Psychological therapies for auditory hallucinations (voices): current status and key directions for future research

Recent social stress and severity of auditory hallucinations

BACKGROUND AND HYPOTHESIS

Hearing voices is a common and often distressing experience for people with psychosis, and many individuals experience medication-resistant auditory verbal hallucinations (AVH). Psychosocial interventions are often employed to address distress over hearing voices. However, although links have been made between adverse social experiences and psychosis broadly, no work has yet delineated the relationship between day-to-day social stress and hallucination severity. We aimed to define that relationship in both clinical and non-clinical voice-hearers.

STUDY DESIGN

A sample of 278 participants with a history of hearing voices was selected from the Yale Control Over Perceptual Experiences (COPE) Project. They were administered self-report measures of recent stress and recent auditory experiences within a cross-sectional design. Regression models were used to evaluate whether self-reported aspects of recent stress-and social stress in particular-were related to recent frequency of and distress over hearing voices. Related demographics and clinical characteristics were included as covariates.

STUDY RESULTS

A significant relationship was observed between recent social stress and both recent frequency of and distress over hearing voices. While other aspects of recent stress were also related to recent distress over voices, social stressors uniquely predicted distress over voice-hearing, beyond the influence of other stressors. Depressive symptom severity was also related to distress over voices.

CONCLUSIONS

Results suggest that daily social stress may be an important consideration and a potential treatment target for individuals experiencing clinical distress over auditory hallucinations.

Digitally Enhanced Psychological Assessment and Treatment of Paranoia: A Systematic Review

BACKGROUND

Paranoia is relatively common but can lead to significant distress, impairment and need for care. Digital technologies offer a valuable extension to service provision and are increasingly being integrated into healthcare. This systematic review evaluated feasibility, acceptability, and effectiveness of digitally enhanced psychological assessments and treatments for paranoia across the paranoia continuum (PROSPERO: CRD42023393257).

METHODS

Databases PsychINFO, EMBASE, MEDLINE and Web of Science were searched until 12 June 2023; the Effective Public Health Practice Project (EPHPP) quality assessment tool evaluated studies; and a narrative synthesis was conducted.

RESULTS

Twenty-seven studies met inclusion criteria (n = 3457, 23 assessment and 4 treatment, 2005-2023, most in Europe). Technologies included virtual reality (VR, n = 23), experience sampling methodology (ESM, n = 2), an app (n = 1) and a combination of VR and ESM (n = 1). Assessments involved monitoring paranoia under various virtual conditions or in everyday life. Treatments were generally integrated with Cognitive Behaviour Therapy (CBT), which involved using VR to test out threat beliefs and drop safety behaviours or using an app to support slowing down paranoid thinking. EPHPP ratings were strong (n = 8), moderate (n = 12) and weak (n = 7).

CONCLUSIONS

Digitally enhanced assessments and treatments showed promising acceptability, feasibility and treatment effectiveness. Limitations of studies include small sample sizes, lack of comparison groups and long-term data and limited randomised controlled trials. Results support the potential future integration of VR in the assessment of paranoia and show promise for treatments such as CBT, although further clinical trials are required. Investigation of other technologies is limited.

Validation and clinical usefulness of the Hamilton Program for Schizophrenia Voices Questionnaire (HPSVQ) among French-speaking voice-hearers

Auditory verbal hallucinations (AVH), also called voices, are often distressing to individuals experiencing them. Valid and reliable instruments are necessary to document the hearing voices experience across cultures. The Hamilton Program for Schizophrenia Voices Questionnaire (HPSVQ) is becoming a widely used self-administered instrument for assessing characteristics, content and subjective effect of AVH. This study investigates the psychometric characteristics of the HPSVQ French version (HPSVQ FV) in a clinical sample of voice-hearers. The results showed that the HPSVQ yields a global score (HPSVQ-Global) as well as a distress (HPSVQ-Distress) and a severity (HPSVQ-Severity) sub-score having good, acceptable and questionable internal consistency respectively. Significant correlations were found between hallucination severity (BPRS 4.0), distress (PSYRATS-AH), voices acceptance (VAAS-9), anxiety and depression (HADS). However, no significant associations were observed between Suspicion and Unusual Thoughts (BPRS 4.0). At a one-week interval, the temporal stability of the three indices was excellent. Moreover, after a brief cognitive intervention, a significant reduction was observed in all indices. Taken together, the HPSVQ FV demonstrated good construct validity, reliability and sensitivity to change. These findings support the use of the HPSVQ in francophone clinical and research settings. However, the bi-factorial solution of the HPSVQ FV should be further examined in larger samples.

Examining the relationships between cognition and auditory hallucinations: A systematic review

OBJECTIVE

Auditory hallucinations (hearing voices) have been associated with a range of altered cognitive functions, pertaining to signal detection, source-monitoring, memory, inhibition and language processes. Yet, empirical results are inconsistent. Despite this, several theoretical models of auditory hallucinations persist, alongside increasing emphasis on the utility of a multidimensional framework. Thus, clarification of current evidence across the broad scope of proposed mechanisms is warranted.

METHOD

A systematic search of the Web of Science, PubMed and Scopus databases was conducted. Records were screened to confirm the use of an objective behavioural cognitive task, and valid measurement of hallucinations specific to the auditory modality.

RESULTS

Auditory hallucinations were primarily associated with difficulties in perceptual decision-making (i.e. reduced sensitivity/accuracy for signal-noise discrimination; liberal responding to ambiguity), source-monitoring (i.e. self-other and temporal context confusion), working memory and language function (i.e. reduced verbal fluency). Mixed or limited support was observed for perceptual feature discrimination, imagery vividness/illusion susceptibility, source-monitoring for stimulus form and spatial context, recognition and recall memory, executive functions (e.g. attention, inhibition), emotion processing and language comprehension/hemispheric organisation.

CONCLUSIONS

Findings were considered within predictive coding and self-monitoring frameworks. Of concern was the portion of studies which - despite offering auditory-hallucination-specific aims and inferences - employed modality-general measures, and/or diagnostic-based contrasts with psychologically healthy individuals. This review highlights disparities within the literature between theoretical conceptualisations of auditory hallucinations and the body of rigorous empirical evidence supporting such inferences. Future cognitive investigations, beyond the schizophrenia-spectrum, which explicitly define and measure the timeframe and sensory modality of hallucinations, are recommended.

Exploring the cognitive profiles related to unimodal auditory versus multisensory hallucinations in schizophrenia-spectrum disorders

INTRODUCTION

Hallucinations can be experienced across multiple sensory modalities, but psychiatric studies investigating the cognitive mechanisms of hallucinations have been somewhat restricted to the auditory domain. This study explored the cognitive profiles of individuals experiencing multisensory hallucinations (MH) in schizophrenia-spectrum disorders (SSD) and compared these to those experiencing unimodal auditory hallucinations (AH) or no hallucinations (NH).

METHODS

Participants included SSD patients (n = 119) stratified by current hallucination status (NH, AH, MH) and nonclinical controls (NCs; n = 113). Group performance was compared across several cognitive domains: speed of processing, attention, working memory, verbal learning, visual learning, reasoning and problem-solving, social cognition, and inhibition.

RESULTS

The clinical groups performed worse than NCs but differences between the clinical groups were not evident across most cognitive domains. Exploratory analyses revealed that the MH group was more impaired on the visual learning task compared to the NH (but not AH) group.

CONCLUSIONS

Preliminary results suggest that impaired visual learning may be related to MH. This could be attributed to the presence of visual hallucinations (VH), or greater psychopathology, in this group. However, replication is needed, as well as the investigation of other potential cognitive mechanisms of MH.

