Low-frequency rTMS induces modifications in cortical structural connectivity - functional connectivity coupling in schizophrenia patients with auditory verbal hallucinations.

Auditory verbal hallucinations (AVH) are distinctive clinical manifestations of schizophrenia. While low-frequency repetitive transcranial magnetic stimulation (rTMS) has demonstrated potential in mitigating AVH, the precise mechanisms by which it operates remain obscure. This study aimed to investigate alternations in structural connectivity and functional connectivity (SC-FC) coupling among schizophrenia patients with AVH prior to and following treatment with 1 Hz rTMS that specifically targets the left temporoparietal junction. Initially, patients exhibited significantly reduced macroscopic whole brain level SC-FC coupling compared to healthy controls. Notably, SC-FC coupling increased significantly across multiple networks, including the somatomotor, dorsal attention, ventral attention, frontoparietal control, and default mode networks, following rTMS treatment. Significant alternations in SC-FC coupling were noted in critical nodes comprising the somatomotor network and the default mode network, such as the precentral gyrus and the ventromedial prefrontal cortex, respectively. The alternations in SC-FC coupling exhibited a correlation with the amelioration of clinical symptom. The results of our study illuminate the intricate relationship between white matter structures and neuronal activity in patients who are receiving low-frequency rTMS. This advances our understanding of the foundational mechanisms underlying rTMS treatment for AVH.

Reducing Distress from Auditory Verbal Hallucinations: A Multicenter, Parallel, Single-Blind, Randomized Controlled Feasibility Trial of Relating Therapy.

INTRODUCTION: There is a significant demand for interventions that reduce distress related to auditory verbal hallucinations (AVHs). AVH distress is associated with the way voice hearers relate with AVHs. We aimed to establish the feasibility of a randomized controlled trial to demonstrate that adding "Relating Therapy" (RT) to treatment as usual (TAU) is superior to TAU in reducing AVH distress. METHODS: We conducted a multicenter, parallel, single-blind, randomized controlled feasibility trial in five mental health centers in Germany. Participants were ≥19 years of age, had persistent and distressing AVHs, and had a diagnosis of a schizophrenia-spectrum disorder. RT was delivered over a maximum of 16 sessions within 5 months. Blind assessments were conducted at baseline and at 5 and 9 months. Feasibility outcomes were the number of patients recruited and retained, and safety and therapist adherence. The primary endpoint was the distress factor score of the AVH subscale of the Psychotic Symptoms Rating Scales at 9 months. RESULTS: Eighty-five of 177 enrolled participants were randomized into RT + TAU (n = 43) or TAU (n = 42). Feasibility was excellent with 87% retention at 9 months, 86% reaching treatment uptake criteria, 98% therapist adherence, and no unexpected serious adverse reactions. Compared to TAU, RT + TAU showed nonsignificant trends toward less AVH distress (b = -2.40, SE = 1.52, p = 0.121, 90% CI (-4.94 to 0.15) and stronger improvement on all but one of the secondary outcomes. CONCLUSION: A randomized controlled trial of RT is feasible, safe, and well accepted. Our results provide an encouraging basis to further test the efficacy of RT in a definitive multicenter trial.

Eight-month intensive meditation-based intervention improves refractory hallucinations and delusions and quality of life in male inpatients with schizophrenia: a randomized controlled trial.

