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William L. Randall. The Narrative Complexity of Our Past: In Praise of Memory's Sins. Theory Psychology 2010 20: 147

In the course of normal aging, memory suffers losses in effectiveness, which, for many, spark anxiety about the onset of dementia. Against the background of Daniel Schacter’s (2001) overview of “the seven sins of memory,” this paper proposes that the line between “normal” and “dementing” is less definite than we may think. Indeed, when the narrative complexity of memory—i.e., autobiographical memory—is taken into account, such sins are not merely necessary evils but outright advantages, essential to the capacity of memory to equip us with a sense of self that is capable of coping with the challenges of later life, if not vital to the development of “wisdom.” As an incipiently literary work, the text of memory is characterized by an assortment of inadequacies-cum-qualities which, like Schacter’s “sins,” enable it to carry out its all-important mission: namely, sponginess, impulsiveness, and blurriness; tangledness, backwardness, and deceptiveness; compressibleness, moodiness, and malleableness.
 

Hertzog, C., Kramer, A. F., Wilson, R. S., & Lindenberger, U. (2008). Enrichment Effects on Adult Cognitive Development: Can the Functional Capacity of Older Adults Be Preserved and Enhanced? Psychological Science In The Public Interest 2008 9:1-65

In this monograph, we ask whether various kinds of intellectual, physical, and social activities produce cognitive enrichment effects—that is, whether they improve cognitive performance at different points of the adult life span, with a particular emphasis on old age. We begin with a theoretical framework that emphasizes the potential of behavior to influence levels of cognitive functioning. According to this framework, the undeniable presence of age-related decline in cognition does not invalidate the view that behavior can enhance cognitive functioning. Instead, the course of normal aging shapes a zone of possible functioning, which reflects person-specific endowments and age-related constraints.