. 2021 Aug 18;41(33):7003–7014. doi: 10.1523/JNEUROSCI.1964-20.2021

Table 2.

Comparison of the relative changes of dendritic spine ultrastructures in control and sLTP conditions at early, intermediate, and late phases of sLTP

			PSD/spine volume^a	ASI/spine volume^a	nsASI / spine volume^b
Two-way ANOVA Source of variation	Interaction		F_(2,224) = 5.261 ^**p = 0.0059	F_(2,224) = 7.123 ^**p = 0.0010	F_(2,224) = 3.083 ^*p = 0.0478
	Phase (early/intermediate/late)		F_(2,224) = 5.579 ^**p = 0.0043	F_(2,224) = 7.809 ^***p = 0.0005	F_(2,224) = 5.475 ^**p = 0.0048
	Condition (control/LTP)		F_(1,224) = 23.90 ^****p < 0.0001	F_(1,224) = 3.378 p = 0.0674	F_(1,224) = 0.541 p = 0.4628
Tukey's multiple-comparisons test for phases	Control	Early vs intermediate	^*p = 0.0449	p = 0.9829	p = 0.0525
		Early vs late	p = 0.4387	p = 0.9643	p = 0.7308
		Intermediate vs late	p = 0.4027	p = 0.9986	p = 0.2324
	LTP	Early vs intermediate	p = 0.9860	p = 0.1981	p = 0.1038
		Early vs late	^*p = 0.0108	^***p = 0.0002	^*p = 0.011
		Intermediate vs late	^*p = 0.0096	^*p = 0.0309	p = 0.6218
Bonferroni's multiple-comparisons test on condition	Early		^****p < 0.0001	^**p = 0.0027	p = 0.8004
	Intermediate		^**p = 0.0036	p = 0.4996	p > 0.9999
	Late		p > 0.9999	p = 0.2046	p = 0.0506

^aData consistent with Gaussian distribution, two-way ANOVA performed directly.

^bData consistent with log-normal distribution, two-way ANOVA performed on log-transformed data.

*p < 0.05,

**p < 0.01,

***p < 0.001,

****p < 0.0001.