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1.
Psychiatry Res ; 340: 116124, 2024 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-39173348

RESUMO

To assess the effect of Long-acting injectable (LAI) antipsychotics in acutely ill patients, we systematically searched major databases for randomized controlled trials (RCTs) comparing LAIs with other LAIs, oral antipsychotics, or placebo in acutely symptomatic adults with schizophrenia-spectrum disorders. Data were analyzed with a random-effects network meta-analysis. Co-primary outcomes were efficacy (mean change in psychopathology rating scales) and acceptability (all-cause discontinuations) at study endpoint. Of 25 RCTs, 19 studies tested second-generation LAIs (SGA-LAIs) and six first-generation LAIs (FGA-LAIs). Due to a disconnected network, FGA-LAIs were analyzed separately, with poor data quality. The SGA-LAIs network included 8,418 individuals (males=63%, mean age=39.3 years). All SGA-LAIs outperformed placebo in reducing acute symptoms at study endpoint (median follow-up=13 weeks). They were more acceptable than placebo with the only exception of olanzapine, for which no differences with placebo emerged. Additionally, we distinguished between different LAI formulations of the same antipsychotic to explore potential pharmacokinetic differences. Most formulations outperformed placebo in the very short-term (2 weeks or less), regardless of the need for initial oral supplementation. SGA-LAIs are evidence-based treatments in acutely ill individuals with schizophrenia-spectrum disorders. Findings support the use of SGA-LAIs to manage psychopathology and improve adherence right from the acute phases of illness.

2.
Curr Biol ; 2024 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-39173625

RESUMO

Hallucinations are vivid and transient experiences of objects, such as images or sounds, that occur in the absence of a corresponding stimulus.1,2,3,4,5,6,7,8,9 To understand the neurocomputational mechanisms of hallucinations, cognitive neuroscience has focused on experiments that induce false alarms (FAs) in healthy participants,1,2,3,4,5,9 psychosis-prone individuals,1,3,4 and patients diagnosed with schizophrenia.5 FAs occur when participants make decisions about difficult-to-detect stimuli and indicate the presence of a signal that was, in fact, not presented. Since FAs are, at heart, reports, they must meet two criteria to serve as an experimental proxy for hallucinations: first, FAs should reflect perceptual states that are characterized by specific contents10,11,12 (criterion 1). Second, FAs should occur on a timescale compatible with the temporal dynamics of hallucinations13,14 (criterion 2). In this work, we combined a classification image approach15 with hidden Markov models16 to show that FAs can match the perceptual and temporal characteristics of hallucinations. We asked healthy human participants to discriminate visual stimuli from noise and found that FAs were more likely to occur during an internal mode of sensory processing, a minute-long state of the brain during which perception is strongly biased toward previous experiences17 (serial dependency). Our results suggest that hallucinations are driven by dynamic predictive templates that transform noise into transient, coherent, and meaningful perceptual experiences.

3.
Schizophr Bull Open ; 5(1): sgae016, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-39144106

RESUMO

While continued cannabis use and misuse in individuals with schizophrenia is associated with a variety of negative outcomes, individuals with a history of use tend to show higher cognitive performance compared to non-users. While this is replicated in the literature, few studies have used task-based functional magnetic resonance imaging (fMRI) to evaluate whether the brain networks underpinning these cognitive features are similarly impacted. Forty-eight first-episode individuals with schizophrenia (FES) with a history of cannabis use (FES + CAN), 28 FES individuals with no history of cannabis use (FES-CAN), and 59 controls (CON) performed the AX-Continuous Performance Task during fMRI. FES+CAN showed higher cognitive control performance (d'-context) compared to FES-CAN (P < .05, ηp 2 = 0.053), and both FES+CAN (P < .05, ηp 2 = 0.049) and FES-CAN (P < .001, ηp 2 = 0.216) showed lower performance compared to CON. FES+CAN (P < .05, ηp 2 = 0.055) and CON (P < 0.05, ηp 2 = 0.058) showed higher dorsolateral prefrontal cortex (DLPFC) activation during the task compared to FES-CAN, while FES+CAN and CON were not significantly different. Within the FES+CAN group, the younger age of initiation of cannabis use was associated with lower IQ and lower global functioning. More frequent use was also associated with higher reality distortion symptoms at the time of the scan. These data are consistent with previous literature suggesting that individuals with schizophrenia and a history of cannabis use have higher cognitive control performance. For the first time, we also reveal that FES+CAN have higher DLPFC brain activity during cognitive control compared to FES-CAN. Several possible explanations for these findings are discussed.

