DocumentCode :
139444
Title :
Towards an architecture of a hybrid BCI based on SSVEP-BCI and passive-BCI
Author :
Cotrina, Anibal ; Benevides, Alessandro ; Ferreira, Andre ; Bastos, Teodiano ; Castillo, Javier ; Menezes, Maria Luiza ; Pereira, Clever
Author_Institution :
Electr. Eng. Grad. Sch., Fed. Univ. of Espirito Santo, Vitoria, Brazil
fYear :
2014
fDate :
26-30 Aug. 2014
Firstpage :
1342
Lastpage :
1345
Abstract :
Recent decades have seen BCI applications as a novel and promising new channel of communication, control and entertainment for disabled and healthy people. However, BCI technology can be prone to errors due to the basic emotional state of the user: the performance of reactive and active BCIs decrease when user becomes stressed or bored, for example. Passive-BCI is a recent approach that fuses BCI technology with cognitive monitoring, providing valuable information about the user´s intentions, the situational interpretations and mainly the emotional state. In this work, an architecture composed by passive-BCI co-working with SSVEP-BCI is proposed, with the aim of improving the performance of the reactive-BCI. The possibility of adjusting recognition characteristics of SSVEP-BCIs using a passive-BCI output is evaluated. In this sense, two ways to recover the accuracy of SSVEP are presented in this paper: 1) Adjusting of Amplitude of the SSVEP and 2) Adjusting of Frequency of the SSVEP response. The results are promising, because accuracy of SSVEP-BCI can be recovered in the case that it was reduced by the BCI user´s emotional state.
Keywords :
brain-computer interfaces; cognition; electroencephalography; emotion recognition; handicapped aids; medical signal processing; visual evoked potentials; BCI applications; BCI technology; BCI user emotional state; SSVEP amplitude adjustment; SSVEP response frequency adjustment; SSVEP-BCI; basic emotional state; cognitive monitoring; communication channel; control; disabled people; entertainment; healthy people; hybrid BCI; passive-BCI output; reactive-BCI; recognition characteristics; situational interpretations; user intentions; Accuracy; Brain-computer interfaces; Computer architecture; Educational institutions; Electrodes; Electroencephalography; Frequency-domain analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
ISSN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2014.6943847
Filename :
6943847
Link To Document :
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