Table 2.

Dopaminergic and cholinergic fiber density in the mPFC of rats.

	Infralimbic Ctx	Prelimbic Ctx	Cingulate Ctx
LAYER II/III
TH fiber density	1.56 ± 0.32†*‡	1.35 ± 0.30†*	0.79 ± 0.20†*
ChAT fiber density	3.53 ± 1.03†*‡	4.44 ± 1.00†*+	2.52 ± 0.43†*‡
LAYER V
TH fiber density	1.95 ± 0.39†‡	1.79 ± 0.48†*	0.79 ± 0.10†*
ChAT fiber density	2.50 ± 0.79†‡	3.24 ± 0.63†*‡	2.12 ± 0.37†*‡

All values are means ± SEM expressed in 10 ⁻²μm/μm³ from six animals.

Abbreviations: ChAT, choline acetyltransferase; Ctx, cortex; TH, tyrosine hydroxylase.

*Wilcoxon test, p < 0.05, two-tailed, ChAT vs TH fibers.

^†Wilcoxon test, p < 0.05, two-tailed, Region-specific difference.

^‡Wilcoxon test, p < 0.05, two-tailed, Layer-specific difference.