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. 2017 Jul 14;44(3):535–541. doi: 10.1093/schbul/sbx092

Fig. 3.

Fig. 3.

Correlation between volume of left prefrontal cortex and PANSS Positive and Negative scores in schizophrenia patients. In smokers with schizophrenia, left prefrontal cortex volume was correlated negatively with PANSS Positive (r = −.371, P = .044) (A) and PANSS Negative (r = −.368, P = .045) (B), while positive correlations between left prefrontal cortex volume and PANSS Positive (r = −.320, P = .085) were close to levels of statistical significance (A). There was no significant correlation between left prefrontal cortex volume and PANSS Negative (r = −.179, P = .344) (B). ○ and ...... are nonsmokers with schizophrenia (n = 30); ● and ------ are smokers with schizophrenia (n = 30).