title: Bristle-sensors--low-cost flexible passive dry EEG electrodes for neurofeedback and BCI applications.
abstract: In this paper, we present a new, low-cost dry electrode for EEG that is made of flexible metal-coated polymer bristles. We examine various standard EEG paradigms, such as capturing occipital alpha rhythms, testing for event-related potentials in an auditory oddball paradigm and performing a sensory motor rhythm-based event-related (de-) synchronization paradigm to validate the performance of the novel electrodes in terms of signal quality. Our findings suggest that the dry electrodes that we developed result in high-quality EEG recordings and are thus suitable for a wide range of EEG studies and BCI applications. Furthermore, due to the flexibility of the novel electrodes, greater comfort is achieved in some subjects, this being essential for long-term use.
authors: Fraunhofer Institute FIRST, Kekulestrasse 7, Berlin 12489, Germany. cristian.grozea@first.fraunhofer.de
authors: Cristian
authors: C
authors: Grozea
authors: Catalin D
authors: CD
authors: Voinescu
authors: Siamac
authors: S
authors: Fazli
mesh_terms: D001676:Biofeedback, Psychology / Q000295:instrumentation*; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000295:instrumentation*; D003143:Communication Devices for People with Disabilities; D004548:Elasticity; D004566:Electrodes; D004569:Electroencephalography / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D014159:Transducers; D014584:User-Computer Interface