Fig. 7: Image-dependent elevation of perceptual thresholds without saccades.

Full psychometric curves of flash visibility around the time of simulated saccades (similar to Fig. 2, paradigm similar to Fig. 6). a–d Solid curves: mean ± s.e.m of individual psychometric curves of N = 5 subjects (individual subject results: Supplementary Fig. 7). Dashed curves: baseline data from the same subjects without simulated saccades and long after any real saccades (same data as in Fig. 2d; also similar to Supplementary Fig. 3a, b with additional subjects). Red and blue: data for coarse and fine textures, respectively. a Flash 24 ms before texture displacement onset: coarse texture (red) requires higher flash contrasts (that is, reduced sensitivity) relative to baseline. This effect was much weaker with fine textures (blue). b Flash 12 ms before displacement onset: both coarse and fine textures were associated with significant perceptual suppression relative to baseline, consistent with Fig. 6. Suppression was stronger for coarse than fine textures. c Perceptual suppression was the strongest (note the different x-axis scale from the other panels) immediately after texture displacement onset. d 96 ms after texture displacement onset, there was still significant perceptual suppression, again significantly stronger for coarse than fine textures. This result is consistent with Fig. 6 and highlights the longer-lasting suppression around simulated saccades compared to real saccades (Figs. 1 and 2). e Detection thresholds from a–d as a function of flash time from texture displacement onset. Pre- and post-displacement perceptual suppression occurred and was stronger with coarse textures. Asterisks: significant differences between coarse and fine textures (two-tailed two-sample t-test; *p < 0.05; **p < 0.01). Horizontal dashed lines: baseline detection thresholds from Fig. 2d, e. All other conventions are similar to Figs. 1, 2, 6.