TABLE 3.

Talairach coordinates for parietal cortical areas

Subject	V3A	V3B	V7	IPS1	IPS2
MAS	±22, −89, 19	±28, −89, 12	±24, −81, 24	±25, −76, 42	±20, −76, 53
JM	±25, −84, 13	±30, −86, 8	±25, −81, 24	±24, −78, 37	±22, −73, 40
DBR	±19, −86, 19	±24, −90, 17	±28, −81, 22	±23, −73, 31	±17, −75, 43
DJH	±22, −91, 25	±29, −91, 20	±27, −82, 30	±22, −77, 46	±18, −78, 54
Mean	±22, −87, 19	±28, −89, 14	±26, −81, 25	±23, −76, 39	±19, −75, 48
SD	5, 3, 6	6, 5, 5	5, 2, 4	5, 5, 6	8, 6, 8

Cortical areas V3A, V3B, and V7 were defined using stimulus-based retinotopic mapping and were restricted based on visual responses to a contrast-reversing checkerboard stimulus that had the same shape and size as the annulus used for attention mapping. IPS1 and IPS2 boundaries were defined based only on the responses during the attention-mapping task.