Figure 8.

Pink noise evoked potentials across the 30,000-channel microwire array from the sheep auditory cortex (red shaded area, described in [72]). (A) Location of the array (blue shaded boundary) for the auditory cortex surface recording and a map of ΔRMS (i.e., response RMS minus baseline RMS) for individual channels in response to pink noise. With the ΔRMS of at least 10 μV, 21,963 of these channels were responders to pink noise, A (anterior) and D (dorsal) for the channel location in the array. (B) Evoked potentials (mean +/− SEM) from representative responding electrodes. (C) Trial-averaged evoked potentials of all 30,146 channels in response to pink noise. The red line denotes when the stimulus was presented. Channels were ordered spatially by the pixel location.