Music-Evoked Nostalgia Activates Default Mode and Reward Networks Across the Lifespan

Nostalgia is a mixed emotion that is often evoked by music. Nostalgic music may induce temporary improvements in autobiographical memory in individuals with cognitive decline. However, the neural mechanism underlying music-evoked nostalgia and its associated memory improvements is unclear. With the ultimate goal of understanding how nostalgia-evoking music may help retrieve autobiographical memories in individuals with cognitive impairment, we first sought to understand the neural underpinnings of these processes in healthy younger and older adults. Methodological constraints, including the lack of personally tailored and experimentally controlled stimuli, have impeded our understanding of this mechanism. Here, we utilized an innovative machine-learning-based method to construct three categories of songs, all matched for musical features: (1) personalized nostalgic, (2) familiar non-nostalgic, and (3) unfamiliar non-nostalgic. In 57 participants (29 aged 18-35; 28 aged 60 and older), we investigated the functional neural correlates of music-evoked nostalgia using fMRI. Four main findings emerged: (1) Listening to nostalgic music, more than familiar non-nostalgic or unfamiliar music, was associated with bilateral activity in the default mode network, salience network, reward network, medial temporal lobe, and supplementary motor regions, (2) Psychophysiological interaction (PPI) models indicated that listening to nostalgic music involved increased functional connectivity of self-referential (posteromedial cortex) and affect-related regions (insula), (3) Older adults had stronger BOLD signals than younger adults in nostalgia-related regions during nostalgic listening, (4) While the BOLD response to nostalgic music in younger adults was associated with trait-level factors of nostalgia proneness and cognitive ability, the response in older adults was related to affective responses to the music. Overall, our findings serve as a foundation for understanding the neural basis of music-evoked nostalgia and its potential use in future clinical interventions.

Nostalgia encourages exploration and fosters uncertainty in response to AI technology

The burgeoning progress of cutting-edge technology paradoxically evokes nostalgia. How does this emotion influence responses to innovative technology, such as Artificial Intelligence (AI)? We hypothesized that two pathways operate concurrently. First, by enhancing connection with significant others, nostalgia constitutes a psychological resource that supports exploration of technological innovation, thereby promoting positive responses to AI. Second, by reinforcing scepticism toward change, nostalgia heightens uncertainty about innovative technology, thereby fostering negative responses to AI. Three preregistered experiments, testing participants (ΣN = 1397) across cultures (China, UK, USA), supported the two pathways. Nostalgia influenced responses to ChatGPT via two opposing serial pathways (Experiment 1). Further, social connectedness bolstered favourable responses to AI avatars via increased technology exploration (Experiment 2), whereas scepticism about change reduced favourable responses to companion robots via increased technology uncertainty (Experiment 3). This dualistic role of nostalgia can be harnessed to sustain new technology or instill caution for its risks.

Benefits of nostalgic landmarks for people living with Alzheimer's disease

BACKGROUND

Emerging literature shows that nostalgia induced by autobiographical reflection and music confers psychological benefits to people living with dementia.

OBJECTIVE

Our objective was to test the potential benefits of nostalgic landmarks for people living with Alzheimer's disease.

METHODS

We displayed the landmarks as wall-mounted pictures within a virtual environment. In Experiment 1, we developed the nostalgia manipulation by using pictures associated with the decade during which participants lived most of their childhood. To examine the effectiveness, tolerability, and safety of this pictorial nostalgia induction, we conducted the experiment with 172 healthy adults. In Experiment 2, we recruited 20 participants living with Alzheimer's disease who experienced mild to moderate cognitive impairments. We further personalized the pictorial nostalgia induction by interviewing them about fond memories from their past and generating images corresponding to these events. We hypothesized that navigating a virtual environment with wall-mounted nostalgic (compared to control) pictures would confer psychological benefits.

RESULTS

The nostalgic (versus control) pictures evoked higher levels of momentary nostalgia; the manipulation was successful (Experiments 1 and 2). Compared to control pictures, nostalgic pictures significantly increased self-reported positive (but not negative) affect, self-esteem, self-continuity, social connectedness, and meaning in life (Experiments 1 and 2). Participants in the nostalgia condition (compared to controls) evinced better picture recognition, but not improved spatial memory (Experiment 2).

CONCLUSIONS

Our findings demonstrate that nostalgic landmarks confer psychological benefits and enhance picture recognition among people living with Alzheimer's disease. This work has real-world applications for dementia-friendly design and therapy-related practices.

