Table 1.

Total length (sum of all dendrites, μm) of basilar and apical dendrites on pyramidal neurons in the three PFC subareas of control and stressed rats. Hemispheric asymmetry refers to the dendritic length in the right compared to the left hemisphere (expressed as percentage). In the PL, chronic restraint stress reduced apical dendritic length exclusively in the right hemisphere (mean ± SEM). n is the number of animals from which data were derived.

		Control			Stress
		Total dendritic length (μm)		Hemispheric	Total dendritic length (μm)		Hemispheric
				asymmetry			asymmetry
		L	R	R as % of L	L	R	R as % of L
Basilar dendrites	IL	2928 ± 433	2471 ± 400	84%	2671 ± 441	2530 ± 463	95%
		n = 9	n = 7		n = 9	n = 9
	PL	2779 ± 135	2402 ± 333	86%	2742 ± 416	2257 ± 217	82%
		n = 5	n = 5		n = 11	n = 12
	ACx	3364 ± 406	3220 ± 564	96%	2811 ± 442	2265 ± 281	81%
		n = 9	n = 9		n = 7	n = 7
Apical dendrites	IL	2261 ± 295	2514 ± 383	111%	2204 ± 301	2880 ± 412	131%
		n = 9	n = 7		n = 9	n = 9
	PL	2066 ± 186	3289 ± 625	159%	2397 ± 444	1957 ± 170*	82%
		n = 5	n = 5		n = 11	n = 12
	ACx	2339 ± 212	2618 ± 283	112%	1956 ± 416	2269 ± 408	116%
		n = 9	n = 9		n = 7	n = 7

*P < .05 significant difference to control as determined by two-way ANOVA with Bonferroni's post hoc test. IL, infralimbic cortex; PL, prelimbic cortex; ACx, anterior cingulate cortex; L, left hemisphere; R, right hemisphere.