4.
Schizophr Bull Open ; 5(1): sgae009, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-39144113

RESUMO

Background and Hypothesis: The Accelerating Medicines Partnership Schizophrenia (AMP SCZ) funds a longitudinal study of 43 research sites across 5 continents to develop tools to stratify developmental trajectories of youth at clinical high risk for psychosis (CHR) and identify homogenous targets for future clinical trials. However, there are no sites in Africa, leaving a critical gap in our knowledge of clinical and biological outcomes among CHR individuals. Study Design: We describe the development of the Kenya Psychosis-Risk Outcomes Study (KePROS), a 5-year NIH-funded project in Kenya designed to harmonize with AMP SCZ. The study will recruit over 100 CHR and 50 healthy participants and conduct multiple clinical and biomarker assessments over 2 years. Capacity building is a key component of the study, including the construction of an electroencephalography (EEG) laboratory and the upgrading of a local 3 T magnetic resonance imaging (MRI) machine. We detail community recruitment, study methodologies and protocols, and unique challenges with this pioneering research in Africa. Study Results: This paper is descriptive only. Planned future analyses will investigate possible predictors of clinical outcomes and will be compared to results from other global populations. Conclusions: KePROS will provide the research community with a rich longitudinal clinical and biomarker dataset from an African country in the developing Global South, which can be used alongside AMP SCZ data to delineate CHR outcome groups for future treatment development. Training in mental health assessment and investment in cutting-edge biomarker assessment and other technologies is needed to facilitate the inclusion of African countries in large-scale research consortia.

5.
Schizophr Bull Open ; 5(1): sgae010, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-39144115

RESUMO

Background and Hypothesis: Schizophrenia is associated with white matter disruption and topological reorganization of cortical connectivity but the trajectory of these changes, from the first psychotic episode to established illness, is poorly understood. Current studies in first-episode psychosis (FEP) patients using diffusion magnetic resonance imaging (dMRI) suggest such disruption may be detectable at the onset of psychosis, but specific results vary widely, and few reports have contextualized their findings with direct comparison to young adults with established illness. Study Design: Diffusion and T1-weighted 7T MR scans were obtained from N = 112 individuals (58 with untreated FEP, 17 with established schizophrenia, 37 healthy controls) recruited from London, Ontario. Voxel- and network-based analyses were used to detect changes in diffusion microstructural parameters. Graph theory metrics were used to probe changes in the cortical network hierarchy and to assess the vulnerability of hub regions to disruption. The analysis was replicated with N = 111 (57 patients, 54 controls) from the Human Connectome Project-Early Psychosis (HCP-EP) dataset. Study Results: Widespread microstructural changes were found in people with established illness, but changes in FEP patients were minimal. Unlike the established illness group, no appreciable topological changes in the cortical network were observed in FEP patients. These results were replicated in the early psychosis patients of the HCP-EP datasets, which were indistinguishable from controls in most metrics. Conclusions: The white matter structural changes observed in established schizophrenia are not a prominent feature in the early stages of this illness.

6.
Schizophr Bull Open ; 5(1): sgae003, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-39144118

RESUMO

Background and Hypothesis: When occurring in adolescence, psychotic experiences (PE), subclinical psychotic symptoms, can be an early marker of mental illnesses. Studies with high-risk populations for psychosis show that anxiety symptoms often precede the onset of psychosis. Although anxiety symptoms are frequently experienced across the continuum of psychosis, no previous study has analyzed this association using a cross-lagged panel model (CLPM) longitudinally to identify if anxiety can be a predictor of PE over time or vice versa. The aim of the current study was to investigate whether one symptom domain predicts the other over time. Study Design: 2194 children from the Brazilian High-Risk Cohort (BHRC) were evaluated at baseline (T 0), and 76.5% completed a 3-year follow-up (T 1) interview. Childhood anxiety symptoms and PE were assessed using a standardized self-report questionnaire at both time points. Cross-lagged panel models evaluated time-lagged associations between PE and anxiety longitudinally. Study Results: Higher levels of anxiety in childhood predicted an increase in PE levels in adolescence. The cross-lagged effect of anxiety scores at T 0 on PE scores at T 1 was significant (ß = .03, SE = 0.01, P ≤ .001) and PE in childhood did not increase levels of anxiety in adolescence, when controlling for sociodemographic and clinical characteristics. Conclusions: Our findings reinforce that anxiety may represent an early marker of psychosis proneness, not a consequence of already presenting PE, which can help to develop better screening approaches. Therefore, future studies should focus on identifying biological or other clinical markers to increase prediction accuracy.

