Measurements of different cortical areas.

<p>The shaded portion of the brain schematic represents the area being measured. A) The mean area (in mm²) of the cortex (including the dorsolateral cortical sheet, pyriform cortex, and olfactory bulb), B) dorsolateral cortical sheet (DLCS), (C) S1, and (D) the percentage of cortex occupied by S1. Note that the size of the complete cortical sheet, DLCS and S1 increases with age. However, the relative size of S1 as measured using architectonic boundaries is unchanged throughout development and adulthood. * - significantly different from adult. † - significantly different from P20. ** - significantly different from P15. Mean + s.d.