K, Muhammad Y, Muhammad N (2020) Fusion convolutional neural network for cross-subject EEG motor imagery classification. Computers 9(3):72
Li D, Xu J, Wang J, Fang X, Ying J (2020) A multi-scale fusion convolutional neural network based on attention mechanism for the visualization analysis of EEG signals decoding. IEEE Trans Neural Syst Rehabil Eng 28:2615–2626
Lawhern VJ, Solon AJ, Waytowich NR, Gordon SM, Hung CP, Lance BJ (2018) EEGNet: a compact convolutional neural network for EEG-based brain–computer interfaces. J Neural Eng 15(5):56013
Amin SU, Alsulaiman M, Muhammad G, Bencherif MA, Hossain MS (2019) Multilevel weighted feature fusion using convolutional neural networks for EEG motor imagery classification. IEEE Access 7:18940–18950
Dose H, Møller JS, Iversen HK, Puthusserypady S (2018) An end-to-end deep learning approach to MI-EEG signal classification for BCIs. Expert Syst Appl 114:532–542
Tang Z, Li C, Sun S (2017) Single-trial EEG classification of motor imagery using deep convolutional neural networks. Optik (Stuttg) 130:11–18
Dai G, Zhou J, Huang J, Wang N (2020) HS-CNN: a CNN with hybrid convolution scale for EEG motor imagery classification. J Neural Eng 17(1):16025
Lee B-H, Jeong J-H, Lee S-W (2020) SessionNet: feature similarity-based weighted ensemble learning for motor imagery classification. IEEE Access 8:134524–134535
Wu H et al (2019) A parallel multiscale filter bank convolutional neural networks for motor imagery EEG classification. Front Neurosci 13:1275
Zhang C, Kim Y-K, Eskandarian A (2021) EEG-inception: an accurate and robust end-to-end neural network for EEG-based motor imagery classification. J Neural Eng 18(4):46014
Amin SU, Alsulaiman M, Muhammad G, Mekhtiche MA, Hossain MS (2019) Deep Learning for EEG motor imagery classification based on multi-layer CNNs feature fusion. Futur Gener Comput Syst 101:542–554
Xu M et al (2020) Learning EEG topographical representation for classification via convolutional neural network. Pattern Recognit 105:107390
Liao JJ, Luo JJ, Yang T, So RQY, Chua MCH (2020) Effects of local and global spatial patterns in EEG motor-imagery classification using convolutional neural network. Brain Computer Interfaces 7(3–4):47–56
Li M-A, Han J-F, Duan L-J (2019) A novel MI-EEG imaging with the location information of electrodes. IEEE Access 8:3197–3211
Collazos-Huertas DF, Álvarez-Meza AM, Acosta-Medina CD, Castaño-Duque GA, Castellanos-Dominguez G (2020) CNN-based framework using spatial dropping for enhanced interpretation of neural activity in motor imagery classification. Brain Inform 7(1):1–13
Hou Y, Zhou L, Jia S, Lun X (2020) A novel approach of decoding EEG four-class motor imagery tasks via scout ESI and CNN. J Neural Eng 17(1):16048
Liu X, Shen Y, Liu J, Yang J, Xiong P, Lin F (2020) Parallel spatial–temporal self-attention CNN-based motor imagery classification for BCI. Front Neurosci 14. https://doi.org/10.3389/fnins.2020.587520
Amin SU, Altaheri H, Muhammad G, Alsulaiman M, Abdul W (2021) Attention based inception model for robust EEG motor imagery classification. In: 2021 IEEE international instrumentation and measurement technology conference (I2MTC), pp 1–6. https://doi.org/10.1109/I2MTC50364.2021.9460090
Zhu X, Li P, Li C, Yao D, Zhang R, Xu P (2019) Separated channel convolutional neural network to realize the training free motor imagery BCI systems. Biomed Signal Process Control 49:396–403
Musallam YK et al (2021) Electroencephalography-based motor imagery classification using temporal convolutional network fusion. Biomed Signal Process Control 69:102826
Riyad M, Khalil M, Adib A (2021) MI-EEGNET: A novel convolutional neural network for motor imagery classification. J Neurosci Methods 353:109037
Li D, Wang J, Xu J, Fang X (2019) Densely feature fusion based on convolutional neural networks for motor imagery EEG classification. IEEE Access 7:132720–132730
Ha K-W, Jeong J-W (2021) Temporal pyramid pooling for decoding motor-imagery EEG signals. IEEE Access 9:3112–3125