7.
Front Netw Physiol ; 4: 1426743, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39175607

RESUMO

The network nature of focal epilepsy is exemplified by mesial temporal lobe epilepsy (mTLE), characterized by focal seizures originating from the mesial temporal neocortex, amygdala, and hippocampus. The mTLE network hypothesis is evident in seizure semiology and interictal comorbidities, both reflecting limbic network dysfunction. The network generating seizures also supports essential physiological functions, including memory, emotion, mood, and sleep. Pathology in the mTLE network often manifests as interictal behavioral disturbances and seizures. The limbic circuit is a vital network, and here we review one of the most common focal epilepsies and its comorbidities. We describe two people with drug resistant mTLE implanted with an investigational device enabling continuous hippocampal local field potential sensing and anterior nucleus of thalamus deep brain stimulation (ANT-DBS) who experienced reversible psychosis during continuous high-frequency stimulation. The mechanism(s) of psychosis remain poorly understood and here we speculate that the anti-epileptic effect of high frequency ANT-DBS may provide insights into the physiology of primary disorders associated with psychosis.

8.
Cureus ; 16(7): e64856, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39156266

RESUMO

We present an unusual case of antiphospholipid syndrome (APS) in a 31-year-old female patient exhibiting neuropsychiatric manifestations, followed by a subsequent thromboembolic stroke. APS is characterized by antiphospholipid antibodies leading to a prothrombotic state and an increased risk of thrombotic events. While the neurological involvement in APS typically presents with thrombotic events, antiphospholipid antibodies may also directly interact with neural tissue, causing immediate pathogenic effects that disrupt normal function. Neuropsychiatric manifestations in APS are rare but have been documented previously, including cases of psychosis and hallucinations. The timely recognition of APS in patients with neuropsychiatric symptoms is crucial for appropriate management and the prevention of further complications. The reported patient displayed aggressive, bizarre, and erratic behavior upon admission to the psychiatric unit, followed by the development of right-sided facial droop and weakness. Imaging studies revealed stenosis and partial occlusion of the left middle cerebral artery (MCA), and a repeat scan showed a known left MCA territory infarct with increasing hypodensity in specific brain regions. Notably, the patient exhibited multiple purpuric ecchymoses on bilateral upper extremities, raising suspicion of a hypercoagulable state. Laboratory investigations detected elevated levels of anticardiolipin IgG and beta-2 glycoprotein 1 IgG, along with a positive antinuclear antibody. The presence of a patent foramen ovale was also confirmed through echocardiography. This case emphasizes the importance of early APS recognition in patients with neuropsychiatric symptoms, facilitating appropriate intervention and improved outcomes. Further research is warranted to elucidate the underlying pathophysiological mechanisms connecting APS to neuropsychiatric manifestations, enabling enhanced understanding and refined management of this intricate condition.

9.
Front Psychol ; 15: 1387678, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39156817

RESUMO

Introduction: Deficits in social functioning and decision-making are well-documented in schizophrenia, but their relationship with positive symptoms and social conflicts is poorly understood. We created a new paradigm based on the Dictator Game (DG) to explore differences in social decision-making between individuals experiencing high levels of psychotic-like experiences (PLEs), particularly hallucinations and delusions, and controls with less PLEs. Methods: A large community sample (N = 1,161) completed a DG in an online study whereby extreme groups were built based on the positive subscale of the CAPE. Results: Overall, participants experiencing PLEs did not act less prosocial than controls but showed a somewhat aberrant decision-making behavior, particularly a pattern of behaving more prosocial in fair situations and generally favoring punishment over compensation relative to controls. Mediation analyses suggest that measures of empathy and Machiavellism have predictive power for prosocial behavior beyond group status. Discussion: The present study raises the possibility that individuals with high levels of PLEs may be less able to adapt their behavior to the situation at hand than controls. These irregularities might be due to deficits in social cognition which may elicit conflict, thus compromising social functioning and possibly contributing to the formation of positive symptoms.

