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Published in:
2017 | OriginalPaper | Chapter
Brain-Computer Interface Research: A State-of-the-Art Summary 5
Authors : Christoph Guger, Brendan Allison, Junichi Ushiba
Published in: Brain-Computer Interface Research
Publisher: Springer International Publishing
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Abstract
Brain-computer interface (BCI) technology was first developed as a tool to provide basic communication, such as spelling, without movement. By detecting specific patterns of activity in the brain, BCIs can get a general idea of which messages or commands a user wants to send. For example, a user might pay attention to a flickering icon on a monitor with the letter “A” to spell that letter, or imagine left hand movement to move a cursor, wheelchair, or humanoid robot to the left. BCIs might detect brain activity through sensors outside the head, such as an electrode cap that detects the electroencephalogram (EEG) or sensors inside the head, such as electrocorticography (ECoG) activity that is detected during neurosurgery.