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. Author manuscript; available in PMC: 2009 Dec 21.
Published in final edited form as: J Comp Neurol. 2008 Mar 1;507(1):1141–1150. doi: 10.1002/cne.21588

Table 1.

Dendritic Spine Dimensions in Layers II/III Pyramidal Neurons in Dorsal mPFC

Percentile <25th (%) >75th (%)
Dimension Range 25th 75th Control Stress Control Stress
Volume (µm3)
    apical + basal 0.001 – 1.106 0.025 0.114 22.9 26.9* 26.9 23.6*
    apical 0.001 – 1.106 0.023 0.111 22.7 26.7* 26.4 23.5*
    basal 0.001 – 0.848 0.026 0.115 23.0 26.4 27.4 23.1*
Surface Area (µm2)
    apical + basal 0.005 – 6.258 0.524 1.429 22.9 26.9* 26.8 23.4*
    apical 0.005 – 6.258 0.511 1.421 22.8 27.1* 26.7 23.4*
    basal 0.005 – 5.543 0.543 1.443 23.0 26.7* 27.2 23.2*
Length (µm)
    apical + basal 0.109 – 3.000 0.353 0.695 24.0 25.9 25.9 25.1
    apical 0.152 – 3.000 0.350 0.692 24.0 25.9* 26.0 24.0*
    basal 0.109 – 1.998 0.358 0.700 23.8 26.0 25.6 24.6
Apical (>150 µm)
    volume (µm3) 0.001 – 0.526 0.023 0.111 21.7 27.8* 27.9 22.6*
    surface area (µm2) 0.006 – 4.756 0.504 1.421 21.9 27.8* 27.5 22.8*
    length (µm) 0.151 – 1.818 0.344 0.677 23.8 26.0* 26.1 24.1*

For each spine morphologic parameter, minimum and maximum values (range), 25th and 75th percentiles of the entire population, the percentage of spines below the 25th percentile, and above the 75th percentile, are presented for each group.

*

p < 0.001 by χ2-test (for comparisons of percentiles).