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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: Drug Alcohol Depend. 2017 Jun 28;178:363–371. doi: 10.1016/j.drugalcdep.2017.05.025

Table 2.

Exploratory factor analysis of network engagement

Factor 1: “Sensory Coordination” Factor 2: “Outcome Sensitivity” Factor 3: “Executive Decisions” Factor 4: “Sustained Control” Factor 5: “Motivated Decisions”
Factor loadings
Outcome (before Quit > before Chase)
  Medial frontal 0.07 −0.01 0.08 0.68 −0.12
  Right fronto-parietal 0.11 0.11 −0.07 0.77 0.06
  Middle-frontal 0.64 −0.11 0.16 0.40 0.08
  Striato-amygdala −0.22 0.59 0.11 −0.10 −0.05
  Auditory 0.77 −0.12 0.01 0.31 −0.30
  Lingual gyrus (visual) 0.74 0.02 0.04 0.30 −0.27
  Occipito-parietal (visual) 0.87 0.00 0.02 0.04 0.19
  Middle-occipital (visual) 0.80 0.12 0.00 0.03 0.17
Decision-making (Quit > Chase)
  Medial frontal 0.27 −0.31 0.67 0.18 0.08
  Right fronto-parietal 0.01 0.39 0.58 0.46 0.12
  Middle-frontal 0.08 0.79 0.16 0.18 −0.09
  Striato-amygdala −0.20 −0.03 0.00 0.01 0.83
  Auditory 0.06 0.14 0.80 0.09 0.11
  Lingual gyrus (visual) 0.46 0.18 0.62 0.08 0.21
  Occipito-parietal (visual) 0.40 0.21 −0.16 −0.10 0.65
  Middle-occipital (visual) 0.00 0.81 −0.06 0.18 −0.02
PCA metrics
 % Variance 21.9 12.7 11.9 10.9 9.1
 Cronbach’s α 0.83 0.64 0.63 0.51 0.37
Group factor scores, (SD)
 Healthy comparison 0.07 (0.96) −0.09 (0.59) 0.04 (1.04) −0.38 (1.03) 0.08 (1.04)
 Gambling disorder −0.06 (1.14) −0.17 (1.45) 0.12 (1.14) 0.27 (0.99) 0.12 (0.81)
 Cocaine-use disorder −0.01 (0.89) 0.36 (0.58) −0.24 (0.69) 0.21 (0.83) −0.28 (1.16)
 Group effect, F (P) 0.10 (0.90) 1.65 (0.20) 0.71 (0.49) 3.51 (0.04) 0.95 (0.39)