A phenomenological comparison of auditory hallucinations between borderline personality disorder and schizophrenia: A systematic review

OBJECTIVE

Borderline personality disorder (BPD) with auditory hallucinations (AHs) may inadvertently be misdiagnosed with a primary psychotic disorder, such as schizophrenia (SZ). This misidentification can lead to challenges in providing effective psychological treatment. This review therefore aims to identify the phenomenological characteristics of AHs in BPD in comparison to SZ, as well as psychological interventions that explicitly target AHs in BPD.

METHODS

A systematic review was conducted to summarise the existing evidence base regarding the phenomenological similarities and differences of AHs in BPD and SZ, along with the identification of psychological interventions for AHs in BPD.

RESULTS

Eighteen studies were eligible for inclusion. Compared to the SZ group, BPD clients were characterised by more persistent and repetitive AHs, significantly more voice-related distress and appraisals of omnipotence, and an earlier age of onset of AHs. The BPD group also reported more severe depression and anxiety, a higher incidence of childhood trauma, and more negative self-schema. Cognitive Behaviour Therapy Coping Strategy Enhancement (CBT-CSE) might be a promising intervention to reduce AH-related distress in BPD, although further studies are required to determine its effectiveness.

CONCLUSION

In order to prevent misdiagnosis of AHs in BPD, the DSM-5 may need to acknowledge the broader and more frequent occurrence of psychosis symptoms in BPD clients. Such clarification may enhance diagnostic practices and facilitate more timely access to treatment. There is also a need to develop and trial psychological interventions that explicitly target AHs in BPD.

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.

Pathways from trauma to unusual perceptual experiences: Modelling the roles of insecure attachment, negative affect, emotion regulation and dissociation

BACKGROUND

A range of traumas have been linked to voices (auditory verbal hallucinations) and unusual perceptual experiences (UPEs) in other perceptual-sensory domains. Models of PTSD and positive symptoms of psychosis are insufficient in explaining the relationship between trauma and voices. The trauma-related voices (TRV) model was developed to generate novel research in this area.

AIMS

This study aimed to investigate pathways from trauma to the frequency of UPEs based on a subset of hypothesised relationships in the TRV model.

MATERIALS

The PTSD Diagnostic Scale for DSM-5, State Adult Attachment Measure, Depression Anxiety and Stress Scales-21, Perth Emotion and Regulation Competency Inventory, Dissociative Experiences Measure Oxford, and Multi-modality Unusual Perceptual Experiences Questionnaire.

METHODS

We used path analysis in a non-clinical sample (N = 528) to model indirect effects from diverse trauma experiences to the frequency of multi-sensory UPEs via a subset of mediators within the TRV model: insecure attachment, emotion regulation deficits, negative affect and dissociation.

RESULTS

Our model was an excellent fit to the data and accounted for 37.1% of variance in UPE frequency, and all direct (βs = .14-.61) and indirect pathways (βs = .01-.08) were significant (ps < .001).

DISCUSSION

Our findings suggest that insecure attachment may link diverse trauma experiences to emotion regulation deficits and negative affect, which are linked to UPE frequency via dissociation.

CONCLUSION

Our findings provide preliminary evidence for a subset of relationships within the TRV model. Future studies are needed to gather stronger evidence of temporality and causation between these factors, and to test broader pathways within the TRV model.

Voice hearers' explanations of trauma-related voices and processes of change throughout imagery rescripting: A qualitative exploration

OBJECTIVES

Post-traumatic stress is common among people who hear voices (auditory verbal hallucinations), many of whom hear trauma-related voices, whereby voice content is related to past trauma. Preliminary evidence suggests that imagery rescripting (ImRs) may more effectively reduce post-traumatic stress and voices compared to treatments that are based on existing models of PTSD or positive symptoms. No known studies have explored the potential maintaining factors of trauma-related voices in relation to ImRs. We aimed to uncover insights into the factors that maintain trauma-related voices and how ImRs may influence such factors by exploring voice hearers' explanations of voices and experiences of change throughout ImRs.

DESIGN

Thematic analytical methodology was used due to the study's critical epistemological framework.

METHODS

Semi-structured interviews explored relationships between trauma and voices, and experiences of change and stability throughout ImRs in a transdiagnostic sample (N = 10) who underwent 10-18 weekly ImRs sessions. Thematic analysis was used to develop themes.

RESULTS

Two themes captured explanations of voices, which suggested voices may have counterproductive protective functions. Three themes captured psychological experiences during ImRs, which reflected concepts such as freedom to experience emotions, and experiences of justice, closure and grieving. Three themes described the outcomes of ImRs, reflecting concepts such as increased confidence, coping, perceived safety and voices becoming less powerful.

CONCLUSIONS

Trauma-related voices may have underlying protective functions and ImRs may support emotional expression, adaptive trauma re-appraisals and improve self-worth and coping self-efficacy. These change processes may have clinical implications in ImRs and other treatments for trauma-affected voice hearers.

[Pilot study of Experience Focused Counselling by nurses with people who hear voices: Evaluation of the implementation of the study protocol]

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.

Effects and safety of virtual reality-based mindfulness in patients with psychosis: a randomized controlled pilot study

Virtual reality (VR) technology can be a supporting tool to enhance mindfulness. Recently, many research using VR-based mindfulness (VBM) has been carried out in various psychiatric disorders but not in psychosis. We investigated safety and effects of virtual reality-based mindfulness (VBM) in patients with psychosis as a pilot study. Sixty-four patients were randomly assigned to VBM or to VR control. For VBM, education and meditation videos were provided. For VR control, 3-dimensional natural scenes were shown. Both programs consisted of 8 weekly sessions, each lasting about 30 min. Pre- and post-assessments were performed using the experiences questionnaire (EQ), psychotic symptom rating scales-delusion (PSYRATS-D), PSYRATS-auditory hallucinations (AH), motivation and pleasure scale-self rating (MAP-SR) and etc. The safety questionnaire was also surveyed after 1st and 8th session. Physiological measures such as skin conductance level (SCL), heart rate (HR) and RR interval, were collected during the VR interventions. Limited individuals participated in the safety questionnaire and physiological measures. All the results were presented in mean and standard deviation. We did not observe significant results in group x time interaction and main effects of group and time in the decentering and clinical scales. However, within group comparison showed that patients randomized to VBM showed increased decentering (p = 0.029) and decreased amount (p = 0.032) and duration of preoccupation (p = 0.016) in the PSYRATS-D. For the feelings and motivations about close caring relationships of the MAP-SR, we observed a significant group x time interaction (p = 0.027). The frequency of VR sickness was high but its severity was mild. There were significant differences only in HR over time in the VBM group (p = 0.01). These results suggest that VBM was not more effective in reducing decentering and psychiatric symptoms than VR control but its adversity was modest.

The application of cognitive behavioral therapy in patients with schizophrenia: A review

The aim of this review is to explore the clinical nursing application of cognitive behavioral therapy (CBT) in patients with schizophrenia. A literature search was conducted using the CINAHL and MEDLINE databases. The database search occurred during the month of December 2022. This article comprehensively summarizes the theoretical basis of CBT in improving schizophrenia in clinical nursing, its application in managing symptoms and improving social function, as well as research progress in this field. There are still inconsistencies in the research results on CBT, but overall, psychological intervention combined with drug treatment is more effective than conventional treatment alone. If social function training can be added at the same time, it is believed that it will have better effects on clinical treatment and can maintain long-lasting effectiveness. Only in this way can patients truly understand and recognize the disease, improve treatment compliance, and ultimately achieve the goal of improving prognosis and quality of life.

The phenomenology of auditory verbal hallucinations in bipolar disorder

OBJECTIVES

At least one in four persons with bipolar disorder (BD) are estimated to have experienced auditory verbal hallucinations (AVH) or heard voices at some point. Yet few studies have investigated AVH in detail in this population. This preliminary study examined the phenomenology of AVH in BD to identify commonalities and differences relative to other psychiatric disorders where AVH are commonly reported.

