Fig. 2

Characterization of responses in single neurons. a Anti-correlation between responses of neurons in masked and unmasked conditions. The mean responses of cells in the unmasked condition, μu, are anti-correlated with the responses in the masked condition, μm. The inset shows the distribution of \(\log _2\left( {\mu _m/\mu _u} \right)\). Cells at the extreme of this distribution are termed grating (shaded green) and plaid (shaded pink) neurons. b Preferred orientation and average tuning of grating and plaid cells in unmasked and masked conditions. The histograms show the distribution of the preferred orientation of the neurons in each case. The red traces show the average tuning of neurons in each condition. The y-axis is labeled by cell count (in black) or by the amplitude of the responses (in red)