a, Prediction scores (Pearson’s r; mean±s.e.m. results averaged
across all 5 subjects). RET denotes the retinotopically-organized early visual areas V1–V3,
and abbreviations for remaining regions-of-interest (ROIs) are listed in Supplementary Table 1. The average prediction score in
category-selective areas in occipito-temporal cortex (FFA, EBA, LO, TOS) is 0.48±0.07
(mean±s.d.); and the average prediction score in more anterior brain areas in frontal cortex
(FEF, SEF, and FO) is 0.49±0.07 (mean±s.d.). a, Tuning shift indices
(TSI; mean±s.e.m.) within functional ROIs. TSI is significantly greater than 0 in all ROIs
(Wilcoxon signed-rank test, p<10−6). Furthermore, TSI increases towards
relatively later stages of visual processing. c, Fraction of the overall tuning change
(mean±s.e.m.) explained by tuning changes for attended categories. d, Fraction
of the overall tuning change (mean±s.e.m.) explained by tuning changes for unattended
categories (i.e., excluding both ‘humans’ and ‘vehicles’). The
degree of tuning shift (i.e., TSI) is positively correlated with the fraction of variance explained
by tuning changes for attended categories (r =0.86±0.02, t-test,
p<10−6).