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Psychiatry Research

ISSN 1872-7123

107 papers in the library · 1,400 citations · publishing 1984-2026

Papers

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Predictors of response and remission in patients with treatment-resistant depression: A post hoc pooled analysis of two acute trials of esketamine nasal spray

Psychiatry Research March 15, 2023 Ibrahim Turkoz, J. Craig Nelson, Samuel T. Wilkinson et al. 19 citations

This exploratory post hoc analysis of two pooled 4-week, phase 3, double-blind, placebo- and active-controlled studies that compared esketamine nasal spray plus a newly initiated oral antidepressant (ESK+AD; n = 310) with a newly initiated oral AD plus placebo nasal spray (AD+PBO; n = 208) in patients with treatment-resistant depression (TRD) examined baseline patient demographic and...

Real world effectiveness of repeated ketamine infusions for treatment-resistant depression with comorbid borderline personality disorder.

Psychiatry Research March 5, 2023 Kevork Danayan, Noah Chisamore, Nelson B Rodrigues et al. 36 citations

Borderline personality disorder (BPD) has high rates of comorbidity with mood disorders, including treatment-resistant depression (TRD). Comorbidity of BPD with depression is associated with poorer response to antidepressants. Intravenous ketamine is a novel treatment for TRD that has not been specifically evaluated in patients with comorbid BPD. In this retrospective analysis of data collected...

The future of hallucination research: Can hallucinogens and psychedelic drugs teach us anything?

Psychiatry Research 2023 Flavie Waters 1 citation

Hallucinations are one of the most interesting and least understood of all human experiences. This commentary addresses the ideas which most influenced my thinking in the past 20 years and what I believe to be the most currently promising area of enquiry. Interest in hallucinations reaches far back into antiquity and across cultures. The similarity of hallucinations in mental illness with the...

First episode psychosis with and without the use of cannabis and synthetic cannabinoids: Psychopathology, global functioning and suicidal ideation and antipsychotic effectiveness.

Psychiatry Research 2023 Ricci Valerio, Ceci Franca, Di Carlo Francesco et al.

BACKGROUND Natural Cannabis (NC) and Synthetic Cannabinoids (SCs) use can increase the risk of developing psychotic disorders and exacerbate their course. AIMS To examine the differences between psychoses not associated with cannabis use and those associated with NC and SCs use, evaluating psychotic symptoms, global functioning, dissociative symptoms and suicidal ideation. METHODS The sample of...

Brain function changes reveal rapid antidepressant effects of nitrous oxide for treatment-resistant depression:Evidence from task-state EEG.

Psychiatry Research 2023 Xuexiao Shao, Danfeng Yan, Wenwen Kong et al.

Nitrous oxide has rapid antidepressant effects in patients with treatment-resistant depression (TRD), but its underlying mechanisms of therapeutic actions are not well understood. Moreover, most of the current studies lack objective biological indicators to evaluate the changes of nitrous oxide-induced brain function for TRD. Therefore, this study assessed the effect of nitrous oxide on brain...

Efficacy and safety of nitrous oxide for patients with treatment-resistant depression, a randomized controlled trial.

Psychiatry Research November 1, 2022 Danfeng Yan, Bangshan Liu, Xiyu Wei et al.

Nitrous oxide (N2O), an N-methyl-D-aspartate glutamate receptor antagonist, has demonstrated a rapid-onset antidepressant effect for treatment-resistant depression (TRD) preliminarily in the United States. This study aimed to test the efficacy and safety of N2O for TRD patients in China. In this double-blinded, placebo-controlled trial, 44 patients with TRD were randomized to receive a one-hour...

Magic Mushrooms – an exploratory look at how mental health professionals feel and think about Psilocybin

Psychiatry Research July 16, 2022 Thomas D Meyer, Priel Meir, Claudia Lex et al. 23 citations

Psilocybin recently received breakthrough status by the FDA for its use in treatment of depression. We therefore investigated mental health professionals' (MHPs) opinions on Psilocybin (n = 155). Overall, attitudes were neutral but self-rated knowledge of Psilocybin was low. The term used in the survey, 'Psilocybin' or 'Magic Mushrooms', did not significantly affect their responses. Some...

The Effects of Psilocybin in Adults with Major Depressive Disorder and the General Population: Findings from Neuroimaging Studies

Psychiatry Research April 25, 2022 Hartej Gill, Parnian Puramat, Pankti Patel et al. 16 citations

The use of psilocybin as treatment for major depressive disorder (MDD) has been examined as a promising alternative to traditional first-line options. We reviewed existing literature to provide a synthesis of the extant neuroimaging observations with psilocybin, and to identify putative therapeutic targets for target engagement studies with psilocybin, and potentially other psychedelics. We...

Emphasizing mindfulness training in acceptance relieves anxiety and depression during pregnancy.

