Immersive virtual reality in the treatment of auditory hallucinations: A PRISMA scoping review.

BACKGROUND: A large group of psychiatric patients suffer from auditory hallucinations (AH) despite relevant treatment regimens. In mental health populations, AH tend to be verbal (AVH) and the content critical or abusive. Trials employing immersive virtual reality (VR) to treat mental health disorders are emerging. OBJECTIVE: The aim of this scoping review is to provide an overview of clinical trials utilizing VR in the treatment of AH and to document knowledge gaps in the literature. METHODS: PubMed, Cochrane Library, and Embase were searched for studies reporting on the use of VR to target AH. RESULTS: 16 papers were included in this PRISMA scoping review (ScR). In most studies VR therapy (VRT) was employed to ameliorate treatment resistant AVH in schizophrenia spectrum disorders. Only two studies included patients with a diagnosis of affective disorders. The VRT was carried out with the use of an avatar to represent the patient's most dominant voice. DISCUSSION: The research field employing VR to treat AH is promising but still in its infancy. Results from larger randomized clinical trials are needed to establish substantial evidence of therapy effectiveness. Additionally, the knowledge base would benefit from more profound qualitative data exploring views of patients and therapists.

Time to put aside the false dichotomy between personality disorders and psychotic symptoms.

Unlike internalizing and externalizing symptoms, psychotic symptoms (e.g., hallucinations, delusions) are manifestations of personality disorders (PDs) that are more controversial and poorly understood. This leaves clinicians with very little guidance for clinical practice, especially for diagnosis. What is more, most reviews have focused strictly on the links between psychotic symptoms and the categorically defined borderline PD, which contrasts with the growing movement that emphasizes a dimensional perspective (especially in psychology). Thus, the objectives of this critical review will be to (a) expose typical cases where PDs and psychotic symptoms might cooccur; (b) assess the state of scientific knowledge surrounding PD and psychotic symptoms; and (c) provide clinicians and researchers with recommendations to keep the field moving forward. We conclude that researchers and clinicians should move past the false "PD or psychosis" dichotomy since they often cooccur, avoid (as far as possible) making psychotic symptoms an exclusion criterion in PD research to enhance ecological validity, and consider dimensional PD diagnosis as a potential unifying solution to the dilemma posed by this cooccurrence.

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.

Casting shadows of perception: An exploration of visual hallucinations.

ABSTRACT: Hallucinations can be caused by biological, psychological, neurological, ophthalmological, and environmental factors. This article discusses a selection of the various conditions that can present with visual disturbances and hallucinations including schizophrenia, HIV, neurosyphilis, hyperammonemia, migraine, substance use, brain tumors, sleep disturbances, thyroid disorders, delirium, ophthalmologic conditions, and Lewy body dementia, providing an overview of the differential diagnosis of visual hallucinations. The mechanisms by which these conditions can lead to hallucinations are also discussed, and insight into the recommended medical workup for each is provided.

The 'L-factor': Language as a transdiagnostic dimension in psychopathology.

Thoughts and moods constituting our mental life incessantly change. When the steady flow of this dynamics diverges in clinical directions, the possible pathways involved are captured through discrete diagnostic labels. Yet a single vulnerable neurocognitive system may be causally involved in psychopathological deviations transdiagnostically. We argue that language viewed as integrating cortical functions is the best current candidate, whose forms of breakdown along its different dimensions are then manifest as symptoms - from prosodic abnormalities and rumination in depression to distortions of speech perception in verbal hallucinations, distortions of meaning and content in delusions, or disorganized speech in formal thought disorder. Spontaneous connected speech provides continuous objective readouts generating a highly accessible bio-behavioral marker with the potential of revolutionizing neuropsychological measurement. This argument turns language into a transdiagnostic 'L-factor' providing an analytical and mechanistic substrate for previously proposed latent general factors of psychopathology ('p-factor') and cognitive functioning ('c-factor'). Together with immense practical opportunities afforded by rapidly advancing natural language processing (NLP) technologies and abundantly available data, this suggests a new era of translational clinical psychiatry, in which both psychopathology and language may be rethought together.

Presenilin Gene Mutation-associated Psychosis: Phenotypic Characteristics and Clinical Implications.

