Abstract
Research indicates that episodic memory processes are required to access specific autobiographical events and the details encompassed by a single event for several functions, including remembering and personal problem solving. Since healthy cognitive aging is associated with episodic memory decline, we hypothesized that older adults would be impaired at producing specific autobiographical events and details in service of these two functions. To test this hypothesis, younger and older adults completed two tasks (generation and elaboration) across two experiments (autobiographical memory and problem solving). The generation task required participants to produce multiple specific event memories or solutions to cues within a 90-s time period. The elaboration task required participants to select a single memory or solution to describe in detail. We quantified the number of specific and non-specific responses provided during the generation task and scored the descriptions from the elaboration task for the number of episodic (internal) and non-episodic (external) details. Across experiment, older adults produced fewer specific responses (generation task) and fewer internal details (elaboration task) than younger adults. In addition, older adults generated more non-specific responses and external details than younger adults for the memory but not the problem-solving experiment. A correlational analysis showed that the number of specific responses (generation) and internal details (elaboration) correlated for the memory but not for the problem-solving experiment. These results show that age-related episodic memory decline impairs access to specific autobiographical events and detail information when remembering and problem solving, but that additional cognitive factors impact how these age declines present when solving problems.
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