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. 2014 Sep 17;8:326. doi: 10.3389/fnbeh.2014.00326

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Copyright © 2014 Aimé, Palouzier-Paulignan, Salem, Al Koborssy, Garcia, Duchamp, Romestaing and Julliard.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Localization of glucose-oxidase biosensors (red) and control BSA sensor (green) electrodes in OB (A, C) and somatosensory cortex (B, C). At the OB level (A), two electrodes were implanted symmetrically (coordinates: AP +6.5 mm from Bregma, M/L −2.3 mm and D/V −1.0 mm from dura). A glucose-oxidase biosensor (Gluc, red line) was positioned in one bulb and a control BSA sensor (BSA, green line) in the other bulb. The latter was set measure nonspecific variations in oxidation current. In the somatosensory cortex (B), contralateral to the OB glucose sensor, the second glucose-oxidase biosensor was inserted (coordinates: AP −3.5 mm from Bregma, M/L +2.3 and D/V −2.3 mm from dura). The coronal drawings are from the Paxinos and Watson (2007) atlas, plates 1 and 27 (EPL: external plexiform layer, GCL: granular cell layer, GL: glomerular layer, MCL: mitral cell layer).