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Research Square

ISSN 2693-5015

301 papers in the library · 141 citations · publishing 2020-2026

Papers

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Relationship between self-transcendence and quality of life among lung cancer patients: A latent profile analysis

Research Square June 7, 2026 Yaohua Guo, Fengping Zheng, Hui Yin et al. preprint

Abstract Purpose This study aimed to identify the latent profiles of self-transcendence in lung cancer patients and examine the relationship between these memberships and QoL. Methods A cross-sectional study was conducted between April and September 2025, recruiting 318 lung cancer patients via convenience sampling at a teaching hospital in Sichuan Province, China. Data were collected by using...

Autonomic and Gut Microbiome Correlates of the Online Mindfulness- and Compassion-Based Intercare Program for Parental Burnout: Exploratory Secondary Analysis of a Randomized Clinical Trial

Research Square June 5, 2026 Francisco Villalón, Maximiliano Escaffi‐Schwarz, Ismael Palacios-García et al. preprint

Abstract Objectives: To examine exploratory autonomic and gut microbiome correlates associated with an online mindfulness- and compassion-based intervention for parental burnout. Methods: This exploratory secondary analysis used data from a three-arm randomized clinical trial conducted in Chile. The parent trial included 595 women with at least one child who teleworked at least one day per...

Preliminary Observations of Coordinated Psychological and Neurophysiological Shifts Following a Five-Day Multi-Modality Immersive Program: A Retrospective Observational Pilot Analysis (n = 15)

Research Square June 5, 2026 Ronald Blackburn, Julia Brodska preprint

Abstract Background Individual therapeutic and somatic modalities—including mindfulness meditation, breathwork, structured movement, sound therapy, and heart coherence training—have each been independently associated with reductions in perceived stress, improvements in sleep quality, and shifts in quantitative electroencephalographic (qEEG) indices of neural regulation. Whether concurrent...

Prolonged Grief Symptom Outcomes During At-Home Ketamine-Assisted Therapy: A Real-World Retrospective Analysis of 503 Adults

Research Square June 2, 2026 Davis Carter, Ian Reardon, Jack Swain et al. preprint

Abstract Background Prolonged grief disorder (PGD) is a clinically distinguishable bereavement-related condition characterized by persistent yearning, identity disruption, and impaired functioning, formalized in DSM-5-TR and ICD-11 (6L72) and empirically distinguishable from but frequently co-occurring with major depressive disorder. Approximately 7 to 10 percent of bereaved adults meet...

The Impact of Trauma-Informed Meditation on Posttraumatic Growth: A Randomized Controlled Trial

Research Square June 1, 2026 Margaret M. Poandl, Daniel Gutiérrez, Stephanie Dorais preprint

Abstract Objectives Research on interventions designed to increase posttraumatic growth (PTG) among interpersonal trauma survivors is limited. The purpose of this study was to examine the impact of a six-week trauma-informed meditation intervention on PTG. Additionally, we examined posttraumatic stress (PTS), and analyzed the variables of dispositional mindfulness, hope, spirituality, and...

Data‑Driven Analysis of Multidimensional Inner Transformation within the Chelle Framework

Research Square May 28, 2026 Nasim Sadat Mosavi preprint

Abstract Practice‑based frameworks aimed at fostering inner transformation, emotional regulation, and self‑awareness are increasingly proposed as pathways for personal and societal development. However, large‑scale empirical evaluations remain limited, and existing scientific investigations focus predominantly on mindfulness‑ and meditation‑based interventions. Here, we introduce a...

Structural Neurotoxic and Neuroprotective Effects of Ketamine and Esketamine in Preclinical and Human Studies: A Systematic Review

Research Square May 27, 2026 Tychique T. Wasolua, Tanner J. Bommersbach, Roger S McIntyre et al. preprint

Abstract Ketamine and esketamine are increasingly used as rapid-acting antidepressants, yet concerns remain regarding potential structural neurotoxicity, particularly with chronic or high-dose exposure. Despite expanding clinical use, no comprehensive systematic review has integrated neurotoxicity evidence across preclinical and human studies while formally evaluating methodological quality....

Symptom-Specific Nuances in Psychedelic Integration: A Qualitative Study of Insights from Therapists Supporting Extended Difficulties in Naturalistic Settings

Research Square May 21, 2026 Ali Wright, David Luke, Oliver Robinson et al. preprint

Abstract Background Psychedelic consumption in naturalistic settings is rising, and a significant minority of users experience extended psychological difficulties. Yet, research exploring these challenges remains limited. Despite widespread endorsement of integration practices, little is known about how therapists approach integration for heterogeneous extended difficulties. Methods Nineteen...