10.
BMC Psychiatry ; 24(1): 563, 2024 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-39160490

RESUMO

BACKGROUND: Methamphetamine use and related direct and indirect problems are increasing all over the world. The coexistence of lifetime marijuana use (LMU) and methamphetamine use disorder (MUD) may also be accompanied by psychotic symptoms (MAP). Methamphetamine and marijuana use are known to pose risks for cardiovascular diseases (CVDs). However, ten-year CVD risk and inflammation markers of LMU-MUD (non-psychosis group) and LMU-MAP (psychosis group) subjects and the relationship of various sociodemographic and clinical variables with these markers have not yet been examined. METHODS: Thirty-two male subjects were included in non-psychosis group and 72 male subjects in psychosis group. Sociodemographic and clinical characteristics were recorded. Psychotic symptom severity of psychosis group subjects was measured. The ten-year CVD risk was calculated using QRISK®3 model. RESULTS: Age, cigarettes/pack-years, alcohol use onset age, drug use onset age, methamphetamine use onset age, duration of methamphetamine use, education and marital status of the groups were similar (p > 0.05). There was a statistical difference between the non-psychosis and psychosis groups in terms of self-mutilation history (p < 0.001), suicidal attempt history (p = 0.007), homicidal attempt history (p = 0.002), psychiatric hospitalization history (p = 0.010). Ten-year QRISK®3 score was 4.90 ± 9.30 in the psychosis group, while it was 1.60 ± 1.43 in the non-psychosis group (p = 0.004). The mean heart age of the psychosis group was 14 years higher than their chronological age, while the mean heart age of the non-psychosis group was 8 years higher. Neutrophil to lymphocyte ratio (NLR) (p = 0.003) was higher in the psychosis group. A significant correlation was detected between ten-year QRISK®3 and positive psychotic symptoms in the psychosis group (r = 0.274, p = 0.020). Regression analysis showed that self-mutilation history, NLR and relative risk obtained from QRISK®3 can be used to distinguish non-psychosis group and psychosis group subjects (sensitivity = 91.7; Nagelkerke R2 0.438; p = 0.001). CONCLUSIONS: This study is important as it demonstrates for the first time that among the subjects using marijuana and methamphetamine, those with psychotic symptoms have a higher NLR and ten-year CVD risk.


Assuntos
Transtornos Relacionados ao Uso de Anfetaminas , Doenças Cardiovasculares , Metanfetamina , Transtornos Psicóticos , Humanos , Masculino , Metanfetamina/efeitos adversos , Adulto , Doenças Cardiovasculares/epidemiologia , Transtornos Relacionados ao Uso de Anfetaminas/epidemiologia , Transtornos Relacionados ao Uso de Anfetaminas/complicações , Transtornos Psicóticos/epidemiologia , Comorbidade , Fatores de Risco , Uso da Maconha/epidemiologia , Pessoa de Meia-Idade , Adulto Jovem
11.
Cureus ; 16(7): e65010, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39161505

RESUMO

Lennox-Gastaut syndrome (LGS) is a form of severe childhood epilepsy, with most children experiencing seizures before reaching the age of eight. Typically, patients have multiple types of seizures, making an accurate diagnosis challenging. While it can be secondary to other causes, often, it is idiopathic. Over time, children develop cognitive impairment, leading to intellectual disability. The mainstay of treatment and management is seizure control. However, management remains challenging due to the complexity of the syndrome, as it is associated with multiple seizure types, intellectual deterioration, and other psychiatric comorbidities. We present the case of a 19-year-old male diagnosed with LGS and treated with various available therapies, who demonstrated multiple breakthrough seizures, significant neurocognitive disabilities, and behavior challenges. Additionally, the patient displayed psychotic features of auditory hallucinations, aggression, and attempts at self-mutilation, a rare clinical presentation in LGS.