Psychiatry Research April 1, 2022 Mengye Yang, Xiaoli Zhou, Cuiwei Ye et al.

Mindfulness intervention, which trains participants to monitor momentary experiences with an accepting attitude, is effective for reducing maternal anxiety and depression. Monitoring and acceptance are two central components of mindfulness training. The aim of the study is to clarify whether adding acceptance component to monitoring training can help improve the mental health of pregnant people...

Frequency analysis of symptomatic worsening following ketamine infusions for treatment resistant depression in a real-world sample: Results from the canadian rapid treatment center of excellence.

Psychiatry Research 2022 Joshua D. Di Vincenzo, Orly Lipsitz, Nelson B Rodrigues et al. 11 citations

Antidepressants are associated with symptomatic worsening in a subgroup of patients. Replicated evidence has demonstrated rapid and robust antidepressant effects with intravenous (IV) ketamine in treatment resistant depression (TRD); however, the risk of ketamine worsening depressive symptoms in a subgroup of patients remains unknown. Herein we report a retrospective analysis on the rates of...

Ketamine for psychotic depression: An overview of the glutamatergic system and ketamine's mechanisms associated with antidepressant and psychotomimetic effects.

Psychiatry Research October 1, 2021 Tuyen T. Le, Joshua D. Di Vincenzo, Kayla M Teopiz et al. 26 citations

Approximately 0.35-1% of the general population is afflicted with psychotic depression at some time in their life. Psychotic depression is a subtype of major depressive disorder characterized by mood congruent hallucinations and/or delusions. Patients with psychotic depression often represent the most severe cases, with high relapse and mortality rate. Although treatment guidelines recommend a...

Effects of an eight-week, online mindfulness program on anxiety and depression in university students during COVID-19: A randomized controlled trial

Psychiatry Research September 23, 2021 Otto Simonsson, Olivier Bazin, S. Fisher et al.

The COVID-19 pandemic has had adverse mental health effects for many groups in British society, especially young adults and university students. The present study reports secondary outcomes (i.e., symptoms of anxiety and depression) from a randomized waitlist controlled trial, with a one-month post-intervention follow-up, on the effects of a guided, eight-week mindfulness program delivered...

Mindfulness-based interventions for social anxiety disorder: A systematic review and meta-analysis.

Psychiatry Research April 20, 2021 Xiaoyu Liu, Peng Yi, Lijun Ma et al.

Various psychiatric disorders are treated with mindfulness-based interventions (MBIs), although the efficacy of MBIs in patients with social anxiety disorder (SAD) is unclear. In this meta-analysis, we investigated the efficacy of MBIs on SAD symptoms. Systematic searches were performed in various databases, and 11 eligible randomized controlled trials (RCTs) and 5 single-arm trials were...

The relationship between cannabis use and cognition in people diagnosed with first-episode psychosis.

Psychiatry Research August 23, 2020 Chloé de Vos, K. Leopold, Elisabeth S. Blanke et al.

Cannabis use is highly prevalent among young people diagnosed with first-episode psychosis (FEP), however, its impact on cognition is still unclear. The aim of the present study was to examine the association of cannabis use with cognition in people diagnosed with FEP. We extended previous research findings by operationalising the comorbid cannabis use, considering recency of cannabis use and...

On the phenomenology of auditory verbal hallucinations in affective and non-affective psychosis.

Psychiatry Research June 4, 2020 W. L. Toh, N. Thomas, Y. Hollander et al. 22 citations

Phenomenological comparisons of auditory verbal hallucinations (AVHs) in affective versus non-affective psychosis have not been adequately documented. The current study aimed to: a) comprehensively describe AVH phenomenology by diagnosis and mood state, b) investigate significant predictors of voice-related distress and functional impairment, and c) conduct qualitative thematic analysis of...

Mindfulness-based cognitive therapy for bipolar disorder: A systematic review and meta-analysis.

Psychiatry Research May 25, 2020 Rongrong Xuan, Xiaoming Li, Yuxi Qiao et al.

BACKGROUND Mindfulness-based cognitive therapy (MBCT) is an increasingly popular treatment for major depression and anxiety disorder, but has shown inconsistent efficacy for bipolar disorder (BD). Therefore, we conducted a meta-analysis to assess the general efficacy of MBCT for BD. METHODS Ten studies were identified that fulfilled the current inclusion criteria, including three controlled and...

Effects of mindfulness-based stress reduction on anxiety symptoms in young people: A systematic review and meta-analysis.

Psychiatry Research May 7, 2020 Xiang Zhou, Jieyu Guo, Guangli Lu et al.

