Figure 7.

Regression analysis. A, Responses recorded during the cue period, before training. Each dot represents the s₁ and s₂ regression coefficients of a single neuron. Blue dots represent neurons with significant s₁ coefficients (i.e., significantly modulated by the location of the cue); green dots represent neurons with no significant s₁ coefficients. B, Responses recorded during the second stimulus presentation period. In addition to blue and green dots, purple dots represent neurons with significant s₂ coefficients (i.e., significantly modulated by the location of the second stimulus). Orange dots represent neurons with both significant s₁ and s₂ coefficients. C, D, Equivalent responses of neurons recorded after training. Up to three outliers appeared beyond the axis range in each panel. M, Match; NM, non-match.