1. American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed., text rev.). Washington, DC: American Psychiatric Association.
2. Andres, P., & van der Linden, M. (2001). Age-related differences in supervisory attentional system functions. Journal of Gerontology: Psychological Science, 55B, P373–P380.
3. Ardila, A. (2007). Normal aging increases cognitive heterogeneity: Analysis of dispersion in WAIS-III scores across age. Archives of Clinical Neuropsychology, 22, 1003–1011.
4. Baltes, P. B., & Lindenberger, U. (1997). Emergence of a powerful connection between sensory and cognitive functions across the adult life span: A new window to the study of cognitive aging? Psychology and Aging, 12, 12–21.
5. Barkley, R. A. (2011). Barkley deficits in executive functioning scale (BDEFS). New York, NY: Guilford Press.