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19 pages, 532 KB  
Article
Childhood Play as a Socioemotional Ecology: Understanding Emotional Well-Being in Sociocultural Contexts
by Luis Burgos-Burdiles, Enrique Riquelme Mella and Daniel Quilaqueo Rapiman
Educ. Sci. 2026, 16(6), 980; https://doi.org/10.3390/educsci16060980 (registering DOI) - 19 Jun 2026
Abstract
Emotional well-being has become a central concern in contemporary educational research, particularly in contexts shaped by social and cultural diversity. However, dominant approaches to educational assessment continue to prioritize cognitive outcomes, often overlooking the affective dimensions of children’s everyday experiences. In this context, [...] Read more.
Emotional well-being has become a central concern in contemporary educational research, particularly in contexts shaped by social and cultural diversity. However, dominant approaches to educational assessment continue to prioritize cognitive outcomes, often overlooking the affective dimensions of children’s everyday experiences. In this context, play emerges as a key yet underexplored process through which emotional well-being is constructed in childhood. This study aimed to analyze the role of play in the configuration of emotional well-being in sociocultural educational contexts from a sociocultural and relational perspective. A qualitative multiple-case study was conducted in two rural schools located in Mapuche territories in southern Chile, involving students, teachers, caregivers, and Mapuche knowledge holders (kimches). Data were generated through semi-structured interviews and focus groups and analyzed using inductive coding procedures supported by qualitative data analysis software. The findings indicate that play operates as a socioemotional ecology through which children participate in collective forms of life, construct relationships, and experience emotional well-being in interaction with others, territory, and culturally meaningful practices. Three interconnected dimensions emerged. First, play was experienced as a relational, territorialized, and culturally situated practice sustained through participation, collective interaction, and intergenerational transmission. Second, emotional well-being emerged through enjoyment, companionship, belonging, and opportunities for social participation. Third, well-being appeared as a situated experience dependent on access to meaningful spaces, material conditions, cultural repertoires, and opportunities for play. Participants also identified tensions associated with technological change, the reduction in free play opportunities, and transformations in community life, while highlighting the potential role of schools in revitalizing culturally significant play practices such as palín and linao. These findings suggest that emotional well-being is not simply an individual psychological state but a relational and sociocultural accomplishment emerging through participation in meaningful play practices. The study contributes to interdisciplinary debates on childhood, emotional well-being, intercultural education, and sociocultural approaches to development by proposing the concept of play as a socioemotional ecology. Full article
13 pages, 1698 KB  
Article
Forest Bathing Associated with Increased Human Well-Being in a Rural Community of Chile
by Brenda Buscaglione, Rodrigo Vargas-Gaete, Natalia Gertner, Paula Cantarutti, Carlos Inaipil and Christian Salas-Eljatib
Sustainability 2026, 18(12), 6314; https://doi.org/10.3390/su18126314 (registering DOI) - 19 Jun 2026
Abstract
There is growing recognition of the health benefits that forests and green spaces provide to people. Forest bathing is a practice that promotes relaxation and human well-being through immersive, mindful experiences in forest environments. How forest bathing affects distinct dimensions of well-being is [...] Read more.