Zhang K, Robinson N, Lee S-W, Guan C (2021) Adaptive transfer learning for EEG motor imagery classification with deep convolutional neural network. Neural Netw 136:1–10
Zhao H, Zheng Q, Ma K, Li H, Zheng Y (2020) Deep representation-based domain adaptation for nonstationary EEG classification. IEEE Trans Neural Networks Learn Syst 32:535–545
Xu G et al (2019) A deep transfer convolutional neural network framework for EEG signal classification. IEEE Access 7:112767–112776
Brunner C, Leeb R, Müller-Putz G, Schlögl A, Pfurtscheller G (2008) BCI Competition 2008–Graz data set A. Inst Knowl Discov Graz Univ Technol 16:1–6
Cho H, Ahn M, Ahn S, Kwon M, Jun SC (2017) EEG datasets for motor imagery brain–computer interface. Gigascience 6(7):gix034
Blankertz B, Dornhege G, Krauledat M, Müller K-R, Curio G (2007) The non-invasive Berlin brain–computer interface: fast acquisition of effective performance in untrained subjects. Neuroimage 37(2):539–550
Kingma DP, Welling M (2013) Auto-encoding variational bayes. arXiv preprint, http://arxiv.org/abs/1312.6114
Li Y, Zhang X-R, Zhang B, Lei M-Y, Cui W-G, Guo Y-Z (2019) A channel-projection mixed-scale convolutional neural network for motor imagery EEG decoding. IEEE Trans Neural Syst Rehabil Eng 27(6):1170–1180
Blankertz B et al (2006) The BCI competition III: validating alternative approaches to actual BCI problems. IEEE Trans neural Syst Rehabil Eng 14(2):153–159
Wang L, Huang W, Yang Z, Zhang C (2020) Temporal-spatial-frequency depth extraction of brain-computer interface based on mental tasks. Biomed Signal Process Control 58:101845
Freer D, Yang G-Z (2020) Data augmentation for self-paced motor imagery classification with C-LSTM. J Neural Eng 17(1):16041
Goldberger AL et al (2000) PhysioBank, PhysioToolkit, and PhysioNet: components of a new research resource for complex physiologic signals. Circulation 101(23):e215–e220
Xiaoling L (2020) Motor imagery-based EEG signals classification by combining temporal and spatial deep characteristics. Int J Intell Comput Cybern 13:437–453
Zhang K et al (2020) Instance transfer subject-dependent strategy for motor imagery signal classification using deep convolutional neural networks. Comput Math Methods Med 2020:1–10
Ofner P, Schwarz A, Pereira J, Müller-Putz GR (2017) Upper limb movements can be decoded from the time-domain of low-frequency EEG. PLoS ONE 12(8):e0182578
Chen J, Yu Z, Gu Z, Li Y (2020) Deep temporal-spatial feature learning for motor imagery-based brain-computer interfaces. IEEE Trans Neural Syst Rehabil Eng 28(11):2356–2366
Steyrl D, Scherer R, Förstner O, Müller-Putz GR (2014) Motor imagery brain-computer interfaces: random forests vs regularized LDA-non-linear beats linear. In: Proceedings of the 6th international brain-computer interface conference, pp 241–244
Ma X, Qiu S, He H (2020) Multi-channel EEG recording during motor imagery of different joints from the same limb. Sci Data 7(1):1–9
Lee HK, Choi Y-S (2019) Application of continuous wavelet transform and convolutional neural network in decoding motor imagery brain-computer interface. Entropy 21(12):1199
Ortiz-Echeverri CJ, Salazar-Colores S, Rodríguez-Reséndiz J, Gómez-Loenzo RA (2019) A new approach for motor imagery classification based on sorted blind source separation, continuous wavelet transform, and convolutional neural network. Sensors 19(20):4541
Chaudhary S, Taran S, Bajaj V, Sengur A (2019) Convolutional neural network based approach towards motor imagery tasks EEG signals classification. IEEE Sens J 19(12):4494–4500
Tang X-L, Ma W-C, Kong D-S, Li W (2019) Semisupervised deep stacking network with adaptive learning rate strategy for motor imagery EEG recognition. Neural Comput 31(5):919–942
Zhang Z et al (2019) A novel deep learning approach with data augmentation to classify motor imagery signals. IEEE Access 7:15945–15954
