Global research landscape, knowledge structure, and emerging trends in adverse childhood experiences and personality disorders: a bibliometric analysis

BackgroundThe relationship between adverse childhood experiences (ACEs) and personality disorders (PDs) has attracted sustained attention in psychiatry, psychology, and public health. Existing studies have mainly examined epidemiological associations, specific PDs diagnoses, or mechanisms, whereas bibliometric evidence mapping the field’s knowledge structure and thematic evolution remains limited. This study aimed to characterize trends, contributors, collaboration networks, core themes, and frontiers in ACEs–PDs research.MethodsEnglish-language publications on ACEs and PDs were retrieved from Web of Science Core Collection, Scopus, and PubMed from inception to December 31, 2025. After year screening, document-type filtering, and deduplication, 5,084 records were included. Bibliometric analyses were performed using R, VOSviewer, and CiteSpace. The merged dataset was used to examine annual trends, countries/regions, institutions, authors, journals, and keyword co-occurrence, while WoSCC records were used for co-citation analysis, keyword clustering, and burst detection.ResultsACEs–PDs research showed sustained growth, with a marked increase after 2000. The United States occupied a central position in publication output, citation impact, and international collaboration, while the United Kingdom, Germany, Canada, the Netherlands, and Australia also showed strong influence. Harvard University, the University of London, and Ruprecht Karls University Heidelberg were leading institutions; Zanarini M, Fonagy P, Schmahl C, Paris J, and Kleindienst N were key contributors. Influential journals mainly covered psychiatry, personality disorders, child maltreatment, trauma, and developmental psychopathology. Keyword analyses identified childhood adversity, personality disorder, borderline personality disorder, depression, childhood sexual abuse, and post-traumatic stress disorder as core themes. VOSviewer and CiteSpace analyses indicated that hotspots have expanded from childhood abuse, PDs diagnosis, and psychiatric comorbidity to emotion dysregulation, non-suicidal self-injury, social support, functional connectivity, early intervention, and mechanism validation. Highly cited publications revealed a knowledge base centered on childhood abuse/trauma, borderline personality disorder, psychiatric comorbidity, emotion regulation, and neurobiological mechanisms.ConclusionThis study maps development and knowledge structure of ACEs–PDs research. Findings suggest a shift from exposure–outcome association studies toward comorbidity, intermediate phenotypes, neurobiological mechanisms, and clinical translation. Future research should strengthen longitudinal and cross-cultural designs, consider ACE type, timing, duration, and severity, and integrate neuroimaging, inflammatory, epigenetic, and clinical-course phenotypes.

Shared reading is associated with fewer emotional/behavioral problems and better prosocial behavior in preschool children: a cross-sectional study in western China

BackgroundThe home literacy environment, particularly shared reading, plays a critical role in preschool children’s cognitive and socioemotional development. However, its associations with emotional and behavioral problems remain underexplored in large-scale studies. This study examined the relationship between shared reading and emotional/behavioral problems as well as prosocial behavior in preschool children.MethodsA cross-sectional study was conducted using stratified cluster sampling across 189 kindergartens in a major city in western China. A total of 21,366 parent-child pairs were included. Shared reading was assessed with the reading subscale of the StimQ-P (score range 0–22), which evaluates quantity, diversity of concepts and content, and interactivity quality. Emotional and behavioral problems were measured using the parent-reported Strengths and Difficulties Questionnaire (SDQ). Multivariate logistic regression and generalized additive models were employed to examine associations, adjusting for child age, gender, parental socioeconomic factors, lifestyle variables, and parental mental health (CES-D).ResultsHigher shared reading scores were significantly associated with lower odds of emotional/behavioral problems (adjusted OR = 0.96 per point increase, 95% CI: 0.95–0.97, P < 0.0001) and higher odds of adequate prosocial behavior (adjusted OR = 1.09, 95% CI: 1.08–1.10, P < 0.0001) in fully adjusted models. All four dimensions of shared reading showed independent associations. Nonlinear analyses revealed threshold effects, with associations becoming stronger above approximately 18 points for total difficulties and 15 points for prosocial behavior. These associations were largely consistent across subgroups after correction for multiple testing.ConclusionIn this large cross-sectional study conducted in western China, higher levels of shared reading were associated with lower odds of emotional/behavioral problems and higher odds of prosocial behaviors among preschool children. The results suggest possible threshold patterns in these associations. However, given the cross-sectional nature of the study, causality cannot be established.