There is growing recognition of the health benefits that forests and green spaces provide to people. Forest bathing is a practice that promotes relaxation and human well-being through immersive, mindful experiences in forest environments. How forest bathing affects distinct dimensions of well-being is still not fully understood. In this study, we assessed changes in well-being before and after two and four forest bathing sessions and examined whether a brief introductory session on forest ecosystem services enhanced participants’ overall perception of well-being. Forty adults from a rural community in southern Chile completed the Warwick–Edinburgh Mental Well-being Scale to assess perceived well-being. Participants showed improvements in overall well-being after two sessions, with the most significant gains in relaxation, optimism, clarity of thought, and social connection. Scores remained stable between the second and fourth sessions, suggesting that initial exposure offers the most substantial benefits, while continued practice helps maintain them. Although the introductory session did not significantly affect overall well-being scores, it showed positive effects on optimism and social connection. These findings highlight forest bathing as an effective nature-based intervention to promote emotional and social well-being, with implications for policies advancing public health and sustainability goals. Full article
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24 pages, 3312 KB  
Article
Leveraging Multi-Source Data Fusion Approach for Fine-Grained Affective-Appraisal Analysis in TPD-Oriented Online Professional Learning
by Di Chen, Xinyue Xu, Ruiyang Gao and Yuhong Liu
Behav. Sci. 2026, 16(6), 1025; https://doi.org/10.3390/bs16061025 - 18 Jun 2026
Abstract
Teacher professional development (TPD) is increasingly mediated by online platforms, yet emotion analysis in this context remains underdeveloped because teachers’ professional discourse is often reflective, evaluative, and shaped by professional norms. To address this challenge, this study proposes a fine-grained, low-intrusion affective-appraisal analysis [...] Read more.
Teacher professional development (TPD) is increasingly mediated by online platforms, yet emotion analysis in this context remains underdeveloped because teachers’ professional discourse is often reflective, evaluative, and shaped by professional norms. To address this challenge, this study proposes a fine-grained, low-intrusion affective-appraisal analysis framework for TPD-oriented online professional learning that integrates textual evidence with platform interaction logs. The framework retains pleasure, arousal, and dominance from the pleasure–arousal–dominance (PAD) model and introduces utility as an appraisal-related dimension, capturing teachers’ perceived usefulness, value judgment, and professional learning gain. Methodologically, it combines textual representations based on Bidirectional Encoder Representations from Transformers (BERT), intra-week long short-term memory (LSTM) aggregation, interpretable behavioral-log features, and feature-level fusion. Data were collected from an authentic TPD-oriented online course involving 107 pre-service teachers, yielding 1276 teacher-week samples from 4300 texts and 264,028 interaction records. Results show that intra-week sequential modeling improves the macro-averaged F1 score (Macro-F1) over both the term frequency–inverse document frequency plus support vector machine (TF-IDF+SVM) baseline and BERT-based weekly text concatenation, with statistically significant gains over the non-sequential BERT-concat model across all four dimensions. Adding interaction logs improves accuracy across all dimensions and provides complementary process-based evidence, especially for arousal and utility. By linking a four-dimensional affective-appraisal framework with text-log fusion, this study offers a scalable and context-sensitive approach to affective-appraisal analytics in pre-service teacher professional learning. Full article
(This article belongs to the Section Educational Psychology)
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30 pages, 6497 KB  
Article
Heterogeneity in Quantity–Quality Collaboration: Using Geographically Visualized SHAP Interaction Analysis to Explore Relationships Between Multidimensional Urban Green Space Features and Life Satisfaction of Older Adults
by Keju Liu, Dian Zhou, Yingtao Qi and Mingzhi Zhang
Forests 2026, 17(6), 713; https://doi.org/10.3390/f17060713 - 18 Jun 2026
Abstract
Urban green spaces (UGSs) are considered crucial for enhancing older adults’ subjective well-being. However, limited studies have explored the synergistic effects of UGS quality and quantity on satisfaction across green spaces, residential environments, and life domains, making it challenging to uncover the multifaceted [...] Read more.
