Association of white matter hyperintensities and clinical vascular burden with depressive symptoms in Black older adults.

OBJECTIVES: Black older adults have a higher vascular burden compared to non-Hispanic White (NHW) older adults, which may put them at risk for a form of depression known as vascular depression (VaDep). The literature examining VaDep in Black older adults is sparse. The current study addressed this important gap by examining whether vascular burden was associated with depressive symptoms in Black older adults. METHODS: Participants included 113 Black older adults from the Healthy Brain Project, a substudy of the Health, Aging, and Body Composition Study. In multiple regression analyses, clinical vascular burden (sum of vascular conditions) and white matter hyperintensity (WMH) volume predicted depressive symptoms as measured by the Center for Epidemiologic Studies Depression Scale, controlling for demographic variables. Follow-up analyses compared the associations in the Black subsample and in 179 NHW older adults. RESULTS: Higher total WMH volume, but not clinically-defined vascular burden, predicted higher concurrent depressive symptoms and higher average depressive symptoms over 4 years. Similar associations were found between uncinate fasciculus (UF) WMHs and concurrent depressive symptoms and between superior longitudinal fasciculus WMHs and average depressive symptoms. The association between depressive symptoms and UF WMH was stronger in Black compared to NHW individuals. CONCLUSION: This research is consistent with the VaDep hypothesis and extends it to Black older adults, a group that has historically been underrepresented in the literature. Results highlight WMH in the UF as particularly relevant to depressive symptoms in Black older adults and suggest this group may be particularly vulnerable to the negative effects of WMH.

Younger and older adults' memory of past feelings surrounding an election.

People often misremember their past feelings, especially when recalling their prior mood as opposed to their specific emotions in response to events. A previous study also found that the direction of memory errors varies based on feeling type; younger adults overestimated the intensity of prior moods but underestimated the intensity of prior event-specific emotions. This study aimed to replicate these patterns and test whether they vary with age. In doing so, we also tested whether an age-related positivity effect would emerge, such that older adults would be relatively more likely to overestimate past positive feelings and underestimate past negative feelings. Using a sample of American voters, who reported their feelings following the 2020 United States presidential election, we found that both younger and older adults subsequently overestimated the intensity of their past mood in the week following the election but were relatively accurate in recalling the intensity of their prior emotions about the election result. Unexpectedly, among election losers, we also observed an age-related negativity effect in recall for prior mood. When faced with negative real-world events, older adults may not show the same positivity biases that are observed in lab studies.

Age and Gender Differences in the Borrowing of Personal Stories.

BACKGROUND: In prior research, about half of undergraduate students claimed to have "borrowed" a story, by telling someone else's autobiographical memory as if it was their own. Given that borrowing stories often involves intentional fabrication, and given that there are age-related declines in lying, we hypothesized that reports of intentionally borrowing stories should decline with age. METHODS: We recruited participants who ranged in age from 18 to 86 and asked them to complete an online retrospective survey about borrowing stories. RESULTS: Consistent with our hypothesis, older age was associated with lower reports of borrowing stories. Furthermore, among people who did report borrowing a story, older age was associated with less frequent story borrowing and less recent story borrowing. CONCLUSION: These findings highlight the importance of using age-diverse samples when examining social memory phenomena. Findings based upon undergraduate students do not always replicate in other age groups.

Younger and older adults' collaborative recall of shared and unshared emotional pictures.

Although a group of people working together recalls more items than any one individual, they recall fewer unique items than the same number of people working apart whose responses are combined. This is known as collaborative inhibition, and it is a robust effect that occurs for both younger and older adults. However, almost all previous studies documenting collaborative inhibition have used stimuli that were neutral in emotional valence, low in arousal, and studied by all group members. In the current experiments, we tested the impact of picture-stimuli valence, picture-stimuli arousal, and information distribution in modulating the magnitude of collaborative inhibition. We included both younger and older adults because there are age differences in how people remember emotional pictures that could modulate any effects of emotion on collaborative inhibition. Results revealed that when information was shared (i.e., studied by all group members), there were robust collaborative inhibition effects for both neutral and emotional stimuli for both younger and older adults. However, when information was unshared (i.e., studied by only a single group member), these effects were attenuated. Together, these results provide mixed support for the retrieval strategy disruption account of collaborative inhibition. Supporting the retrieval strategy disruption account, unshared study information was less susceptible to collaborative inhibition than shared study information. Contradicting the retrieval strategy disruption account, emotional valence and arousal did not modulate the magnitude of collaborative inhibition despite the fact that participants clustered the emotional, but not neutral, information together in memory.

