Commenting on neuroimaging (letter), . The first sentence of the second paragraph should read: “In our paper we demonstrated that during word generation people with schizophrenia exhibited a ‘functional disconnectivity’ between neural activity in dorsolateral prefrontal and anterior cingulate cortices relative to controls and those at genetic risk (not only to controls, as stated by Crow)”

Nicotine reduction: effectiveness of bupropion (letter), . The fourth sentence of the final paragraph should read: “In addition, it may be useful to evaluate whether 150 mg of bupropion daily may be just as effective as 300 mg daily”.