Wheelchair Automation by a Hybrid BCI System Using SSVEP and Eye Blinks

Kanungo, Lizy; Garg, Nikhil; Bhobe, Anish; Smit, Rajguru,; Baths, Veeky

doi:10.1109/smc52423.2021.9659266

Cited by 4 publications

(2 citation statements)

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“…This resultant wave signal's Shannon entropy [ H ( X )] is the desired SIQ of a particular frequency band. Due to its tracking capability for dynamic amplitude change and frequency component change, this feature has been used to measure the information in the brain (Shin et al, 2006 ; Kanungo et al, 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Decoding the neural signatures of valence and arousal from portable EEG headset

Garg

Anand

et al. 2022

Front. Hum. Neurosci.

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Emotion classification using electroencephalography (EEG) data and machine learning techniques have been on the rise in the recent past. However, past studies use data from medical-grade EEG setups with long set-up times and environment constraints. This paper focuses on classifying emotions on the valence-arousal plane using various feature extraction, feature selection, and machine learning techniques. We evaluate different feature extraction and selection techniques and propose the optimal set of features and electrodes for emotion recognition. The images from the OASIS image dataset were used to elicit valence and arousal emotions, and the EEG data was recorded using the Emotiv Epoc X mobile EEG headset. The analysis is carried out on publicly available datasets: DEAP and DREAMER for benchmarking. We propose a novel feature ranking technique and incremental learning approach to analyze performance dependence on the number of participants. Leave-one-subject-out cross-validation was carried out to identify subject bias in emotion elicitation patterns. The importance of different electrode locations was calculated, which could be used for designing a headset for emotion recognition. The collected dataset and pipeline are also published. Our study achieved a root mean square score (RMSE) of 0.905 on DREAMER, 1.902 on DEAP, and 2.728 on our dataset for valence label and a score of 0.749 on DREAMER, 1.769 on DEAP, and 2.3 on our proposed dataset for arousal label.

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Section: Methodsmentioning

confidence: 99%

Decoding the neural signatures of valence and arousal from portable EEG headset

Garg

Anand

et al. 2022

Front. Hum. Neurosci.

Self Cite

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show abstract

“…Shannon entropy ( H ( X )) of this resultant wave signal is the desired SIQ of a particular frequency band. Due to its tracking capability for dynamic amplitude change and frequency component change, this feature has been used to measure the information contained in the brain (Shin et al, 2006; Kanungo et al, 2021).…”

Section: Feature Extractionmentioning

confidence: 99%

Decoding the Neural Signatures of Valence and Arousal From Portable EEG Headset

Garg

Parrivesh

et al. 2021

Preprint

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This paper focuses on classifying emotions on the valence-arousal plane using various feature extraction, feature selection and machine learning techniques. Emotion classification using EEG data and machine learning techniques has been on the rise in the recent past. We evaluate different feature extraction techniques, feature selection techniques and propose the optimal set of features and electrodes for emotion recognition. The images from the OASIS image dataset were used for eliciting the Valence and Arousal emotions, and the EEG data was recorded using the Emotiv Epoc X mobile EEG headset. The analysis is additionally carried out on publicly available datasets: DEAP and DREAMER. We propose a novel feature ranking technique and incremental learning approach to analyze the dependence of performance on the number of participants. Leave one out cross-validation was carried out to identify subject bias in emotion elicitation patterns. The importance of different electrode locations was calculated, which could be used for designing a headset for emotion recognition. Our study achieved root mean square errors of less than 0.75 on DREAMER, 1.76 on DEAP, and 2.39 on our dataset.

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