Thinking about a limited future enhances the positivity of younger and older adults' recall: Support for socioemotional selectivity theory.

Compared with younger adults, older adults have a relative preference to attend to and remember positive over negative information. This is known as the "positivity effect," and researchers have typically evoked socioemotional selectivity theory to explain it. According to socioemotional selectivity theory, as people get older they begin to perceive their time left in life as more limited. These reduced time horizons prompt older adults to prioritize achieving emotional gratification and thus exhibit increased positivity in attention and recall. Although this is the most commonly cited explanation of the positivity effect, there is currently a lack of clear experimental evidence demonstrating a link between time horizons and positivity. The goal of the current research was to address this issue. In two separate experiments, we asked participants to complete a writing activity, which directed them to think of time as being either limited or expansive (Experiments 1 and 2) or did not orient them to think about time in a particular manner (Experiment 2). Participants were then shown a series of emotional pictures, which they subsequently tried to recall. Results from both studies showed that regardless of chronological age, thinking about a limited future enhanced the relative positivity of participants' recall. Furthermore, the results of Experiment 2 showed that this effect was not driven by changes in mood. Thus, the fact that older adults' recall is typically more positive than younger adults' recall may index naturally shifting time horizons and goals with age.

Stereotype Threat Lowers Older Adults' Self-Reported Hearing Abilities.

BACKGROUND: Although stereotype threat is a well-documented phenomenon, previous studies examining it in older adults have almost exclusively focused on objective cognitive outcomes. Considerably less attention has been paid to the impact of stereotype threat on older adults' subjective assessments of their own abilities or to the impact of stereotype threat in noncognitive domains. OBJECTIVE: Older adults are stereotyped as having experienced not only cognitive declines, but physical declines as well. The current study tested the prediction that stereotype threat can negatively influence older adults' subjective hearing abilities. METHODS: To test this, 115 adults (mean age 50.03 years, range 41-67) read either a positive or negative description about how aging affects hearing. All participants then answered a questionnaire in which they assessed their own hearing abilities. RESULTS: The impact of stereotype threat on self-reported hearing was moderated by chronological age. Participants in their 40s and early 50s were unaffected by the stereotype threat manipulation. In contrast, participants in their late 50s and 60s rated their hearing as being subjectively worse when under stereotype threat. CONCLUSION: The current study provides a clear demonstration that stereotype threat negatively impacts older adults' subjective assessments of their own abilities. It is also the first study to demonstrate an effect of stereotype threat within the domain of hearing. These results have important implications for researchers investigating age-related hearing decline. Stereotype threat can lead to overestimation of the prevalence of age-related hearing decline. It can also serve as a confounding variable when examining the psychosocial correlates of hearing loss. Because of this, researchers studying age-related hearing loss should aim to provide a stereotype threat-free testing environment and also include assessments of stereotype threat within their studies.

The illusory truth effect: A review of how repetition increases belief in misinformation.

Repetition increases belief in information, a phenomenon known as the illusory truth effect. In laboratory experiments, the illusory truth effect has often been examined using general trivia statements as stimuli, but repetition also increases belief in misinformation, such as fake news headlines and conspiracy beliefs. Repetition even increases belief in claims that are implausible or that contradict prior knowledge. Repetition also has broader impacts beyond belief, such as increasing sharing intentions of news headlines and decreasing how unethical an act is perceived to be. Although the illusory truth effect is robust, some interventions reduce its magnitude, including instruction to focus on accuracy and awareness of the illusory truth effect. These strategies may be effective for reducing belief in misinformation.

No evidence of attentional bias toward threatening conspecific and allospecific faces in capuchin monkeys (Sapajus [Cebus] apella) using a dot-probe task.

The ability to quickly perceive and interpret threatening facial expressions from others is critical for successfully maintaining group cohesion in social nonhuman primate species. Rapid detection of threatening or negative stimuli in the environment compared to neutral stimuli, referred to as an attentional bias toward threat, is adaptive in that faster threat detection can lead to greater survival outcomes. However, the evolutionary roots of attentional bias formation toward social threat are not well understood. The present study investigated attentional biases toward social threat and the factors associated with them, including underlying hormonal mechanisms, in socially housed capuchin monkeys. Attentional biases were assessed using a dot-probe task that measured capuchins' latency to respond to a target using a joystick after viewing threatening or neutral conspecific or allospecific faces or nonface stimuli. In our first study, we examined how age, dominance status, sex, and cortisol level related to attentional biases. In our second study, we examined how manipulated oxytocin (OT) influenced attentional biases. Capuchin monkeys did not show attentional biases toward threatening faces or objects, but they showed attentional avoidance of scrambled familiar conspecific face stimuli. Cortisol and social rank were associated with attentional bias toward threat in the capuchin monkeys that participated in this study, which suggests that stress and dominance relate to attentional bias toward social threat. Manipulated OT increased attentional avoidance of scrambled familiar and unfamiliar face images, but not unscrambled faces or objects. Overall, we did not find compelling evidence of attentional biases toward social threat in capuchin monkeys. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Stereotype threat can both enhance and impair older adults' memory.

