. 2014 Dec 10;9(12):e113694. doi: 10.1371/journal.pone.0113694

Table 4. Clusters of placebo-cigarette [¹¹C]carfentanil BP_ND to current nicotine-dependence and smoking statuses correlations in smokers.

N/P	Peak coordinates	Peak t-values	Cluster volumes	Anatomical descriptions
Placebo-cigarette scan [¹¹C]carfentanil BP_ND vs. FTDN
N	−62 −2 −8	10.31	1.01 mL	Lt. superior temporal lobe (73.5%) Lt. precentral gyrus (22.1%)
N	62 4 2	7.47	0.54 mL	Rt. superior temporal lobe (62.5%) Rt. precentral gyrus (29.2%)

Significance criteria: p<0.001, uncorrected and volume>0.4 mL

P and N in the first column stand for clusters of positive and negative correlations, respectively.

Percentages in the last column indicate anatomical constituents of clusters.

Table 4. Clusters of placebo-cigarette [11C]carfentanil BPND to current nicotine-dependence and smoking statuses correlations in smokers.