Table 1.

Statistical analysis

	Spine type:	Thin		Mushroom		Stubby
		F value	P value	F value	P value	F value	P value
Spine density	PS effect	0.17	0.686	3.67	0.079	0.04	0.848
	CMS effect	3.56	0.084	5.33	0.040	3.63	0.081
	PSxCMS interaction	2.56	0.136	2.16	0.167	0.36	0.562
Spine ratio	PS effect	3.52	0.085	5.92	0.032	0.13	0.730
	CMS effect	0.89	0.365	0.22	0.647	0.34	0.573
	PSxCMS interaction	3.65	0.080	0.15	0.707	3.79	0.075

Results of statistical analysis (F and P values) with generalized linear model MANOVA for each spine type separately.