Although psychotic symptoms have been described in association with rare presenilin ( PSEN ) gene mutations underlying early-onset Alzheimer disease (AD), no contemporary reviews on this topic exist. The purpose of this review is to characterize the psychiatric phenotype (specifically with respect to psychosis) of PSEN1 and PSEN2 variant-associated AD. A PubMed search was completed in July 2023. Only articles that described individuals harboring a PSEN1 or PSEN2 mutation who experienced symptoms of psychosis were included in the review. Thirty-three articles describing 52 individuals were included in the review, as well as one other study that provided limited information pertaining to an additional 21 cases. While visual hallucinations were the most common psychotic symptom, followed by persecutory delusions, auditory hallucinations occurred in ~17% of individuals. In ~33% of the reviewed cases psychotic symptoms were present at or near disease onset, and 9 of these individuals experienced auditory hallucinations and/or delusions in the absence of visual hallucinations (~17% of all cases). In many cases, symptoms developed at a relatively young age. As presenilin gene variant-associated psychosis may resemble a primary psychotic disorder, clinicians should be vigilant with respect to screening for signs/symptoms suggestive of neurodegeneration in first-episode psychosis.

Representation of Voice Hearing Groups by French Mental Health Professionals.

Hearing voices groups (HVGs) are an alternative way of treating acoustic-verbal hallucinations. Although they have been developing in France for the last decade, they have lagged behind their international expansion. The representations that circulate about their functioning and their effects are likely to influence the referral to these groups by mental health professionals. We created and used a questionnaire to survey mental health professionals' representations of voice hearing groups. We surveyed 79 French health professionals using a questionnaire with 19 closed items. 7 additional items allowed us to specify the professional status and familiarity of the participants with the HVGs. Professionals generally shared positive representations of HVGs but had very approximate knowledge of them. The subgroup of the most familiar professionals (N = 45) differed significantly on 7 items from the subgroup of non-familiars (N = 35). HVGs are represented as one medical offer among others, of little clinical use and indicated only for psychotic voice-hearing patients, which seems to be a misunderstanding in every case. However, our study also shows that these opinions evolve with the degree of familiarity with HVGs. Certain representations need to be corrected so that quality information can be circulated about HVGs and improve their integration into their ecosystem.

Explanatory power by vagueness. Challenges to the strong prior hypothesis on hallucinations exemplified by the Charles-Bonnet-Syndrome.

Predictive processing models are often ascribed a certain generality in conceptually unifying the relationships between perception, action, and cognition or the potential to posit a 'grand unified theory' of the mind. The limitations of this unification can be seen when these models are applied to specific cognitive phenomena or phenomenal consciousness. Our article discusses these shortcomings for predictive processing models of hallucinations by the example of the Charles-Bonnet-Syndrome. This case study shows that the current predictive processing account omits essential characteristics of stimulus-independent perception in general, which has critical phenomenological implications. We argue that the most popular predictive processing model of hallucinatory conditions - the strong prior hypothesis - fails to fully account for the characteristics of nonveridical perceptual experiences associated with Charles-Bonnet-Syndrome. To fill this explanatory gap, we propose that the strong prior hypothesis needs to include reality monitoring to apply to more than just veridical percepts.

[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.

Characteristics of Recurrent Visions of the Nonphysical World Among Cognitively Unimpaired Elders of the Ojibwe Tribal Nation.

