Fig. 7: Results of visual stimulation and chronic in vivo neural signal recording.
From: Conformal bumped electrode web for chronic ECoG recordings in swine
a A model of sealed chamber for ECoG electrode. Photoes of (b) the exposed chamber and electrode connector fixed in pig’s brain and (c) the sealed chamber after suturing and (d) neural signal recoding with an Intan headstage; e Schematic diagram of the visual stimulation protocol; f VEP waveforms of three representative channels and g PSD under light-stimulated and non-light-stimulated conditions; (h-j) 10-second neural signal traces of the pig after band-pass filtering (0.5-150 Hz). k Electrode impedance values (n = 3), (l) signal-to-noise ratio (SNR) (n = 3), and (m) PSD measured at Week 1, Week 4, and Week 5 post-implantation