Negative stereotypes about aging can impair older adults' memory via stereotype threat; however, the mechanisms underlying this phenomenon are unclear. In two experiments, we tested competing predictions derived from two theoretical accounts of stereotype threat: executive-control interference and regulatory fit. Older adults completed a working memory test either under stereotype threat about age-related memory declines or not under such threat. Monetary incentives were manipulated such that recall led to gains or forgetting led to losses. The executive-control-interference account predicts that stereotype threat decreases the availability of executive-control resources and hence should impair working memory performance. The regulatory-fit account predicts that threat induces a prevention focus, which should impair performance when gains are emphasized but improve performance when losses are emphasized. Results were consistent only with the regulatory-fit account. Although stereotype threat significantly impaired older adults' working memory performance when remembering led to gains, it significantly improved performance when forgetting led to losses.

The illusory truth effect requires semantic coherence across repetitions.

Repeated exposure to information increases its' perceived truth, and this illusory truth effect is often explained by two theoretical frameworks: the fluency account and the referential theory of truth. Whereas the fluency account suggests that prior activation of a single referent within a statement should increase its perceived truth, the referential theory makes no such predictions. The referential theory instead proposes that when a statement is processed, it activates the corresponding memory referents within that statement and strengthens the connection between these referents in the semantic memory network. Because repeated statements will have more coherent corresponding referents than new statements, they are perceived as relatively truer. Experiments 1 and 2 focused on testing the fluency account, with participants exposed to one or two of a statement's referents before evaluating that statement's truth. Experiments 3 and 4 focused on the referential theory by exposing participants to non-critical facts that linked together two of a critical statements' referents before evaluating the truth of the critical statements. We consistently observed a standard illusory truth effect, such that facts that repeated verbatim were rated as truer than new facts. However, perceived truth was not affected by prior exposure to the critical statement's topic (Experiment 1) or by prior exposure to non-critical facts related to the same topic(s) as the critical statement (Experiment 2). There was also no boost in perceived truth following prior exposure to non-critical facts that linked together two of the primary referents of the critical statement but did so in a semantically distinct manner from how those same referents were linked in the critical statement itself (Experiments 3 and 4). However, Experiment 4 demonstrated that perceived truth significantly increased if there was prior exposure to non-critical facts that linked two of the critical statement primary referents in a way that was semantically coherent with how those same referents were linked within the critical statement. Together, these results are consistent with the referential theory, and suggest that semantic consistency across repetitions plays a crucial role in leading to repetition-based illusory truth effects.

Age differences in affective forecasting accuracy.

Affective forecasts are people's predictions of their future feelings in response to future events. In this study, we examined whether younger and older adults differ in their affective forecasting accuracy. To do so, we recruited younger and older American voters and asked them to predict how they would feel following the 2020 U.S. presidential election. In the general feelings condition, participants predicted how they would feel, in general, following an election victory or loss. In the event-related feelings condition, participants predicted their future feelings specifically about an election victory and about an election loss. Later, these same participants reported their experienced feelings (either in general or about the election outcome). In the general feelings condition, age differences in affective forecasting accuracy varied as a function of whether participants' preferred candidate won or lost the election. Among election victors, there were age-related improvements in affective forecasting accuracy of negative feelings. In contrast, among election losers there were age-related declines in affective forecasting accuracy of both negative and positive feelings. A different pattern emerged for participants in the event-related feelings condition. These participants were highly accurate in their affective forecasts, and there were minimal age differences in forecasting accuracy. Together, these results show that age differences in affective forecasting accuracy depend upon both the type of future event, and the type of future feeling being predicted. When considered together, these results also suggest that the focusing illusion plays a key role in modulating age differences in affective forecasting accuracy. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Impact of cardiovascular risk factors on the relationships of physical activity with mood and cognitive function in a diverse sample.