Importance: Visual hallucinations are a core feature of dementia with Lewy bodies and primary psychiatric disease, yet identification of a hallucination vs normal spiritual experience depends on cultural context. Almost no information exists in the medical literature regarding normal spiritual experiences in American Indian participants in the context of a neurocognitive evaluation. Objective: To assess the characteristics of a normal spiritual experience in an Ojibwe Tribal Nation. Design, Setting, and Participants: This prospective, cross-sectional study was conducted between August 1, 2021, and August 31, 2022, among an Ojibwe Tribal Nation in northern Minnesota. Participants were evaluated at their tribal nation clinic. Cognitively unimpaired tribal Elders who were enrolled members of the tribal nation and aged 55 years or older were invited to participate via fliers, radio advertisements, and health fair presentations. Thirty-seven tribal Elders volunteered. Main Outcomes and Measures: Each participant was asked whether they experienced hallucinations or visions of people, animals, or objects that are not part of the physical world. This was an a priori formulated question and part of a comprehensive neurocognitive evaluation consisting of history and physical examination (including cognitive screening with a subspecialty-trained behavioral neurologist); blood tests for metabolic, nutritional, and thyroid conditions; and noncontrast magnetic resonance imaging brain scan. Four patients were excluded from the present analysis due to having mild cognitive impairment or dementia. Results: Thirty-three cognitively unimpaired tribal Elders (mean [SD] age, 66.0 [7.5] years; 22 women [67%]) were included. Sixteen (48%) answered affirmatively, reporting recurrent visions of the nonphysical world. Generally, these visions were well formed, benevolent in nature, and transient; started in preadolescence; involved spirits or ancestors; and were congruent with cultural and spiritual beliefs of the Ojibwe people. No patients had accompanying dream enactment behavior, dysautonomia, parkinsonism, sleep transition-related hallucinations, or moderate to severe depression to suggest a prodrome of an α-synucleinopathy, hypnopompic or hypnagogic hallucinations, or psychosis. Conclusions and Relevance: Although based on only 1 Ojibwe Tribal Nation, this study suggests that formed visions of the nonphysical world are common among cognitively healthy Ojibwe individuals and can represent normal spiritual experiences. Clinicians would benefit from careful consideration of cultural or spiritual context to avoid misdiagnosis of neuropsychiatric disease.

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).

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.

Who is afraid of Hermy and Jimmy? Relating to and normalizing psychosis through theater.

OBJECTIVE: Psychotic experiences, such as hearing voices that others do not hear, being afraid of threats that others do not perceive, or believing in ideas that others find implausible can be confusing for those who face them and challenging to relate to for those who do not, leading to alienation and social exclusion. The objective of this article is to discuss how immersion in theater can enhance our understanding of human nature and facilitate a social environment that supports the recovery of individuals with psychosis. METHODS: Drawing on theories of the psychology of art and narrative psychology, this conceptual article discusses a theatrical production, a play, titled "Voices," created by a person with lived experience of voice hearing. We apply Semenov's model of art as a social psychological system as a guiding framework to focus on the roles of the art product, artist-author, artist-performer, and recipient. RESULTS: Theater is a uniquely reciprocal art form where actors and spectators share emotional, intellectual, and cathartic experiences, which could foster interpersonal connection, personal growth, and empathy. This article brings new perspective on how theater can elucidate psychotic experiences, encourage dialogue about these experiences, and facilitate social integration and recovery of individuals living with psychosis. CONCLUSION AND IMPLICATIONS FOR PRACTICE: Theater can promote social change, making space for a wider range of perspectives in society. Engaging individuals with lived experiences of psychosis in theatrical productions could lead to new insights about and acceptance of psychotic experiences, both for these individuals and for society at large. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

When therapists talk to voices: Perspectives from service-users who experience auditory hallucinations.

PURPOSE: The purpose of the study was to investigate service-users' experiences of a therapist engaging with their voices (auditory hallucinations) using psychological formulation and direct dialogue. METHOD: A nested qualitative study was conducted within a randomised controlled trial of a novel intervention for supporting voice hearers with a diagnosis of psychosis (Talking With Voices: TwV). Of 24 participants allocated to therapy, 13 (54%) consented to a semi-structured, in-depth interview which was audio-recorded, transcribed verbatim and analysed using inductive thematic analysis. RESULTS: Participants described their experiences of using the intervention to improve the relationship between themselves and their voice(s). The findings are organised within three themes and associated subthemes: (1) A desire for suitable help (Motivation to reduce voice-related distress, Limitation of other treatment options); (2) Engaging with voices (Challenges, Support and safety, Exploration and revelation); and (3) Contemplating the future (The aftermath of adversity, Living well with voices, Resources for moving forward). CONCLUSION: Despite the emotional challenges of the work, many participants experienced tangible gains in the ways they related to their voices post-intervention. For those who responded well, the development of safety strategies, including a strong therapeutic alliance, could facilitate a basis for developing new insights about the origin/nature of the voices which could then be applied in constructive ways. Further research is needed to understand which client characteristics indicate suitability for TwV as opposed to relational therapies that require less direct engagement with voices and/or the psychosocial conflicts with which they may be associated.