METHOD

Twenty-one participants diagnosed with BD were recruited across two international sites in the UK and Australia. All participants underwent a structured clinical interview to verify psychiatric diagnosis and completed standardised measures of symptomatology, including mood states. Phenomenological information of AVH was gathered using select questions from the comprehensive Mental Health Research Institute Unusual Perceptual Schedule (MUPS).

RESULTS

AVH experienced by this BD sample were broadly similar in form and content to characterisations reported in the schizophrenia spectrum disorders (SSD) in prior literature, with some exceptions including frequency, duration and the changeability of tone and content.

CONCLUSIONS

The study highlights possibly subtle differences in the experience of AVH in BD, including the potential influence of mood congruence as a pertinent clinical feature. Further research into these differences might inform adaptations to existing AVH interventions to ensure they are relevant for BD.

Unsupervised Machine Learning Driven Analysis of Verbatims of Treatment-Resistant Schizophrenia Patients Having Followed Avatar Therapy

(1) Background: The therapeutic mechanisms underlying psychotherapeutic interventions for individuals with treatment-resistant schizophrenia are mostly unknown. One of these treatment techniques is avatar therapy (AT), in which the patient engages in immersive sessions while interacting with an avatar representing their primary persistent auditory verbal hallucination. The aim of this study was to conduct an unsupervised machine-learning analysis of verbatims of treatment-resistant schizophrenia patients that have followed AT. The second aim of the study was to compare the data clusters obtained from the unsupervised machine-learning analysis with previously conducted qualitative analysis. (2) Methods: A k-means algorithm was performed over the immersive-session verbatims of 18 patients suffering from treatment-resistant schizophrenia who followed AT to cluster interactions of the avatar and the patient. Data were pre-processed using vectorization and data reduction. (3): Results: Three clusters of interactions were identified for the avatar's interactions whereas four clusters were identified for the patient's interactions. (4) Conclusion: This study was the first attempt to conduct unsupervised machine learning on AT and provided a quantitative insight into the inner interactions that take place during immersive sessions. The use of unsupervised machine learning could yield a better understanding of the type of interactions that take place in AT and their clinical implications.

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.

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

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 perceptual experiences reported by individuals who not mentally unwell has long been recognized. Early scientific research on hallucinogen drugs such as lysergic acid diethylamide (LSD) was criticized and then withdrawn, but its recent revival offers new opportunities to examine the mechanism and 'process' of hallucinating. Many psychedelic compounds can elicit intense and realistic hallucinations. The study of hallucinogens conducted in carefully controlled and supervised settings and with individuals who are not mentally unwell opens exciting new possibilities. For example, it may be possible to study the temporal shifts in perceptual awareness, decode what influences the contents, affect, meaning, and appraisals of hallucinations and guide novel psychotherapy techniques and drug therapy.

Corpus linguistics and clinical psychology: Investigating personification in first-person accounts of voice-hearing

Triangulating corpus linguistic approaches with other (linguistic and non-linguistic) approaches enhances "both the rigour of corpus linguistics and its incorporation into all kinds of research" (McEnery & Hardie, 2012:227). Our study investigates an important area of mental health research: the experiences of those who hear voices that others cannot hear, and particularly the ways in which those voices are described as person-like. We apply corpus methods to augment the findings of a qualitative approach to 40 interviews with voice-hearers, whereby each interview was coded as involving 'minimal' or 'complex' personification of voices. Our analysis provides linguistic evidence in support of the qualitative coding of the interviews, but also goes beyond a binary approach by revealing different types and degrees of personification of voices, based on how they are referred to and described by voice-hearers. We relate these findings to concepts that inform therapeutic interventions in clinical psychology.

The impacts of the COVID-19 pandemic on treatment-resistant schizophrenia patients having followed virtual reality therapy or cognitive behavioural therapy: a content analysis

PURPOSE

The COVID-19 pandemic led to exacerbation of mental health symptoms and deterioration in psychological well-being in individuals suffering from schizophrenia. The primary objective of this study is to evaluate the impacts of the COVID-19 pandemic on patients suffering from treatment-resistant schizophrenia (TRS) with auditory verbal hallucinations (AVH) having undergone virtual reality therapy (VRT) or cognitive behavioural therapy (CBT) on their symptomatology. The secondary objective is to identify the differences and similarities in relation to the response to the COVID 19 pandemic between these two groups of patients.

METHODS

Qualitative analysis of semi-structured interviews was conducted with 42 patients suffering from TRS who had previously followed VRT or CBT. All interviews were recorded, transcribed, and analysed.

RESULTS

Four themes emerged in this study: Psychotherapeutic Interventions, Impact of COVID-19 and Public health and safety policies, Substance use and Psychiatric follow-up. Participants from both groups reported that their therapy was beneficial in controlling AVH. Patients having followed CBT reported more depressive symptoms whereas patients having followed VRT reported more anxious symptoms.

CONCLUSIONS

This study offers a first qualitative insight in patients suffering from TRS and the impacts of COVID-19 on them and opens the door to the protective factors of CBT and VRT for this specific population.

"Accept voices©" group intervention for the management of auditory verbal hallucinations-results at 6 and 12 months

"The Accept Voices© is a useful intervention for the management and acceptance of auditory verbal hallucinations in people with schizophrenia. This study aims at determining if the clinical effects remained at six- and 12-month follow-ups. Results show that participants (N = 22) maintained a decrease in auditory hallucinations, at the six and 12 months follow ups for severity and acceptance of Voices, anxiety and depression. Accept Voices© shows promise as a potential treatment for people with schizophrenia struggling with Voices.

Smartphone-assisted guided self-help cognitive behavioral therapy for young people with distressing voices (SmartVoices): study protocol for a randomized controlled trial

Background

The long-standing view that auditory verbal hallucinations (AVH) or hearing voices is a sign of schizophrenia has been challenged by research demonstrating that they lie on a continuum ranging from normal to pathological experience related to distress and need for care. Hearing voices is more prevalent in adolescence than in later life, and hearing voices during adolescence indicates a risk for severe psychopathology, functional impairments, and suicide later in life. While there is increasing evidence for the efficacy of cognitive behavioral therapy for voices (CBTv) in adults with schizophrenia, research on psychological treatments for youth with distressing voices has been scarce. The aim of the current study is to examine the efficacy of CBTv, delivered using smartphone-based Ecological Momentary Assessment Intervention (EMI) in a transdiagnostic sample of youth.

Methods

This is a superiority randomized controlled trial comparing 8 weeks of CBTv-based EMI in addition to treatment as usual (TAU) versus TAU only. TAU covers both no treatment and any form of psychiatric/psychological treatment. In the EMI condition, participants will be prompted twice a day to complete an EMA survey, and receive one intervention proposal per assessment. One-hundred fifty-four youth aged 14–25 years with distressing voices will be recruited from psychiatric clinics, local private practices, internet forums, and advertisements in print and social media. Before and after the intervention phase, participants will undergo a 9-day EMA. Single-blinded assessments will be conducted at baseline (T0) and at 3-month (T1) and 6-month (T2) follow-up. The primary outcome is the distress dimension of the Auditory Hallucinations subscale of the Psychotic Symptom Rating Scales at T1. Secondary outcomes include perceived hostile intention, power, and dominance of voices, passive, aggressive, and assertive relating to voices, and negative core beliefs about the self.

Discussion

Adolescence provides a crucial window of opportunity for early intervention for hearing voices. However, youth are notoriously reluctant help-seekers. This study offers a low-intensity psychological intervention for youth with distressing voices beyond diagnostic boundaries that, using a mobile technology approach, may match the treatment preferences of the generation of “digital natives.”

Trial registration

German Clinical Trials Register DRKS00026243. Registered on 2 September 2021

Supplementary Information

The online version contains supplementary material available at 10.1186/s13063-022-06846-0.

