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. Author manuscript; available in PMC: 2014 Feb 26.
Published in final edited form as: J Comp Neurol. 2010 Jun 15;518(12):2382–2404. doi: 10.1002/cne.22339

TABLE 3.

ANOVA Values for Stimulation Parameters1

Source Sum of squares d.f. Mean square F P value
1. Cohort 1.6991 4 0.42476 6.15 0.0001
2. Stimulation hours 0.0749 2 0.03743 0.54 0.582
3. No. of electrodes 0.1179 2 0.05897 0.85 0.4263
Error 51.6116 747 0.06909
Total 55.7703 757
1

ANOVA values show that early implantation is the main variable determining PSD size.