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. 2021 Mar 3;109(5):894–904.e8. doi: 10.1016/j.neuron.2020.12.013

Figure 5.

Figure 5

The relationship between baseline pupil diameter and On/Off episode durations

(A) Example recording showing that baseline pupil diameter is positively correlated to the average On episode duration in V1. Each dot represents a single trial; r is the Pearson correlation coefficient. The purple and red dots indicate the example trials used in (C).

(B) Across recordings, the average duration of On epochs in both V1 and V4 is positively correlated with the size of the baseline pupil diameter.

(C) MUA raster plot of 2 example trials in which the average On epoch duration is longer on the trial with larger (bottom) compared to the trial with smaller (top) baseline pupil diameter.

(D) Across recordings, baseline pupil diameter is negatively (positively) correlated with the average epoch duration when both V1 and V4 are in an Off (On) phase.

(E) The average baseline pupil diameter during attend RF conditions plotted against attend away conditions. There is no difference between attention conditions. Each dot represents a recording session.

Statistics: two-sided Wilcoxon signed rank test (FDR corrected) (B, D, and E) and Pearson correlation (A). Data are represented as means ± SEMs across recordings; significance levels ∗p < 0.05, ∗∗p < 0.01, and ∗∗∗p < 0.001.