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PeerJ

ISSN 2167-8359

22 papers in the library · 234 citations · publishing 2015-2026

Papers

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Improving exercise motivation and physical fitness in college students through a long-term mindfulness-enhanced Tai Chi Chuan program: a randomized controlled trial

PeerJ January 9, 2026 Ping Qu, Xiaoqing Zhu, Ting Zhu et al. 2 citations

Background: While Tai Chi Chuan (TCC) is widely recognized for its physical and mental health benefits, its mindful components are often overlooked in traditional training. Mindfulness-enhanced Tai Chi Chuan (MTCC) has been proposed to address this limitation, yet little research has explored its long-term impact on exercise motivation and physical fitness. This study extends previous findings...

Education about pain and experience with cognitive-based interventions do not reduce healthcare professionals' chronic pain.

PeerJ 2025 Asaf Weisman, Tomer Yona, Youssef Masharawi 4 citations

Cognitive-based interventions like pain neuroscience education (PNE), cognitive behavioral therapy (CBT), acceptance commitment therapy (ACT), and mindfulness meditation are popular for managing chronic pain. Despite their widespread adoption, evidence for their efficacy remains contradictory. Healthcare professionals (HCPs) represent a unique population to evaluate these approaches, as they...

DOI: 10.7717/peerj.19448 (opens in new tab) Full text (opens in new tab) Mindfulness Acceptance commitment therapy Chronic pain Cognitive behavioral therapy +5

Integrating mindfulness and physical activity: a meta-analysis of mindful movement interventions for symptoms of anxiety and depression among university students.

PeerJ 2025 Xinjian Xu, Borhannudin Bin Abdullah, Shamsulariffin Bin Samsudin et al. 3 citations

University students are increasingly vulnerable to mental health problems, such as anxiety and depression, which have been associated with academic stress, job market uncertainty, and lifestyle-related factors such as physical inactivity and poor sleep habits. Mindful movement, defined as structured programs integrating mindfulness practice with physical movement, offers a holistic approach to...

Effects of a combined nature-based and audio-based virtual mindfulness intervention on stress and wellbeing of COVID-19 healthcare workers: a randomized controlled trial.

PeerJ 2025 Polycarpe Bagereka, Rezvan Ameli, Ninet Sinaii et al.

The global COVID-19 pandemic and its subsequent transition to an endemic phase has highly increased psychosocial distress among healthcare workers. This chronic stress may culminate into burnout, which has been associated with impaired patient care and increased medical errors. Exposure to nature-based programs have been shown to reduce levels of perceived stress and promote well-being....

DOI: 10.7717/peerj.19109 (opens in new tab) Full text (opens in new tab) Audio-based intervention Covid-19 Healthcare workers Nature-based therapy +6

Effect of oral tryptamines on the gut microbiome of rats—a preliminary study

PeerJ June 3, 2024 Mengyang Xu, Haifei Shi, Andor J. Kiss et al. 5 citations

Background Psilocybin and related tryptamines have come into the spotlight in recent years as potential therapeutics for depression. Research on the mechanisms of these effects has historically focused on the direct effects of these drugs on neural processes. However, in addition to such neural effects, alterations in peripheral physiology may also contribute to their therapeutic effects. In...

Exploring the mediating roles of physical literacy and mindfulness on psychological distress and life satisfaction among college students.

PeerJ 2024 Wencong Kan, Fan Huang, Menglin Xu et al. 12 citations

Psychological distress has been a growing challenge to healthy living worldwide. Special attention has been concentrated on examining the cost of psychological distress on the life satisfaction of college students who are vulnerable groups coping with the challenge. The purpose of this study is to explore the roles of physical literacy (PL) and mindfulness in mediating the impact of...

DOI: 10.7717/peerj.17741 (opens in new tab) Full text (opens in new tab) Mindfulness Life satisfaction Physical literacy Psychological distress +1

Development and validation of the Exteroceptive Body Awareness (EBA-q) questionnaire

PeerJ August 24, 2023 Alisha Vabba, Giuseppina Porciello, Maria Serena Panasiti et al. 8 citations

The conscious processing of body signals influences higher-order psychological and cognitive functions, including self-awareness. Dysfunctions in the processing of these signals has been connected to neurological and psychiatric disorders characterized by altered states of self-consciousness. Studies indicate that perceiving the body through interoceptive signals ( e.g. , from internal organs...

No effect of attentional modulation by spatial cueing in a masked numerical priming paradigm using continuous flash suppression (CFS).

