We give special thanks to Melanie Wilds and Steve Hegedus who tested participants and assisted in data scoring, to all participants of this study, and to support from the following grants: MH01727, NARSAD, MH62134, HD35469, MH01433.
Maturation of Cognitive Processes From Late Childhood to Adulthood
Article first published online: 15 SEP 2004
Volume 75, Issue 5, pages 1357–1372, September 2004
How to Cite
Luna, B., Garver, K. E., Urban, T. A., Lazar, N. A. and Sweeney, J. A. (2004), Maturation of Cognitive Processes From Late Childhood to Adulthood. Child Development, 75: 1357–1372. doi: 10.1111/j.1467-8624.2004.00745.x
- Issue published online: 15 SEP 2004
- Article first published online: 15 SEP 2004
To characterize cognitive maturation through adolescence, processing speed, voluntary response suppression, and spatial working memory were measured in 8- to 30-year-old (N=245) healthy participants using oculomotor tasks. Development progressed with a steep initial improvement in performance followed by stabilization in adolescence. Adult-level mature performance began at approximately 15, 14, and 19 years of age for processing speed, response inhibition, and working memory, respectively. Although processes developed independently, processing speed influenced the development of working memory whereas the development of response suppression and working memory were interdependent. These results indicate that processing speed, voluntary response suppression, and working memory mature through late childhood and into adolescence. How brain maturation specific to adolescence may support cognitive maturation is discussed.