Age (years) | 28.43 ± 5.01 (16) | 27.93 ± 5.66 (16) | 0.32 |
Gender | 14 (M) | 12 (M) | 0.33 |
Ethnicity | 13 (W) | 13 (W) | 0.67 |
Weight (kg) | 74.95 ± 17.96 (16) | 80.53 ± 14.52 (16) | 0.21 |
Years of education | 16.68 ± 2.62 (16) | 12.75 ± 2.56 (16) | <0.01 |
Premorbid IQ (NART) | 117.43 ± 5.77 (12) | 115.4 ± 4.50 (16) | 0.31 |
Beck Depression Inventory | 1.18 ± 2.16 (16) | 6 ± 6.83 | 0.02 |
Inventory of Depressive Symptomatology | 4.13 ± 4.45 (15) | 10 ± 8.59 (16) | 0.02 |
Nicotine smokers (>5 cigarettes d) | 1 (16) | 7 (16) | 0.02 |
Cigarettes per day | 0.7 ± 1.65 (16) | 4.8 ± 4.8 (16) | <0.01 |
Cannabis (≥1 time per month) | 3 (16) | 9 (16) | 0.02 |
Alcohol use (>14 drinks per week) | 0 (16) | 1 (16) | 0.3 |
Purdue Pegboard Task | | | |
Dominant | 15.5 ± 1.89 (16) | 13.93 ± 2.97 (16) | 0.03 |
Nondominant | 14.62 ± 1.70 (16) | 14 ± 1.93 (16) | 0.34 |
Both hands | 12.31 ± 1.62 (16) | 11.5 ± 1.5 (16) | 0.15 |
Trails | | | |
A | 21.83 ± 4.96 (12) | 25.46 ± 4.50 (15) | 0.03 |
B | 45.75 ± 9.70 (12) | 51.06 ± 11.73 (15) | 0.1 |
Digit symbol substitution | 78.6 ± 12.2 (10) | 59.2 ± 14.8 (15) | <0.01 |
Written | 63.0 ± 11.4 (10) | 54.8 ± 8.6 (15) | 0.02 |
Eysenck Personality Inventory | | | |
Extroversion | 10.5 ± 5.05 (16) | 14.07 ± 4.32 (14) | <0.01 |
Neuroticism | 4.87 ± 3.24 (16) | 9.57 ± 3.56 (14) | <0.01 |
Impulsivity | 3.31 ± 1.66 (16) | 5.07 ± 2.05 (14) | 0.02 |