Physical activity has well-known benefits for older adults' mood and cognitive functioning; however, it is not clear whether risk factors for cardiovascular disease (CVD) affect the relationships of physical activity with these health outcomes among diverse older adults. This study investigated the impact of CVD risk burden on the relationships among self-reported physical activity, mood, and cognitive functioning in a diverse sample of 62 adults age 45 and older. We found that higher physical activity was associated with better attention and verbal working memory at lower CVD risk, but with worse attention and verbal working memory at higher CVD risk levels. Thus, higher CVD risk might limit the effectiveness of exercise interventions for mood and cognitive functioning. Future studies are needed to further clarify individual differences that impact the relationships among physical activity, CVD risk, and cognitive outcomes.

Rostral anterior cingulate connectivity in older adults with subthreshold depressive symptoms: A preliminary study.

Subthreshold depressive symptoms are highly prevalent among older adults and are associated with numerous health risks including cognitive decline and decreased physical health. One brain region central to neuroanatomical models of depressive disorders is the anterior cingulate cortex (ACC). The rostral portion of the ACC-comprised of the pregenual ACC and subgenual ACC-is implicated in emotion control and reward processing. The goal of the current study was to examine how functional connectivity in subregions of the rostral ACC relate to depressive symptoms, measured by the Beck Depression Inventory-Second Edition, in an ethnically diverse sample of 28 community-dwelling older adults. Based on meta-analyses of previous studies in primarily young adults with clinical depression, we hypothesized that greater depressive symptoms would be associated with primarily increased resting-state functional connectivity from both the subgenual ACC and pregenual ACC to default mode network regions and the dorsolateral PFC. We instead found that higher depressive symptoms were associated with lower functional connectivity of the ACC to the dorsolateral PFC and regions within the default mode network, including from the subgenual ACC to the dorsolateral PFC and anterior cingulate and from the pregenual ACC to the middle cingulate gyrus. This preliminary study highlights brain alterations at subthreshold levels of depressive symptoms in older adults, which could serve as targets for interventions.

Forgetting in context: the effects of age, emotion, and social factors on retrieval-induced forgetting.

Retrieval-induced forgetting (RIF) refers to the finding that selectively retrieving some information impairs subsequent memory for related but nonretrieved information. This occurs both for the individual doing the remembering (i.e., within-individual retrieval-induced forgetting: WI-RIF), as well as for individuals merely listening to those recollections (i.e., socially shared retrieval-induced forgetting: SS-RIF). In the present study, we examined how the contextual factors of age and emotion independently and interactively affect both WI-RIF and SS-RIF. The results indicated that both WI-RIF and SS-RIF occurred at equivalent levels, both for younger and older adults and for neutral and emotional information. However, we identified a boundary condition to this effect: People only exhibited SS-RIF when the speaker that they were listening to was of the same sex as themselves. Given that participants reported feeling closer to same-sex speakers, this suggests that people co-retrieve more, and therefore exhibit increased SS-RIF, with close others. In everyday life, these RIF effects should influence what information is remembered versus forgotten in individual and collective memories.

Learning and Remembering with Others: The Key Role of Retrieval in Shaping Group Recall and Collective Memory.

People frequently collaborate to learn and remember information, and this may help groups create a shared representation of the world (i.e., collective memories). However, contrary to intuitions, collaboration also lowers group recall levels. Such impairment occurs regardless of whether people collaborate when first experiencing, or encoding, an event (the collaborative encoding deficit), or when retrieving, or remembering, the event (the collaborative inhibition effect). In understanding how collaboration impairs group recall and enhances collective or shared memories it remains unknown as to where collaboration exerts the greatest influence - at encoding or at retrieval - to shape these distinct phenomena. The current study simultaneously compared collaboration at these two stages and revealed the power of collaborative retrieval. Collaboration impaired the group recall product at both time points, but especially so at retrieval. Furthermore, only collaborative retrieval played a significant role in the formation of collective memories.

The effects of repetition spacing on the illusory truth effect.

The illusory truth effect refers to the fact that repetition increases perceptions of truth. In these experiments, we examined whether the magnitude of the illusory truth effect varies based upon repetition spacing. In Experiment 1, participants read facts that repeated twice, with a lag of 0, 1, 2, 4, 8, 16, or 32 intervening facts. Participants later rated the truthfulness of these facts in addition to new facts. Here, we observed a spacing effect: Truth ratings were higher when repetitions were spaced (i.e., lags of 1 through 32) rather than massed (i.e., lag of 0). We also observed a lag effect that followed a quadratic pattern: Truth ratings increased up to a lag of 16, after which they decreased. In Experiment 2 we tested whether the spacing effect in truth ratings depends upon the number of repetitions. In Experiment 2a we used a small number of repetitions (2, 3, or 4) and short lag lengths (0, 1, or 2). In Experiment 2b, we increased the number of repetitions (2 or 10) and the lag lengths (0 or 10). In Experiment 2a there was an illusory truth effect, but its magnitude did not depend upon lag length or repetition number. However, in Experiment 2b the magnitude of the illusory truth effect increased as lag length and repetition number increased, but there was no interaction between these two factors. Together, these findings show that repetition is most likely to increase perceived truth when repetitions are spaced with a moderate number of intervening items.