Global trends and neurobiological frontiers of manual therapy in sleep disorders: integrating bibliometrics with clinical evidence

BackgroundSleep disorders not only impair nocturnal rest but also significantly compromise daytime functioning, emotional regulation, and overall mental well-being. Beyond conventional pharmacological treatments, manual therapy has emerged as a promising non-pharmacological intervention. Specifically, emerging evidence suggests its benefits may extend to alleviating psychological distress and enhancing mood. This study employs a bibliometric approach to systematically investigate the current status, research hotspots, and future trends of manual therapy for sleep disorders, with an emphasis on its psycho-physiological outcomes.MethodsPublications related to manual therapy for sleep disorders were retrieved from the Web of Science Core Collection (WoSCC). Bibliometric visualizations and analyses were conducted using VOSviewer and CiteSpace. Furthermore, clinical trial records from PubMed were extracted to assess the translational and clinical advancements in this field.ResultsThe analysis included 594 publications originating from 321 institutions across 63 countries. The overall trend demonstrates a consistent annual increase in both publication volume and citation impact, reflecting escalating academic interest. Keyword and literature co-occurrence analyses indicate that exploring neurobiological mechanisms and circadian rhythm regulation are the predominant research frontiers.ConclusionBibliometric evidence indicates that research on manual therapy for sleep disorders is evolving toward multidimensional and interdisciplinary integration. Manual therapy increasingly emerges as a key complementary treatment, exerting therapeutic effects via the regulation of 5-hydroxytryptamine (5-HT) and the Hypothalamic-Pituitary-Adrenal axis (HPA axis). Its safety and efficacy represent distinct advantages; however, future clinical translation necessitates multi-center validation and standardized sham-controlled protocols.

Prevalence of depression in patients with advanced cancer receiving palliative care: a meta-analysis of self‐report instruments

BackgroundAlthough the prevalence of depression in patients with advanced cancer receiving palliative care has been widely reported, the estimates vary substantially. This meta-analysis aimed to determine the pooled prevalence of depression in patients with advanced cancer receiving palliative care and identify its potential moderating factors.MethodsA comprehensive literature search was conducted in PubMed, Web of Science, Scopus, Embase, Cochrane Library, CINAHL, and PsycINFO from inception to April 1, 2026. We calculated pooled prevalence estimates using a random-effects model and assessed heterogeneity using the I² statistic. Subgroup analyses and meta-regression were performed to explore potential sources of heterogeneity.ResultsA total of 29 studies comprising 6054 patients with advanced cancer receiving palliative care were included, yielding a pooled prevalence of depression of 50.9% (95% CI: 41.2-60.5%). Subgroup analyses and meta-regression showed that the pooled prevalence varied significantly by study design and assessment tool.ConclusionsOur findings indicated that depression was very prevalent in patients with advanced cancer receiving palliative care. However, the pooled estimate should be interpreted with caution because the extremely high statistical heterogeneity remained largely unexplained, even after conducting subgroup analyses and meta-regression. Furthermore, the adoption of suitable assessment tools and the implementation of valid screening and care strategies are essential to alleviate emotional distress in this vulnerable group.Systematic review registrationPROSPERO, identifier CRD420261368352

All challenges big and small

When I was 18, I skipped my high school graduation and headed to Kuwait. It was 1991, the first Gulf War had just ended, and the country was in complete chaos. There was little to no electricity, aside from generator power. Rubble and unexploded ordnance were everywhere. Massive oil fires lit up the desert and dimmed the sky overhead. Everything had to be rebuilt, and fast. 

