Andrei Barborica

Discussion We described two different hippocampal sources recorded during a recognition memory task in humans. Patients with intracerebral electrodes implanted for focal drug-resistant epilepsy monitoring were asked to classify images as “old” or “new.” Using ICA on the SEEG recordings, we disentangled two hippocampal components (i.e., the spatial distribution maximum was inside the hippocampus) from other cortical and remote sources.

2. Materials and Methods 2.1. Substrates For the planar electrode mockups, glass slides of various dimensions (75 × 25 mm and 250 × 15–50 mm) were covered with self-adhesive 5 mil thick (125 μm) polyimide foils (Kapton® 500HN), and the functional macrocontacts and the conductive routes were directly fabricated on the polyimide-covered surface of the commercial probes (various lengths: 10–23 cm, and outer diameters: ~550, and ~770 μm).