DMT, Madness, and Healing: Psychosis Model, Therapy Model, and Their Relations to Mystical Experiences and Positive Emotionality

Research Square May 20, 2026 Isabel Wießner, Marcelo Falchi-Carvalho, Sophie Laborde et al. preprint

Abstract Paradoxically, psychedelics have long been used as models of both psychosis and therapy. After proposing mystical experiences as a link between these models for lysergic acid diethylamide (LSD), we aimed to extend and refine this framework for N,N -Dimethyltryptamine (DMT). In a randomised, placebo-controlled, double-blind, crossover study, 25 healthy participants received DMT (60mg)...

Child and maternal health outcomes following antenatal exposure to classic psychedelic substances: a systematic review.

Research Square May 19, 2026 Sunjuri Sun, Claudia Hanson, Peter S. Hendricks et al. preprint

As the cultural, scientific, and legal landscape surrounding psychedelics continues to shift toward greater access and acceptability, it is likely that increasing numbers of women of reproductive age may be exposed to these substances. Despite this, the evidence on antenatal exposure has not been systematically reviewed. To synthesize the human literature on child and maternal outcomes...

DOI: 10.21203/rs.3.rs-9732799/v1 (opens in new tab) Full text (opens in new tab) Obstetrics Perinatal outcomes Population health Pregnancy +3

Behavioral and Self-Report Cognitive Impairment Differences between Fast-Acting, Standard, and Placebo Cannabis Edibles

Research Square May 18, 2026 Samuel M. DiCecco, Emma E Smith, Kira L. Sturgess et al. preprint

Abstract Rationale: Fast-acting edible cannabis products are marketed as producing quicker effects than standard edibles, but whether faster absorption translates into earlier cognitive impairment due to cannabis intoxication is unclear. Objectives : We compared fast-acting, standard, and placebo edibles in a double-blind, within-subject crossover study of 20 adult individuals who frequently...

Adolescents’ and Young Adults’ Integration Processes for Extended Difficulties Following Challenging Psychedelic Experiences: A Qualitative Investigation

Research Square May 14, 2026 Sam Barfoot, David Luke, Oliver Robinson et al. preprint

Abstract Background As interest in psychedelics grows, concerns remain about ethical use and the documentation of adverse psychological effects. Use is increasing, yet long-term challenges - particularly among adolescents and young adults - are under-researched. This group is especially vulnerable, highlighting the need to understand how psychedelic-related challenges are experienced in...

DOI: 10.21203/rs.3.rs-9668424/v1 (opens in new tab) Full text (opens in new tab) Mindfulness Psychoeducation Thematic analysis Qualitative research +9

The Dynamic Existence Threshold: Measuring Consciousness in Complex Systems

Research Square May 13, 2026 Nathan M. Thornhill preprint

Abstract Complex systems share a common failure mode: the breakdown of balance between integration and differentiation. This paper introduces the Dynamic Existence Threshold (DET), characterizing system state via integration (\((I)\)) and differentiation (\((D)\)) in a phase space where healthy function occupies a central balance zone. The DET predicts that critical events correspond to exits...

Safety and Efficacy of Psilocybin in the Management of Treatment-Resistant Depression: A Systematic Review

Research Square May 11, 2026 Chloë K Walters, Sarentha Chetty, Thankhoe A Rants’o et al. preprint

Abstract Background: Conventional pharmacotherapy for treatment-resistant depression (TRD) has been found to provide limited benefit in a subset of patients. Psilocybin‑assisted therapy has emerged as a promising modality due to its rapid‑acting antidepressant effects and favourable tolerability profile shown in early trials. Despite growing research interest in psilocybin‑assisted therapy the...

The Effect of Mindfulness-Based Stress Reduction Training on Fear of Childbirth and Psychological Well-being in Women Experiencing Premenstrual Syndrome: A Randomized Controlled Trial

Research Square May 11, 2026 Aysel Akbeniz, Esra Sabancı Baransel preprint

Abstract Aim: This study aimed to evaluate the effects of a Mindfulness-Based Stress Reduction (MBSR) program on premenstrual symptom severity, pre-pregnancy fear of childbirth, and psychological well-being in women experiencing Premenstrual Syndrome (PMS). Materials and Methods: This randomized controlled trial was conducted with 126 women experiencing PMS between June 2023 and November 2025...

APOE ε4-related structural vulnerability in mild cognitive impairment: a subsystem-based analysis of the default mode network.

Research Square May 11, 2026 Xiaoming Yang, Jian Lyu, Jubo Wang et al. preprint

Mild cognitive impairment (MCI) is a critical prodromal stage of progressive cognitive decline. As a core cognitive brain network, the default mode network (DMN) exhibits structural alterations in MCI that are closely associated with cognitive impairment. Apolipoprotein E ε4 (APOE ε4), the strongest genetic risk factor for pathological cognitive decline, has been shown to disrupt the structural...

