Table 2.
Group means and standard deviations for experimental variables by circuit category
| PD (Mean/SD) N = 32 |
NC (Mean/SD) N = 29 |
|
|---|---|---|
| ACC | ||
| Apathy Scale | 29.5/9.5 | 23.4/5.2 |
| Initial Fluency | 34.9/8.0 | 41.9/8.4 |
| Stroop Color/Word (Incongruent) | 43.1/8.2 | 49.2/7.5 |
| Stroop Interference Index | 2.6/6.1 | 5.8/6.2 |
| DLPFC | ||
| Category Fluency | 33.8/10.2 | 41.8/12.6 |
| Digit Span | 5.7/1.8 | 7.0/2.4 |
| Executive Scale | 34.7/10.4 | 29.2/7.5 |
| Phonemic Fluency | 37.0/13.1 | 45.9/15.7 |
| Odd Man Out Test | 30.6/6.4 | 37.2/5.3 |
| Petrides Conditional Associate Learning – Criterion (no. trials) | 60.0/14.9 | 45.2/17.7 |
| Petrides Conditional Associate Learning – Errors (no.) | 43.4/24.9 | 27.2/19.1 |
| Spatial Span | 5.1/1.9 | 7.1/1.5 |
| Switching Fluency | 12.4/4.2 | 14.6/2.9 |
| Switching Fluency Accuracy | 11.1/4.2 | 14.0/3.3 |
| OFC | ||
| Beck Depression Inventory | 7.7/6.0 | 5.5/4.5 |
| Disinhibition Scale | 23.5/5.4 | 23.4/6.2 |
| Alternating Loops (no. errors) | .8/2.7 | .00/.00 |
| Twenty Questions Test – Abstraction Score | 23.2/11.7 | 33.5/13.9 |
| Twenty Questions Test – Total Questions | 33.8/11.6 | 26.2/5.9 |
| Twenty Questions Test – Weighted Score | 13.7/4.1 | 15.7/3.0 |
ACC = anterior cingulate cortex; DLPFC = dorsolateral prefrontal cortex; OFC = orbitofrontal cortex.