Table 2.
Coordinates for task-specific left hemisphere cortical activations in each subject group
| Control (n = 9) |
PPA (n = 9) |
|||||||
|---|---|---|---|---|---|---|---|---|
| SYN | LETTER | SYN > LETTER | LETTER > SYN | SYN | LETTER | SYN > LETTER | LETTER > SYN | |
| VIS | −27 −84 −9 (6.21) | −27 −84 −9 (6.49) | −36 −78 −18 (5.25) | −36 −78 −18 (6.12) | ||||
| FUS | −45 −54 −18 (7.35) | −36 −51 −24 (7.77) | −36 −51 −24 (6.63) | −36 −51 −21 (6.72) | ||||
| sTS | −51 −45 0 (4.06) | −60 −42 15 (3.87) | −63 −45 15 (4.58) | |||||
| aTL | −57 12 −3 (5.06) | −57 −9 21 (3.87) | ||||||
| iPL | −54 −60 24(4.14) | −45 −66 36 (4.23) | ||||||
| iPS | −33 −48 54(4.67) | −42 −36 45 (5.94) | −60 −27 33 (4.03) | −33 −51 45 (4.06) | −42 −36 48 (6.17) | |||
| sPL | −36 −42 57 (4.80) | |||||||
| PRE | −48 3 18 (4.89) | −54 3 33 (5.44) | −21 0 48 (4.34) | −45 3 39 (5.58) | −45 3 36 (5.66) | |||
| iFG | −45 42 −18 (5.82) | −51 42 −3 (3.44) | −57 18 −3 (6.06) | −57 15 −3 (5.18) | −42 36 −12 (6.39) | |||
SYN, Synonym word matching task; LETTER, letter matching task; VIS, extrastriate visual cortex; FUS, posterior fusiform gyrus; sTS, posterior superior temporal sulcus; aTL, anterior temporal lobe; iPL, inferior parietal lobule; iPS, intraparietal sulcus; sPL, superior parietal lobule; PRE, ventral premotor cortex; iFG, inferior frontal gyrus. Coordinates in bold are the control group maxima for the regions selected for DCM. Data selection was individualized for both PPA and control subjects to be within 15 mm of these maxima.