Table 2.

Quantitative analysis of retrogradely labeled neurons in the occipital and temporal cortex in M1 and M2

		IPa		r-lSTS (TEa)		c-lSTS		Crown (TEm)		TEOd-TEpd		TEOv		V4
	TOT	Cells	%	Cells	%	Cells	%	Cells	%	Cells	%	Cells	%	Cells	%
M1
Green	20 495	462	2.3%	3074	15.0%	1832	9.0%	452	2.2%	12 268	59.9%	527	2.6%	261	1.3%
Red	5794	986	17.0%	320	5.5%	168	2.9%	260	4.5%	4981	86.0%	41	0.7%	11	0.2%
DL	1257	100	8.0%	114	9.1%	50	4.1%	48	3.8%	925	73.6%	14	1.1%	3	0.2%
Tot	27 546	1548		3508		2050		760		18 174		582		275
%DL/tot	4.6%	6.5%		3.2%		2.4%		6.3%		5.1%		2.4%		1.1%
%DL/g	5.8%	17.8%		3.6%		2.7%		9.6%		7.0%		2.6%		1.1%
%DL/r	17.8%	9.2%		26.3%		22.9%		15.6%		15.7%		25.5%		21.4%
M2
Green	14 689	559	3.9%	4388	30.1%	752	5.3%	3040	21.3%	4728	30.7%	174	1.2%	919	6.5%
Red	12 504	933	7.5%	1182	9.5%	281	2.2%	1646	13.2%	6113	48.9%	30	0.2%	1769	14.1%
DL	593	93	15.7%	84	14.2%	14	2.4%	166	28.0%	217	36.6%			15	2.5%
Tot	27 786	1585		5654		1047		4852		11 058		204		2703
%DL/tot	2.1%	5.9%		1.5%		1.3%		3.4%		2.0%				0.6%
%DL/g	3.9%	14.3%		1.9%		1.8%		5.2%		4.4%				1.6%
%DL/r	4.5%	9.1%		6.6%		4.7%		9.2%		3.4%				0.8%
Silver	1142			321	28.5%			603	52.4%	218	19.1%
DL s + g	272			79				141		52
DL s + r	50			5				21		25
Triple	8							5		3

Note: Total numbers and percentages are given by area or cortical region. % = percentage of one-color cells in one area or cortical region/total neurons of that color in the occipital and temporal cortex. Lower STS labeling was subdivided in rostral (r-lSTS) and caudal (c-lSTS); TEOv include labeling ventral to PMTS, clearly separated from the more densely labeled region dorsal to PMTS (TEp/TEO). It was not possible to define a border between TEp and TEO, so the quantitative analysis was performed for these 2 fields together.

%DL = The percentage of DL green/red neurons was calculated with respect to the total number of labeled cells, adding the 2 tracers (DL/tot) and for each tracer separately (DL/g, DL/r). In M2 silver cells were also counted (DLs + g = silver and green; DLs + r = silver and red).