PeerJ 2023 Juliane Handschack, Marcus Rothkirch, Philipp Sterzer et al.

One notion emerging from studies on unconscious visual processing is that different "blinding techniques" seem to suppress the conscious perception of stimuli at different levels of the neurocognitive architecture. However, even when only the results from a single suppression method are compared, the picture of the scope and limits of unconscious visual processing remains strikingly...

DOI: 10.7717/peerj.14607 (opens in new tab) Full text (opens in new tab) Consciousness Continuous flash suppression Interocular suppression Masked priming +2

The complete organellar genomes of the entheogenic plant Psychotria viridis (Rubiaceae), a main component of the ayahuasca brew.

PeerJ 2022 Alessandro M Varani, Saura R Silva, Simone Lopes et al. 7 citations

Psychotria viridis (Rubioideae: Rubiaceae), popularly known as chacrona, is commonly found as a shrub in the Amazon region and is well-known to produce psychoactive compounds, such as the N,N-dimethyltryptamine (DMT). Together with the liana Banisteropsis caapi, P. viridis is one of the main components of the Amerindian traditional, entheogenic beverage known as ayahuasca. In this work, we...

DOI: 10.7717/peerj.14114 (opens in new tab) Full text (opens in new tab) Chacrona Chloroplast Comparative genomics Entheogen +8

Embodied time and the out-of-body experience of the self.

PeerJ 2020 Sylvie Droit-Volet, Sophie Monceau, Michael Dambrun et al. 17 citations

Using an out-of-body paradigm, the present study provided further empirical evidence for the theory of embodied time by suggesting that the body-self plays a key role in time judgments. Looking through virtual reality glasses, the participants saw the arm of a mannequin instead of their own arm. They had to judge the duration of the interval between two (perceived) touches applied to the...

DOI: 10.7717/peerj.8565 (opens in new tab) Full text (opens in new tab) Consciousness Embodiment Emotion Out-of-body +3

Reliability and validity of an equanimity questionnaire: the two-factor equanimity scale (EQUA-S)

PeerJ July 18, 2019 Catherine Juneau, Nicolas Pellerin, Elliott Trives et al.

Background Many studies have revealed the positive impact of mindfulness training on mental health and proposed equanimity as a general outcome in contemplative research. Despite recent interest, relatively few studies have empirically examined equanimity and measurement instruments are still lacking. The main goal of this study was to develop an Equanimity Scale (the EQUA-S) in a Western...

Prevalence of near-death experiences in people with and without REM sleep intrusion.

PeerJ 2019 Daniel Kondziella, Jens P Dreier, Markus Harboe Olsen 34 citations

The origin and prevalence of near-death experiences are unknown. A recent study suggested a link with REM sleep intrusion but was criticized for its selection of control participants. We therefore assessed the association of REM intrusion and near-death experiences with different methods. Using a crowd-sourcing platform, we recruited 1,034 lay people from 35 countries to investigate the...

DOI: 10.7717/peerj.7585 (opens in new tab) Full text (opens in new tab) Brain injury Cardiac arrest Coma Disorders of consciousness +4

Migraine aura, a predictor of near-death experiences in a crowdsourced study.

PeerJ 2019 Daniel Kondziella, Markus Harboe Olsen, Coline L. Lemale et al. 17 citations

Near-death experiences (NDE) occur with imminent death and in situations of stress and danger but are poorly understood. Evidence suggests that NDE are associated with rapid eye movement (REM) sleep intrusion, a feature of narcolepsy. Previous studies further found REM abnormalities and an increased frequency of dream-enacting behavior in migraine patients, as well as an association between...

Mindfulness and autonomous sensory meridian response (ASMR).

PeerJ August 7, 2018 Beverley K Fredborg, James M Clark, Stephen D Smith

Background: Autonomous sensory meridian response (ASMR) is a perceptual phenomenon in which specific audiovisual stimuli frequently elicit tingling sensations on the scalp and neck. These stimuli ("ASMR triggers") are typically social in nature (e.g., watching someone brush their hair, hearing whispering,) and often elicit a calm and positive emotional state that may last up to several minutes....

Serotonin 5-HT1A receptor binding and self-transcendence in healthy control subjects-a replication study using Bayesian hypothesis testing.

PeerJ 2018 Gina Griffioen, Granville J. Matheson, Simon Cervenka et al.

