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As an introduction to the special issue on neurocognitive factors underlying age effects, we discuss a number of recent developments in the literature on aging. The classic distinction between generalized and process-specific cognitive changes with old age has reappeared in the distinctions between the frontal lobe hypothesis and more differentiated views of neurocognitive aging. We argue that neurological decay in the frontal cortex has important implications for cognitive control, but that the frontal lobe hypothesis does not capture the plethora of changes that characterize aging and incorrectly suggests a unitary effect. [Copyright &y& Elsevier]

Examines developmental changes in one's ability to activate and inhibit speeded responses in the Netherlands. Comparison of the speeded task performance of four age groups; Developmental trajectories of the activation and inhibition of processing elements; Generality of inhibitory function; Age trends of stop performance.