AIM: This study investigated the impact of an 8-month daily-guided intensive meditation-based intervention (iMI) on persistent hallucinations/delusions and health-related quality of life (QoL) in male inpatients with schizophrenia with treatment-refractory hallucinations and delusions (TRHDs). METHODS: A randomized controlled trial assigned 64 male inpatients with schizophrenia and TRHD equally to an 8-month iMI plus general rehabilitation program (GRP) or GRP alone. Assessments were conducted at baseline and the third and eighth months using the Positive and Negative Syndrome Scale (PANSS), 36-Item Short Form-36 (SF-36), and Five Facet Mindfulness Questionnaire (FFMQ). Primary outcomes measured PANSS reduction rates for total score, positive symptoms, and hallucinations/delusions items. Secondary outcomes assessed PANSS, SF-36, and FFMQ scores for psychotic symptoms, health-related QoL, and mindfulness skills, respectively. RESULTS: In the primary outcome, iMI significantly improved the reduction rates of PANSS total score, positive symptoms, and hallucination/delusion items compared with GRP at both the third and eighth months. Treatment response rates (≥25% reduction) for these measures significantly increased in the iMI group at the eighth month. Concerning secondary outcomes, iMI significantly reduced PANSS total score and hallucination/delusion items, while increasing scores in physical activity and mindfulness skills at both the third and eighth months compared with GRP. These effects were more pronounced with an 8-month intervention compared with a 3-month intervention. CONCLUSIONS: An iMI benefits patients with TRHDs by reducing persistent hallucinations/delusions and enhancing health-related QoL. Longer iMI duration yields superior treatment outcomes.

Intersections of phenomenology, voice beliefs and distress in bipolar disorder: a comparison with schizophrenia.

BACKGROUND: Auditory verbal hallucinations (AVH), or voice-hearing, can be a prominent symptom during fluctuating mood states in bipolar disorder (BD). AIMS: The current study aimed to: (i) compare AVH-related distress in BD relative to schizophrenia (SCZ), (ii) examine correlations between phenomenology and voice beliefs across each group, and (iii) explore how voice beliefs may uniquely contribute to distress in BD and SCZ. METHOD: Participants were recruited from two international sites in Australia (BD=31; SCZ=50) and the UK (BD=17). Basic demographic-clinical information was collected, and mood symptoms were assessed. To document AVH characteristics, a 4-factor model of the Psychotic Symptoms Rating Scale and the Beliefs about Voices Questionnaire-Revised were used. Statistical analyses consisted of group-wise comparisons, Pearson's correlations and multiple hierarchical regressions. RESULTS: It was found that AVH-related distress was not significantly higher in BD than SCZ, but those with BD made significantly more internal attributions for their voices. In the BD group, AVH-related distress was significantly positively correlated with malevolence, omnipotence and resistance, However, only resistance, alongside mania and depressive symptoms, significantly contributed to AVH-related distress in BD. DISCUSSION: Our findings have several clinical implications, including identification of voice resistance as a potential therapeutic target to prioritise in BD. Factoring in the influence of mood symptoms on AVH-related distress as well as adopting more acceptance-oriented therapies may also be of benefit.

Imagery-Focused Therapy for Visual Hallucinations: A Case Series.

INTRODUCTION: Visual hallucinations (VH) are more common than previously thought and are linked to higher levels of distress and disability in people with a psychotic illness. Despite this, scant attention has been given to VHs in the clinical literature, and the few therapy case series of cognitive behavioural therapy (CBT) published to date have not demonstrated reliable change. In other areas of clinical research, problematic mental imagery has been found to be more strongly related to negative affect in psychological disorders than negative linguistic thinking, and imagery focused techniques have commonly been found to improve the outcomes in CBT trials. Given VHs have many similarities with visual mental imagery and many of the distressing beliefs associated with VHs targeted in CBT are maintained by accompanying mental imagery (i.e., imaging a hallucinated figure attacking them), it seems plausible that an imagery-focused approach to treating VHs may be most effective. METHODS: The current study is a multiple baseline case series (N = 11) of a 10-session imagery-focused therapy for VH in a transdiagnostic sample. RESULTS: The study had good attendance and feedback, no adverse events and only one [seemly unrelated] drop-out, suggesting good feasibility, safety and acceptability. The majority of clients reported reduction on both full-scale measures (administered at 3 baselines, midtherapy, posttherapy and 3-month follow-up) and weekly measures of VH severity and distress, ranging from medium to large effect sizes. CONCLUSIONS: The case series suggests that an imagery-focused approach to treating VHs may be beneficial, with a recommendation for more rigorous clinical trials to follow.

Effectiveness of Imagery Rescripting for Trauma-Affected Voice Hearers: An Open Trial.

