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1. How schema knowledge influences memory in older adults: Filling in the gaps, or leading memory astray?

   https://doi.org/10.1016/j.cognition.2024.105826  

   Ramey, Michelle M; Yonelinas, Andrew P; Henderson, John M (September 2024, Cognition)

   Age-related declines in episodic memory do not affect all types of mnemonic information equally: when to-be-remembered information is in line with one’s prior knowledge, or schema-congruent, older adults often show no impairments. There are two major accounts of this effect: One proposes that schemas compensate for memory failures in aging, and the other proposes that schemas instead actively impair older adults’ otherwise intact memory for incongruent information. However, the evidence thus far is inconclusive, likely due to methodological constraints in teasing apart these complex underlying dynamics. We developed a paradigm that separately examines the contributions of underlying memory and schema knowledge to a final memory decision, allowing these dynamics to be examined directly. In the present study, healthy older and younger adults first searched for target objects in congruent or incongruent locations within scenes. In a subsequent test, participants indicated where in each scene the target had been located previously, and provided confidence-based recognition memory judgments that indexed underlying memory, in terms of recollection and familiarity, for the background scenes. We found that age-related increases in schema effects on target location spatial recall were predicted and statistically mediated by age-related increases in underlying memory failures, specifically within recollection. We also found that, relative to younger adults, older adults had poorer spatial memory precision within recollected scenes but slightly better precision within familiar scenes—and age increases in schema bias were primarily exhibited within recollected scenes. Interestingly, however, there were also slight age-related increases in schema effects that could not be explained by memory deficits alone, outlining a role for active schema influences as well. Together, these findings support the account that age-related schema effects on memory are compensatory in that they are driven primarily by underlying memory failures, and further suggest that age-related deficits in memory precision may also drive schema effects. 

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2. Misinformation reminders enhance belief updating and memory for corrections: the role of attention during encoding revealed by eye tracking

   https://doi.org/10.1186/s41235-025-00649-y  

   Wellons, Bayley_M; Wahlheim, Christopher_N (July 2025, Cognitive Research: Principles and Implications)

   Abstract Misinformation exposure can cause inaccurate beliefs and memories. These unwanted outcomes can be mitigated when misinformation reminders—veracity-labeled statements that repeat earlier-read false information—appear before corrections with true information. The present experiment used eye tracking to examine the role of attention while encoding corrective details in the beneficial effects of reminder-based corrections. Participants read headlines in a belief-updating task that included a within-subjects manipulation of correction format. They first rated the familiarity and veracity of true and false headlines (Phase 1). Then, they read true headlines that corrected false headlines or affirmed true headlines (Phase 2). The true headlines appeared (1) without veracity labels, (2) with veracity labels, or (3) with misinformation reminders and veracity labels. Finally, participants re-rated the veracity of the Phase 1 headlines and rated their memory for whether those headlines were corrected in Phase 2 (Phase 3). Reminder-based corrections led to the greatest reduction in false beliefs, best high confidence recognition of corrections, and earliest eye fixations to the true details of corrections during encoding in Phase 2. Corrections remembered with the highest confidence rating were associated with more and earlier fixations to true details in correction statements in Phase 2. Collectively, these results suggest that misinformation reminders directed attention to corrective details, which improved encoding and subsequent memory for veracity information. These results have applied implications in suggesting that optimal correction formats should include features that direct attention to, and thus support encoding of, the contrast between false and true information. 

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3. Greater sleep variance related to decrements in memory performance and event-specific neural similarity: a racially/ethnically diverse lifespan sample

   Hokett, E; Mirjalili, S; Duarte, A (October 2022, Neurobiology of aging)

   Successful memory performance depends on overlap between neural representations at encoding and retrieval. With older age, neural similarity, memory performance, and sleep quality decline. Regardless of age, racial/ethnic minorities tend to experience poor sleep, which may contribute to poor memory. Previous studies have not investigated memory performance, neural similarity, sleep quality, and age in diverse participants. Here, we recruited racially/ethnically diverse adults across the lifespan and examined night-to-night sleep quality in relation to memory performance and encoding-retrieval similarity. We employed item-specific, representational similarity analysis (not confounded by effort, word perception, or differences in electroencephalography signal amplitude) to assess neural similarity for intact and recombined paired associates. Greater sleep variance and poorer memory performance were more strongly associated with older age. Interestingly, sleep variance was positively associated with neural similarity for intact pairs. This relationship was stronger with younger age and for racial/ethnic minorities. For recombined pairs, greater sleep variance was associated with reduced neural similarity. Thus, varied sleep may induce greater reliance on familiarity, while consistent sleep may support recollection. 

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4. Age-related differences in the temporal dynamics of spectral power during memory encoding

   https://doi.org/10.1371/journal.pone.0227274  

   Healey, M Karl; Kahana, Michael J (January 2020, PloS one)

   We examined oscillatory power in electroencephalographic recordings obtained while younger (18-30 years) and older (60+ years) adults studied lists of words for later recall. Power changed in a highly consistent way from word-to-word across the study period. Above 14 Hz, there were virtually no age differences in these neural gradients. But gradients below 14 Hz reliably discriminated between age groups. Older adults with the best memory performance showed the largest departures from the younger adult pattern of neural activity. These results suggest that age differences in the dynamics of neural activity across an encoding period reflect changes in cognitive processing that may compensate for age-related decline. 

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5. A dual mechanisms of control account of age differences in working memory.

   https://doi.org/10.1037/pag0000817  

   Xu, Chenlingxi; Chao, Chang-Mao; Rose, Nathan S (June 2024, Psychology and Aging)

   Age-related differences in working memory (WM) can be large, but the exact sources are unclear. We hypothesized that young adults outperform older adults on WM tasks because they use controlled attention processes to prioritize the maintenance of relevant information in WM in a proactive mode, whereas older adults tend to rely on the strength of familiarity signals to make memory decisions in a reactive mode. We used a WM task that cued participants to prioritize one item over others and presented repeated lure probes that cause errors when one is engaged in a reactive mode. Results showed that, relative to young adults with full attention available to use proactive control during the delays, older adults with full attention (and young adults with divided attention) during the delays had exaggerated error rates to repeated lure probes compared to control probes. When the amount of proactive interference was increased (by repeating stimuli across trials), older adults were able to engage in proactive control, and this eliminated their exaggerated error rate (while young adults with divided attention could not). These results provide evidence for a dual mechanisms of control account of age differences in WM. 

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