Urban green spaces (UGSs) are considered crucial for enhancing older adults’ subjective well-being. However, limited studies have explored the synergistic effects of UGS quality and quantity on satisfaction across green spaces, residential environments, and life domains, making it challenging to uncover the multifaceted sustainable benefits of UGSs on older adults’ subjective well-being. This study drew on multi-source data and place attachment theory to depict neighborhood-accessible UGS quantity (provision, accessibility, and visibility) and quality (cognition, behavior, and affect). Through the geographical visualization of bivariate SHapley Additive exPlanations (SHAP) interaction values extracted from the trained eXtreme Gradient Boosting (XGBoost) model, and the comparison of bivariate SHAP maps with univariate SHAP maps, the study revealed the nonlinear geographic associations between UGS quantity and quality and three types of satisfaction. The results showed that when UGS quantity and quality coexisted, variations in the impact of quantity on older adults’ satisfaction were associated with quality differences. The gain effect of quality on quantity was more significant in areas with limited green space within a 500 m buffer zone. UGSs made a direct contribution to green space satisfaction, while their indirect association with life satisfaction surpassed that of residential satisfaction due to their provision of emotional qualities. This study calls for neighborhood green planning aimed at improving older adults’ subjective well-being, which should shift focus from quantity to quality and balance the relationship between quantity and quality based on regional characteristics. Full article
(This article belongs to the Section Urban Forestry)
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16 pages, 915 KB  
Article
Nature Exposure and Problematic Smartphone Use Among Chinese High School Students: The Mediating Roles of Anxiety and Self-Control
by Li Wu, Ting Han, Gengfeng Niu and Xiaxia Xu
Behav. Sci. 2026, 16(6), 1019; https://doi.org/10.3390/bs16061019 - 18 Jun 2026
Abstract
Problematic smartphone use (PSU) has become an increasingly important public health concern among adolescents, yet the potential protective role of restorative environmental experiences (nature exposure) remains insufficiently understood. Under the perspective of Stress Reduction Theory (SRT) and Attention Restoration Theory (ART), this cross-sectional [...] Read more.
Problematic smartphone use (PSU) has become an increasingly important public health concern among adolescents, yet the potential protective role of restorative environmental experiences (nature exposure) remains insufficiently understood. Under the perspective of Stress Reduction Theory (SRT) and Attention Restoration Theory (ART), this cross-sectional study examined the association between nature exposure and adolescent PSU, with anxiety and self-control tested as potential mediators. The sample comprised 700 high school students recruited from several high schools in Qinghai Province, China (52.00% female; M age = 17.01 years, SD = 0.78). Nature exposure, anxiety, self-control, and PSU were assessed using self-report measures. The results showed that nature exposure was negatively associated with PSU; anxiety and self-control significantly mediated this association both independently and sequentially. Specifically, more nature exposure was associated with lower anxiety and higher self-control, which, in turn, were associated with lower PSU. These findings suggest that restorative environmental experiences may be associated with reduced vulnerability to PSU through interconnected affective and self-regulatory processes. The present study extends existing literature by integrating emotional and attentional restoration perspectives within a unified framework linking nature exposure to adolescent PSU, and provides implications for the prevention and intervention of PSU. Full article
(This article belongs to the Section Developmental Psychology)
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13 pages, 502 KB  
Article
Dental Anxiety Among Children Living in an Orphanage Compared to Children Living with Both of Their Parents in Saudi Arabia: A Case–Control Study
by Yazeed Thamer Alshobaili, Rana Abdullah Alamoudi, Mohammed Jamal Barry, Sara Mustafa Bagher and Heba Jafar Sabbagh
Healthcare 2026, 14(12), 1751; https://doi.org/10.3390/healthcare14121751 - 17 Jun 2026
Viewed by 20
Abstract
Background/Objectives: Dental anxiety (DA) is a well-known obstacle affecting dental care in children. Children living in orphanages are a special population with healthcare needs. The aim of the study was to assess DA among children living in orphanages compared to those living [...] Read more.