OBJECTIVE: People who hear voices (auditory verbal hallucinations) often have post-traumatic stress disorder (PTSD) symptoms. Cognitive behavioural therapies (CBT) have yielded inconsistent findings when treating voices and PTSD symptoms in voice hearers. Preliminary evidence suggests imagery rescripting (ImRs) is associated with large reductions in voice hearing and PTSD symptoms. This study replicated past studies using a larger sample to examine the effectiveness of ImRs in reducing such symptoms. METHOD: Participants (N = 49; 65.3% female; Mage = 35.86) were clients at an Australian transdiagnostic clinic for voice hearers. A one-arm open trial design was used with three pre-treatment baselines and a mid-treatment, post-treatment and 3-month follow up assessments of PTSD symptoms (Posttraumatic Diagnostic Scale for DSM-5), voices (Hamilton Program for Schizophrenia Voices Questionnaire) and emotional symptoms (Depression Anxiety and Stress Scales-21). Five single-item measures were administered weekly to explore the trajectories of change in trauma intrusions, voice-related distress, voice frequency and positive and negative voice valance. RESULTS: ImRs was associated with very large reductions in PTSD symptoms and voices (both emotional and physical characteristics of voices) and emotional symptoms at post-treatment and follow-up (η2 p = 0.24-0.44). There were medium-large to large reductions in weekly symptoms of intrusions, voice-related distress, voice frequency and negative voices (η2 p = 0.12-0.16) and a non-significant increase in positive voices (η2 p = 0.05). CONCLUSIONS: This study provides further evidence that ImRs is an effective treatment for voices and PTSD symptoms in voice hearers with a range of diagnoses. Randomised controlled trials are needed to compare the efficacy of ImRs to CBT protocols.

Practitioner Review: Psychosis in children and adolescents.

Psychotic symptoms, including hallucinations, delusions, and disorganized thinking and behaviors, are the hallmarks of schizophrenia; but may also present in the context of other psychiatric and medical conditions. Many children and adolescents describe psychotic-like experiences, which can be associated with other types of psychopathology and past experiences (e.g., trauma, substance use, and suicidality). However, most youth reporting such experiences do not have, nor will ever develop, schizophrenia or another psychotic disorder. Accurate assessment is critical because these different presentations have different diagnostic and treatment implications. For this review, we focus primarily on the diagnosis and treatment of early onset schizophrenia. In addition, we review the development of community-based first-episode psychosis programming, and the importance of early intervention and coordinated care.

Cerebral blood flow changes in schizophrenia patients with auditory verbal hallucinations during low-frequency rTMS treatment.

Auditory verbal hallucinations (AVH) are a prominent symptom of schizophrenia. Low-frequency repetitive transcranial magnetic stimulation (rTMS) has been evidenced to improve the treatment of AVH in schizophrenia. Although abnormalities in resting-state cerebral blood flow (CBF) have been reported in schizophrenia, the perfusion alterations specific to schizophrenia patients with AVH during rTMS require further investigation. In this study, we used arterial spin labeling (ASL) to investigate changes in brain perfusion in schizophrenia patients with AVH, and their associations with clinical improvement following low-frequency rTMS treatment applied to the left temporoparietal junction area. We observed improvements in clinical symptoms (e.g., positive symptoms and AVH) and certain neurocognitive functions (e.g., verbal learning and visual learning) following treatment. Furthermore, at baseline, the patients showed reductions in CBF in regions associated with language, sensory, and cognition compared to controls, primarily located in the prefrontal cortices (e.g., left inferior frontal gyrus and left middle frontal gyrus), occipital lobe (e.g., left calcarine cortex), and cingulate cortex (e.g., bilateral middle cingulate cortex), compared to controls. Conversely, we observed increased CBF in the left inferior temporal gyrus and bilateral putamen in patients relative to controls, regions known to be involved in AVH. However, the hypoperfusion or hyperperfusion patterns did not persist and instead were normalized, and were related to clinical response (e.g., AVH) in patients during low-frequency rTMS treatment. Importantly, the changes in brain perfusion were related to clinical response (e.g., AVH) in patients. Our findings suggest that low-frequency rTMS can regulate brain perfusion involving critical circuits by its remote effect in schizophrenia, and may play an important mechanistic role in the treatment of AVH.