Different measures for auditory hallucinations in populations with psychosis. The Validation of the Spanish versions of the Auditory Vocal Hallucination Rating Scale (AVHRS) and the Positive and Useful Voices Inquiry (PUVI)

INTRODUCTION

An updated summary of the most used instruments assessing auditory hallucinations in population with psychosis, allows us to underline the scarceness and need of Spanish versions of important instruments. The aim of the study is to examine the psychometric characteristics of two different and complementary instruments for assessing auditory hallucinations, the Spanish version of the Auditory Vocal Hallucination Scale (AVHRS) and the Spanish version of the Positive and Useful Voices Inquiry (PUVI).

MATERIALS AND METHODS

A sample of 68 patients from four different centres, with a DSM-IV diagnosis of schizophrenia or schizoaffective disorder presenting with auditory hallucinations were included. Apart from the AVHRS and the PUVI, the Psychotic Symptom Rating Scales-Auditory Hallucinations subscale (PSYRATS-AH) and the Positive and Negative Syndrome Scale (PANSS) were also administered to all patients, plus an acceptability questionnaire.

RESULTS

The Spanish version of the AVHRS showed a good internal consistency, a moderate to high inter-rater reliability, a medium to moderate test-retest reliability, and a good convergent and discriminant validity. The Spanish version of the PUVI showed a good internal consistency and a heterogeneous, but in general moderate, test-retest reliability.

CONCLUSIONS

The Spanish versions of the AVHRS and the PUVI have good psychometric properties and are well accepted among patients.

The CHALLENGE trial: the effects of a virtual reality-assisted exposure therapy for persistent auditory hallucinations versus supportive counselling in people with psychosis: study protocol for a randomised clinical trial

Background

Many patients suffering from schizophrenia spectrum disorders continue having distressing auditory hallucinations in spite of treatment with antipsychotic medication. The aim of this trial is to examine the effect of a targeted virtual reality therapy for persistent auditory hallucinations in individuals with psychosis. The trial explores whether this type of therapy can decrease the severity, frequency and distress of auditory hallucinations and, additionally, whether it can reduce clinical symptoms and enhance daily functioning in individuals with psychosis.

Methods

The study is a randomised, assessor-blinded parallel-group superiority clinical trial, allocating a total of 266 patients to either the experimental intervention or supportive counselling. The participants will be randomised to either (1) seven sessions of virtual reality therapy or (2) seven sessions of supportive counselling to be delivered within the first 12 weeks after inclusion in the study. All participants will be assessed at baseline and 12 and 24 weeks post-baseline. Independent assessors blinded to the treatment allocation will evaluate the outcome. The primary outcome is the level of auditory hallucinations measured with the Psychotic Symptoms Rating Scales (PSYRATS-AH) total score at the cessation of treatment at 12 weeks. Secondary outcomes are frequency of auditory hallucinations, the distress caused by auditory hallucinations, perceived voice power, patient acceptance of voices, patients’ ability to respond to voices in an assertive way and social and daily function.

Discussion

Promising evidence of the efficacy of this immersive virtual reality-based therapy for auditory hallucinations exist, but evidence needs to be established in a large, methodological rigorous trial. If the therapy proves to be beneficial in reducing the severity of refractory auditory hallucinations, a large group of patients with schizophrenia and related disorders could be the target group of this short-term psychotherapeutic intervention.

Measuring the longitudinal course of voice hearing under psychological interventions: A systematic review

Trials of psychological interventions targeting distressing voices have used a range of variables to measure outcomes. This has complicated attempts to compare outcomes across trials and to evaluate the effectiveness of these interventions. Therefore, this review aimed to identify the variables that have been used to measure the longitudinal course and impact of voice hearing under these interventions and to evaluate how these variables change over time. Inclusion and exclusion criteria were applied, resulting in a total of 66 articles. Of these, 60 studies (28 RCTs, 23 uncontrolled, 9 non-randomised) were published in peer-reviewed journals, whilst 6 were recently completed or currently ongoing. The findings of this review suggest that a range of variables that are not directly relevant to psychological interventions have been used (e.g., depression, characteristics of voice hearing experience), whilst those directly impacted by psychological interventions (e.g., voice-related distress), broader concepts of outcome (e.g., functioning) and specific associated processes (e.g., self-schema) have received less attention. Findings also showed that the majority of variables demonstrated improvements, but effect sizes varied considerably across trials. This may be attributed to methodological differences such as statistical power, blinding, control groups and different methods of measurement. Our review highlights the importance of determining a set of outcomes that are directly targeted and should change under psychological interventions. Recommendations include the use of voice-related distress as a primary outcome. This can ultimately facilitate comparisons across studies and inform the development of psychological interventions.

Listening to and Believing Derogatory and Threatening Voices

BACKGROUND AND HYPOTHESIS

A plausible cause of distress for voice hearers is listening to and believing the threats and criticisms heard. Qualitative research indicates that patients have understandable reasons to listen. This study aimed to develop the understanding of distress using this listening and believing framework. Measures were developed of listening and believing voices and the reasons, and associations with distress tested.

STUDY DESIGN

A cross-sectional study of patients hearing derogatory and threatening voices (N = 591). Listening and Believing-Assessment and Listening and Believing-Reasons item pools were completed, and assessments of distress. Exploratory and confirmatory factor analyses and structural equation modeling (SEM) were conducted.

STUDY RESULTS

52% (n = 307) of participants believed their voices most or all the time. Listening and believing had 4 factors: active listening, passive listening, believing, and disregarding. Higher levels of believing, active listening, and particularly passive listening were associated with higher levels of anxiety, depression, and voice distress. Reasons for listening and believing formed 7 factors: to better understand the threat; being too worn down to resist; to learn something insightful; being alone with time to listen; voices trying to capture attention; voices sounding like real people; and voices sounding like known people. Each type of reason was associated with active listening, passive listening, and believing. SEM showed that feeling worn down in particular accounted for listening and believing. Test-retest reliability of measures was excellent.

CONCLUSIONS

A framework of listening and believing negative voices has the potential to inform the understanding and treatment of voice distress.

Clinical psychology referral for individuals with auditory verbal hallucinations and schizophrenia: Therapy engagement, hallucination severity and distress

OBJECTIVE

Test an intervention for people with schizophrenia and auditory verbal hallucinations at an acute inpatient unit (AIU) to engage with community therapy and reduce hallucination severity and associated distress. The trial cohort consisted of patients who after assessment by an AIU psychiatrist were not selected for an appointment with an AIU clinical psychologist and an opportunity for referral to a post-discharge community psychologist. An intervention providing the appointment and referral opportunity was compared to Treatment As Usual (TAU).

METHOD

A single-blind, randomised, control trial compared the intervention with TAU over 6-months post-discharge using Engagement in Community Therapy, Psychotic Symptom Rating Scale (PSYRATS) auditory hallucinations and Revised Beliefs About Voices (BAVQ-R) questionnaires.

RESULTS

Post-discharge community therapy engagement increased at 6 months compared to baseline in the intervention, TAU and combined groups. PSYRATS AHS and H-DIS scores decreased from baseline to last follow-up (statistically significant for TAU, and combined treatment groups). BAVQ-R RE scores decreased from baseline to last follow-up but the decrease was not statistically significant.

CONCLUSIONS

Most participants chose to engage with a community therapist despite not being initially assigned for referral by their psychiatrist and experiencing moderately severe symptoms.

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.