In this study, we evaluated the efficacy of mindfulness-based stress reduction (MBSR) for young people with anxiety symptoms . We used many databases, including PubMed, PsycINFO, Web of Science, EMBASE, CINAHL and Cochrane Library (from inception to May 2019). We included randomized controlled trials (RCTs) comparing MBSR with various control conditions, including didactic lecture course,...

Ketamine plus propofol-electroconvulsive therapy (ECT) transiently improves the antidepressant effects and the associated brain functional alterations in patients with propofol-ECT-resistant depression.

Psychiatry Research March 6, 2020 Jianjing Zhang, H. Tian, Jie Li et al. 13 citations

New methods for using ketamine in patients with propofol-electroconvulsive therapy-resistant depression (ECT-RD) are needed in the clinic. This study aimed to investigate the therapeutic efficacy of ketamine plus ECT in ECT-RD patients, along with the treatment-induced brain alterations. A total of 28 ECT-RD patients were intravenously injected with ketamine six times and treated with...

Real-time fMRI neurofeedback reduces auditory hallucinations and modulates resting state connectivity of involved brain regions: Part 2: Default mode network -preliminary evidence

Psychiatry Research January 14, 2020 Clemens C C Bauer, Kana Okano, Satrajit Ghosh et al. 87 citations

Auditory hallucinations (AHs) are one of the most distressing symptoms of schizophrenia (SZ) and are often resistant to medication. Imaging studies of individuals with SZ show hyperactivation of the default mode network (DMN) and the superior temporal gyrus (STG). Studies in SZ show DMN hyperconnectivity and reduced anticorrelation between DMN and the central executive network (CEN). DMN...

The experimental effects of psilocybin on symptoms of anxiety and depression: A meta-analysis

Psychiatry Research January 2, 2020 Simon B. Goldberg, Brian T. Pace, Christopher R. Nicholas et al. 234 citations

The current meta-analysis examined the effects of psilocybin in combination with behavioral interventions on anxiety and depression in samples with elevated symptoms. Across four studies (one uncontrolled; three randomized, placebo-controlled; N = 117), within-group pre-post and pre-follow-up effects on anxiety and depression were large (Hedges' gs=1.16 to 1.47) and statistically significant....

Intermittent administration of low dose ketamine can shorten the course of electroconvulsive therapy for depression and reduce complications: A randomized controlled trial.

Psychiatry Research November 1, 2019 Jun Dong, S. Min, H. Qiu et al. 26 citations

This study aimed to investigate the efficacy and safety of intermittent low-dose ketamine on improving the efficacy of ECT. Patients diagnosed with Major Depressive Disorder (MDD) (n = 134) were randomized into 3 groups: routine ECT group (group E, n = 45); repeated ketamine-assisted ECT group (group RK, n = 43), and intermittent ketamine-assisted ECT group (group IK, n = 46). Patients in group...

An epidemiological study on the prevalence of hallucinations in a general-population sample: Effects of age and sensory modality.

Psychiatry Research February 1, 2019 Frank Larøi, Josef J Bless, Julien Laloyaux et al.

Epidemiological studies have repeatedly shown that a significant minority of the general population have experienced hallucinations, however, a potential effect of age on the prevalence of hallucinations in the general population has never been previously examined in a specific study. The aim of the present study was thus to examine the effects of age and sensory modality on hallucination...

Psychological variables implied in the therapeutic effect of ayahuasca: A contextual approach

Psychiatry Research April 4, 2018 Alba Franquesa, Alberto Sainz-Cort, Sam Gandy et al. 58 citations

Ayahuasca is a psychedelic decoction originating from Amazonia. The ayahuasca-induced introspective experience has been shown to have potential benefits in the treatment of several pathologies, to protect mental health and to improve neuropsychological functions and creativity, and boost mindfulness. The underlying psychological processes related to the use of ayahuasca in a psychotherapeutic...

The Effect of Mindfulness Meditation Training on Biological Acute Stress Responses in Generalized Anxiety Disorder

Psychiatry Research January 25, 2017 Elizabeth A Hoge, Eric Bui, Sophie A. Palitz et al.

Mindfulness-Based interventions have increased in popularity in psychiatry, but the impact of these treatments on disorder-relevant biomarkers would greatly enhance efficacy and mechanistic evidence. If Generalized Anxiety Disorder (GAD) is successfully treated, relevant biomarkers should change, supporting the impact of treatment and suggesting improved resilience to stress. Seventy adults...

Dream content and intrusive thoughts in Obsessive-Compulsive Disorder.

Psychiatry Research October 30, 2016 Simone Cavallotti, Cecilia Casetta, Valentina Fanti et al.

Although central to any exhaustive theory of human subjectivity, the relationship between dream and waking consciousness remains uncertain. Some findings suggest that dream consciousness can be influenced by severe disorders of thought content. The suppression of unwanted thoughts has been shown to influence dream content in healthy individuals. In order to better define this phenomenon, we...