Key result
Advancing age linked to poorer Hayling and Brixton performance, partially explained by fluid intelligence.
Cross-Sectional (n=457)
Provides normative data for the Hayling and Brixton executive functioning tests in older adults, demonstrating that performance declines with age.
Age effects on Hayling and Brixton tests warrant age-adjusted norms; leaves open longitudinal mediation by fluid intelligence.
The individualized nature of the aging process underlines the need to have neuropsychological tests that are sensitive enough to distinguish normal changes associated with aging from those that are pathological. However, these measures are only useful if adequate normative data are available. Normative data are presented for two new executive functioning tasks, the Hayling and Brixton tests, which were administered as part of a neuropsychological battery to 457 typically aging older adults (53-90 years). Advancing age was associated with poorer performance on both the Hayling and Brixton tests. Results showed that fluid intelligence accounts for some but not all of the age-related variance on these tasks.
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Bielak et al. (2005) conducted a cross-sectional in Typically aging older adults (n=457). Advancing age was evaluated on Performance on the Hayling and Brixton tests. Advancing age was associated with poorer performance on both the Hayling and Brixton tests, with fluid intelligence accounting for some of the age-related variance.
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