Golden years happiness: analyzing the nostalgic aspect of leisure

Retirees face numerous challenges, particularly in countries with lower socio-economic conditions. Perceived social isolation and happiness levels are seen as significant factors that significantly affect the quality of life in old age. Perceived social happiness levels can disrupt the quality of life in old age and contribute to mental disorders. Recent studies on leisure have suggested a direct impact of individuals' leisure attitudes on happiness. In this context, leisure nostalgia stands out in the relationship between leisure attitude and happiness levels among retirees. In this study, structural equation modeling (SEM) was employed to examine the relationship between leisure attitude, leisure nostalgia, and happiness levels in a sample of 210 retirees. The findings revealed that leisure nostalgia fully mediated the relationship between leisure attitude and happiness. It was concluded that previous experiences significantly shape retirement, and leisure attitude offers valuable opportunities for enhancing happiness through effective leisure utilization.

The joy of eating: how eating experiences enhance the well-being of older adults

Introduction

The active aging strategy has as its policy implications the health, security, and participation of older people. The joy of eating is the main goal of establishing community-based service facilities for older people, as well as a source of health and well-being and a sense of meaning in the lives of older people.

Methods

Based on the theory of human-environment relations and cognitive-emotional personality systems (CAPS), the study constructed a structural equation model of the eating experience, nostalgia, place attachment, and the well-being of the older adults in the community canteens as an interactive situation, and explored the relationship between the eating experience and the well-being of older people in the community canteens through the partial least squares structural equation modeling (PLS-SEM).

Results

The results of the study show that the older adults' eating experience has a significant positive effect on their well-being, and "eating" can make older adults feel happy. Older adults' eating experience has a significant effect on nostalgia, place attachment, and well-being, but nostalgia does not have a significant effect on older adults' well-being, and place attachment in the community canteens can enhance older adults' well-being. Meanwhile, the study further confirmed that place attachment plays a mediating role in the effect of eating experience on older adults' well-being.

Discussion

The findings of the study promote the development of the fields of healthy eating, quality of life assessment, and dietary memory management for older people to a certain extent and provide an important reference for promoting the balanced layout and effective spatial design of community service facilities for older people.

Collective UK nostalgia predicts a desire to leave the European Union

Collective nostalgia is an emotion experienced when one sentimentally recalls events or things related to a particular social identity. We investigated the relationship between collective nostalgia about the United Kingdom (UK) and UK citizens' desire to leave the European Union (EU). We collected data of UK citizens twice prior to the UK's official withdrawal from the European Union (N = 347 and N = 240) and once afterwards (N = 236). Cross-sectional and longitudinal analysis, utilizing cross-lagged panel models, supported the hypothesis that collective UK nostalgia increased the desire to leave the European Union. We additionally hypothesized that the relationship between these variables would be mediated positively by ties to UK citizens and negatively by ties to EU citizens. Exploratory and longitudinal analysis, however, indicated that strength of ties to UK and EU citizens predicts levels of collective UK nostalgia which, in turn, predicts desire to leave the European Union. Specifically, ties to UK citizens were associated with increased collective nostalgia and a desire to leave the EU and ties to EU citizens were associated with reduced collective nostalgia and a desire to re-join the European Union. We discuss the implications of the findings as well as making suggestions for future studies.

Nostalgia increases punitiveness by intensifying moral concern

We addressed the relation between nostalgia and moral judgment or behavior. We hypothesized that nostalgia, a social emotion, increases moral concern (H1), nostalgia intensifies punitiveness against moral transgressors (H2), and that the nostalgia-punitiveness link is mediated by moral concern (H3). We conducted three cross-sectional (Studies 1, 2, 4) and one experimental (Study 3) investigations (N = 1145). The investigations, involving distinct operationalizations of the relevant constructs (nostalgia, moral concern, punitiveness) and diverse samples (U.S., Canadian, and European Prolific workers, French business school students, Dutch community members), yielded results consistent with the hypotheses. Nostalgia keeps one's moral compass in check. The findings enrich the emotions and morality literatures.

Trajectory of Nostalgia in Emerging Adulthood

We examined the change and stability of nostalgia in emerging adulthood. We followed 327 students through their 4 university years with six assessments. Nostalgia demonstrated moderate rank stability (r = .25-.79). A Trait-State-Occasion model analysis indicated that the stable trait component, slowing-change trait component, and state component explained 37% to 43%, 10% to 27%, and 29% to 49% of variation in nostalgia on specific occasions, respectively. Longitudinal multilevel analysis revealed that the mean nostalgia level declined across university years. Greater intensity of negative life events at the start of university was associated with higher initial nostalgia and slower decline of it, while the emotion intensified when experiencing more negative life events. Nostalgia in emerging adulthood displays moderate stability, with negative life events contributing to the shape of its trajectory.

