Cover Picture: Normal sex differences in structural brain volumes, relative to cerebrum size, in cortical and subcortical regions across the entire brain were assessed using anatomically driven MRI methodology. Women had significantly larger relative volumes in the majority of frontal and medial paralimbic brain regions than men (shown in shades of red/pink). Men had larger relative volumes in medial frontal cortex and angular gyrus (shown in shades of blue), and the amygdala and hypothalamus (not shown on the cover). (The brighter the color, the greater the sex effect size.) Analyses suggested indirect evidence for the role of sex steroid hormones on normal sexual dimorphisms. See Goldstein et al., pp. 490–497.
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