DOI: 10.21203/rs.3.rs-9447482/v1 (opens in new tab) Full text (opens in new tab) Default mode network Apolipoprotein e ε4 Dorsomedial prefrontal cortex Mediation analysis +2

What is compassion connected to, and how does it change?: Gender and age differences in networks of compassion and self-compassion

Research Square April 30, 2026 Su-gyeong Lee, Jang-won Seo preprint

Abstract Compassion is an emotional state experienced in response to witnessing the suffering of others, accompanied by an internal motivation to help. When directed toward the self, it is referred to as self-compassion. Previous research suggests that compassion and self-compassion are closely related to mindfulness and empathy, contributing to reductions in anxiety and depression and to the...

Emotional Metacognition and University Perception: A Study Based on Enactive Emotional Cognition Theory

Research Square April 28, 2026 Jol Milton Chirinos, Alba Lucia Laurentz, Verónika Alarcón et al. preprint

Abstract Background Emotional metacognition, defined as the ability to monitor, interpret, and regulate emotional experiences, has become increasingly relevant in higher education research. Within the framework of enactive emotional cognition, emotions are understood as processes that emerge through continuous interaction between students and their academic environments. This study examined...

Methamphetamine-Fentanyl Polysubstance Administration Produces Social Deficits and Corticolimbic Stress-Reward Circuit Adaptations.

Research Square April 23, 2026 Leah M Salinsky, Joshua L Fox, Kyra C Diaz et al. preprint

Polysubstance use involving psychostimulants and opioids is increasingly prevalent and associated with elevated overdose risk, relapse vulnerability, and poor treatment outcomes. However, the neurobehavioral consequences of opioid-stimulant use remain poorly understood. We evaluated whether repeated methamphetamine-fentanyl polysubstance treatment disrupts social preference during withdrawal,...

Effect of Mindfulness Practice on Occupational Stress and Quality of Work Life among Secondary School Teachers: A Pilot Study

Research Square April 16, 2026 preprint

Abstract The study aimed to examine the effect of mindfulness practice on occupational stress and quality of work life among secondary school teachers in Bangalore city. A pre-test post-test control group design was used and participants were assigned to experimental (n = 15) and control group (n = 15). Participants completed the Occupational Stress Index (OSI) and Work-Related Quality of Life...

Effect of Mindfulness-Based Stress Reduction on Occupational Stress and Quality of Work Life among Secondary School Teachers

Research Square April 13, 2026 preprint

Abstract The study aimed to examine the effect of mindfulness practice on occupational stress and quality of work life among secondary school teachers in Bangalore city. A pre-test post-test control group design was used and participants were assigned to experimental (n = 15) and control group (n = 15). Participants completed the Occupational Stress Index (OSI) and Work-Related Quality of Life...

Extended difficulties after psychedelic experiences: Prevalence and associations in a global, multilingual sample.

Research Square April 8, 2026 Oliver Robinson, David Luke, Jules Evans et al. 1 citation preprint

As psychedelic use increases and integrates with mainstream medicine, understanding the prevalence and nature of postpsychedelic adverse outcomes is critical. We investigated extended difficulties after psychedelic use via the Global Psychedelic Survey (GPS) 2025, which is a multilingual online survey of people who have used psychedelics. Data on the prevalence, characteristics, and...

DOI: 10.21203/rs.3.rs-9304959/v1 (opens in new tab) Full text (opens in new tab) Global psychedelic survey Adverse reaction Challenging experiences Extended difficulties +1

When Being Different Becomes an Asset or a Burden: The Interaction Effect between Cultural Estrangement and Self-Esteem on Default Mode Network Activity

Research Square April 6, 2026 Morio Aki, Naoya Oishi, Sayaka Yoshimura et al. preprint

Abstract Increasing multiculturalism and globalization have increased the discrepancies between sociallyshared norms and personal values. This study investigated whether Cultural Estrangement (CE) and self-esteem (SE) interact to influence functional connectivity (FC) in the default mode network (DMN). In total, 170 healthy Japanese adults (18–70 years) were recruited, 70 of whom completed the...

Meditation Training Supports Attention and Performance During High Cognitive Load

Research Square April 1, 2026 Simay Selek, Russell W Chan, Funda Yildirim preprint

Abstract Meditation is increasingly recognized as a structured form of mental training that can induce plastic changes in neural systems supporting attention, cognitive control, and affect regulation. Although prior work links meditation to improved executive functioning, few studies have examined attentional performance under simultaneous cognitive conflict and emotional distraction. This...