Feminine sexuality, religiousness and psychotic distress: Tracing a pattern

This paper describes a pattern regarding the relationship between feminine sexuality, religiousness and psychotic distress that was discerned in two independent multiple case studies in Greece. One study utilized grounded theory to develop a model of therapeutic change through recording the development of voice hearers’ understanding and coping with their voices during a therapeutic intervention. The other study applied biographical and thematic analysis to interviews with persons with psychosis and their families, in order to explore family narratives regarding life with a family member with psychosis. A common pattern was detected for all the female participants, whereby following a religious upbringing in childhood and pursuing independence from the family together with social and sexual exploration in early adulthood, the onset of psychosis marked a return to the family home and a religious frame of reference. The psychotic experiences seemed to resemble engrained experiences of shaming regarding sexual and gender norms. Moreover, they had the effect of re-signifying female identity and sexuality, bringing them into line with conservative religious principles. This pattern suggests that psychotic experiences may not only express culturally prescribed female gender norms but also may serve to regulate women’s sexuality in conservative religious cultural environments.

'Like jumping off a ledge into the water': A qualitative study of trauma-focussed imaginal exposure for hearing voices

OBJECTIVE

There is growing evidence of a link between the experience of hearing voices and past traumatic events, and trauma-focussed psychological interventions are being applied to hearing voices as an emerging treatment direction. To inform the ongoing development and implementation of this application, there is a need to understand clients' therapy experiences.

DESIGN

Qualitative study exploring the experience of people who received an intervention for voices linked to a previous traumatic event.

METHOD

Ten participants experiencing voices with some connection to a previous traumatic event participated in individual semi-structured interviews following six sessions of imaginal exposure, an exposure-based trauma-focussed intervention. Participant responses were analysed using thematic analysis.

RESULTS

Participants reported a range of benefits from the intervention, including improved mental health, reduction of distressing voice-hearing experiences, and increased clarity of the traumatic event. The therapy was perceived as distinctly different to previous therapy experiences, and participants noted that therapy could be intense and challenging, yet helpful later. Participants also reported that outside circumstances impacted on their progress in therapy and their voice-hearing experience.

CONCLUSIONS

The findings suggest that exposure-based trauma-focussed therapies may be beneficial for people who hear trauma-related voices. However, this intervention can be intense and clinicians and consumers need to consider the timing of delivery, and pay attention to internal and external resources that can increase participants' sense of safety.

PRACTITIONER POINTS

Imaginal exposure may be an effective intervention for people who hear voices that they perceive to be associated with a past traumatic event. Positive changes associated with the intervention may be highly variable between individuals, and encompass changes in sense of self, changes to internal states, and changes to voice-hearing experience. Imaginal exposure interventions may involve some temporary discomfort and symptom exacerbation, which may affect the acceptability of the intervention. This needs to be considered in both future research and clinical delivery.

Talk-based approaches to support people who are distressed by their experience of hearing voices: A scoping review

BACKGROUND

The positive effects of both antipsychotic medication and cognitive behavioral therapy in psychosis (CBTp) for people who are distressed by their experience of hearing voices remain limited. As a result, there has been a recent surge in talk-based individual approaches. Many of these continue not to be very well known nor implemented in practice. Some of the approaches may focus more on understanding and dealing constructively with voices, an element that has been identified as potentially helpful by voice hearers. Existing barriers to a wider implementation include both the widespread pathologization of hearing voices and a lack of mental health professionals who have been trained and trusted to carry out these new interventions.

METHODS

This scoping review aimed to identify and describe a current synthesis of talk-based individual approaches for people who hear voices, including studies independently of method of study or approach, diagnosis of voice hearers nor of the professional background of interventionists.

RESULTS

Nine different talk-based approaches were identified. These included: (1) Cognitive Behavioral Therapy for Psychosis (CBTp); (2) AVATAR therapy; (3) Making Sense of Voices (MsV) aka Experience Focused Counselling (EFC); (4) Relating Therapy; (5) Acceptance and Commitment Therapy; (6) Smartphone-based Coping-focused Intervention; (7) Prolonged and Virtual Reality Exposure Therapy; (8) Eye Movement Desensitization and Reprocessing, and (9) Individual Mindfulness-based Program for Voice Hearing. The different approaches differed greatly in relation to the number of sessions, length of time offered and the scientific evidence on efficacy. Psychologists represented the main professional group of interventionists. CBTp and the MsV/EFC approach also included health professionals, like nurses, as implementers. Most of the approaches showed positive outcomes in relation to voice related distress levels. None identified overall or voice specific deteriorations.

CONCLUSION

There appears to be a strong case for the implementation of a broader heterogeneity of approaches in practice. This would also be in line with recommendations for recovery focused services and requirements of voice hearers. A greater emphasis on whole systems implementation and thus the involvement of frontline staff, like nurses, in the delivery of these approaches would likely reduce the research-practice implementation gap.

Hallucinations and Other Psychotic Symptoms in Patients with Borderline Personality Disorder

BACKGROUND

Psychotic symptoms in BPD are not uncommon, and they are diverse and phenomenologically similar to those in schizophrenia spectrum disorders. Despite their prevalence in BPD patients, knowledge about the characteristics and severity of hallucinations is limited, especially in modalities other than auditory.

AIM

This review summarises the causes, phenomenology, severity, and treatment options of hallucinations and other psychotic symptoms in BPD.

METHODS

The PubMed database was used with the following key terms: "borderline personality disorder" and 'hallucinations' and "psychotic symptoms". Articles were selected between January 1990 and May 2021. The primary keyword search yielded a total of 545 papers, of which 102 articles met the inclusion criteria and were fully screened. Papers from the primary source reference lists were also screened, assessed for eligibility, and then added to the primary documents where appropriate (n = 143). After the relevance assessment, 102 papers were included in the review. We included adult and adolescent studies to gather more recent reviews on this topic.

RESULTS

Hallucinations are significantly prevalent in BPD, mainly auditory, similar to schizophrenia spectrum disorders. The relationship between hallucinations and depression, anxiety, suicidality, schizotypy, and loneliness in BPD has been discovered but requires more research. Studies for treatment options for hallucinations in BPD are lacking.

CONCLUSION

Recognition of psychotic symptoms in patients with BPD as distinguished psychopathological phenomena instead of diminishing and overlooking them is essential in the clinical assessment and can be useful in predicting complications during treatment. More focused research in this area is needed.

Insight-related beliefs and controllability appraisals contribute little to hallucinated voices: a transdiagnostic network analysis study

Hallucinated voices cause high levels of distress and disability. Current theories suggest that insight-related beliefs, about internal or external origin, perceived source location, and appraisals of controllability are important in mediating the impact of these experiences but previous findings have been mixed. We report two open code and open data network analytic studies of items in the Psychotic Symptoms Ratings Scale for auditory verbal hallucinations (PSYRATS-AH) in a large sample of patients with hallucinated voices to examine the network structure of items at (1) first assessment, and (2) differences over two consecutive assessments during a wait-list period. Networks were generated using least absolute shrinkage and selection operator (LASSO) and extended Bayesian information criterion (EBIC) with node predictability. In Study 1 (N = 386), we report that insight-related items made a negligible contribution to hallucinated voices and the controllability appraisal made at most a modest contribution. Items relating to distress and negative content were the most central and most predicted by the wider network. In Study 2 (N = 204), we tested the longitudinal stability of the structure of hallucinated voices over a period of several months, finding a small change in total hallucination score and global strength but no clear evidence for an alteration in the structural relationship. The insight-related and controllability items remained as least influential over time. Insight-related beliefs and controllability appraisals may contribute less than previously thought to distressing hallucinated voices although we do not discount that other appraisals may remain important.

