Fig. 1

Example MUA spike density histogram indicating the analysed MUA parameters. At the stimulus onset (1 s; stimulus represented by grey shading), there is a peak in MUA. MUA then typically rapidly reduces to a ‘plateau’ level. The peak was isolated and quantified in this study by averaging activity in the last 1.5 s of the stimulus, adding this to the average ‘spontaneous’ activity and taking these away from the peak value