Nostalgia, Ritual Engagement, and Meaning in Life

Rituals are pervasive and beneficial. Little is known, however, about causes or antecedents of ritual engagement. We hypothesized that nostalgia-a sentimental longing for one's past-promotes ritual engagement, which in turn augments meaning in life. We tested this hypothesis in five methodologically diverse studies. In Study 1 (N = 311), nostalgia was positively associated with ritual engagement. In Study 2 (N = 188), nostalgia promoted ritual engagement, and in Study 3 (N = 296), it did so over engagement in a neutral task. In Study 4 (N = 252), nostalgia predicted later ritual engagement but not vice versa, convergent with Studies 2 and 3. Furthermore, nostalgia prospectively predicted meaning in life through specific ritualistic behaviors during a traditional festival. Finally, in Study 5 (N = 166), experimentally manipulated ritual engagement augmented meaning in life. As hypothesized, nostalgia advances ritual engagement, contributing to a meaningful life.

The relationship between life satisfaction and nostalgia: Perceived social support and meaning in life chain mediation

Much of the previous research has used experimental studies to explore the positive predictive effect of nostalgia on life satisfaction. However, the possible mediating effects involved remain unclear. To analyze the chain mediating mechanism between perceived social support and meaning in life in the relationship between nostalgia and life satisfaction and to improve the positive application of nostalgia to life satisfaction to ensure the physical and mental health of individuals, this study adopted the method of questionnaire survey, applied the Southampton Nostalgia scale, Perceived Social Support scale, Meaning in Life Scale and Life Satisfaction Scale. This study conducted a horizontal survey on 452 subjects recruited online from Gansu Province, Guangdong Province, Qinghai Province, and other places in China. The results showed that (1) there was a significant positive correlation between nostalgia and perceived social support, presence of meaning in life, searching for meaning in life, and life satisfaction. (2) Perceived social support and meaning in life play a chain mediating role in the relationship between nostalgia and life satisfaction. (3) Perceived social support and different dimensions of meaning in life are different in the relationship between nostalgia and life satisfaction. The findings contribute to understanding the chain-mediated mechanism between life satisfaction and nostalgia and provide recommendations for psychological service providers to apply nostalgia to enhance individual life satisfaction.

The Long Shadow of Addiction-Related Nostalgia: Nostalgia Predicts Ambivalence and Undermines the Benefits of Optimism in Recovery

Background: Previous research has shown that nostalgia for the pre-addicted self can motivate people living with addiction to engage in behavior change. Objective: Herein, we explored nostalgia for the addictive behavior-labeled addiction-related nostalgia (ARN)-among people in recovery from engaging in addictive behavior. We tested the novel idea that ARN is positively associated with ambivalence about recovery. We also hypothesized that ARN may counteract the positive influence of optimism on individuals' commitment to recovery. Results: In two studies involving individuals in recovery from a gambling (Study 1; N=301) or alcohol use disorder (Study 2; N=604), ARN was linked to increased ambivalence about recovery, while optimism was associated with decreased ambivalence. As expected, the interaction between optimism and ARN revealed that nostalgia either eliminated (Study 1) or reduced (Study 2) the negative relation between optimism and ambivalence. Conclusions: These findings underscore the challenges posed by ARN in the recovery process and emphasize the importance of interventions that address and mitigate its impact while considering the moderating role of optimism.

The utility of nostalgia for unhealthy populations: A systematic review and narrative analysis

Nostalgic reverie (i.e. sentimental longing) has received increased attention as a predictor of health and well-being, but only a handful of reviews have summarized this literature. The available reviews (Dementia: The International Journal of Social Research and Practice, 19, 2020, 330; Intimations of nostalgia: Multidisciplinary explorations of an enduring emotion, Bristol University Press, 2022) left a critical gap in explicating the function of nostalgia among people engaged in unhealthy behaviour. In the current systematic review and narrative analysis, we sought to answer whether and under what conditions emotion serves to help or hinder people engaged in unhealthy behaviours in terms of taking action to change. We identified 14 studies and categorized them into two themes. In Theme I, nostalgising about a time in one's life when one was healthier motivated both readiness to change and action to change unhealthy behaviour. In Theme II, nostalgizing about the perceived benefits of engaging in unhealthy behaviour (e.g. social connectedness related to drinking) was associated with the continuance or acceleration of the unhealthy behaviour. This review highlights not only the presence of a link between nostalgia and unhealthy behaviour but also that the content of one's nostalgising matters for understanding whether the unhealthy behaviour is undermined or bolstered.

