Correlations between activation for (A) monocular rivalry or (B) binocular rivalry and alternation rates.

<p>Correlations were performed between activation levels (% signal change minus baseline blank condition) and alternation rates for the six subjects obtained during the fMRI scan sessions. The correlations shown for monocular rivalry are for 36% contrast gratings, while the correlations for binocular rivalry are for 18% contrast gratings. Correlations are shown for areas V2 and V3 (average of left and right hemisphere), and in all four cases were statistically significant with correlation coefficients (r-values) of 0.82 and greater (p<0.05). For monocular rivalry, the activation levels increased with faster alternations, while the opposite effect occurred with binocular rivalry.