L’amélioration de la qualité de vie chez les patients atteints d’une schizophrénie réfractaire ayant suivi la Thérapie assistée par la Réalité Virtuelle : une analyse de contenu

Objectifs La schizophrénie, en particulier la schizophrénie résistante aux traitements (SRT), est considérée comme l’un des troubles psychiatriques les plus invalidants en termes d’effets indésirables sur la qualité de vie (QV) des patients. La QV subjective est devenue une cible particulièrement cruciale qui devrait être améliorée avec le traitement, car une QV améliorée peut entraîner le rétablissement chez les patients atteints de schizophrénie. Il existe cependant peu de preuves des effets des interventions psychosociales recommandées sur les mesures non symptomatiques comme la QV. À cet égard, le traitement de la schizophrénie peut être renforcé si, en plus du traitement des symptômes, l’accent thérapeutique est mis sur d’autres sphères importantes pour les patients. Avec les progrès technologiques, la Thérapie assistée par la Réalité Virtuelle (TRV) permet aux entendeurs de voix d’entrer en dialogue direct avec un avatar, animé entièrement par le thérapeute, qui représente leur voix la plus persécutrice. Ceci dans le but de leur permettre d’acquérir un meilleur contrôle sur leurs voix et de travailler sur leur estime de soi. Au-delà de la symptomatologie, les résultats des projets pilotes sur cette thérapie innovante ont montré des résultats significatifs sur la QV.

Méthode Afin de peaufiner les résultats quantitatifs trouvés, cet article a exploré les thèmes émergents d’une analyse de contenu découlant du discours spontané de 10 patients ayant bien répondu à la TRV.

Résultats Quatre thèmes généraux ont émergé : 1) impact de la thérapie sur les voix ; 2) relations interpersonnelles ; 3) bien-être psychologique ; et 4) mode de vie. Cette analyse de contenu a permis d’identifier plusieurs sphères de vie qui sont davantage améliorées chez les patients ayant une SRT à l’aide de la TRV.

Conclusion : La TRV met en évidence l’avenir des approches adaptées aux objectifs des patients qui intègrent plusieurs processus pertinents pour potentiellement améliorer leur QV. La TRV peut avoir des implications potentiellement immenses sur la santé et la qualité de vie des patients. Cette étude fut une première étape vers l’exploration des effets subjectifs de la TRV sur la vie des patients au-delà des symptômes.

The role of self-compassion on the relationship between trauma and hearing voices

Traumatic life events are associated with increased risk of hearing voices and posttraumatic stress (PTS) symptoms have been implicated in this relationship. Studies indicate that increased self-compassion is associated with reduced PTS symptoms and voice-distress. The present study sought to examine whether self-compassion moderated the relationship between PTS symptoms and voice-distress. Self-report and clinician-administered questionnaires were used to measure self-compassion, PTS symptom severity, voice-frequency, and voice-distress in 62 trauma-affected voice-hearers who presented to a community voice-hearing clinic. Correlation analyses revealed that PTS symptom severity was positively correlated with voice-distress, but not voice-frequency, and that self-compassion was negatively correlated with voice-distress and PTS symptom severity. While self-compassion did not moderate the relationship between PTS symptom severity and voice-distress, it was associated with a significant reduction in voice-distress, at all levels of PTS symptom severity. Preliminary findings suggest self-compassion may play an important role in reducing voice-distress and thus warrant further consideration of self-compassion as a target in treatment for help-seeking voice-hearers.

The impact of auditory hallucinations on "living well" with dementia: Findings from the IDEAL programme

OBJECTIVE

To determine whether auditory hallucinations in community-dwelling people with dementia (PwD) living in the community impacted on quality of life (QoL), subjective wellbeing and life satisfaction.

DESIGN

Cross-sectional cohort study.

SETTINGS AND PARTICIPANTS

1251 community-dwelling PwD and caregivers were included in this study.

MEASURES

Neuropsychiatric Inventory Questionnaire completed by caregiver interview. Mean differences between the absence and presence of auditory hallucinations were compared to scores on three validated measures of living well: QoL in Alzheimer's disease scale (QoL-AD), World Health Organization-Five Well-being Index and Satisfaction with Life Scale. Analysis of covariance determined the confounding contributions of cognition via Mini-Mental State Examination, depression via Geriatric Depression Scale-10, caregiver stress via Relative Stress Scale and whether antipsychotic drugs were prescribed.

RESULTS

Auditory hallucinations were associated with lower scores for QoL (p < 0.001, η²  = 0.01), wellbeing (p < 0.001, η²  = 0.02) and life satisfaction (p < 0.001, η²  = 0.01). After controlling for background measures, which were potential confounds, the relationship between auditory hallucinations and QoL (p = 0.04, pη²  = 0.01) and wellbeing (p < 0.000, pη²  = 0.02) remained significant but there was no significant association with life satisfaction.

CONCLUSION

Auditory hallucinations are associated with lower QoL and wellbeing in PwD living in the community. This has implications for targeted therapies in PwD with psychotic symptoms.

A Proposed Probabilistic Method for Distinguishing Between Delusions and Other Environmental Judgements, With Applications to Psychotherapy

How can individuals with schizophrenia best be equipped to distinguish delusions from accurate judgements about their environment? This study presents an approach based on the principles of Bayesian probability and presents the results of a series of tests in which a simulated observer classifies randomly generated data characteristic of a simulated environment. The complexity of the data ranges from scalars to vectors of variable lengths, and the simulated observer makes its decisions based on either perfect or imperfect models of its environment. We find that when a low-dimensional observation is considered characteristic of both real observations and delusions, the prior probabilities of any observation being real or fake are of greater importance to the final decision than the attributes of the observation. However, when an observation is high-dimensional (complex), classification accuracy tends to improve toward 100% with increasing complexity of observations, as long as the patient's model of the world isn't drastically inaccurate. On the contrary, when the observer's model is sufficiently inaccurate, the accuracy rate decreases with increasing observational complexity. Overall, the results suggest applicability of the Bayesian model to the use of interventional therapy for those who suffer from psychosis.

Altered Peripersonal Space and the Bodily Self in Schizophrenia: A Virtual Reality Study

Self-disturbances such as an anomalous perception of one's own body boundary are central to the phenomenology of schizophrenia (SZ), but measuring the spatial parameters of the hypothesized self-other boundary has proved to be challenging. Peripersonal space (PPS) refers to the immediate zone surrounding the body where the self interacts physically with the environment; the space that corresponds to hypothesized self-other boundary. PPS is represented by enhanced multisensory integration and faster reaction time (RT) for objects near the body. Thus, multisensory RT tasks can be used to estimate self-other boundary. We aimed to quantify PPS in SZ using an immersive virtual reality visuotactile RT paradigm. Twenty-four participants with SZ and 24 demographically matched controls (CO) were asked to detect tactile vibration while watching a ball approaching them, thrown by either a machine (nonsocial condition) or an avatar (social condition). Parameters of PPS were estimated from the midpoint of the spatial range where the tactile RT decreased most rapidly (size) and the gradient of the RT change at this midpoint (slope). Overall, PPS was smaller in participants with SZ compared with CO. PPS slope for participants with SZ was shallower than CO in the social but not in nonsocial condition, indicating an increased uncertainty of self-other boundary across an extended zone in SZ. Social condition also increased false alarms for tactile detection in SZ. Clinical symptoms were not clearly associated with PPS parameters. These findings suggest the context-dependent nature of weakened body boundary in SZ and underscore the importance of reconciliating objective and subjective aspects of self-disturbances.

Efficacy and durability of cognitive behavior therapy in managing hallucination in patients with schizophrenia

BACKGROUND

The cognitive behavior therapy (CBT) approach to psychosis is a relatively recent development and focuses directly on the core psychotic symptoms of hallucinations and delusions.

AIM

The aim of this study is to assess the efficacy of cognitive behavior therapy in managing hallucination in patients with schizophrenia and to evaluate the generalizability and durability of the therapeutic gains.

