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. 2007 Jan 31;27(5):1139–1150. doi: 10.1523/JNEUROSCI.3846-06.2007

Table 1.

Analysis of cortical spines for double innervation using VGLUT immunoreaction

Layers	VGLUT1-innervated spines					VGLUT2-innervated spines
	Single innervation	Double innervation with			Total	Single innervation	Double innervation with			Total
		Symmetrical terminal	Asymmetrical terminal				Symmetrical terminal	Asymmetrical terminal
		Symmetrical terminal	VGLUT1⁺	VGLUT1⁻			Symmetrical terminal	VGLUT2⁺	VGLUT2⁻
I	79	1	1	2	83	77	15	0	0	92
	95.2%	1.2%	1.2%	2.4%	100%	83.7%	16.3%	0%	0%	100%
II/III	63	0	2	0	65	59	10	0	0	69
	96.9%	0%	3.1%	0%	100%	85.5%	14.5%	0%	0%	100%
IV	35	1	2	0	38	94	9^a	0	1	104
	92.1%	2.6%	5.3%	0%	100%	90.4%	8.7%	0%	1.0%	100%
V	59	0	0	0	59	81	6^b	0	1	88
	100%	0%	0%	0%	100%	92.0%	6.8%	0%	1.1%	100%
VI	39	0	0	0	39	65	3	0	0	68
	100%	0%	0%	0%	100%	95.6%	4.4%	0%	0%	100%
Total	280	2	5	2	289	376	43	0	2	421
	96.9%	0.7%	1.7%	0.7%	100%	89.3%	10.2%	0%	0.5%	100%

^aOne double-innervated spine head received two symmetrical inputs.

^bOne double-innervated spine received two symmetrical inputs on the head and neck.