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Article Dans Une Revue IEEE Transactions on Human-Machine Systems Année : 2020

3-D Interface for the P300 Speller BCI

Résumé

A brain–computer interface (BCI) is a common device for communication between the human brain and a computer. This article investigates the efficiency of using a 3-D interface for BCI machines. For this purpose, the P300 speller, which is a BCI device that enables the user to spell characters on a screen using brain waves, is modified. The classical virtual keyboard of the P300 speller is replaced with 3-D stereoscopic images, which enhances the ergonomic features of the device. Moreover, the flashing paradigm on a 3-D interface can affect the performance of the device in three ways: accuracy, speed, and capacity. This article proposes two different flashing paradigms called the natural 3-D and parallel 2-D interfaces and studied their effects regarding the three mentioned measures. The former flashes the planes in 3-D space, and the latter comprises flashes of parallel keyboards at different 3-D depths. The theoretical analysis of these effects is presented. The results are validated by experimental data obtained from real subjects and were compared with the classical 2-D interface. Both presented keyboards increase the speed of the device, while parallel 2-D has a better total performance than natural 3-D.
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Dates et versions

hal-03078380 , version 1 (16-12-2020)

Identifiants

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Saman Noorzadeh, Bertrand Rivet, Christian Jutten. 3-D Interface for the P300 Speller BCI. IEEE Transactions on Human-Machine Systems, 2020, 50 (6), pp.604-612. ⟨10.1109/THMS.2020.3016079⟩. ⟨hal-03078380⟩
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