MATERIALS AND METHODS

In this confirmatory pre-post assessment study, based on the purposive sampling technique, a sample consisting of 40 (20 for experimental and the other 20 for control group) patients having schizophrenia with core symptoms of hallucination and delusions under treatment as usual were selected and matched on the sociodemographic and clinical variables. For the clinical variables, the Psychotic Symptom Rating Scale and Scale for the Assessment of Positive Symptoms were used. After baseline assessment, the cognitive behavioral program was tailored on the experimental group and patients of both the group were reassessed after the completion of treatment. Follow-up data to see the durability of program were taken from all the patients of experimental and control groups.

RESULTS

Cognitive behavior therapy was found to be effective for the treatment of auditory hallucination in schizophrenia. The therapeutic gains in all study variables were found to be maintained or further improving at follow-up which proves that cognitive behavior therapy is durable.

CONCLUSION

Cognitive behavior therapy in conjunction with pharmacotherapy was found to be more effective in improving clinical symptoms of schizophrenia and global functioning compared to pharmacotherapy alone.

Relating behaviours and therapeutic actions during AVATAR therapy dialogue: An observational study

OBJECTIVES

AVATAR therapy is a novel relational approach to working with distressing voices by engaging individuals in direct dialogue with a digital representation of their persecutory voice (the avatar). Critical to this approach is the avatar transition from abusive to conciliatory during the course of therapy. To date, no observational study has examined the moment-to-moment dialogical exchanges of this innovative therapy. We aim to (1) map relating behaviours between participants and their created avatars and (2) examine therapeutic actions delivered within AVATAR dialogue.

METHOD

Twenty-five of the fifty-three AVATAR therapy completers were randomly selected from a randomized controlled trial (Craig et al. The Lancet Psychiatry, 5, 2018 and 31). Seventy-five audio recordings of active dialogue from sessions 1 and 4 and the last session were transcribed and analysed using a newly developed coding frame. Inter-rater reliability was good to excellent.

RESULTS

Fine-grained analysis of 4,642 observations revealed nuanced communication around relational power and therapeutic activity. Early assertiveness work, reinforced by the therapist, focussed on increasing power and distancing. Participants' submissive behaviours reduced during therapy, but the shift was gradual. Once the transition to a more conciliatory tone took place, the dialogue primarily involved direct communication between participant and avatar, focussing on sense of self and developmental and relational understanding of voices.

CONCLUSIONS

AVATAR therapy supports voice-hearers in becoming more assertive towards a digital representation of their abusive voice. Direct dialogue with carefully characterized avatars aims to build the voice-hearers' positive sense of self, supporting the person to make sense of their experiences.

PRACTITIONER POINTS

AVATAR therapy enables voice-hearers to engage in face-to-face dialogue with a digital representation ('avatar') of their persecutory voice. Fine-grained analyses showed how relating behaviours and therapeutic actions evolve during active AVATAR therapy dialogue. Carefully characterized avatars and direct therapist input help voice-hearers become more assertive over the avatar, enhance positive sense of self, and support individuals to make sense of their experiences.

Trauma-focused imaginal exposure for auditory hallucinations: A case series

OBJECTIVE

There is mounting evidence that traumatic life events play a role in auditory hallucinations (AH). Theory suggests that some AH are decontextualized trauma memory intrusions. Exposure-based trauma-focused therapies that target trauma memory intrusions may therefore be a promising new treatment. We aimed to assess the feasibility and acceptability of a standard protocol trauma-focused imaginal exposure intervention for trauma-related AH and to provide initial proof of concept regarding potential effects on AH.

DESIGN

We conducted a single-arm case series of a six session (90 min per session) imaginal exposure intervention for trauma-related AH with assessments at baseline, post-therapy, and one-month follow-up.

RESULTS

Fifteen people were recruited and eligible to start the intervention. Participants reported high levels of satisfaction; however, temporary distress and symptom exacerbation were common and contributed to discontinuation. There was a large reduction in AH severity at one-month follow-up (adjusted d = 0.99), but individual response was highly variable. There were also large reductions in post-traumatic stress disorder symptoms and the intrusiveness of the trauma memory.

CONCLUSIONS

Imaginal exposure for trauma-related AH is generally acceptable and may have large effects on AH severity for some people. However, temporary distress and symptom exacerbation are common and can lead to discontinuation. Low referral rates and uptake also suggest feasibility issues for standalone imaginal exposure for AH. The intervention may be more feasible and acceptable in the context of a broader trauma-focused therapy. Well-powered trials are needed to determine efficacy and factors that impact on acceptability and therapy response.

PRACTITIONER POINTS

Some AH can be understood as trauma memory intrusions that lack temporal and spatial contextualization and are therefore experienced without autonoetic awareness. Imaginal exposure to trauma memories associated with AH may be an effective intervention for some people. Temporary distress and symptom exacerbation may be common when using standard trauma-focused imaginal exposure for AH. This can impact on the acceptability of the therapy and should be considered in future development and delivery.

Understanding the role of self in auditory verbal hallucinations using a self-discrepancy paradigm

OBJECTIVE

Negative auditory verbal hallucination (AVH) content is a major predictor of distress and typically occurs more frequently than positive or neutral content. Recent research has found that negative views of self are associated with the negative content of AVHs. However, research investigating the role of self in AVH content is in its infancy and warrants further study.

DESIGN

The current study examined correspondence between negative voice content and internalized representations of self, using a self-discrepancy paradigm incorporating multiple domains of self (ideal, ought, and feared). It also considered the impact of depression and anxiety.

METHOD

An adapted self-discrepancy questionnaire was administered to a transdiagnostic clinical sample of 86 current voice-hearers. Participants rated how similar they believed themselves to be (actual self), and how similar their voices would say they are (voice self), to their ideal, ought, and feared self-concepts.

RESULTS

Voice content was related to how the person viewed themselves in relation to their ideal, ought, and feared self-concepts. Additionally, voices reflected negative feared self-concepts, particularly in people with anxiety.

CONCLUSIONS

These findings provide further insight into the phenomenon of hearing voices and have the potential to change the way we approach formulation and treatment of AVHs. In particular, treatment approaches that reduce discrepancies between how one views themselves and their positive and negative self-concepts, or alter the relationship one has with their self-concepts and negative voices, have the potential to reduce the impact of distressing voices.

PRACTITIONER POINTS

Voice experiences can be meaningfully related to how the person views themselves in relation to concepts of their ideal, ought, and feared selves Negative voice content might be understood as reflecting discrepancies from these self-representations, which may have a self-regulatory function in relation to goal-directed behaviour. Identifying how voice content relates to self could be useful in not only challenging the extent of perceived self-discrepancies, but also considering how to enact valued parts of self.

Help, I can't help: A qualitative study of psychiatric nurse's perspectives on their care for people who hear voices

WHAT IS KNOWN ABOUT THE SUBJECT?: There are no studies on the perceptions of psychiatric nurses on interventions they provided to people hearing voices while in an acute psychiatric unit in Ireland. There are three studies focussed on psychiatric nurses' experiences of caring for people that hear voices, two based in England and one based in Australia. Only two of these studies is focussed on nurses working in an acute psychiatric unit. WHAT IS THIS PAPER ADDS TO EXISTING KNOWLEDGE?: This study used semi-structured interviews to explore perceptions of psychiatric nurses in the Republic of Ireland on interventions they provided people hearing voices while in an acute psychiatric unit. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Further quantitative and qualitative research into the nursing practice for people experiencing auditory hallucinations, in both in-patient and community settings. Follow up supports and supervision after the completion training programmes should be implemented, to ensure the transition of skills and knowledge to the clinical environment. Further investigation into whether or not psychiatric nurses are well prepared for the developments outlined in national polices. ABSTRACT: Aims and Objectives To explore the perspectives and experiences of Irish psychiatric nurses working in acute care in regard to their role in addressing hearing voices in the people in their care, with a view to gain insight in the nurses' personal experiences, interventions they provide, attitudes, knowledge, facilitating factors and challenges. Background Treatment of auditory hallucinations often takes place in acute psychiatric care. Traditionally treatment was focused on medication, but this is no longer the sole approach, with psychosocial interventions gaining ground. Psychiatric nurses have the potential to provide these interventions. As part of the changing emphasis of mental health care in Ireland towards more responsibilities for psychiatric nurses, there is a need to establish whether psychiatric nurses are prepared to take up these added responsibilities. Design A qualitative study, comprising of semi-structured interviews (n = 16). Results Four themes emerged through thematic analysis. These included (a) the importance of therapeutic relationships; (b) reservations about the emphasis on medication; (c) limitations to interventions; and (d) the lack of focus/structure of interventions. Conclusions The use of systematic psychosocial interventions for people who hear voices is not well supported in the acute psychiatric settings the psychiatric nurses in the study worked in.