A putative relationship between markers for the serotonin system and the personality scale self-transcendence (ST) and its subscale spiritual acceptance (SA) has been demonstrated in a previous PET study of 5-HT1A receptor binding in healthy control subjects. The results could however not be replicated in a subsequent PET study at an independent centre. In this study, we performed a replication...

DOI: 10.7717/peerj.5790 (opens in new tab) Full text (opens in new tab) Serotonin 5-ht1a Bayes theorem Positron emission tomography +3

Enhanced conflict monitoring via a short-duration, video-assisted deep breathing in healthy young adults: an event-related potential approach through the Go/NoGo paradigm.

PeerJ October 6, 2017 Kok Suen Cheng, Yun Fah Chang, Ray P S Han et al.

Objectives: Practitioners of mindfulness are reported to have greater cognitive control especially in conflict monitoring, response inhibition and sustained attention. However, due to the various existing methods in each mindfulness practices and also, the high commitment factor, a barrier still exists for an individual to pick up the practices. Therefore, the effect of short duration deep...

DOI: 10.7717/peerj.3857 (opens in new tab) Full text (opens in new tab) Event-related potential Conflict monitoring Go/nogo task Deep breathing +2

The ethnobotany of psychoactive plant use: a phylogenetic perspective

PeerJ January 19, 2017 Nashmiah Aid Alrashedy, Jeanmaire Molina 39 citations

Psychoactive plants contain chemicals that presumably evolved as allelochemicals but target certain neuronal receptors when consumed by humans, altering perception, emotion and cognition. These plants have been used since ancient times as medicines and in the context of religious rituals for their various psychoactive effects (e.g., as hallucinogens, stimulants, sedatives). The ubiquity of...

DOI: 10.7717/peerj.2546 (opens in new tab) Full text (opens in new tab) Ethnopharmacology Drug discovery Traditional medicine Evolutionary ethnobotany +2

Sensory determinants of the autonomous sensory meridian response (ASMR): understanding the triggers.

PeerJ 2017 Emma L Barratt, Charles J. Spence, Nick J Davis

The autonomous sensory meridian response (ASMR) is an atypical sensory phenomenon involving electrostatic-like tingling sensations in response to certain sensory, primarily audio-visual, stimuli. The current study used an online questionnaire, completed by 130 people who self-reported experiencing ASMR. We aimed to extend preliminary investigations into the experience, and establish key...

Harmine stimulates proliferation of human neural progenitors

PeerJ December 6, 2016 Vanja Dakic, Renata de Moraes Maciel, Hannah Drummond et al. 86 citations

Harmine is the β -carboline alkaloid with the highest concentration in the psychotropic plant decoction Ayahuasca. In rodents, classical antidepressants reverse the symptoms of depression by stimulating neuronal proliferation. It has been shown that Ayahuasca presents antidepressant effects in patients with depressive disorder. In the present study, we investigated the effects of harmine in...

DOI: 10.7717/peerj.2727 (opens in new tab) Neurogenesis Harmine Cell growth Pargyline +6

Ketamine modulates subgenual cingulate connectivity with the memory-related neural circuit-a mechanism of relevance to resistant depression?

PeerJ 2016 Jing J Wong, Owen O'Daly, Mitul A. Mehta et al.

Background. Ketamine has been reported to have efficacy as an antidepressant in several studies of treatment-resistant depression. In this study, we investigate whether an acute administration of ketamine leads to reductions in the functional connectivity of subgenual anterior cingulate cortex (sgACC) with other brain regions. Methods. Thirteen right-handed healthy male subjects underwent a 15...

Personality and intelligence: persistence, not self-directedness, cooperativeness or self-transcendence, is related to twins’ cognitive abilities

PeerJ August 20, 2015 Fariba Mousavi, S. Rózsa, T. Nilsson et al.

Background. A person-centered approach focusing on the interaction of an individual’s temperament-character-life events is essential in the path of individuals’ well-being. In this context, three character traits, Self-directedness (e.g., self-acceptance, self-control, goal-directed behavior), Cooperativeness (e.g., social affiliation, social tolerance, empathy and helpfulness) and...

Autonomous Sensory Meridian Response (ASMR): a flow-like mental state.

PeerJ 2015 Emma L Barratt, Nick J Davis

Autonomous Sensory Meridian Response (ASMR) is a previously unstudied sensory phenomenon, in which individuals experience a tingling, static-like sensation across the scalp, back of the neck and at times further areas in response to specific triggering audio and visual stimuli. This sensation is widely reported to be accompanied by feelings of relaxation and well-being. The current study...