Fig. 6.

The mechanism underlying the discrepancy of binocular and monocular signals. A: disparity tuning of the reconstructed model was simulated with random-dot stereograms to explore the contribution of each element. Plotted here is the amplitude spectrum of the tuning function. Inset: indicates which components were used for each curve. The amplitudes were normalized so that the spectra are bounded between 0 and 1. The peak of the full model was shifted to the left of the model using only excitation. B: drifting sinusoidal grating was presented to the dominant eye of the reconstructed model. The SF tuning of the full model was shifted to the right of the excitatory-only model. C: for each reconstructed model of the cell, the peak in the SF tuning is plotted against the peak in the amplitude spectrum of the disparity tuning. As in the neuronal data, there is a systematic shift, with most points lying above the identity line. The filled dots represent cells with significant difference in the SF peaks.