The strongest selective response occurs between 100 and 200 ms

Proportion of selective sites for MUA (red) and LFP (blue) as a function of the analysis window. We used windows of 100 ms that end at the time indicated on the x-axis. Selectivity was assessed by a one-way ANOVA on the responses for the 77 objects (we used a threshold p value of 0.001 to define a site as selective). The dashed lines indicate the stimulus onset and offset respectively. Due to the pseudo-randomization of the presentation order, the 100 ms interval before stimulus onset does not show any selectivity for the subsequent object. Throughout the text, we therefore use this interval as a control. The duration of the response extends significantly beyond stimulus offset and into the presentation of the next object (which would be between 200 and 300 ms in this figure). The LFP response is more sustained than the MUA response.