12.
Artigo em Inglês | MEDLINE | ID: mdl-39120778

RESUMO

Virtual clinical services became the primary treatment modality in a large U.S. HMO psychiatry department during the COVID-19 pandemic. A mixed methods quality improvement project was developed to address psychosis, severe anxiety, and stressors unique to COVID-19 and sheltering in place. The purpose was to determine if a virtual 10-week pilot program combining psychoeducation, skills-based training, experiential exercises using third-wave CBT, and process questions would decrease symptoms and hospitalization rates and improve quality of life. Pre- and postmeasure scores on pandemic-related stress (the PRSF), perceived stress (PSS), and general patient health (PHQ-9) were gathered from five patients in the Department of Psychiatry at Kaiser Permanente in Oakland, California. Qualitative interviews explored patients' perceptions of program benefits. Mean, median, and range on the pre- and postprogram assessments and paired samples t tests for means were calculated. Quantitative results were not statistically significant: p = 0.32 (Revised PRSF), p = 0.34 (PSS), p = 0.94 (PHQ-9). In interviews, most participants reported a decrease in pandemic-related stress. Half reported a decrease in general perceived stress. Half reported no change. Self-assessment reflected perceptions of benefits from this 10-week program, using words such as useful and important. The virtual program helped relieve pandemic-related stress and improved overall quality of life. The results show promise for expanding the program to other hospitals providing services for this diagnostic population.

13.
BJPsych Open ; 10(5): e146, 2024 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-39118412

RESUMO

BACKGROUND: Developmental trauma increases psychosis risk and is associated with poor prognosis. It has been proposed that psychosis in survivors of developmental trauma gives rise to a distinct 'traumatogenic' phenotype. AIMS: Given the implications for personalised treatment, we sought to explore the traumatogenic psychosis phenotype hypothesis in a systematic review and meta-analysis of studies comparing psychotic presentations between adults with and without developmental trauma histories. METHOD: We registered the systematic review on PROSPERO (CRD42019131245) and systematically searched EMBASE, Medline and PsycINFO. The outcomes of interests were quantitative and qualitative comparisons in psychotic symptom expression (positive, negative, cognitive) and other domains of psychopathology, including affect regulation, sleep, depression and anxiety, between adults with and without experience of developmental trauma. RESULTS: Of 34 studies included (N = 13 150), 11 were meta-analysed (n = 2842). A significant relationship was found between developmental trauma and increased symptom severity for positive (Hedge's g = 0.27; 95% CI 0.10-0.44; P = 0.002), but not negative symptoms (Hedge's g = 0.13; 95% CI -0.04 to 0.30; P = 0.14). Developmental trauma was associated with greater neurocognitive, specifically executive, deficits, as well as poorer affect, dissociation and social cognition. Furthermore, psychotic symptom content thematically related to traumatic memories in survivors of developmental trauma. CONCLUSIONS: Our findings that developmental trauma is associated with more severe positive and affective symptoms, and qualitative differences in symptom expression, support the notion that there may be a traumatogenic psychosis phenotype. However, underdiagnosis of post-traumatic stress disorder may also explain some of these findings. More research is needed to explore this further.

14.
Psychiatry Res ; 339: 116102, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39089189

RESUMO

Individuals with schizophrenia generally show difficulties in interpersonal communication. Linguistic analyses shed new light on speech atypicalities in schizophrenia. However, very little is known about conversational interaction management by these individuals. Moreover, the relationship between linguistic features, psychopathology, and patients' subjectivity has received limited attention to date. We used a novel methodology to explore dyadic conversations involving 58 participants (29 individuals with schizophrenia and 29 control persons) and medical doctors. High-quality stereo recordings were obtained and used to quantify turn-taking patterns. We investigated psychopathological dimensions and subjective experiences using the Positive and Negative Syndrome Scale for Schizophrenia (PANSS), the Examination of Anomalous Self Experience scale (EASE), the Autism Rating Scale (ARS) and the Abnormal Bodily Phenomena questionnaire (ABPq). Different turn-taking patterns of both patients and interviewers characterised conversations involving individuals with schizophrenia. We observed higher levels of overlap and mutual silence in dialogues with the patients compared to dialogues with control persons. Mutual silence was associated with negative symptom severity; no dialogical feature was correlated with anomalous subjective experiences. Our findings suggest that individuals with schizophrenia display peculiar turn-taking behaviour, thereby enhancing our understanding of interactional coordination in schizophrenia.


