Working memory mediates the short-term maintenance of information. Virtually all empirical research on working memory involves investigations of working memory for verbal and visual information. Whereas aging is typically associated with a deficit in working memory for these types of information, recent findings suggestive of relatively well-preserved long-term memory for emotional information in older adults raise questions about working memory for emotional material. This study examined age differences in working memory for emotional versus visual information. Findings demonstrate that, despite an age-related deficit for the latter, working memory for emotion was unimpaired. Further, older adults exhibited superior performance on positive relative to negative emotion trials, whereas their younger counterparts exhibited the opposite pattern. Keywords emotion; working memory; affect; cognition; positivity effect In recent years, research on aging has begun to challenge long-standing assumptions about ubiquitous decline and paint a more nuanced characterization of psychological functioning in later life. To be clear, we do note that decline is well documented, notably so in cognitive processing capacity, also known as fluid intelligence (see Craik & Salthouse, 2000). However, decline is less evident in other types of cognitive processes, for instance, those that require procedural memory, world knowledge, or cultural knowledge, also known as crystallized intelligence (see Schaie, 2005). Research also suggests that emotional functioning is largely spared from aging decline (see Carstensen, Mikels, & Mather, in press). For example, few age differences are apparent on measures of subjective reports and observations of facial expressions during controlled laboratory tasks (e.g., Levenson, Carstensen, Friesen, & Ekman, 1991;Tsai, Levenson, & Carstensen, 2000) and even in autonomic responding when stimuli are highly age relevant (Kunzmann & Grühn, 2005). Moreover, studies of everyday emotional experience suggest that a relatively positive emotional balance is associated with age (Carstensen, Pasupathi, Mayr, & Nesselroade, 2000;Labouvie-Vief & Medler, 2002;Mroczek Correspondence concerning this article should be addressed to Joseph A. Mikels, Department of Psychology, Stanford University, Jordan Hall, Building 420, Stanford, CA 94305-2130. jmikels@psych.stanford.edu. & Kolarz, 1998). Memory for emotional material is relatively good in old age (Charles, Mather, & Carstensen, 2003;Kensinger, Brierley, Medford, Growdon, & Corkin, 2002), and although there are some documented age deficits on experimental measures of emotion that place significant demands on deliberative processing (Labouvie-Vief & Diehl, 2000), measures of emotional aging that are less cognitively demanding reliably follow a positive trajectory.
NIH Public AccessGiven such observations, questions follow about the ways diverging trajectories interact. In this report, we consider working memory for emotional material. On the one hand, there is consi...