Table A.2. Descriptive Statistics for Neuropsychological Composite Variables and Hippocampal Volumes by Genotype.
| 5-HTTLPR | ||||
|---|---|---|---|---|
|
S/S or S/L (n = 34) |
L/L (n = 17) |
|||
|
| ||||
| Composite Variables | M (SD) | Range | M (SD) | Range |
|
| ||||
| CVLT-2 immediate | −0.10 (0.88) | −1.61 – 1.71 | 0.20 (0.99) | −1.11 – 2.15 |
|
| ||||
| CVLT-2 delay | −0.07 (1.06) | −2.59 – 1.40 | 0.14 (0.58) | −0.83 – 1.04 |
|
| ||||
| CVLT-2 retention | −0.11 (1.12) | −4.82 – 0.98 | 0.21 (0.69) | −0.55 – 2.14 |
|
| ||||
| CVLT-2 recognition | 0.00 (1.12) | −3.61 – 0.91 | −0.01 (0.74) | −1.63 – 0.91 |
|
| ||||
| RCFT recall | −0.12 (1.00) | −1.95 – 1.64 | 0.26 (0.91) | −1.96 – 1.68 |
|
| ||||
| RCFT recognition | −0.05 (1.10) | −2.28 – 1.86 | 0.10 (0.79) | −1.69 – 1.88 |
|
| ||||
| WMS-III Faces | 0.09 (0.82) | −2.27 – 1.86 | −0.18 (1.06) | −2.13 – 1.33 |
|
| ||||
| Right Hippocampus (cc3) | 2.46 (0.33) | 1.78-3.14 | 2.43 (0.43) | 1.94-3.70 |
|
| ||||
| Left Hippocampus (cc3) | 2.42 (0.32) | 1.75-3.00 | 2.52 (0.45) | 1.78-3.72 |
|
| ||||
| ICV (cc3) | 1572.71 (146.23) |
1316.48- 1845.26 |
1634.46 (142.02) |
1395.19- 1895.41 |
Notes: All scores are sample z-scores. CVLT-2=California Verbal Learning Test – Second Edition; RCFT= Rey Complex Figure Test; WMS-III=Wechsler Memory Scale- 3rd Edition. ICV=intracranial volume.