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Fig. 7. Quantification of dendritic parameters of adult pyramidal neurons of layers
II/III, V and VI from active (white bars) and activity-deprived (hatched bars)
OTC. Neither length nor segments numbers of apical and basal dendrites
differed significantly. By contrast, spine density was significantly increased
on apical and basal dendrites of pyramidal cells from layers II/III and VI.
**=P<0.01; ***=P<0.001. The numbers in the bars
represent the number of dendrites analyzed. For apical dendrites, they equal
the number of neurons analyzed.