Nostalgia enhances route learning in a virtual environment

Salient landmarks enhance route learning. We hypothesised that semantically salient nostalgic landmarks would improve route learning compared to non-nostalgic landmarks. In two experiments, participants learned a route through a computer-generated maze using directional arrows and wall-mounted pictures. On the test trial, the arrows were removed, and participants completed the maze using only the pictures. In the nostalgia condition, pictures were of popular music artists and TV characters from 5 to 10 years ago. In the control condition, they were recent pictures of these same artists and characters. In Experiment 1, in the test trial, participants in the nostalgia condition completed the maze faster than controls. Experiment 2 conceptually replicated these findings and extended them by exploring boundary conditions. Participants had to learn two mazes sequentially. In Maze 1, we placed nostalgic/control landmarks only at non-decision points (whereas we placed them at decision points in Experiment 1). In Maze 2, we placed nostalgic/control landmarks at decision points during acquisition but removed them in the test trial (whereas they were present in the test trial in Experiment 1). In both mazes, participants in the nostalgia (compared to control) condition completed the test trial faster.

From rosy past to happy and flourishing present: Nostalgia as a resource for hedonic and eudaimonic wellbeing

We review recent evidence of nostalgia's ability to enhance and buffer different types of wellbeing. Nostalgia has been associated with increased hedonic wellbeing (e.g., life satisfaction, happiness) in various contexts. Nostalgia is triggered by and can mitigate against threats to hedonic wellbeing. Nostalgia also increases eudaimonic wellbeing (e.g., perceptions of vitality, environmental mastery, positive relationships) and mitigates threats to eudaimonic wellbeing through varying mechanisms. Two applications of these wellbeing benefits are being explored in recent research: nostalgia can help understand how people buffer negative psychological effects of the COVID-19 pandemic; and is being harnessed for wellbeing interventions. More experimental and longitudinal research is needed to establish and maximize the potential of nostalgia for bolstering resilience.

Anticipated nostalgia

Anticipated nostalgia is the foreseeing of looking back on life events and expecting to feel nostalgic about it in the future. I review recent findings on the content, affective profile, and psychological benefits of anticipated nostalgia. I also review neurological and cognitive evidence that may explain the mechanism underlying anticipated nostalgia. Finally, I discuss anticipated nostalgia in an applied setting, consumer behavior.

Nostalgia in the brain

Nostalgia, a complex emotion that arises from one's yearnful memories, involves multiple psychological processes. Cognitive neuroscience research has shed light on the neural mechanism of nostalgia as well as its adaptive functions. Nostalgia involves brain regions implicated in self-reflection, autobiographical memory, emotion regulation and reward processing. Also, nostalgia buffers various psychological and physical threats by modulating activities in brain regions implicated in emotion regulatory processing (i.e., both top-down emotion regulation and bottom-up sensory and attention processing) and reward processing. These findings deepen understanding of nostalgia and have implications for its application in clinical situations.

Locating nostalgia among the emotions: A bridge from loss to love

An effective way of identifying the psychological role of an emotion is by probing its position relative to other emotions, such as in terms of appraisals, occurrence, lay conceptualization, and consequences. A set of recent studies offer such comparisons for nostalgia against a backdrop of many other emotions. These studies depict nostalgia as an approach-oriented emotion that resembles positive emotions more closely than negative ones, and place nostalgia especially close to positive social emotions. A complementary new analysis of the correlations between nostalgia and 31 other emotions furthermore locates nostalgia between experiences related to loss and love. Altogether, recent work on nostalgia among the emotions portrays it as a psychological bridge from loss toward love.

Diamonds and rust: The affective ambivalence of Nostalgia

Affective ambivalence is the simultaneous experience of oppositely valenced emotions, such as happiness and sadness. Historic writings on the valence of nostalgia have proposed that nostalgia can best be conceptualized as an ambivalent emotion. A growing body of research provides empirical evidence for this proposal. Here, I review and summarize this evidence that nostalgia is an ambivalent emotion, albeit more positive than negative. I end by discussing implications and future research directions.