Background/Objectives: Dental anxiety (DA) is a well-known obstacle affecting dental care in children. Children living in orphanages are a special population with healthcare needs. The aim of the study was to assess DA among children living in orphanages compared to those living with both biological parents. Methods: This frequency-matched case–control study included 61 children living in orphanages in Jeddah city and 122 age- and gender-matched peers living with both parents in Jeddah, Saudi Arabia. Demographic and background data, including medical history, dental visit history, and Adverse Family Experiences (AFEs), were completed by the caregiver. Dental anxiety was assessed subjectively using the self-reported Abeer Children Dental Anxiety Scale (ACDAS) and objectively by the Venham Clinical Anxiety Rating Scale (VCARS). Results: The prevalence of children with DA in the study sample among those living in orphanages was 18%. AFEs were significantly higher among children living in orphanages (96.7% vs. 32%, p < 0.001). ACDAS and VCARS showed fewer children with DA living in orphanages compared to children living with both parents. Logistic regression showed that living in orphanages decreased the adjusted odds ratio (AOR) of dental anxiety according to ACDAS (AOR = 0.36; p = 0.06) and VCARS (AOR = 0.43, p = 0.040). Conclusions: Although children living in orphanages presented with lower DA than those living with both parents, this may point to differences in emotional expression rather than true emotional state. Clinicians should not rely only on behavioral observations when treating institutionalized children. Full article
34 pages, 436 KB  
Review
Can Dominant Architectural Culture Influence Cognitive Processes? Architectural Intelligence and AI-Assisted Evaluation
by Stephen M. Peña and Nikos A. Salingaros
Buildings 2026, 16(12), 2404; https://doi.org/10.3390/buildings16122404 - 17 Jun 2026
Viewed by 193
Abstract
The concept of technological singularity is discussed here in the context of architecture (of buildings, not software). This is the point at which non-human intelligence is conjectured to surpass ordinary human cognitive limits. Empirically constrained AI may already offer a useful corrective to [...] Read more.
The concept of technological singularity is discussed here in the context of architecture (of buildings, not software). This is the point at which non-human intelligence is conjectured to surpass ordinary human cognitive limits. Empirically constrained AI may already offer a useful corrective to mainstream architectural culture in one crucial aspect—its capacity to evaluate design that adapts to human emotional health. Postwar building architecture as an institutional power system rewards abstraction and stylistic conformity through media prestige while not always accounting for embodied human experience. By narrowing judgment criteria, architectural studio pedagogy trains tacitly for imitation, not seeking evidence that conflicts with dominant formal ideologies. Yet findings from environmental psychology, health-related design research, neuroscience, and recent AI-based studies show that built form measurably affects empathic response and user well-being. This paper examines what effects dominant architectural culture could impose on the public by producing informationally impoverished, stressful environments. We argue that built environment design may suffer from an epistemic closure because (i) architectural education does not foster curiosity in how design affects users—the core mechanism for intelligence development—and (ii) architectural media may legitimate non-adaptive form languages by habituating populations to ignore distress signals from geometries associated with elevated stress markers. However, empirically constrained AI can now be directed to apply that relevant knowledge base to improve the built environment. The most suggestive evidence in the paper is that LLM emotional scores, LLM geometric scores, human eye-tracking, and large public surveys converge on the same designs. In this sense, the AI singularity can be framed as a domain-specific, testable hypothesis in architecture. This paper does not report new generated results derived from Empirically Constrained Scaffolding (ECS), which appear in prior applications, but reproduces the original prompts as an illustration of the method. Full article
(This article belongs to the Special Issue BioCognitive Architectural Design)
15 pages, 304 KB  
Article
Historic Belonging and Contemporary Displacement: Syrian Armenians Navigating “Status” in Armenia
by Setrag Hovsepian
Soc. Sci. 2026, 15(6), 394; https://doi.org/10.3390/socsci15060394 - 16 Jun 2026
Viewed by 162
Abstract
Internal and civil wars affect the lives of religious and ethnic minorities the most. For Syrian citizens of Armenian origin, the Republic of Armenia represented one of the most accessible and meaningful destinations to relocate to, shaped by shared ethnicity, collective memory, and [...] Read more.
