Table 4.

Basic measurements from OI response maps and labeling experiments

Measurement	Cat area 17	Monkey area V1
Active region density  (mean ± standard deviation)	1.0 ± 0.2/mm2	2.0 ± 0.2/mm2
Number of active regions in OI map  (mean ± standard deviation)	6.1 ± 3.2	59.2 ± 4.7
Number of patches in injection  (mean ± standard deviation)	13.4 ± 2.1	13.1 ± 6.8
Interdomain distance  (mode, 95% CI of mode)	1.01 [0.95–1.07] mm	0.74 [0.71–0.77] mm
Interdomain distance  (mean ± standard deviation)	1.05 ± 0.25 mm	0.74 ± 0.18 mm
Interpatch distance  (mode, 95% CI of mode)	0.90 [0.81–1.03] mm	0.50 [0.41–0.59] mm
Interpatch distance  (mean ± stdandard deviation)	1.06 ± 0.39 mm	0.52 ± 0.17 mm
Interdomain neighbor angles  (mode, 95% CI of mode)	57.8 [49.5–60.3] degree	60.6 [54.9–67.5] degree
Interpatch neighbor angles  (mode, 95% CI of mode)	66.2 [58.5–83.7] degree	61.4 [54.9–65.7] degree

Note: See Tables 2 and 3 for details of the numbers of maps and injections obtained. We have reported modes for our measured distributions of interneighbor angles because the distributions themselves are highly skewed. CIs were estimated using a bootstrap analysis. See Figures 8 and 9 for plots of the full distributions. n = 13 injections and 266 response maps (cat area 17); 27 injections and 16 response maps (monkey V1).