Nostalgia: A potential pathway to greater well-being

Nostalgia is a bittersweet-yet predominantly positive-emotion felt when one reflects on personally meaningful memories, especially those that are shared with close others. Research demonstrates that nostalgizing can promote well-being, but nostalgic reflection is not often discussed among other cognitive and behavioral strategies used to enhance long-term well-being (i.e., Positive Psychology Interventions [PPIs]). Accumulating evidence shows that PPIs increase well-being, and we think that nostalgizing should be considered among these types of practices. We discuss the mechanisms by which nostalgizing may promote well-being over time, as well as the potential boundary conditions of this effect. Lastly, we present evidence that nostalgia's bittersweet character does not undermine its ability to promote well-being over time.

Nostalgia supports a meaningful life

We review research on the role of nostalgia in supporting the ability to find, maintain, and restore meaning in life. We consider evidence that nostalgia promotes aintaining and restoring meaning by protecting against meaning threats, repairing meaning in the face of challenges, and generally compensating for lack of meaning. We also review evidence that nostalgia'' potency to support meaning has positive implications for advancing psychological well-being and adaptive human functioning. Finally, we propose future research important for establishing the applicability of nostalgia as a strategy or intervention to facilitate meaning-making and support psychological health.

Nostalgia in organizations

Scholars have proposed that nostalgia plays various important roles in organizations. At present, there is no comprehensive overview of the role of nostalgia in this context. To help develop such an overview, we review research on personal nostalgia, insofar as it includes outcomes that are organizationally relevant, and research on organizational nostalgia. We propose a model that summarizes the processes through which nostalgia operates in organizations. In this model, we propose that threatening circumstances such as injustice or organizational change evoke organizational (and possibly personal) nostalgia, this evoked nostalgia subsequently counteracts the negative effects of threat on outcomes such as organizational identification and experienced work meaningfulness. We end by discussing implications and future research directions.

Nostalgia: An impactful social emotion

Nostalgia (a sentimental longing for one's past) is a highly social emotion. We provide an evidence-based argument that nostalgia's sociality is one of its most defining and impactful characteristics. First, we review evidence that has established the highly social content of nostalgic reflection. Second, we summarize research that has demonstrated nostalgia's capacity to provide a sense of connectedness with others, and that this social connectedness, in turn, conveys intrapersonal psychological benefits (i.e., meaning in life, self-continuity, optimism, inspiration). Third, we outline research that has documented the interpersonal consequences of nostalgia (e.g., greater physical closeness, strengthened relational goals, increased help seeking, intensified empathy, elevated prosocial behavior). Finally, we call for applied research to investigate how the social character of nostalgia can be harnessed to improve people's social lives.

Reliving the Good Old Days: Nostalgia Increases Psychological Wellbeing Through Collective Effervescence

Nostalgia, a sentimental longing for one’s past, is associated with, or confers, psychological wellbeing (PWB). We identified a mechanism for this link: collective effervescence, a potent sense of connection to those present in an assembly and a sensation of transcendence (i.e., feeling that an experience is special or sacred). In six studies, involving measurement-of-mediation and experimental-causal-chain designs, nostalgia was associated with, and led to, higher PWB via collective effervescence. In Study 1, nostalgia was related to PWB through collective effervescence at the dispositional level. In Study 2, induced collective effervescence increased PWB. In Studies 3a–3c, induced nostalgia led to greater PWB due to collective effervescence. In Study 4, induced nostalgia increased PWB due to collective effervescence even when controlling for authenticity, an alternate mediator.

Can Good Memories of the Past Instill Happiness? Nostalgia Improves Subjective Well-Being by Increasing Gratitude

The positive effect of nostalgia provides an effective way to improve subjective well-being. However, there is little research on the relationship between nostalgia and subjective well-being, especially the mechanism of this link. This study tested the positive effects of nostalgia on emotional well-being (positive affect and negative affect) and cognitive well-being (satisfaction with life) via gratitude. Two experiments were conducted in samples of young adults who were randomized to experimental or control conditions. The analyses involved group comparisons as well as regression-based analyses of mediation. In Experiment 1 (N = 196), we induced nostalgia using a guided autobiographical recall procedure. The nostalgia group had higher positive affect and gratitude, and gratitude partially mediated the association between nostalgia and positive affect. In Experiment 2 (N = 102), we induced nostalgia by showing a nostalgic video from the period when the participants were children. The nostalgia group had higher positive affect and lower negative affect, and gratitude partially mediated these associations. The findings suggest that nostalgia could improve emotional well-being by increasing gratitude, but may not alter cognitive well-being.