Coping Strategy Enhancement for Auditory Verbal Hallucinations Within Routine Clinical Practice.

ABSTRACT: Auditory verbal hallucinations (AVH) are often multiple distressing experiences. Emerging evidence suggests that interventions informed by the principles of cognitive behavioral therapy, such as brief Cognitive Strategy Enhancement (brief-CSE), can reduce the distress related to AVH. The benefits of brief-CSE have been demonstrated for English-speaking patients. This uncontrolled pilot study, conducted in routine clinical practice, evaluated the benefits of brief-CSE within a group of French-speaking AVH hearers. Thirty-two patients were offered the brief-CSE intervention. Self-administered questionnaires were completed pre-post intervention. A significant reduction was observed in AVH distress, with a large effect size, and for more than half of the patients, this reduction was clinically meaningful. AVH severity and anxiety also decreased significantly. This study demonstrates that brief-CSE can be implemented in non-English-speaking routine clinical practice and can reduce several aspects of AVH subjective experience. There is a need to confirm these findings in a larger sample.

Suppressing visual hallucinations in an adolescent by occipital transcranial magnetic stimulation: A single-case experimental research design.

Visual hallucinations after central or peripheral impairment, commonly called Charles Bonnet syndrome, are often highly distressing and with few available treatment options. Here we report a case where an adolescent developed severely distressing visual hallucinations after hypoxic damage to the occipital cortex following a suicide attempt. The patient received active and sham occipital continuous theta-burst stimulation (cTBS) in a single-case experimental research design and a subsequent open phase, to evaluate cTBS as a Charles Bonnet treatment. The visual hallucinations seemed to decrease more during active than sham cTBS in the blind phase, and in the following week of repeated five daily treatments they almost disappeared. A normalization of increased activity in the lateral visual network after cTBS was observed on a functional magnetic resonance imaging resting-state analysis compared with 42 healthy controls. Visual evoked potentials stayed largely unchanged both in the sham-controlled blind phase and the subsequent open phase. During the two weeks after the open phase with repeated cTBS sessions, the visual hallucinations gradually reappeared and almost returned to the baseline level. Our findings suggest that active cTBS over the primary visual cortex can reduce visual hallucinations through modulation of downstream visual regions, though the effect is temporally limited.

Visual networks: Electric brain stimulation and diffusion tensor imaging.

OBJECTIVE: The present study investigated the networks of visual functional areas using electric brain stimulation (EBS) and diffusion tensor imaging (DTI). METHODS: Thirteen patients with intractable focal epilepsy in which visual functional areas were identified by EBS were enrolled. An electric stimulation at 50Hz was applied to electrodes during several tasks. DTI was used to identify subcortical fibers originating from the visual functional areas identified by EBS. RESULT: The electrical stimulation induced three types of visual symptoms: visual illusions (change of vision), visual hallucinations (appearance of a new object), and blurred vision. Visual illusions were associated with stimulation of lateral temporo-parieto-occipital areas, and visual hallucinations with stimulation of lateral/basal temporal areas, the occipital lobe and the precuneus. Stimulus intensities eliciting visual illusions were significantly higher than those for visual hallucinations. Tractography revealed that the superior fronto-occipital fasciculus was associated with visual illusions and the middle longitudinal fasciculus with visual hallucinations, and both symptoms shared several subcortical fibers such as the vertical occipital fasciculus, inferior fronto-occipital fasciculus, superior longitudinal fasciculus, inferior longitudinal fasciculus, optic radiations, and commissural fibers. CONCLUSION: The present study revealed the characteristic cortical regions and networks of visual functional areas. The results obtained provide information on human visual functions and are a practical guide for electrical cortical stimulation.

Strategies for the Management of Voices Shared in a Brazilian Hearing Voices Group.