Assuntos
Esquizofrenia , Psicologia do Esquizofrênico , Humanos , Masculino , Feminino , Adulto , Esquizofrenia/fisiopatologia , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Comunicação , Relações Interpessoais , Adulto Jovem , Idioma , Inquéritos e Questionários
15.
Breastfeed Med ; 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39109411

RESUMO

Introduction: Lithium remains a gold standard treatment for bipolar disorder including during peripartum. Historically, guidelines advised against breastfeeding while taking lithium though recent data suggest it is acceptable for a healthy infant. Lack of awareness of acceptability contributes to decreased patient and clinician comfort and low breastfeeding rates. We report current breastfeeding rates, monitoring practices, and infant outcomes with lithium exposure in breastmilk at our institution. Methods: A retrospective chart review was conducted at a single academic medical center using records from 2013 to 2023. Electronic medical records were queried to identify patients prescribed lithium postpartum. Data were collected on timing of lithium initiation, lithium dose and concentration, breastfeeding status, and infant outcomes. Results: A total of 18 cases of lithium use in the postpartum period were identified. A total of 39% (n = 7) of patients taking lithium postpartum breastfed. Most patients, 61% (n = 11), initiated lithium prior to pregnancy, 11% (n = 2) initiated during pregnancy and 27% (n = 5) started postpartum. Four infant charts were reviewed with no reports of adverse events. Of these infants, average maternal lithium dose was 750 mg daily, with an average maternal serum lithium concentration of 0.62 mmol/L and average infant serum lithium concentration of 0.16 mmol/L. Conclusion: Our data demonstrate most patients using lithium postpartum have been taking lithium long-term and are not breastfeeding. Lithium exposure in breastmilk appears to be tolerated by healthy infants. There is a need for ongoing research and education on acceptability and infant monitoring recommendations to support patients who would like to breastfeed while on lithium.

16.
Pharmacol Res ; 208: 107343, 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39127265

RESUMO

Psychosis is a characterizing feature of many mental disorders that dramatically affects human thoughts and perceptions, influencing the ability to distinguish between what is real and what is not. Both genetic and environmental factors, such as stressful events or drug use, play a pivotal role in the development of symptomatology and therefore changes in the epigenome may be of relevance in modeling a psychotic phenotype. According to the well-documented dysregulation of endocannabinoid and dopaminergic system genes in schizophrenia, we investigated DNA methylation cannabinoid type 1 receptor (CNR1) and dopamine D2 receptor (DRD2) genes in saliva samples from psychotic subjects using pyrosequencing. The epigenetic mark was significantly higher and directly correlated for both genes in psychotic subjects compared to healthy controls. We also showed that these DNA methylation levels were lower in psychotic subjects reporting current delta-9-tetrahydrocannabinol (THC) consumption, a well-known risk factor for developing psychosis throughout the lifespan, resembling those of controls at least for the DRD2 gene. Overall, our data confirm the key role of CNR1 and DRD2 gene regulation in psychosis and suggest DNA methylation levels at specific CpG sites as potential biomarkers, but just in those psychotic subjects not consuming THC.

17.
JMIR Serious Games ; 12: e51512, 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39113378

RESUMO

Unlabelled: Virtual reality (VR) is an immersive technology in which delivery of psychological therapy techniques can be automated. Techniques can be implemented similarly to real-world delivery or in ways that are not possible in the real world to enhance efficacy. The potential is for greater access for patients to effective therapy. Despite an increase in the use of VR for mental health, there are few descriptions of how to build and design automated VR therapies. We describe the development of Phoenix VR Self-Confidence Therapy, designed to increase positive self-beliefs in young patients diagnosed with psychosis in order to improve psychological well-being. A double-diamond, user-centered design process conducted over the course of 18 months was used, involving stakeholders from multiple areas: individuals with lived experience of psychosis, clinical psychologists, treatment designers, and VR software developers. Thirteen meetings were held with young patients diagnosed with psychosis to increase the understanding and improve the assessment of positive self-beliefs, help design the scenarios for implementing therapeutic techniques, and conduct user testing. The resulting Phoenix therapy is a class I United Kingdom Conformity Assessed (UKCA)-certified medical device designed to be used on the standalone Meta Quest 2 (Meta Platforms) headset. Phoenix aims to build up 3 types of positive self-beliefs that are connected to psychological well-being. In a community farm area, tasks are designed to increase a sense of mastery and achievement ("I can make a difference"); in a TV studio, users complete an activity with graded levels of difficulty to promote success in the face of a challenge ("I can do this"); and in a forest by a lake, activities are designed to encourage feelings of pleasure and enjoyment ("I can enjoy things"). Phoenix is delivered over the course of approximately 6 weekly sessions supported by a mental health provider. Patients can take the headsets home to use in between sessions. Usability testing with individuals with lived experience of psychosis, as well as patients in the National Health Service (aged 16-26 years), demonstrated that Phoenix is engaging, easy to use, and has high levels of satisfaction.