Internal and civil wars affect the lives of religious and ethnic minorities the most. For Syrian citizens of Armenian origin, the Republic of Armenia represented one of the most accessible and meaningful destinations to relocate to, shaped by shared ethnicity, collective memory, and historical ties. When the Syrian war erupted in 2011, thousands opted to resettle in Armenia, yet they and host institutions struggled to categorize them as immigrants, refugees, or repatriates. This ambiguous status has received little scholarly attention. To explore these complexities, the study employed a survey-based research design involving 124 participants, supplemented by an open-ended question intended to capture personal narratives and nuanced identity negotiations. The manuscript examines how the labels immigrant, refugee, and repatriate carry distinct legal, social, and emotional implications, especially against the backdrop of the 1915 Armenian Genocide’s enduring memory and the particularly negative connotations of “immigrant” and “refugee” in Western Armenian and Arabic languages. Within this contested semantic and policy terrain, repatriation appears not merely as a bureaucratic category but as a culturally resonant and sometimes preferred pathway for some Diaspora Armenians, informed by lifelong exposure to repatriation narratives through formal education (language textbooks) and informal communal practices. The case sheds light on the broader conception of stakeholders, including how they self-identify, how they understand their status in Armenia, and the factors shaping their choices, particularly in the context of contemporary geopolitics and the role of education in influencing external perceptions of them. Full article
23 pages, 1076 KB  
Article
Restorative Indoor Blue Space Experiences and Visit Intention in Aquarium Tourism: Implications for Sustainable Marine Leisure
by Kabsoo An and Jangheon Han
Sustainability 2026, 18(12), 6202; https://doi.org/10.3390/su18126202 - 16 Jun 2026
Viewed by 258
Abstract
This study examines how aquarium visitors’ perceived restorative environmental attributes influence leisure life satisfaction, positive emotional experience, and visit intention. Drawing on Attention Restoration Theory, aquariums are conceptualized not merely as indoor exhibition facilities but as restorative indoor blue space leisure settings. Using [...] Read more.
This study examines how aquarium visitors’ perceived restorative environmental attributes influence leisure life satisfaction, positive emotional experience, and visit intention. Drawing on Attention Restoration Theory, aquariums are conceptualized not merely as indoor exhibition facilities but as restorative indoor blue space leisure settings. Using survey data from 452 Korean adults who had visited major aquariums within the previous 12 months, this study employed structural equation modeling and multi-group analysis. The results show that being away, fascination, and compatibility positively affected leisure life satisfaction, while fascination and compatibility significantly enhanced positive emotional experience. Both leisure life satisfaction and positive emotional experience were found to increase visit intention. Multi-group analysis revealed a significant difference only in the relationship between compatibility and positive emotional experience. Specifically, compatibility had a stronger effect on positive emotional experience among repeat visitors. In this study, Attention Restoration Theory is extended to aquarium-based indoor blue space settings, and restorative environmental perceptions are shown to influence and shape visitor responses through both cognitive and affective pathways. Although the outcome variable primarily captures visitors’ intention to revisit and recommend aquariums rather than direct pro-environmental behavior, the findings offer implications for sustainable marine leisure by showing how restorative and emotionally meaningful aquarium experiences can support conservation-oriented communication and longer-term visitor engagement. Practically, the findings suggest that aquarium managers should move beyond short-term price-oriented strategies and design restorative experiences that enhance fascination and compatibility, thereby strengthening emotionally meaningful and longer-term visitor engagement in sustainability-relevant leisure contexts. Full article
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18 pages, 2260 KB  
Article
Parent–Infant Relational Health in a Disaster-Affected Region: A Qualitative Examination of Lived Experience and Perceived Impact of a Brief, Online Support Program
by Zoe C. G. Cloud, Nicole Paterson, Holly Foster, Tanudja Gibson, Shikkiah de Quadros-Wander, Anna T. Booth and Jennifer E. McIntosh
Healthcare 2026, 14(12), 1733; https://doi.org/10.3390/healthcare14121733 - 16 Jun 2026
Viewed by 147
Abstract
Background/Objectives: The family constitutes a primary ecological system shaping infant emotional and mental health. Parent responsiveness in particular shapes early regulatory capacities in the developing child. Added contextual stress such as that associated with natural disasters may strain caregiving relationships. Brief, universally accessible [...] Read more.