I was there to work on that reconstruction, part of an international effort to fix what war had broken. It was the first time I’d ever seen a truly massive engineering project with my own eyes. The challenge was one that had to be addressed on multiple fronts, simultaneously, to get an entire country back up and running. 

Everywhere you looked, there was something to do. I was mostly working with a labor crew to jump on quick fixes to things like windows and doors blown out in the fighting. But there were, of course, bigger jobs too. Most notably, there were those massive fires to put out. The Iraqi army had set hundreds of oil wells ablaze, the majority of which were still spewing soot and oil smoke into the air. On bad days, the sky would remain dark all day, and the air would burn your eyes and hurt your throat.

It was so apocalyptic that none other than Carl Sagan warned of massive environmental consequences. If smoke from the oil fires reached the stratosphere, he predicted, the result could be akin to the 1815 explosion of the Tambora volcano in Indonesia, which triggered what’s known as “the year without a summer”; global temperatures dropped between 0.4 and 0.7 °C, and crops failed around the world. Fortunately, the plume from Kuwait never made it that high, and although temperatures did decline regionally, there was little effect on a planetary scale. As it turns out, predicting what will or won’t lower global temps is quite hard. (Reader, I am foreshadowing here.) 

Firefighters from companies with monikers like the Red Adair Company or Boots and Coots (as well as less colorfully named outfits, like Bechtel) rushed to Kuwait after the war’s end to figure out how to extinguish the gargantuan blazes and cap the wells. At a hotel in downtown Kuwait City, one of the few places with working phone lines, I would occasionally run into them covered head to toe in black oil and soot. 

Putting out the fires took all sorts of creative thinking. Engineers working in the burning oil fields figured out they could repurpose existing pipelines meant to pump oil out to sea to instead pump water in from the Persian Gulf. One company from Hungary rigged up a firefighting machine called Big Wind by outfitting an old Soviet T-34 tank chassis with two turbines from a MiG-21 fighter jet, each of which could blast 220 gallons of water per second. Sadly, I never got to see it in action (except in the movies). 

Other jobs were less cinematic but no less dire. The retreating Iraqi army had left booby traps all over. They snaked hand grenades into the plumbing (at a facility where I worked, among others). They planted mines everywhere, and those had to be found and removed. Many of them were small plastic “toe poppers” designed not to kill but to maim. Hunting them was a herculean effort. And although it was mostly successful, hundreds of thousands of them, by some estimates, still remain.

Which is to say, we can’t fix everything. But we can be ambitious. We can take on the challenge of making the world better through human ingenuity. 

That’s what the July/August issue of MIT Technology Review is all about. Sometimes the challenges we face are giant, if knowable, like tunneling beneath the seafloor. Some exist at the nanoscale and represent decades of investment and research, as is the case with ASML, a company with the singular ability to produce the machines that make the most advanced computer chips in the world. Others represent problems at a planetary scale and take us into truly unknown territory, like a future where we could engineer the veil of the Tambora volcano to cool the Earth on purpose.

By the end of my 90-day contract in Kuwait, instead of damage everywhere you looked you could see the fruits of a gargantuan international rebuilding effort. The air was not clean, exactly, but inhaling it no longer felt like smoking a pack a day. On the beach, which had been pocked with mines, people swam and splashed at the edge of the gulf. The lights were on. Water ran from the taps. The markets were open. It was a remarkably different place. 

Yes, forces both within and beyond our control will always break things. People will invariably make mistakes, or act out of their own self-interest to the detriment of others. But we can also come together to get to work and, when the smoke clears, find we’ve made real progress. 

