Fig. 2: Neurons representing the task-irrelevant stimulus are correlated with choice.
From: Decision-related feedback in visual cortex lacks spatial selectivity
a Choice correlations (cc) for n = 703 units in V2 when the stimulus in the receptive field was relevant (abscissa) or irrelevant (ordinate) are correlated (r = 0.61, p = 10−71, two-sided Spearman’s rank correlation). b Choice correlations for both the relevant (red, mean = 0.11 (area under the receiver-operating characteristic, aROC = 0.55), p = 10−21)) and irrelevant (blue, mean = 0.07 (aROC = 0.53), p = 10−12, two-sided Wilcoxon signed rank) stimulus were significantly positive and similar although their distributions differed significantly from one another (two-sided Wilcoxon signed rank, p = 10−4). c Choice correlation (300 ms wide sliding window, 10 ms increment) as a function of time after stimulus onset for the relevant (red) and irrelevant (blue) stimulus. Error bars depict s.e.m. d–f Same as a–c but for n = 486 units in V3/V3a (correlation between relevant and irrelevant choice correlations r = 0.42, p = 10−21; relevant: mean = 0.09 (aROC = 0.54), p = 10−10; irrelevant: mean = 0.07 (aROC = 0.53), p = 10−12; difference in distributions, p = 0.07).