Background/Objectives: The family constitutes a primary ecological system shaping infant emotional and mental health. Parent responsiveness in particular shapes early regulatory capacities in the developing child. Added contextual stress such as that associated with natural disasters may strain caregiving relationships. Brief, universally accessible parenting interventions offer scalable support for strengthening early relational health and may be useful in contexts of natural disaster-related stress as well as in the general population. This qualitative study examined the perceived impact and contextual relevance of MERTIL (My Early Relational Trust-Informed Learning) for Parents, a brief digital psychoeducational parenting program targeting early relational health, among families raising young children in disaster-affected communities. Methods: Fourteen parents residing in the Hunter New England and Central Coast region of New South Wales, Australia, with young children aged 0–5 years, participated in semi-structured interviews conducted approximately 6 months after completing MERTIL for Parents. Interviews explored lived experiences of parenting in the context of natural disaster (analysed via applied phenomenological methods) and parents’ perceptions of program components that supported everyday caregiving (analysed via reflexive thematic analysis and content analysis). Results: Parents described interconnected personal, relational, and environmental stressors that influenced aspects of the parent–infant relationship. Key retained knowledge from the program included a normalisation of parenting challenges, a strengthened understanding of attachment, trust, safety and repair, and attuned, emotion-focused parenting practices. Conclusions: This pilot study illuminates the lived experience of parenting in disaster prone regions and highlights the potential for this brief, universal digital parenting program to provide support for early relational health in such contexts. Full article
(This article belongs to the Special Issue Family Influences on Child and Adolescent Health: 2nd Edition)
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17 pages, 5508 KB  
Article
Towards Socio-Biophilic Synergy in the Indoor Built Environment: A Post-Occupancy Evaluation of Biophilic Placemaking in University Learning Environments
by Ghada ElKony, Hally ElKony, Tufail AlYousef and Ossama Zakaria
Sustainability 2026, 18(12), 6188; https://doi.org/10.3390/su18126188 - 16 Jun 2026
Viewed by 173
Abstract
University common spaces are increasingly recognized as critical environments for social interaction and informal learning; yet empirical frameworks that integrate biophilic design, placemaking, and affective post-occupancy evaluation remain limited in educational contexts. This research adopts a post-occupancy evaluation (POE) design to assess how [...] Read more.
University common spaces are increasingly recognized as critical environments for social interaction and informal learning; yet empirical frameworks that integrate biophilic design, placemaking, and affective post-occupancy evaluation remain limited in educational contexts. This research adopts a post-occupancy evaluation (POE) design to assess how spatial configuration and biophilic placemaking strategies influence emotional experience, social interaction, and perceived inclusion in a redesigned university lobby serving five colleges. A structured questionnaire was administered to 212 users using the Pleasure–Arousal–Dominance (PAD) model, triangulated with systematic behavioral observations and spatial analysis. The results demonstrate that integrating biophilic elements, improving spatial organization, and introducing student-led activity areas yielded high perceived comfort (M = 3.75), balanced stimulation (M = 3.10), and a stronger sense of spatial control (M = 3.16), with significant positive correlations between biophilic integration scores and all three PAD dimensions. These findings introduce and empirically validate the concept of Socio-Biophilic Synergy and propose the Biophilic Placemaking Framework (BPF) as a unified evaluative structure, demonstrating that the intentional spatial design of the university spaces can meaningfully enhance social sustainability and emotional well-being in university environments. Full article
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17 pages, 362 KB  
Article
Perceived Impact of Social Media Use on Mental Health and Sleep-Related Outcomes Among Healthy Social Media Users: A Cross-Sectional Study
by Mohammed A. Aljunaid, Ruba Alghannami, Elaf Alshaikh, Abdulrahman Khalifa, Jood E Alzohari, Waad Alshamrani and Rahaf Alharbi
Healthcare 2026, 14(12), 1732; https://doi.org/10.3390/healthcare14121732 - 16 Jun 2026
Viewed by 145
Abstract
Background and objectives: Social media use has become pervasive among the general population, with growing concern regarding its potential effects on mental health and sleep. While existing studies report associations between social media engagement and psychological outcomes, limited attention has been given to [...] Read more.