Opinion: How I used public radio to recruit 20,000 participants for a peer-reviewed study on walking breaks

Journalists don’t usually appear in the byline of peer-reviewed scientific papers. But recently, I received an email I’d been waiting on for nearly three years: A prestigious journal had accepted the findings from a study I helped lead with more than 20,000 participants across all 50 states. It was published Tuesday evening in the British Journal of Sports Medicine.

My team at NPR had joined forces with physiologist Keith Diaz’s at Columbia University Medical Center to test his lab findings. Specifically, we invited people to try taking movement breaks every 30 minutes, every hour, or every two hours. Our goal was to test whether short walking breaks, which have been shown to offset some of the damage of our sedentary, screen-bound lives, were actually feasible out in the real world.

Read the rest…

Opinion: New human embryo editing advances require tough conversations on ethical boundaries

What if you could precisely change the genome of a pre-implantation human embryo and then safely use that embryo to try to generate a healthier person? It’s a wild idea, but one that technology over the past decade has steadily made a bit less fantastical, at least practically speaking.

But even as CRISPR gene-editing research has advanced, including exciting work reported in a new preprint on base editing of human embryos from geneticist Dieter Egli’s lab at Columbia, the same tough ethical questions remain.

Read the rest…

More Daylight Exposure Could Lower Dementia Risk

Time spent in daylight could lower the risk of dementia and offer extra benefits for people at particularly high risk, new research suggests. The findings, published in General Psychiatry, could provide a low-cost way to support brain health.

Having less than 0.7 hours of bright daytime light per day was a stronger predictor of dementia than six traditional risk factors. Moderately bright natural light exposure—equivalent to an overcast day outdoors—was linked with a 16% reduction in the risk of dementia.

“Daytime light exposure may serve as a novel indicator of dementia risk,” said researcher Hongliang Feng, PhD, from Guangzhou Medical University in China. Natural cycles of darkness at night followed by bright light during the day are fundamental to entrain circadian rhythms. These regulate physiology, behavior, and cognition, with circadian disruptions common among people with dementia.

Noting that modern lifestyles limit daytime exposure to natural light, the researchers investigated exposure to day- and nighttime light using actigraphy devices that track body movements with built-in light sensors.

The study included 87,577 UK Biobank participants who wore accelerometers on their wrists to measure physical activity and natural light exposure for seven days. Over a median follow-up of 8.1 years, 741 of these people (0.85%) developed dementia.

Higher daytime light, both in terms of average exposure and the duration in bright light, was significantly associated with a lower dementia risk. Daytime light exposure above 1000 lux—a moderately bright light level equal to an overcast day outdoors—was associated with a hazard ratio of 0.84 for dementia. Longer exposure to brighter light of at least 0.70 hours with at least 5000 lux was linked with a further risk reduction, and a hazard ratio of 0.83.

In exploratory analyses, circadian rest-activity rhythms (CRAC) and brain structures mediated up to a third of this association, supporting the idea that improvements in circadian rhythms may have contributed to these results. Dementia protection from light exposure was stronger in people with high levels of nighttime light exposure, those with a “night owl” evening chronotype, or who carried the APOE ε4 allele, with a risk reduction of up to 41%.

Having more than 0.7 hours per day of bright daytime light of at least 5000 lux outperformed the established dementia risk predictors, including alcohol consumption, obesity, air pollution, hearing loss, use of vitamin D supplements, and traumatic brain injury.

However, nighttime light showed no significant association with dementia risk.

The findings point to the importance of higher daytime light exposure in reducing the chances of dementia and offer a simple, cost-free way to reduce this risk.

“Practical implementation pathways could include optimizing indoor lighting at home, community‐based outdoor activity promotion programs, and workplace lighting modifications designed to increase daytime light exposure, such as ensuring adequate illumination and access to natural light,” the researchers suggested.

They added: “Our findings underscore a more pronounced protective association of daytime light exposure in individuals with higher average nighttime light exposure, an evening chronotype, or APOE ε4 carrier status.

“In other words, these findings suggest a targeted approach to mitigate dementia risk by increasing daytime light levels for these populations.”

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