Figure 2.

Selective visual attention with trained and untrained tasks pre- and post-perceptual learning (PL). (A) Group mean of attention improvement with trained tasks (searching/counting performance). Colors denote the group. Error bars denote SEM. Dashed lines indicate 1:1 ratio between reported and displayed number of Gabors. Solid curves are the fits of a variant of the Weibull function. (B) Comparison of Weibull function fit results from individual participants in trained tasks pre- and post-PL with the fit parameters η (left 2 panels) and β (right 2 panels). Data below the dashed line (1:1 ratio of pre- and post-PL) for parameter η and above the dashed line for parameter β indicate improvement after training. (C) Comparison of Max. Gabor count from individual participants pre- and post-PL. Data above the dashed lines indicate improved performance in the trained tasks. Four participants who did not complete 16 PL sessions are marked with open symbols for the AE in the left panel and with filled symbols for the FE in the third panel in (B) and (C). Participants who were tested repeatedly across PL sessions in “Results” section “Correlation of task-related selective attention and interocular suppression/visual acuity across perceptual learning sessions” were identified by different symbols in the second and fourth panels of (C). (D) Individual data for the improvement of attentional modulation in neuronal populations of IPS and V1 with the untrained tasks measured by source-imaged SSVEP. Error bars denote SEM. *, and ** denote p < 0.05 and p < 0.01, respectively. Black asterisks indicate paired tests and colored asterisks indicate one-sample tests. Statistical analysis included all participants. Extended data for (A) and (C) with searching and counting errors are shown in Fig. S1.