Bcis That Use P300 Event-related Potentials
نویسندگان
چکیده
27 of visual evoked potentials (i.e., VEPs) have been used as signal 28 features for BCIs. The design and operation of BCIs that use 29 endogenous ERP components differ both in principle and 30 practice from those of BCIs that use exogenous ERP compo 31 nents. This chapter focuses on BCIs that use P300, an endoge 32 nous ERP component. Chapter 14 discusses BCIs that use 33 exogenous VEP components.
منابع مشابه
P300 brain computer interface: current challenges and emerging trends
A brain-computer interface (BCI) enables communication without movement based on brain signals measured with electroencephalography (EEG). BCIs usually rely on one of three types of signals: the P300 and other components of the event-related potential (ERP), steady state visual evoked potential (SSVEP), or event related desynchronization (ERD). Although P300 BCIs were introduced over twenty yea...
متن کاملTemporal Feature Selection for Optimizing Spatial Filters in a P300 Brain-Computer Interface
For the creation of efficient and robust BrainComputer Interfaces (BCIs) based on the detection of eventrelated potentials (ERPs) in the electroencephalogram (EEG), spatial filtering has been shown as being an important step for feature extraction and reduction. Current spatial filtering methods for ERP enhancement typically consider a global approach by enhancing the signal on a predefined tim...
متن کاملOptimizing the Face Paradigm of BCI System by Modified Mismatch Negative Paradigm
Many recent studies have focused on improving the performance of event-related potential (ERP) based brain computer interfaces (BCIs). The use of a face pattern has been shown to obtain high classification accuracies and information transfer rates (ITRs) by evoking discriminative ERPs (N200 and N400) in addition to P300 potentials. Recently, it has been proved that the performance of traditiona...
متن کاملAn ERP-Based BCI using an oddball Paradigm with Different Faces and Reduced errors in Critical Functions
Recent research has shown that a new face paradigm is superior to the conventional "flash only" approach that has dominated P300 brain-computer interfaces (BCIs) for over 20 years. However, these face paradigms did not study the repetition effects and the stability of evoked event related potentials (ERPs), which would decrease the performance of P300 BCI. In this paper, we explored whether a n...
متن کاملA Novel Oddball Paradigm for Affective BCIs Using Emotional Faces as Stimuli
The studies of P300-based brain computer interfaces (BCIs) have demonstrated that visual attention to an oddball event can enhance the event-related potential (ERP) time-locked to this event. However, it was unclear that whether the more sophisticated face-evoked potentials can also be modulated by related mental tasks. This study examined ERP responses to objects, faces, and emotional faces wh...
متن کامل