FIGURE 4. Representation of ASGP-R _o for shunted and sham-operated rats. Top and bottom of each box delineate upper and lower quartile ranges, that is, points containing 25% of data points above and 25% of data points below median. Median is indicated by thicker horizontal line. Error bars are shown above or below each box. Dark circles are data points from individual rats. Asterisk indicates significant differences (P < 0.05).