-A A +A
Electrocorticography (ECoG) is receiving growing attention for both clinical and research applications thanks to its reduced invasiveness and ability of addressing large cortical areas. These benefits come with a main drawback, ie a limited frequency bandwidth. However, recent studies have shown that spiking activity from cortical neurons can be recorded when the ECoG grids present the following combined properties:(I) conformable substrate,(II) small neuron-sized electrodes with (III) low-impedance interfaces. We introduce here an ad-hoc designed ECoG device for investigating how electrode size, interface material composition and electrochemical properties affect the capability to record evoked and spontaneous neural signals from the rat somatosensory cortex and influence the ability to record high frequency neural signal components. Contact diameter reduction down to 8 μm was possible thanks to a …
Trans Tech Publications Ltd
Publication date: 
1 Jan 2017

Elisa Castagnola, Marco Marrani, Emma Maggiolini, Francesco Maita, Luca Pazzini, Davide Polese, Alessandro Pecora, Luca Maiolo, Guglielmo Fortunato, Luciano Fadiga, Davide Ricci

Biblio References: 
Volume: 102 Pages: 77-85
Advances in Science and Technology