Table 2.

Quantifications of morphological parameters of GFP+ and GFP− filled cells. Comparisons between the two groups of filled cells were done using the parametric t-test when the normal test passed or the non-parametric Mann-Whitney test when the normal test failed.

	GFP+ filled neurons	GFP− filled neurons
Cell body perimeter (μm)	33.0±0.8 (n=46)	30.6±1.2 (n=21)	N.S.
Number of dendrites	3.5±0.3 (n=46)	2.9±0.5 (n=21)	N.S.
Total dendritic length (μm)	664.9±77.3 (n=28)	330.1±56.1 (n=14)	p=0.003
Mean axonal length (μm)	275.4±57.7 (n=19)	116.5±46.8 (n=5)	p=0.02
Dendritic branching number/cell	11.7±1.5 (n=28)	6.0±1.4 (n=14)	p<0.02
Number of dye-coupled cells/cell	3.8±0.6 (n=28)	1.3±0.3 (n=14)	p=0.02
Spines/cell	19.4±4.2 (n=28)	11.8+±2.8 (n=14)	N.S.