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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Self-initiation of EEG-based brain-computer communication using the heart rate response.
    Author: Scherer R, Müller-Putz GR, Pfurtscheller G.
    Journal: J Neural Eng; 2007 Dec; 4(4):L23-9. PubMed ID: 18057501.
    Abstract:
    Self-initiation, that is the ability of a brain-computer interface (BCI) user to autonomously switch on and off the system, is a very important issue. In this work we analyze whether the respiratory heart rate response, induced by brisk inspiration, can be used as an additional communication channel. After only 20 min of feedback training, ten healthy subjects were able to self-initiate and operate a 4-class steady-state visual evoked potential-based (SSVEP) BCI by using one bipolar ECG and one bipolar EEG channel only. Threshold detection was used to measure a beat-to-beat heart rate increase. Despite this simple method, during a 30 min evaluation period on average only 2.9 non-intentional switches (heart rate changes) were detected.
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