18.
Artigo em Inglês | MEDLINE | ID: mdl-39152624

RESUMO

WHAT IS KNOWN ON THE SUBJECT?: In daily psychiatric practice, understanding individuals often involves formulating the clinical case, which may lead to viewing them solely as symptoms to be solved. Consequently, it can be challenging to see the individual beyond their symptoms. However, trying to understand the individual by his/her writings about narratives can offer broader perspectives and extend beyond being a medium for patients to express their experiences. On understanding writing, hermeneutics will be a resourceful method. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: This study aims to propose a reevaluation of the nature of therapeutic communication among individuals with schizophrenia, psychiatrists, and psychiatric nurses by interpreting their writings on the same written narratives through a hermeneutic analysis. Our study has unique features compared to previous studies on communication between mental health professionals and patients. We directly investigated the act of understanding through the writings of the three groups of participants. The participants were also engaged in reading and writing about the narratives instead of relying on clinical interviews or self-report questionnaires. To the best of our knowledge, our study is the first hermeneutic study to examine the nature of reflection while all three groups encounter the same narratives as readers. IMPLICATIONS FOR PRACTICE?: The results point to the need for psychiatrists/psychiatric nurses to develop new perspectives and skills in understanding/interacting with individuals with schizophrenia. Our study could be a pioneer sample in applying hermeneutics as a prevailing method to mental health nursing practice. ABSTRACT: INTRODUCTION: Understanding individuals with schizophrenia is an essential but challenging phenomenon in psychiatry. AIM/QUESTION: This study proposes a reevaluation of the nature of therapeutic communication among individuals with schizophrenia, psychiatrists and psychiatric nurses by interpreting their writings on the same written narratives through a hermeneutic analysis. METHOD: In this study, employing a qualitative descriptive methodology utilising hermeneutic analysis, participants read the five narratives, wrote down their opinions on each narratives and answered nine questions to express their own personal writing experiences. RESULTS: Participants from each group acted as both 'readers' and 'authors' while rewriting the selected five short narratives based on their own sense of readings. The expression, rewriting refers to the act of reading and written interpretations of participants and researchers in this study. While individuals with schizophrenia primarily focused on the text (narrative) in their readings and writings, psychiatrists and psychiatric nurses tended to focus on reader (themselves) in their interpretations. DISCUSSION: Although reading should be approached as a process of discovery rather than merely seeking predetermined knowledge, psychiatrists and psychiatric nurses read the narratives as if the author were a patient or as the signs of an illness. IMPLICATIONS FOR PRACTICE: The results point to the need for psychiatrists/psychiatric nurses to develop new perspectives and skills in understanding and interacting with individuals with schizophrenia.

19.
Psychiatry Res Neuroimaging ; 344: 111861, 2024 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-39153230

RESUMO

Understanding the neurophysiological mechanisms of schizophrenia (SZ) is one of the challenges of neuroscience. Many anatomical and functional studies have pointed to problems in brain connectivity in SZ individuals. However, little is known about the relationships between specific brain regions and impairments in brain connectivity in SZ individuals. Herein we propose a new approach using time-varying graphs and the motif synchronization method to build dynamic brain functional networks (BFNs). Dynamic BFNs were constructed from resting-state electroencephalography (rs-EEG) of 14 schizophrenia (SZ) individuals and 14 healthy controls (HCs). BFNs were evaluated based on the percentage of synchronization importance between a pair of regions (considering external and internal interactions) over time. We found differences in the directed interaction between brain regions in SZ individuals compared to the control group. Our method revealed low bilaterally directed interactions between the temporal lobes in SZ individuals compared to HCs, indicating a potential link between altered brain connectivity and the characteristic symptoms of schizophrenia. From a clinical perspective, these results shed light on developing new therapeutic approaches targeting these specific neural interactions that are altered in individuals with SZ. This knowledge allows the application of better interventions focused on restoring or compensating for interrupted connectivity patterns.

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