2.5. Behavioral Inhibition System and Behavioral Activation System (BIS/BAS) Measure

The BIS/BAS scale was administered for each subject by using the Italian version of Carver and White Questionnaire [54, 55] to measure individual differences in personality traits (motivational tendency to approach or avoidance behaviors. It included 24 items (20 score-items and four fillers, each measured on a 4-point Likert scale) and four scores for each subscale BIS and BAS Reward Responsiveness (BAS RR), BAS Drive (BAS D), and BAS Fun Seeking (BAS FS). The mean values and standard deviations for each scale were, respectively, for the EXP Group BIS: 27.18 (SD 5.28); BAS D: 13.45 (SD 2.01); BAS FS: 14.45 (SD 2.54); BAS RR: 21.64 (SD 1.56). For CTR group BIS: 26.11 (SD 2.80); BAS D: 13.56 (SD 2.35); BAS FS: 13.33 (SD 2.29); BAS RR: 21.44 (SD 2.35).