Figure 2.

Progressive increase in severity of neglect following transient focal cerebral ischemia. A behavioral test of orienting to visual and tactile stimuli presented to the right or left sides was first performed in separate groups of rats either 2 (n = 11) or 40 days (n = 10) following transient MCA occlusion. The group tested at 40 days was re-tested at 90 days (n = 11). Neglect ratio was calculated using the following formula: (contralateral score - ipsilateral score)/(contralateral + ipsilateral score). A more negative score indicates less responding to contralateral sensory stimulation (a) Neglect ratio ± SE, (b) average number of inappropriate responses ± SE. * P < 0.05 for individual comparison within 2-way ANOVA