Table 1.
Timeline of Longitudinal Studies Allowing for Examination of the Developmental Trajectory of the Cerebellum
| Study | Subjects, n | Age Range at Enrollment, Years | Scan Frequency | Sites, n | Year Enrollment Started |
|---|---|---|---|---|---|
| Tiemeier et al. (2) | 50 | 5–24 | 3× at 2-year intervals | 1 | 1989 |
| Pfefferbaum et al. (1) (NCANDA Study) | 831 | 12–21 | Annual | 5 | 2013 |
| Hagler Jr et al. (4) (ABCD Study) | 11,878 | 9–10 | Biennial | 21 | 2016 |
ABCD, Adolescent Brain Cognitive Development; NCANDA, National Consortium on Alcohol and Neurodevelopment in Adolescence.