Fig. 3: Experiments 2 and 3.
From: Cortical evidence accumulation for visual perception occurs irrespective of reports
A Experimental procedures. Face stimuli were presented at threshold or suprathreshold intensities. In experiment 2, participants reported a detection response at the end of the trial. In experiment 3, participants passively viewed the visual stream. Faces are replaced by a white placeholder in the figure to satisfy Nature’s policy about AI-generated images. B Mean and individual false alarm rates in catch trials (black) and hit rates when faces were presented at threshold (light blue) and suprathreshold (dark blue) intensities in experiment 2 (n = 30). C Averaged HGA traces from the same channels as in Fig. 2A, as a function of stimulus detection (hits or miss, in blue and red) and intensity (threshold or suprathreshold, in light and dark color shades) in experiment 2. This channel in the anterior insula was pre-registered as part of our IFC ROI. D The averaged activity across all responsive channels in the VVC (left panel) and IFC (right panel) in experiment 2. E Averaged HGA traces from the same channels as in Figs. 2A and 3C, as a function of stimulus intensity (threshold or suprathreshold, in light and dark green) in experiment 3 (right panels). F Similarly to D, the averaged activity across all responsive channels in the VVC (left panel) and IFC (right panel) in experiment 3. In C and D, the black bars indicate significant main effects of detection; in E and F, they indicate significant main effects of stimulus intensity (cluster-based statistics for individual channels, hierarchical mixed-effects regressions for ROIs; corrected for false discovery rate across time). G Averaged decoded latent variable in hit (blue trace) and miss (red trace) trials in experiment 2 (left panel) and in threshold and suprathreshold trials in experiment 3 (right panel) in the VVC of participant G5. H Same as G in the IFC of participant G21. All error bars and shaded areas indicate 95% confidence intervals.
