Figure 3.

Cerebral regions significantly activated (threshold, P =.001) in nonhallucinators (upper) and hallucinators (lower). (a) Regions activated during the hearing condition compared with the hallucinate condition. In nonhallucinators, the maxima of significant foci were located at: {−54, −22, 4} (z = 4.82, 236 k, P = 0.004), {54, −20, 4} (z = 4.04, 111 k, P = 0.089). In the hallucinators, significant areas of activation were: {52, −6, −8} (z = 6.06, 1579 k, P < 0.001), {−52, −2 −8} (z = 5.45, 1007 k, P < 0.001), and {18, −16, −20} (z = 3.71, 171 k, P = 0.075 cluster level significance). (b) Regions activated during the hearing condition compared with baseline. In nonhallucinators, significant foci were located at: {−54, −22, 0} (z = 4.29, 220 k, P = 0.037), and {54, −18, 0} (z = 4.18, 382 k, P = 0.012 cluster level significance). In the hallucinators, significant areas of activation were: {64, −30, −4} (z = 5.71, 1347 k, P < 0.001), {−58, −26, 0} (z = 5.00, 556 k, P =.002), and {10, 30, −12} (z = 4.14, 228 k, P = 0.042 cluster level significance). Unless noted otherwise, P values refer to significance at the voxel level.