التفاصيل البيبلوغرافية
| العنوان: |
An Application Framework for Controlling an Avatar in a Desktop-Based Virtual Environment via a Software SSVEP Brain-Computer Interface. |
| المؤلفون: |
Faller, Josef1, Müller-Putz, Gernot1, Schmalstieg, Dieter2, Pfurtscheller, Gert1 pfurtscheller@tugraz.at |
| المصدر: |
PRESENCE: Teleoperators & Virtual Environments. Feb2010, Vol. 19 Issue 1, p25-34. 10p. 4 Black and White Photographs, 2 Diagrams, 3 Charts. |
| مصطلحات موضوعية: |
*VIRTUAL reality, *EVOKED potentials (Electrophysiology), *BRAIN-computer interfaces, *COMPUTER software, *COMMUNICATION |
| مستخلص: |
This paper presents a reusable, highly configurable application framework that seamlessly integrates SSVEP stimuli within a desktop-based virtual environment VE) on standard PC equipment. Steady-state visual evoked potentials (SSVEPs) re brain signals that offer excellent information transfer rates (ITR) within brain--computer interface (BCI) systems while requiring only minimal training. Generating SSVEP stimuli in a VE allows for an easier implementation of motivating training paradigms and more realistic simulations of real-world applications. EEG measurements on seven healthy subjects within three scenarios (Button, Slalom, and Apartment) showed that moving and static software generated SVEP stimuli flickering at frequencies of up to 29 Hz proved suitable to elicit SVEPs. This research direction could lead to vastly improved immersive VEs hat allow both disabled and healthy users to seamlessly communicate or interact through an intuitive, natural, and friendly interface. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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