Table 1. Linear regression model.

Single-variable regression and multivariable-regression model coefficients, 95 % confidence intervals for the coefficients and R² values for the model. Areal variable was (MT = 0, LIP = 1). Attentional modulation defined as discussed in Results. Area and attentional modulation variables were each regressed against the single unit attentional latencies either separately (models 1 and 2) or together (model 3).

Model	Variables	Regression coefficient	95% C.I.	R2
__________Monkey M__________
1	Area (MT/LIP)	−62	−90 … −34	0.23
2	Attentional modulation (sp/s)	−2.2	−3.6 … −0.9	0.14
3	Area (MT/LIP)	−52	−81 … −24	0.28
	Attentional modulation (sp/s)	−1.5	−2.8 … −0.1
__________Monkey B__________
1	Area (MT/LIP)	−54	−85 … −22	0.19
2	Attentional modulation (sp/s)	−1.2	−2.5 … 0.04	0.07
3	Area (MT/LIP)	−49	−83 … −14	0.20
	Attentional modulation (sp/s)	−0.5	−1.8 … 0.8