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Electrocorticography (ECoG) is becoming a common tool for clinical applications, such as preparing patients for epilepsy surgery or localizing tumor boundaries, as it successfully balances invasiveness and information quality. Clinical ECoG arrays use millimeter-scale electrodes and centimeter-scale pitch and cannot precisely map neural activity. Higher-resolution electrodes are of interest for both current clinical applications, providing access to more precise neural activity localization and novel applications, such as neural prosthetics, where current information density and spatial resolution is insufficient to suitably decode signals for a chronic brain-machine interface. Developing such electrodes is not trivial because their small contact area increases the electrode impedance, which seriously affects the signal-to-noise ratio, and adhering such an electrode to the brain surface becomes critical. The most …
Publication date: 
25 Jul 2014

Elisa Castagnola, Luca Maiolo, Emma Maggiolini, Antonio Minotti, Marco Marrani, Francesco Maita, Alessandro Pecora, Gian Nicola Angotzi, Alberto Ansaldo, Massimiliano Boffini, Luciano Fadiga, Guglielmo Fortunato, Davide Ricci

Biblio References: 
Volume: 23 Issue: 3 Pages: 342-350
IEEE Transactions on Neural Systems and Rehabilitation Engineering