Table 4.
Neuropsychological measures. Percentage error rates (standard error of the mean, SEM) on punishment (PUN) and reward (REW) A) reversal trials and B) non-reversal trials in the placebo (BAL) and acute tyrosine/phenylalanine depletion (ATPD) conditions. N.B. there was no effect of gender in the non-reversal trials; data stratified for illustration purposes only
| BAL | ATPD | |||
|---|---|---|---|---|
| PUN | REW | PUN | REW | |
| A) Reversal trials | ||||
| Male | 8.302 (2.84) | 10.985 (2.54) | 12.115 (3.23) | 8.122 (2.68) |
| Female | 9.465 (2.94) | 6.953 (2.64) | 5.676 (3.35) | 7.333 (2.78) |
| B) Non-reversal trials | ||||
| Male | 4.73 (0.98) | 5.65 (0.96) | 3.85 (0.98) | 4.90 (0.85) |
| Female | 4.05 (1.02) | 3.32 (0.99) | 5.45 (1.01) | 3.05 (0.88) |