Table 5. Multivariate Regression Analysis of the Relationship between Component Activity and Attentional (cocStroop) or Cognitive (cStroop) Bias, Controlling for the Effects of Variables of No Interest.
| Variable | IC 6 | IC 12 | IC 19 | IC 21 |
|---|---|---|---|---|
| Intercept | −2.88 (0.97)** | −0.57 (1.33) | −0.086 (0.40) | −1.38 (0.92) |
| RT: cocaine-neutral trials | −4.96 (2.04)* | 7.84 (2.51)** | 4.99 (2.44)* | — |
| RT: incong–cong trials | — | — | — | 4.03 (1.67)* |
| Age | 0.06 (0.02)** | 0.012 (0.03) | — | — |
| Gender | — | 0.32 (0.50) | — | — |
| Cocaine use in past 7 days | — | — | −0.10 (0.10) | −0.10 (0.06) |
| BIS-11: total score | — | — | — | 0.021 (0.01) |
| R2 | 0.3168 | 0.2146 | 0.1522 | 0.2299 |
Abbreviations: BIS, Barratt Impulsiveness Scale; Cong, stimulus-congruent trials; IC, independent component; Incong, stimulus-incongruent trials; RT, reaction times.
*p<0.05, **p<0.01.