The dark side of nostalgia: Yearning for the past fosters bribe-taking

Past work has demonstrated the psychological benefits of nostalgia; however, little is known about its 'dark side'. Considering both the sociality of nostalgia and the relational nature of bribery, we proposed that nostalgia would bolster social connectedness, which, in turn, would promote bribe-taking. We conducted four experiments (N = 887 online and laboratory participants) to test this assumption. Experimentally induced nostalgia boosted the willingness to take a bribe across different scenarios (Experiments 1 and 2) and facilitated bribe-taking behaviour (Experiment 3); the increased social connectedness accounted for these effects (Experiments 2 and 3). Furthermore, the positive effect of social connectedness on bribe-taking was salient, especially when bribe-taking was framed as a way of establishing social relationships (Experiment 4). The findings not only broaden our understanding of nostalgia and bribe-taking but also provide practical implications for anti-bribery initiatives.

Food-evoked nostalgia

In three studies, we examined food as an elicitor of nostalgia. Study 1 participants visualised eating either a nostalgic or regularly consumed food. Study 2 participants visualised consuming 12 foods. Study 3 participants consumed 12 flavour samples. Following their food experiences, all participants responded to questions regarding the profile of food-evoked nostalgia (i.e. autobiographical relevance, arousal, familiarity, positive and negative emotions) and several psychological functions (i.e. positive affect, self-esteem, social connectedness, meaning in life). Study 2 and 3 participants also reported their state nostalgia. Results revealed that food is a powerful elicitor of nostalgia. Food-evoked nostalgia has a similar contextual profile to previously examined elicitors, but is a predominantly positive emotional experience. Food-evoked nostalgia served multiple psychological functions and predicted greater state nostalgia.

Patterns of brain activity associated with nostalgia: a social-cognitive neuroscience perspective

Nostalgia arises from tender and yearnful reflection on meaningful life events or important persons from one's past. In the last two decades, the literature has documented a variety of ways in which nostalgia benefits psychological well-being. Only a handful of studies, however, have addressed the neural basis of the emotion. In this prospective review, we postulate a neural model of nostalgia. Self-reflection, autobiographical memory, regulatory capacity and reward are core components of the emotion. Thus, nostalgia involves brain activities implicated in self-reflection processing (medial prefrontal cortex, posterior cingulate cortex and precuneus), autobiographical memory processing (hippocampus, medial prefrontal cortex, posterior cingulate cortex and precuneus), emotion regulation processing (anterior cingulate cortex and medial prefrontal cortex) and reward processing (striatum, substantia nigra, ventral tegmental area and ventromedial prefrontal cortex). Nostalgia's potential to modulate activity in these core neural substrates has both theoretical and applied implications.

Nostalgia and Spirituality

Abstract. We investigated the relation between nostalgia and spirituality. We hypothesized that nostalgia is linked to greater spirituality through self-continuity and, in turn, meaning in life. In Study 1, we measured nostalgia and spirituality. Nostalgia predicted greater spirituality. In Study 2, we tested this relation in a nationally representative sample. Nostalgia again predicted greater spirituality, and this relation remained significant after controlling for key demographic variables and core personality traits. In Study 3, we manipulated nostalgia and measured self-continuity, meaning in life, and spirituality. Nostalgia predicted spirituality serially via self-continuity and meaning in life.

Nostalgia across cultures

Nostalgia, a sentimental longing for one's past, has been garnering keen empirical attention in the psychological literature over the last two decades. After providing a historical overview, we place the emotion in cross-cultural context. Laypeople in many cultures conceptualize nostalgia similarly: as a past-oriented, social, self-relevant, and bittersweet emotion, but more sweet (positively toned) than bitter (negatively toned). That is, the nostalgizer reflects on a fond and personally important event—often their childhood or valued relationships—relives the event through rose-colored glasses, yearns for that time or relationship, and may even wish to return briefly to the past. Also, triggers of nostalgia (e.g., adverts, food, cold temperatures, loneliness) are similar across cultures. Moreover, across cultures nostalgia serves three key functions: it elevates social connectedness (a sense of belongingness or acceptance), meaning in life (a sense that one's life is significant, purposeful, and coherent), and self-continuity (a sense of connection between one's past and present self). Further, nostalgia acts as a buffer against discomforting psychological states (e.g., loneliness) similarly in varied cultural contexts. For example, (1) loneliness is positively related to, or intensifies, nostalgia; (2) loneliness is related to, or intensifies, adverse outcomes such as unhappiness or perceived lack of social support; and (3) nostalgia suppresses the relation between loneliness and adverse outcomes. Additionally, nostalgia facilitates one's acculturation to a host culture. Specifically, (1) nostalgia (vs. control) elicits a positive acculturation orientation toward a host culture; (2) nostalgia (vs. control) amplifies bicultural identity integration; and (3) positive acculturation orientation mediates the effect of host-culture nostalgia on bicultural identity integration. We conclude by identifying lacunae in the literature and calling for follow-up research.