Hearing Voices peer support groups allow people to construct understandings of their voices. The groups focus on supporting voice hearers in reducing distress associated with voices through an array of strategies. This study sought to describe the voice management strategies shared in a hearing voices peer support group within a Brazilian public mental health service. In this qualitative study we recorded 10 group meetings. Transcripts were coded and analyzed using thematic analysis. The findings indicated five themes, described as: (1) strategies used to avoid distressing experiences; (2) strategies for managing the voices; (3) strategies for seeking social support; (4) strategies for creating a sense of belonging in the community; and (5) strategies related to spirituality and religiosity. These strategies appear to be essential in helping voice hearers feel less alone, reducing the amount of distress associated with hearing voices, and developing coping strategies. These groups provide people who hear voices with the opportunity to share their stories with peers in a group setting, construct new understandings about the experience, and learn strategies for managing their voices. Accordingly, there are great possibilities for the use of these groups within mental health services throughout Latin America.

Effects of a 12-Session Symptom Self-Management Course on Forensic Psychiatric Inpatients' Auditory Hallucinations and Anxiety.

The purpose of this clinical dissemination project was to evaluate changes in intensity of unpleasant auditory hallucinations (AH) and level of anxiety after forensic psychiatric inpatients attended an evidence-based symptom self-management course. The course was taught twice to patients with schizophrenic disorders. Data were collected using five self-rating measures. Seventy percent of participants reported reduced AH and anxiety; 100% reported helpfulness of being with others with similar symptoms; 90% would recommend the course to others. The course facilitator reported: improved communication, comfort, and effectiveness working with people with AH, plans to teach the course again and recommend it to colleagues.

Benefits of Hearing Voices Groups & Other Self-Help Groups for Voice Hearers: A Systematic Review.

People who hear voices that others do not often rely on mainstream mental health services. Several alternatives to treatment have grown in popularity including "Hearing Voices Groups" and other self-help groups for voice hearers. The aim of this systematic review is to evaluate the current evidence relating to the use of Hearing Voices Groups (HVGs) and other self-help groups for voice hearers, and identify the benefits felt by those attending such groups. The following databases were searched for relevant academic articles: CINAHL; APA PsycArticles; APA PsycInfo; Social Sciences; SocINDEX; UK & Ireland Reference Centre and Medline, with 13 papers identified for inclusion. Participants reported several benefits of attending a HVG/self-help group, which reduced isolation, improved social and coping skills, and gave them a better understanding of the meaning and context of their voices. The groups also provide hope for the future and act as a catalyst for recovery. These study findings suggest that voice hearers find some benefits from attending HVGs/self-help groups. Evidence indicates that voice hearers can live meaningful lives and continue to hear voices once context and meaning to their voices become clear. HVGs/self-help groups provide a vital service to voice hearers, which they felt was not available within mainstream mental health services. If mental health providers gained a better understanding of the HVN, they may be able to integrate the values and ethos of the HVN into groups for voice hearers within mainstream mental health services or signpost voice hearers to these groups.

The Experience of Hearing Voices: Challenges and Coping Mechanisms.

Auditory hallucinations or hearing voices are often associated with schizophrenia and other psychotic disorders. However, several voice-hearers do not have any mental health issues or diagnoses. The study presented in this paper aimed to explore how voice-hearers understand and react to their concerns by reflecting on and exploring their experiences and interpretations of these experiences. The participants were nine individuals - three females, four males and two others, all experiencing auditory hallucinations for at least five years, residing either at their home or at one of the Hostels run by Richmond Foundation (Malta). A qualitative approach following the principles of Interpretative Phenomenological Analysis was used. In-depth interviews were conducted to explore how the participants perceive their voices, what coping strategies are used, and how their experiences affect their lives. Four super-ordinate themes related to the participants' perceptions and their interpretation of the experience of hearing voices were identified: 'A tough experience', 'Methods used to cope with voices', 'Factors linked to recovery' and 'Relationships'. Furthermore, the study elicited the voice-hearers' recommendations (both for other voice-hearers and mental health professionals).

