1. Hypoactivity in the dorsolateral prefrontal cortex (DLPFC) has been implicated in generating the negative symptoms of schizophrenia. Abnormalities in the left inferior parietal lobe (IPL) have also been associated with negative symptoms. We hypothesize that high frequency rTMS applied to the hypoactive left DLPFC or to the left IPL in individuals with schizophrenia will reduce negative symptom severity more than sham (placebo) rTMS as assessed by the Positive and Negative Syndrome Scale (PANSS) negative symptoms subscale.