Table 1.

Spatially selective populations in LIP/MIP, FEF, and SC

		No. of Spatially Selective Cells
	No. of Recorded Cells	Sensory period	Motor period	Sensory and motor period
LIP/MIP	275	125 (45%)	121 (44%)	69 (25%)
FEF	324	174 (54%)	160 (49%)	117 (36%)
SC	179	162 (91%)	161 (90%)	153 (85%)

For each area (LIP/MIP, FEF, and SC) and each time window (sensory and motor periods; see materials and methods), the number of spatially selective cells is indicated, with percentages in parentheses. A cell was considered spatially selective if its response was modulated by target location in either head- or eye-centered coordinates, according to two 2-way ANOVAs with target location and fixation position as the two factors (one 2-way ANOVA for target locations defined with respect to the eye and one 2-way ANOVA for target locations defined with respect to the head; target location main effects, P < 0.05; interaction terms, P < 0.05).