Intent to Understand the Meaning of Psychotic Symptoms During Patient-Psychiatrist Interactions.

Research confirms that although patients experiencing psychosis want to speak about their symptoms with psychiatrists, psychiatrists are often hesitant to engage them directly in such conversations because of their fear of colluding, promoting defensiveness, or rupturing the therapeutic alliance. As a result, patients are often left to contend with confusing psychotic experiences, such as hallucinations and delusions, that they cannot make sense of on their own. In this article, the common barriers that prevent engagement in conversations about psychosis are described, and the conventional wisdom about the futility of talking with patients about delusions is challenged. The article suggests that instead of avoiding conversations about psychotic ideas, psychiatrists should embrace an "intent to understand," an inquisitive state of mind even in the face of seemingly incomprehensible symptoms. Such a stance can promote the therapeutic alliance, deepen an understanding of the patient as a person, and facilitate an integrative recovery style. Finally, the article offers clinical pointers, including the importance of behaving courteously and respectfully, listening to the affect expressed in the symptom, and looking for connections between the symptom and painful life experiences. Maintaining an intent to understand may help psychiatric residents-in-training, as well as experienced clinicians, to foster an empathic understanding that builds a positive therapeutic alliance and contributes to more successful pharmacotherapy and psychotherapeutic interventions.

[Pilot study of Experience Focused Counselling by nurses with people who hear voices: Evaluation of the implementation of the study protocol]. / Pilotstudie zu Erfahrungsfokussierter Beratung durch Pflegende bei Menschen, die Stimmen hören.

Pilot study of Experience Focused Counselling by nurses with people who hear voices: Evaluation of the implementation of the study protocol Abstract: Background: Hearing voices and the treatment and support of people who hear voices and are distressed by the experience are defined differently in psychiatry. In contrast to the medical approach to define and treat voices as symptoms of a disease, the EFC counselling approach developed with voice-hearers focuses on non-pathologizing acceptance and a constructive relationship to voices. Mental health nurses with their focus on everyday life are predestined for the dissemination and application of alternative therapeutic approaches in practice. Aim: The aim was to evaluate the study protocol as part of a pilot study regarding its suitability for a larger trial. Method: The multi centre pilot study had a single-blind randomised controlled design. The intervention consisted of EFC counselling by nurses with people who hear voices. The control group received Treatment As Usual (TAU). The suitability of the study design was evaluated in terms of recruitment, burden on study participants, suitability of assessment tools, the application of EFC counselling and the use of study nurses. Results: As planned 21 participants could be included in the study within fifteen months across the two study sites. Overall, the participants rated the study as not very burdensome and the intervention as helpful. The application of EFC by the nurses as well as the use of study nurses was assessed as good and suitable respectively. Discussion: The evaluation of the study protocol shows that with minor adjustments it is suitable for conducting a larger study.

[Dementia with Lewy bodies: state of the art and perspectives for the clinician]. / Démence à corps de Lewy : état de l'art et perspectives pour le clinicien.

Dementia with Lewy bodies (DLB) is one of the most common causes of dementia, after Alzheimer's disease (AD) and vascular dementia. Its diagnosis remains a challenge for the clinician because of the variety of clinical presentations and comorbidities. The diagnosis is based on clinical criteria such as cognitive fluctuations, visual hallucinations, progressive cognitive impairment, Parkinsonian signs and REM sleep behavioral disorder. Although not specific, biomarkers are helpful for increasing the likelihood of LBD diagnosis and for differentiating LBD from other differential diagnoses such as Parkinson's disease with dementia and Alzheimer's disease. Clinicians should be aware of LBD clinical features and actively look for them in patients with cognitive symptoms, take into consideration the often-associated co-pathologies and to optimize patient's management.

