Evaluation of flashing stimuli shape and colour heterogeneity using a P300 brain-computer interface speller

Fernández-Rodríguez, Álvaro; Velasco-Álvarez, Francisco; Medina-Juliá, María Teresa; Ron-Angevín, Ricardo

doi:10.1016/j.neulet.2019.134385

Cited by 16 publications

(7 citation statements)

References 19 publications

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“…Different variations on the highlighting type and nature of the characters have been studied, such as the shape, color and size of the characters (Salvaris and Sepulveda, 2009;Ryan et al, 2017;Fernández-Rodríguez et al, 2019b) in order to improve system performance (classification accuracy, information transfer rate or ERP amplitude). Regarding the nature of stimuli, it has been demonstrated that the presentation of famous faces (FF) instead of letters leads to an improvement in performance (Kaufmann et al, 2011;Li et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis With Different Types of Visual Stimuli in a BCI-Based Speller Under an RSVP Paradigm

Ron-Angevín

Medina-Juliá

Fernández-Rodríguez

et al. 2021

Front. Comput. Neurosci.

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Brain-Computer Interface (BCI) systems enable an alternative communication channel for severely-motor disabled patients to interact with their environment using no muscular movements. In recent years, the importance of research into non-gaze dependent brain-computer interface paradigms has been increasing, in contrast to the most frequently studied BCI-based speller paradigm (i.e., row-column presentation, RCP). Several visual modifications that have already been validated under the RCP paradigm for communication purposes have not been validated under the most extended non-gaze dependent rapid serial visual presentation (RSVP) paradigm. Thus, in the present study, three different sets of stimuli were assessed under RSVP, with the following communication features: white letters (WL), famous faces (FF), neutral pictures (NP). Eleven healthy subjects participated in this experiment, in which the subjects had to go through a calibration phase, an online phase and, finally, a subjective questionnaire completion phase. The results showed that the FF and NP stimuli promoted better performance in the calibration and online phases, being slightly better in the FF paradigm. Regarding the subjective questionnaires, again both FF and NP were preferred by the participants in contrast to the WL stimuli, but this time the NP stimuli scored slightly higher. These findings suggest that the use of FF and NP for RSVP-based spellers could be beneficial to increase information transfer rate in comparison to the most frequently used letter-based stimuli and could represent a promising communication system for individuals with altered ocular-motor function.

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Section: Introductionmentioning

confidence: 99%

Performance Analysis With Different Types of Visual Stimuli in a BCI-Based Speller Under an RSVP Paradigm

Ron-Angevín

Medina-Juliá

Fernández-Rodríguez

et al. 2021

Front. Comput. Neurosci.

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“…One study reported better performance and larger ERPs in block-shaped stimuli than letter-shaped because the block stimuli were larger. 67 Another study reported larger P300 in face stimuli than size matched nonface stimuli and larger P300 in large nonface stimuli than small nonface stimuli although performance did not differ between the conditions. 68 Our study has extended these findings to ALS patients.…”

Section: Discussionmentioning

confidence: 93%

Habituation of P300 in the Use of P300-based Brain-Computer Interface Spellers: Individuals With Amyotrophic Lateral Sclerosis Versus Age-Matched Controls

Silva-Sauer

Donchin

2020

Clin EEG Neurosci

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The P300-based brain-computer interface speller can provide motor independent communication to individuals with amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disorder that affects the motor system. P300 amplitude stability is critical for operation of the P300 speller. The P300 has good long-term stability, but to our knowledge, short-term habituation in the P300 speller has not been studied. In the current study, 15 participants: 8 ALS patients and 7 age-matched healthy volunteers (HVs), used 2 versions of P300 spellers, Face speller and Flash speller, each for 30 minutes. The ALS group performed as well as the HVs in both spellers and HVs did better with the Face speller than Flash speller while the ALS group performed equally well in both spellers. Neither intra-run P300 habituation nor inter-run P300 habituation was found. The P300 speller could be a reliable communication device for individuals with ALS.

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“…Count References BCI2000 41 [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41] G-tec 29 [2], [42], [43], [7], [9], [10], [44], [45], [46], [23], [47],…”

Section: Devicesmentioning

confidence: 99%

“…SWLDA 38 [1], [2], [7], [9], [10], [13], [14], [17], [18], [20], [22], [24], [26], [32], [42], [43], [46], [48], [57], [59], [64], [65], [66], [68], [69], [73], [75], [86], [89], [90], [91], [92], [93], [94], [95], [96], [97], [98], [99] SVM 27 [4], [6], [13], [15], [16], [25], [27], [30], [39], [41], [64], [76], ...…”

Section: Models Count Referencesunclassified

How Visual Stimuli Evoked P300 is Transforming the Brain–Computer Interface Landscape: A PRISMA Compliant Systematic Review

Kalra

Mittal

et al. 2023

IEEE Trans. Neural Syst. Rehabil. Eng.

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Non-invasive Visual Stimuli evoked-EEGbased P300 BCIs have gained immense attention in recent years due to their ability to help patients with disability using BCI-controlled assistive devices and applications. In addition to the medical field, P300 BCI has applications in entertainment, robotics, and education. The current article systematically reviews 147 articles that were published between 2006-2021*. Articles that pass the pre-defined criteria are included in the study. Further, classification based on their primary focus, including article orientation, participants' age groups, tasks given, databases, the EEG devices used in the studies, classification models, and application domain, is performed. The application-based classification considers a vast horizon, including medical assessment, assistance, diagnosis, applications, robotics, entertainment, etc. The analysis highlights an increasing potential for P300 detection using visual stimuli as a prominent and legitimate research area and demonstrates a significant growth in the research interest in the field of BCI spellers utilizing P300. This expansion was largely driven by the spread of wireless EEG devices, advances in computational intelligence methods, machine learning, neural networks and deep learning.

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Evaluation of flashing stimuli shape and colour heterogeneity using a P300 brain-computer interface speller

Cited by 16 publications

References 19 publications

Performance Analysis With Different Types of Visual Stimuli in a BCI-Based Speller Under an RSVP Paradigm

Performance Analysis With Different Types of Visual Stimuli in a BCI-Based Speller Under an RSVP Paradigm

Habituation of P300 in the Use of P300-based Brain-Computer Interface Spellers: Individuals With Amyotrophic Lateral Sclerosis Versus Age-Matched Controls

How Visual Stimuli Evoked P300 is Transforming the Brain–Computer Interface Landscape: A PRISMA Compliant Systematic Review

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