Age-differences in interpreting the valence of ambiguous facial expressions: evidence for multiple contributing processes.

Surprised facial expressions, which are ambiguous in valence, are interpreted more positively by older adults than by younger adults. To evaluate the processes contributing to this age difference, we varied the spatial frequency of the surprised-face stimuli. When faces were presented in a low-spatial-frequency band, it biased participants to rate them negatively. Although this occurred for both younger and older adults, the older adults' ratings of the low-spatial-frequency faces were more positive than that of the younger adults. This suggests that there is an age-related reduction in the default negativity of interpretations. We also found that older adults, as a whole, rated the high-spatial-frequency faces more positively than did younger adults. However, this effect was eliminated for the subset of older adults with poor high-spatial-frequency perception abilities for whom these faces were difficult to perceive. Thus, older adults' more positive interpretations of surprised faces may also reflect cognitively-effortful regulatory processes.

Thinking about the past, present, and future: Time perspective and self-esteem in adolescents, young adults, middle-aged adults, and older adults.

We examined time perspective and self-esteem in adolescents, young adults, middle-aged adults, and older adults. Time perspective was measured with scales that assess relative orientations and relationships among the past, present, and future. Age effects were examined with standard analytic strategies to determine categorical differences between age groups and with new statistical techniques designed to show continuous age patterns. Findings indicated that (1) thinking about the future was greatest for adolescents and young adults and lowest for middle-aged and older adults, and thinking about the present increased across ages; (2) fewer adolescents and middle-aged participants perceived that the time periods were interrelated compared to younger and older adults; and (3) across ages, a greater emphasis towards the past compared to other time periods was associated with lower self-esteem, whereas emphasizing the present and the future jointly was associated with higher self-esteem.

Preliminary User Evaluation of a Physical Activity Smartphone App for Older Adults.

Objectives: Mobile health (mHealth) delivered through smartphone apps is a viable means of improving health behaviors. Technologies can be strengthened and made more age-inclusive by involving older adults as co-designers, resulting in more accessible and effective products. This study's purpose is to describe preliminary acceptability and feasibility of a physical activity (PA) app tailored to underactive older people. Methods: Moving Up is a multi-feature app designed to increase PA and reduce sedentary behaviors in underactive older adults. The suite houses a core activity tracker and three add-on features that target correlates of inactivity: sedentary behavior, stereotypes about aging, and PA knowledge and routines. Three groups of 4-5 older adult smartphone owners were provided with and oriented to the Moving Up app activity tracker and one add-on feature. Participants beta-tested the app for two weeks, after which each cohort reconvened to discuss experiences, make recommendations for app improvements, and complete a usability questionnaire on their assigned feature. Results: Thirteen participants (median age, 71 years; iOS users, n=8; females, n=12) completed the beta-testing period and returned for follow-up. Reported usability was moderate across the features. Sentiments about app content and general impressions were mainly positive, although users made several recommendations for app improvements such as more individualized messaging and timely notifications. Conclusions: A PA app for older adults demonstrated generally good usability and acceptability. Integrating the impressions and recommendations from older adults into the design of mHealth tools will enhance overall usability and likelihood to positively influence PA behaviors long-term.

Exploring the relationship between retrieval disruption from collaboration and recall.

When people recall together in a collaborative group they recall less than their potential. This phenomenon of collaborative inhibition is explained in terms of retrieval disruption. However, collaborative recall also re-exposes individuals to items recalled by others that they themselves might otherwise have forgotten. This re-exposure produces post-collaborative benefits in individual recall. The current study examined whether reduced retrieval disruption during group recall is related not only to less collaborative inhibition, but also to greater post-collaborative recall benefits. To test this we devised a paradigm to calculate the extent to which each individual experienced retrieval disruption during group recall. We also included two types of collaborative groups, one of which was expected to experience greater retrieval disruption than the other. Results suggest that the relationship between retrieval disruption and recall performance depends on the level at which retrieval disruption is measured. When retrieval disruption was assessed at the individual level, then minimising retrieval disruption was associated with higher recall (i.e., less collaborative inhibition and greater post-collaborative individual recall). However, when retrieval disruption was assessed at the group level there was no relationship with recall. Furthermore, the findings from this design suggest a role of cross-cueing in modulating group recall levels.