“…Source memory tasks, by definition, make heavy demands on context memory, as do serial-order memory tasks and recall. The hypothesis that aging leads to disproportionate declines in context processing was first formulated in the early 1980s (e.g., Burke & Light, 1981;Rabinowitz & Ackerman, 1982) and continues to be a central theme of research on cognitive aging (e.g., Braver et al, 2001). Age differences in memory tasks tend to increase as a function of the tasks' reliance on memory for contextual detail (for empirical and theoretical reviews, see Light, 1996;2000b;Spaniol & Bayen, 2004;Spencer & Raz, 1995;Verhaeghen, Marcoen, & Goossens, 1993;Zacks et al, 2000).…”