Table 2.
The slope parameter indicates the change in cortical thinning accompanying each increase of one symptom of ADHD. The negative values indicate that increasing numbers of ADHD symptoms are accompanied by an increase in the pace of cortical thinning. The standard error of the slope parameter and associated t value are given along with the spatial extent of the regions shown in Figure 2.
| Slope parameter (mm/year) |
Standard error (mm/year) |
t | P | Cluster extent (number of vertices) |
|
|---|---|---|---|---|---|
| TOTAL SYMPTOMS | |||||
| Right hemisphere | |||||
| Medial wall | -0.00090 | 0.0002 | -3.4 | 0.0007 | 1373 |
| Dorsolateral prefrontal cortex | -0.0010 | 0.0003 | -2.9 | 0.004 | 365 |
| Inferior parietal lobule | -0.00084 | 0.0002 | -2.3 | 0.02 | 81 |
| Left hemisphere | |||||
| Medial wall | -0.0010 | 0.0002 | -4.1 | 0.0001 | 2249 |
| Postenctral gyrus | -0.0087 | 0.0002 | -3.3 | 0.0009 | 359 |
| INATTENTIVE SYMPTOMS | |||||
| Right hemisphere | |||||
| Medial wall | -0.0018 | 0.0004 | -4.1 | 0.0001 | 3131 |
| Dorsolateral prefrontal cortex | -0.0019 | 0.0006 | -3.1 | 0.002 | 415 |
| Inferior parietal lobule | -0.0014 | 0.0005 | -2.2 | 0.01 | 50 |
| Left hemisphere | |||||
| Medial wall | -0.0019 | 0.0004 | -4.4 | 0.0001 | 4694 |
| Postcentral gyrus | -0.0017 | 0.0004 | -4.1 | 0.0001 | 1353 |