TABLE 1
FROM:
Acute Tryptophan Depletion in Healthy Volunteers Enhances Punishment Prediction but Does not Affect Reward Prediction
Roshan Cools, Oliver J Robinson and Barbara Sahakian
BACK TO ARTICLETable 1. Demographic and Trait Characteristics
| Questionnaire | Range | Mean (SD) |
|---|---|---|
| BIS | 13–22 | 19 (2.3) |
| BAS | 29–48 | 37.6 (5.6) |
| EPQ—psychoticism | 1–7 | 3.6 (2.4) |
| EPQ—extraversion | 3–13 | 9.0 (2.7) |
| EPQ—neuroticism | 0–9 | 3.6 (3.0) |
| EPQ—lie | 1–8 | 3.8 (2.5) |
| IVE—impulsiveness | 2–13 | 8.4 (3.5) |
| IVE—venturesomeness | 3–15 | 10.3 (3.7) |
| IVE—empathy | 7–16 | 12.7 (2.5) |
| BDI | 2–10 | 4.8 (2.4) |
| Barratt impulsiveness scale | 47–78 | 65.7 (10.4) |
Abbreviations: BAS, behavioral activation system score; BDI, Beck Depression Inventory; BIS, behavioral inhibition system score from the BIS/BAS scale; EPQ, Eysenck Personality Questionnaire; IVE, Impulsiveness Venturesomeness Empathy questionnaire.
