Table 2.

Data summary for Experiment 2 - Persistence of B-induced structural alterations in PL following a 3-week recovery period

Treatment	Sham	200B	200B + Recovery
Animals	6	7	8
Neurons	40	53	60
Neurons/animal	6–7	7–8	7–8
Laminae Analyzed	Layers 2, 3, and 5	Layers 2, 3, and 5	Layers 2, 3, and 5
Spines	17,400	20,800	23,400
Overall Spine Density ± SEM	2.87 ± 0.07	2.62 ± 0.08*	2.61± 0.08*
Thin Spine Density ± SEM	2.31 ± 0.07	2.12 ± 0.07	2.11 ± 0.07
Mushroom Spine Density ± SEM	0.43 ± 0.01	0.4 ± 0.02	0.38 ± 0.02
Stubby Spine Density ± SEM	0.13 ± 0.01	0.11 ± 0.01	0.12 ± 0.01
Neurons/animal – dendritic arborization analysis	N/A	N/A	N/A
Apical dendrite length	N/A	N/A	N/A
Apical branch endings	N/A	N/A	N/A
Basal dendrite length	N/A	N/A	N/A
Basal branch endings	N/A	N/A	N/A

^*Indicates significant difference (p < 0.05) when compared to control treatment group.