Moment-to-moment dynamics between auditory verbal hallucinations and negative affect and the role of beliefs about voices

BACKGROUND

Negative affect (NA) has been suggested to be both an antecedent and a consequence of auditory verbal hallucinations (AVH). Furthermore, negative appraisals of voices have been theorized to contribute to the maintenance of AVH. Using the experience sampling method (ESM), this study examined the bi-directional relationship between NA and AVH, and the moderating effect of negative beliefs about voices.

METHODS

Forty-seven patients diagnosed with schizophrenia spectrum disorders with frequent AVH completed a clinical interview, followed by ESM for 10 times a day over 6 days on an electronic device. Time-lagged analyses were conducted using multilevel regression modeling. Beliefs about voices were assessed at baseline.

RESULTS

A total of 1654 data points were obtained. NA predicted an increase in AVH in the subsequent moment, and AVH predicted an increase in NA in the subsequent moment. Baseline beliefs about voices as malevolent and omnipotent significantly strengthened the association between NA and AVH within the same moment. In addition, the belief of omnipotence was associated with more hallucinatory experiences in the moment following NA. However, beliefs about voices were not associated directly with momentary levels of NA or AVH.

CONCLUSIONS

Experiences of NA and AVH drove each other, forming a feedback loop that maintained the voices. The associations between NA and AVH, either within the same moment or across moments, were exacerbated by negative beliefs about voices. Our results suggest that affect-improving interventions may stop the feedback loop and reduce AVH frequency.

One-year randomized trial comparing virtual reality-assisted therapy to cognitive-behavioral therapy for patients with treatment-resistant schizophrenia

The gold-standard cognitive-behavioral therapy (CBT) for psychosis offers at best modest effects. With advances in technology, virtual reality (VR) therapies for auditory verbal hallucinations (AVH), such as AVATAR therapy (AT) and VR-assisted therapy (VRT), are amid a new wave of relational approaches that may heighten effects. Prior trials have shown greater effects of these therapies on AVH up to a 24-week follow-up. However, no trial has compared them to a recommended active treatment with a 1-year follow-up. We performed a pilot randomized comparative trial evaluating the short- and long-term efficacy of VRT over CBT for patients with treatment-resistant schizophrenia. Patients were randomized to VRT (n = 37) or CBT (n = 37). Clinical assessments were administered before and after each intervention and at follow-up periods up to 12 months. Between and within-group changes in psychiatric symptoms were assessed using linear mixed-effects models. Short-term findings showed that both interventions produced significant improvements in AVH severity and depressive symptoms. Although results did not show a statistically significant superiority of VRT over CBT for AVH, VRT did achieve larger effects particularly on overall AVH (d = 1.080 for VRT and d = 0.555 for CBT). Furthermore, results suggested a superiority of VRT over CBT on affective symptoms. VRT also showed significant results on persecutory beliefs and quality of life. Effects were maintained up to the 1-year follow-up. VRT highlights the future of patient-tailored approaches that may show benefits over generic CBT for voices. A fully powered single-blind randomized controlled trial comparing VRT to CBT is underway.

Validation of the Hamilton Program for Schizophrenia Voices Questionnaire: Associations with emotional distress and wellbeing, and invariance across diagnosis and sex

BACKGROUND

Voice-hearing is a transdiagnostic experience with evident negative effects on patients. Good quality measurement is needed to further elucidate the nature, impact and treatment of voice-hearing experiences across patient groups. The Hamilton Program for Schizophrenia Voices Questionnaire (HPSVQ) is a brief self-report measure which requires further psychometric evaluation.

METHODS

Using data from a transdiagnostic sample of 401 adult UK patients, the fit of a conceptual HPSVQ measurement model, proposing a separation between physical and emotional voice-hearing characteristics, was tested. A structural model was examined to test associations between voice-hearing, general emotional distress (depression, anxiety, stress) and wellbeing. The invariance of model parameters was examined across diagnosis and sex.

RESULTS

The final measurement model comprised two factors named 'voice severity' and 'voice-related distress'. The former comprised mainly physical voice characteristics and the latter mainly distress and other negative impacts. Structural model results supported voice-related distress as mediating the associations between voice severity and emotional distress and wellbeing. Model parameters were invariant across psychosis versus non-psychosis diagnosis and partially invariant across sex. Females experienced more severe and distressing voices and a more direct association between voice severity and general anxiety was evident.

CONCLUSIONS

The HPSVQ is a useful self-report measure of voice-hearing with some scope for further exploration and refinement. Voice-related distress appears a key mechanism by which voice severity predicts general distress and wellbeing. Whilst our data broadly support interventions targeting voice-related distress for all patients, females may benefit especially from interventions targeting voice severity and strategies for responding.

Can Gender Differences in Distress Due to Difficult Voices Be Explained by Differences in Relating?

Background

Research on gender differences has found that women relate to negative voice hearing experiences with more negative emotions and report more distress due to voices, which may be rooted in differences in relating to voices. This study used a robust methodology and a large sample to explore gender differences in relating to voices and voice distress.

Methods

Matched samples of male (n = 124) and female (n = 124) voice hearers were drawn from a survey for secondary analysis. Voice severity (e.g., frequency or loudness), voice distress, and different types of dysfunctional (i.e., passive or aggressive) and functional (assertive) relating were measured. Group comparisons, mediation models, and network analyses were calculated.

Results

Female voice hearers reported more severe voices, more voice distress, more passive, and less assertive relating. Mediation and network analyses yielded evidence for pathways from gender to voice distress via relating and via differences in voice severity.

Conclusion

Gender differences in the emotional impact of voices can be partially explained by relating behavior. Psychological interventions for voice hearing could be optimized by exploring the influence of gender in the emergence of distressing voices. Nevertheless, gender differences need to be treated as one of several different possible mechanisms when working with individual patients.

Externalizing the threat from within: A new direction for researching associations between suicide and psychotic experiences

A recent suicidal drive hypothesis posits that psychotic experiences (PEs) may serve to externalize internally generated and self-directed threat (i.e., self-injurious/suicidal behavior [SIB]) in order to optimize survival; however, it must first be demonstrated that such internal threat can both precede and inform PEs. The current study conducted the first known bidirectional analysis of SIB and PEs to test whether SIB could be considered as a plausible antecedent for PEs. Prospective data were utilized from the Environmental Risk (E-Risk) Longitudinal Twin Study, a nationally representative birth cohort of 2232 twins, that captured SIB (any self-harm or suicidal attempt) and PEs at ages 12 and 18 years. Cross-lagged panel models demonstrated that the association between SIB at age 12 and PEs at age 18 was as strong as the association between PEs at age 12 and SIB at age 18. Indeed, the best representation of the data was a model where these paths were constrained to be equal (OR = 2.48, 95% CI = 1.63-3.79). Clinical interview case notes for those who reported both SIB and PEs at age 18, revealed that PEs were explicitly characterized by SIB/threat/death-related content for 39% of cases. These findings justify further investigation of the suicidal drive hypothesis.