La démence à corps de Lewy (DCL) est l'une des démences les plus fréquentes, après la maladie d'Alzheimer (MA) et la démence vasculaire. Son diagnostic est un défi pour le clinicien du fait de la variété des présentations cliniques et des comorbidités. Le diagnostic repose sur des critères cliniques comme des fluctuations cognitives, des hallucinations visuelles, des troubles cognitifs progressifs, des signes parkinsoniens et un trouble comportemental du sommeil paradoxal. L'utilisation des biomarqueurs, bien que non spécifiques, permet d'augmenter la probabilité de diagnostic de la DCL et de la différencier de la maladie de Parkinson avec démence et de la MA. De ce fait, devant tout sujet âgé avec trouble cognitif, une recherche des symptômes de la DCL est à réaliser en considérant aussi les traitements iatrogènes et les copathologies.

Transcranial Direct Current Stimulation in the Treatment of Visual Hallucinations in Charles Bonnet Syndrome: A Randomized Placebo-Controlled Crossover Trial.

OBJECTIVE: To investigate the potential therapeutic benefits and tolerability of inhibitory transcranial direct current stimulation (tDCS) on the remediation of visual hallucinations in Charles Bonnet syndrome (CBS). DESIGN: Randomized, double-masked, placebo-controlled crossover trial. PARTICIPANTS: Sixteen individuals diagnosed with CBS secondary to visual impairment caused by eye disease experiencing recurrent visual hallucinations. INTERVENTION: All participants received 4 consecutive days of active and placebo cathodal stimulation (current density: 0.29 mA/cm2) to the visual cortex (Oz) over 2 defined treatment weeks, separated by a 4-week washout period. MAIN OUTCOME MEASURES: Ratings of visual hallucination frequency and duration following active and placebo stimulation, accounting for treatment order, using a 2 × 2 repeated-measures model. Secondary outcomes included impact ratings of visual hallucinations and electrophysiological measures. RESULTS: When compared with placebo treatment, active inhibitory stimulation of visual cortex resulted in a significant reduction in the frequency of visual hallucinations measured by the North East Visual Hallucinations Interview, with a moderate-to-large effect size. Impact measures of visual hallucinations improved in both placebo and active conditions, suggesting support and education for CBS may have therapeutic benefits. Participants who demonstrated greater occipital excitability on electroencephalography assessment at the start of treatment were more likely to report a positive treatment response. Stimulation was found to be tolerable in all participants, with no significant adverse effects reported, including no deterioration in preexisting visual impairment. CONCLUSIONS: Findings indicate that inhibitory tDCS of visual cortex may reduce the frequency of visual hallucinations in people with CBS, particularly individuals who demonstrate greater occipital excitability prior to stimulation. tDCS may offer a feasible intervention option for CBS with no significant side effects, warranting larger-scale clinical trials to further characterize its efficacy.

A systematic review of relational-based therapies for the treatment of auditory hallucinations in patients with psychotic disorders.

BACKGROUND: Auditory hallucinations in patients with psychotic disorders may be very distressing. Unfortunately, a large proportion of individuals are resistant to pharmacological interventions and the gold-standard cognitive-behavioral therapy for psychosis offers at best modest effects. To improve therapeutic outcomes, several therapies have been created to establish a relationship between voice-hearers and their voices. With increasing literature, we conducted a systematic review of dialogical therapies and examined the evidence behind their efficacy. METHODS: A systematic search was performed in PubMed, PsycINFO, Web of Science, and Google Scholar. Articles were included if they discussed the effects of dialogical interventions for patients with psychotic disorders. RESULTS: A total of 17 studies were included within this systematic review. Cumulative evidence from various therapies has shown that entering in a dialog with voices is beneficial to patients, even those who are resistant to current pharmacological treatments. Heightened benefits have been mainly observed with Relating Therapy and Avatar Therapy/Virtual Reality assisted Therapy, with evidence generally of moderate quality. Both these interventions have shown large to very large effects on voices and voice-related distress as well as moderate to large magnitude improvements on affective symptoms. Though, cognitive-behavioral therapy for command hallucinations and making sense of voices noted no improvements on voices. CONCLUSIONS: Literature on relational-based interventions with a strong emphasis on the relational aspects of voice hearing has shown positive effects. Results suggest that these dialogical therapies might surpass the efficacy of current gold-standard approaches.