Feeling Safe and Nostalgia in Healthy Aging

The population of older adults worldwide is growing, with an urgent need for approaches that develop and maintain intrinsic capacity consistent with healthy aging. Theory and empirical research converge on feeling safe as central to healthy aging. However, there has been limited attention to resources that cultivate feeling safe to support healthy aging. Nostalgia, "a sentimental longing for one's past," is established as a source of comfort in response to social threat, existential threat, and self-threat. Drawing from extant theory and research, we build on these findings to position nostalgia as a regulatory resource that cultivates feeling safe and contributes to intrinsic capacity to support healthy aging. Using a narrative review method, we: (a) characterize feeling safe as a distinct affective dimension, (b) summarize the character of nostalgia in alignment with feeling safe, (c) propose a theoretical account of the mechanisms through which nostalgia cultivates feeling safe, (d) highlight the contribution of nostalgia to feeling safe and emotional, physiological, and behavioral regulatory capabilities in healthy aging, and (e) offer conclusions and direction for research.

Nostalgic conversations: The co-production of an intervention package for people living with dementia and their spouse

Objectives

Nostalgic memories are more social than other forms of autobiographical recall, often refer to atypical events, express more positive affect and reflect life as meaningful. Recalling a nostalgic (compared to ordinary) memory increases self-esteem, self-growth, meaning in life and social connectedness for people living with dementia. We set two objectives: to work with people living with dementia to develop an intervention based on nostalgia, and to assess whether couples could engage in nostalgic conversations.

Method

Our research fell into three phases. Initially, we consulted with people living with dementia and with carers to identify the parameters for a nostalgic intervention. From this, we drafted a workbook that contained triggers for nostalgic conversations, which we then took back to the public contributors for refinement. Finally, we trialled the workbook over 5 weeks with six couples, each of which included a person living with dementia. We assessed pre- and post-intervention self-esteem, self-growth, meaning in life and social connectedness for participants with dementia and social connectedness for carers. We then calculated Reliable Change Index scores and established levels of clinically significant change. We also interviewed couples at the end of the intervention to explore its implementation and acceptability.

Results

All six couples could identify nostalgic memories, with five couples successfully integrating the nostalgic conversations into their day-to-day lives. A sixth couple found it difficult to engage fully with the intervention, but still considered it useful. All six couples manifested a reliable change in at least one outcome, with one couple showing reliable change across three outcomes.

Conclusion

The psychological benefits of nostalgia have been robustly demonstrated in laboratory-based studies. This co-production of an intervention that sets nostalgic recall into the context of a conversation has clinical potential but requires further investigation through a larger study.

The Restorative Power of Nostalgia: Thwarting Loneliness by Raising Happiness During the COVID-19 Pandemic

Lockdowns during the COVID-19 pandemic increased the risk for loneliness. We tested whether nostalgia counteracts loneliness via rises in happiness. We conducted surveys in China ( N = 1,546), the United States ( N = 1,572), and the United Kingdom ( N = 603). Although feeling lonely was associated with unhappiness, it was also associated with nostalgia, which in turn conduced to increased happiness. We complemented these findings with three experiments testing MTurk workers (Study 4, N = 209; Study 5, N = 196; Study 6, N = 190), where we manipulated nostalgia and assessed happiness. Nostalgia increased happiness immediately after the manipulation (Studies 4–6) and, following an induction booster, up to 2 days later (Studies 4–5). Nostalgia is a psychological resource that can be harnessed to raise happiness and help combat loneliness.

How Does Nostalgia Conduce to Global Self-Continuity? The Roles of Identity Narrative, Associative Links, and Stability

In five studies (N = 1,074), we examined the relation-both correlational and causal-between nostalgia, a sentimental longing for one's past, and global self-continuity (GSC), a sense of connection among past, present, and future selves. Furthermore, we addressed mechanisms underlying this relation. We asked, in particular, whether nostalgic individuals might achieve GSC by constructing a narrative to give meaning to life transitions (narrative), connecting to the past (associative links), or believing in a self that is resistant to change (stability). Nostalgia predicted (Studies 1-3) and caused (Studies 4 and 5) GSC. The relation between nostalgia and GSC was consistently mediated by narrative, sporadically mediated by associative links, and unmediated by stability. The robust indirect effect via narrative remained significant when controlling for rumination (Study 3). We discuss theoretical and practical implications.