Tang X, Zhang N, Zhou J, Liu Q (2017) Hidden-layer visible deep stacking network optimized by PSO for motor imagery EEG recognition. Neurocomputing 234:1–10
Deng L, Dong W, Socher R, Li LJ, Li K, Fei-Fei L (2009) Imagenet: a large-scale hierarchical image database. In: IEEE conference on computer vision and pattern recognition, pp 248–255
Altaheri H, Alsulaiman M, Muhammad G, Amin SU, Bencherif M, Mekhtiche M (2019) Date fruit dataset for intelligent harvesting. Data Br 26:104514
Alsulaiman M, Muhammad G, Bencherif MA, Mahmood A, Ali Z (2013) KSU rich Arabic speech database. Information 16(6B):4231–4253
Graz University of Technology (2021) Data sets-BNCI Horizon 2020. Available: http://bnci-horizon-2020.eu/database/data-sets. Accessed 05 Feb 2021
Lotte F (2021) Fabien Lotte’s professional homepage-links. Available: https://sites.google.com/site/fabienlotte/bci-community/links?authuser=0#h.p_ID_172. Accessed 05 Feb 2021
Scherer R et al (2015) Individually adapted imagery improves brain-computer interface performance in end-users with disability. PLoS ONE 10(5):e0123727
Kaya M, Binli MK, Ozbay E, Yanar H, Mishchenko Y (2018) A large electroencephalographic motor imagery dataset for electroencephalographic brain computer interfaces. Sci Data 5:180211
Brodu N, Lotte F, Lécuyer A (2012) Exploring two novel features for EEG-based brain–computer interfaces: multifractal cumulants and predictive complexity. Neurocomputing 79:87–94
Ramos-Murguialday A et al (2013) Brain–machine interface in chronic stroke rehabilitation: a controlled study. Ann Neurol 74(1):100–108
Zhang X, Yao L, Sheng QZ, Kanhere SS, Gu T, Zhang D (2018) Converting your thoughts to texts: enabling brain typing via deep feature learning of EEG signals. In: 2018 IEEE international conference on pervasive computing and communications (PerCom), pp 1–10
Van Erp J, Lotte F, Tangermann M (2012) Brain-computer interfaces: beyond medical applications. Computer (Long Beach Calif) 45(4):26–34
Yuste R et al (2017) Four ethical priorities for neurotechnologies and AI. Nat News 551(7679):159
LaFleur K, Cassady K, Doud A, Shades K, Rogin E, He B (2013) Quadcopter control in three-dimensional space using a noninvasive motor imagery-based brain–computer interface. J Neural Eng 10(4):46003
Yu Y et al (2016) Toward brain-actuated car applications: Self-paced control with a motor imagery-based brain-computer interface. Comput Biol Med 77:148–155
Zhang X, Yao L, Huang C, Sheng QZ, Wang X (2017) Intent recognition in smart living through deep recurrent neural networks. In: International conference on neural information processing, pp 748–758
Li T, Zhang J, Xue T, Wang B (2017) Development of a novel motor imagery control technique and application in a gaming environment. Comput Intell Neurosci 2017:1–16
Kreilinger A, Hiebel H, Müller-Putz GR (2015) Single versus multiple events error potential detection in a BCI-controlled car game with continuous and discrete feedback. IEEE Trans Biomed Eng 63(3):519–529
Zhang X, Yao L, Kanhere SS, Liu Y, Gu T, Chen K (2018) Mindid: Person identification from brain waves through attention-based recurrent neural network. Proc ACM Interactive Mobile Wearable Ubiquitous Technol 2(3):1–23
Zhang X, Yao L, Huang C, Gu T, Yang Z, Liu Y (2017) DeepKey: an EEG and gait based dual-authentication system. arXiv Preprint, http://arxiv.org/abs/1706.01606
Acknowledgements
The authors extend their appreciation to the Deputyship for Research & Innovation, Ministry of Education in Saudi Arabia for funding this research work through the project number (DRI-KSU-1354).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they do not have any type of conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Altaheri, H., Muhammad, G., Alsulaiman, M. et al. Deep learning techniques for classification of electroencephalogram (EEG) motor imagery (MI) signals: a review. Neural Comput & Applic 35, 14681–14722 (2023). https://doi.org/10.1007/s00521-021-06352-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00521-021-06352-5