Background and objectives: Social media use has become pervasive among the general population, with growing concern regarding its potential effects on mental health and sleep. While existing studies report associations between social media engagement and psychological outcomes, limited attention has been given to users’ self-perceived impact. To assess the self-perceived impact of social media use on mental health and sleep-related outcomes among healthy adolescents and adults aged 16–50 years old, and to identify associated demographic and behavioral factors. Methods: A cross-sectional survey was conducted among residents of Jeddah, Saudi Arabia, aged 16–50 years without a history of psychiatric or chronic sleep disorders, using a structured online questionnaire. Perceived mental health impact was assessed using a six-item study-specific questionnaire evaluating participants’ subjective perceptions regarding emotional and psychological responses to social media exposure. Higher perceived impact was defined as a composite score of 12–24 points on the study-specific scale. Data included sociodemographic characteristics, patterns of social media use, perceived mental health impact assessed through a 6-item Likert scale, and sleep-related outcomes. Associations were evaluated using chi-square tests and logistic regression analysis. Results: Most participants reported daily social media use exceeding 3 h, with 44.9% engaging in late-night use and 87.6% using devices within 30 min before sleep. Overall, 18.6% exhibited higher perceived mental health impact. Higher odds were observed among younger participants, students, and single individuals. Snapchat and YouTube use, and late-night engagement were independently associated with increased perceived impact. Approximately one-third reported insomnia after social media use, and 44.3% perceived improved sleep with reduced usage. Conclusions: Social media use is widely prevalent and commonly perceived to negatively affect mental well-being and sleep, particularly with intensive and late-night use. Self-awareness of these effects may represent a valuable leverage point for prevention, supporting the need for targeted digital wellness strategies and public health interventions. Full article
(This article belongs to the Section Mental Health and Psychosocial Well-being)
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11 pages, 6192 KB  
Perspective
Ear Thermography as a Candidate Dynamic Index of Sympathetic and Parasympathetic Activity
by Wataru Sato, Budu Tang and Koh Shimokawa
Sensors 2026, 26(12), 3819; https://doi.org/10.3390/s26123819 - 16 Jun 2026
Viewed by 213
Abstract
Monitoring the activity of the autonomic nervous system, including the sympathetic and parasympathetic divisions, plays a crucial role in studying emotional processing. However, few methods allow the dynamic tracking of parasympathetic activity. Here, we propose a testable hypothesis that ear thermography may serve [...] Read more.
Monitoring the activity of the autonomic nervous system, including the sympathetic and parasympathetic divisions, plays a crucial role in studying emotional processing. However, few methods allow the dynamic tracking of parasympathetic activity. Here, we propose a testable hypothesis that ear thermography may serve as a dynamic index of sympathetic and parasympathetic activity, with a time resolution of seconds. Anatomical and physiological evidence suggests that the vascular structures of the ear may be innervated in a region-specific manner by the autonomic nervous system, with the posterior regions (e.g., the helix) predominantly influenced by sympathetic activity and the anterior regions (e.g., the tragus) potentially affected by parasympathetic mechanisms. Recent thermographic studies during emotional film viewing have demonstrated distinct spatial and functional patterns: posterior regions showed a linear negative association between temperature and emotional arousal, consistent with sympathetic vasoconstriction, whereas anterior regions exhibited a non-linear (inverted-U-shaped) relationship, resembling the known non-monotonic characteristics of parasympathetic activity. These findings suggest that ear thermography may be used to assess sympathetic- and parasympathetic-related dynamic processes, although direct evidence remains to be established. Full article
(This article belongs to the Special Issue Perspectives in Intelligent Sensors and Sensing Systems)
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16 pages, 3722 KB  
Article
Effect of Emotional States on EEG-Based Biometric Identification: A Comparative Study of Classifiers
by Carolina Duque-Mejia, Camilo Zapata-Hernandez, Eduardo Duque-Grisales, Leonardo Serna-Guarin, Gustavo Lodoño-Ossa and Miguel A. Becerra
Bioengineering 2026, 13(6), 689; https://doi.org/10.3390/bioengineering13060689 - 16 Jun 2026
Viewed by 198
Abstract
Electroencephalographic (EEG) signals have been extensively studied for emotion detection and, more recently, as an alternative for biometric identification and authentication. Biometric methods based on physiological signals are a non-conventional approach for personal identification, and their study is currently considered an open research [...] Read more.