Nostalgia enhances detection of death threat: neural and behavioral evidence

An experiment examined the potency of nostalgia-a sentimental longing for one's past-to facilitate detection of death-related stimuli, using functional magnetic resonance imaging (fMRI) and behavioral techniques (i.e., judgmental accuracy, reaction times). We hypothesized and found that, at the neural level, nostalgic (relative to control) participants evinced more intense activation in right amygdala in response to death-related (vs. neutral) words. We also hypothesized and found that, at the behavioral level, nostalgic (relative to control) participants manifested greater accuracy in judging whether two death-related (vs. neutral) words belonged in the same category. Exploratory analyses indicated that nostalgic (relative to control) participants did not show faster reaction times to death-related (vs. neutral) words. In all, nostalgia appeared to aid in death threat detection. We consider implications for the relevant literatures.

The Content of Nostalgic Memories Among People Living with Dementia

Although dementia may affect the reliability of autobiographical memories, the psychological properties of nostalgic memories may be preserved. We compared the content of nostalgic (n = 36) and ordinary (n = 31) narratives of 67 participants living with dementia. Narratives were rated according to their self-oriented, social, and existential properties, as well as their affective content. Social properties and affective content were assessed using a linguistic word count procedure. Compared to the ordinary narratives described in the control condition, nostalgic narratives described a typical events, expressed more positive affect, and had more expressions of self-esteem and self-continuity. They were also rated higher on companionship, connectedness and the closeness of relationships, and reflected life as being meaningful. Despite their cognitive impairment, people living with dementia experience nostalgia in similar ways to cognitively healthy adults, with their nostalgic narratives containing self-oriented, social, and existential properties.

Historical Narratives and the Defense of Stigmatized Industries

This study examines how managers and entrepreneurs in stigmatized industries use historical narratives to combat stigma. We examine two industries, the private military contractors (PMC) industry in the United States and the cannabis industry in Canada. In recent decades, the representatives of these industries have worked to reduce the level of stigmatization faced by the industries. We show that historical narratives were used rhetorically by the representatives of both industries. In both cases, these historical narratives were targeted at just one subset of the population. Our research contributes to debates about stigmatization in ideologically diverse societies, an important issue that have been overlooked by the existing literature on stigmatized industries, which tends to assume the existence of homogeneous audiences when researching the efforts of industry representatives to destigmatize their industries.

Nostalgia, reflection, brooding: Psychological benefits and autobiographical memory functions

We sought to clarify the psychological profile of experimentally induced nostalgia, compared to two other modes of thinking about one's past-reflection and brooding-also experimentally induced. We tested both British and Chinese participants. Our main hypothesis was that nostalgia's profile is more positive in terms of six psychological benefits and seven autobiographical memory functions. The results were consistent with the hypothesis. In regard to psychological benefits, nostalgia (vs. reflection and brooding) increased positive affect, self-esteem, self-continuity, social connectedness, and meaning in life. Furthermore, nostalgia increased optimism relative to brooding (but not reflection). In regard to autobiographical memory functions, nostalgia (vs. reflection and brooding) led to higher boredom reduction, conversation, intimacy maintenance, and death preparation, as well as lower bitterness revival. Nostalgia also elevated teach/inform relative to brooding (but not reflection). The findings were similar for British and Chinese participants.

The past as a resource for the bereaved: nostalgia predicts declines in distress

Nostalgia, a sentimental longing for one's past, can serve as a resource for individuals coping with discomforting experiences. The experience of bereavement poses psychological and physical risks. In a longitudinal study, we examined whether dispositional nostalgia predicted reductions in distress associated with the death of a loved one. Undergraduate students (N = 133) provided information regarding their loss (time elapsed since loss, expectedness) and levels of initial grief, nostalgia, and distress (hyperarousal, intrusion, avoidance) at three time points over a one-month period (Times 2 and 3 occurred one week and one month after the initial session, respectively). Individuals experiencing higher nostalgia reported a decrease in intrusive thoughts across time, whereas those experiencing lower nostalgia reported no change in intrusive thoughts across time. Hyperarousal (physical symptoms, negative feelings) decreased across time among individuals with higher initial grief who experienced greater nostalgia, but increased across time among those with higher initial grief who experienced lesser nostalgia. No changes occurred in avoidance. Nostalgia can palliate bereavement.