Brain Scans etc

Figure 17.1

Figure 17.1. Cortical lesion sites associated with neglect. Most anatomoclinical correlation studies show that the lesion responsible for unilateral spatial neglect involves the right inferior parietal lobule (BA 39 and BA 40: red area), particularly the supramarginal gyrus at the temporoparietal junction (black-grey area). Neglect after right frontal damage is less frequent and usually associated with lesions to the frontal premotor cortex, particularly to its more ventral parts (BA 44 and ventral BA 6: blue area). Damage to white-matter fibre bundles that provide connections between the posterior parietal region and the temporoparietal junction, and the frontal premotor cortex, are also relevant (arrow). Neglect may be also associated with damage to the more dorsal and medial regions of the frontal premotor cortex, and to the superior temporal gyrus (azure areas) (modified from Halligan et al., 2003). BA: Brodmann area.

Back to index of Brain Scans