Electroencephalographic (EEG) signals have been extensively studied for emotion detection and, more recently, as an alternative for biometric identification and authentication. Biometric methods based on physiological signals are a non-conventional approach for personal identification, and their study is currently considered an open research field. However, EEG-based biometric systems face several challenges, including the influence of emotional states, which can affect their performance. This study evaluates the effect of emotional states on the performance of an EEG-based biometric system. Four widely used databases for biometrics and emotion recognition (DEAP, MAHNOB, SEED, and LUMED-2) were selected for analysis. Feature extraction was performed using multiple strategies in the time, frequency, and time–frequency domains. The performance of various classifiers—support vector machine (SVM), random forest (RF), artificial neural networks (ANN), and k-nearest neighbors (K-NN)—was evaluated separately. Furthermore, stacking was used as a classifier fusion method. Explicit modeling of emotional states contributed to improving classifier performance. The best model based on classifier fusion achieved an accuracy of 95.73 ± 1.83%. These results indicate that incorporating information about emotional state into EEG-based biometric systems can contribute to the development of more robust and realistic identification solutions. Full article
(This article belongs to the Special Issue Generative AI for Biosignal and Medical Imaging Analysis)
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13 pages, 815 KB  
Article
Effects of Maternal Omega-3 Supplementation, Sex, and Strain on Chick Behaviour During Social Isolation
by Rosie H. Whittle, Elijah G. Kiarie and Tina M. Widowski
Animals 2026, 16(12), 1852; https://doi.org/10.3390/ani16121852 - 16 Jun 2026
Viewed by 168
Abstract
Omega-3 fatty acids transferred from breeder hens to their developing offspring via the egg may affect the offspring’s emotional reactivity and fearfulness. In one experiment, broiler (meat) parent flocks were fed flaxseed or control diets during rearing, laying, or both. In a second [...] Read more.
Omega-3 fatty acids transferred from breeder hens to their developing offspring via the egg may affect the offspring’s emotional reactivity and fearfulness. In one experiment, broiler (meat) parent flocks were fed flaxseed or control diets during rearing, laying, or both. In a second experiment, ISA Brown and Shaver White layer (egg) parent flocks were fed flaxseed or control diets throughout rearing and laying. Male and female broiler offspring and female layer offspring underwent a five-minute social isolation test at 4–6 days of age. Vocalisations, escape attempts, and freezing (immobility) durations were recorded. In the broiler experiment, maternal laying diet and sex interacted to affect vocalisation frequency (χ2 = 5.57, p = 0.02). Male broiler chicks from the flaxseed maternal laying diet vocalised most frequently (p < 0.04). An interaction between the rearing diet, laying diet, and sex affected escape attempts in broiler offspring (χ2 = 6.03, p = 0.01). Control-control males made the fewest escape attempts. In the layer experiment, no maternal diet effects were observed in any offspring, but Brown chicks vocalised substantially more than White chicks (χ2 = 4.56, p = 0.03), and White chicks spent more time frozen (χ2 = 5.86, p = 0.02). We found sex-specific effects of maternal flaxseed diets on measures of anxiety and fear of broiler chickens in social isolation. Genetic strain-dependent effects in layer chickens suggest differing behavioural responses to isolation. Full article
(This article belongs to the Special Issue Poultry Welfare—Behavioural Assessment of Affective State)
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