The role of culture on the phenomenology of hallucinations and delusions, explanatory models, and help-seeking attitudes: A narrative review.

AIM: Culture has been posited to be involved in the formation and maintenance of delusions and hallucinations. The extent of these differences and how they affect explanatory models of psychosis and help-seeking attitudes remains to be understood. This review aims to present a cultural formulation to account for psychosis onset, symptom maintenance, and help-seeking attitudes. METHODS: A narrative review was conducted to summarize the existing evidence base regarding cross-cultural differences in hallucinatory and delusional prevalence, explanatory models, and help-seeking attitudes in First Episode Psychosis (FEP) and Non-FEP Schizophrenia samples. RESULTS: Sixteen studies were eligible for inclusion. In terms of positive symptom specificity, cross-cultural differences were found. Specifically, auditory and visual hallucinations occurred most frequently in African patients, persecutory and grandiose delusions occurred at higher rates in African, Pakistani, and Latino patients, while delusions of reference were most prevalent in White-British groups. Three explanatory models were identified. Westerners tended to endorse a bio-psychosocial explanation, which was associated with increased help-seeking, engagement, and positive medication attitudes. Asian, Latino, Polish, and Maori patients endorsed religious-spiritual explanatory models, while African patients opted for a bewitchment model. The religious-spiritual and bewitchment models were associated with a longer duration of untreated psychosis (DUP) and poorer engagement with mental health services. CONCLUSIONS: These findings highlight the important influence of culture in the formation and maintenance of positive symptoms of psychosis, engagement, and help-seeking attitudes across different ethnic groups. The incorporation of cultural beliefs in formulation development could facilitate enriched CBTp practices and improved engagement amongst different cultural groups with Early Intervention Services.

Sexual abuse and psychotic phenomena: a directed acyclic graph analysis of affective symptoms using English national psychiatric survey data.

BACKGROUND: Sexual abuse and bullying are associated with poor mental health in adulthood. We previously established a clear relationship between bullying and symptoms of psychosis. Similarly, we would expect sexual abuse to be linked to the emergence of psychotic symptoms, through effects on negative affect. METHOD: We analysed English data from the Adult Psychiatric Morbidity Surveys, carried out in 2007 (N = 5954) and 2014 (N = 5946), based on representative national samples living in private households. We used probabilistic graphical models represented by directed acyclic graphs (DAGs). We obtained measures of persecutory ideation and auditory hallucinosis from the Psychosis Screening Questionnaire, and identified affective symptoms using the Clinical Interview Schedule. We included cannabis consumption and sex as they may determine the relationship between symptoms. We constrained incoming edges to sexual abuse and bullying to respect temporality. RESULTS: In the DAG analyses, contrary to our expectations, paranoia appeared early in the cascade of relationships, close to the abuse variables, and generally lying upstream of affective symptoms. Paranoia was consistently directly antecedent to hallucinations, but also indirectly so, via non-psychotic symptoms. Hallucinosis was also the endpoint of pathways involving non-psychotic symptoms. CONCLUSIONS: Via worry, sexual abuse and bullying appear to drive a range of affective symptoms, and in some people, these may encourage the emergence of hallucinations. The link between adverse experiences and paranoia is much more direct. These findings have implications for managing distressing outcomes. In particular, worry may be a salient target for intervention in psychosis.

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 (ßs = .14-.61) and indirect pathways (ßs = .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.

Does disorganised attachment lead to auditory hallucinations via dissociation? An experimental study with an analogue sample.

OBJECTIVES: Auditory hallucinations (such as hearing voices) are common in clinical and non-clinical populations. Many people who hear voices also report early adversity and have an insecure attachment style. Current cognitive models suggest that dissociation mediates an association between disorganised attachment and auditory hallucinations, but this has not been tested experimentally. DESIGN: We recruited a non-clinical analogue sample highly predisposed to auditory hallucinations and utilised an experimental design to examine the impact of disorganised attachment imagery on hallucinatory experiences, and whether dissociation mediates an expected association. METHODS: Participants completed self-report measures of state auditory hallucinations and dissociation before and after random allocation to secure or disorganised attachment conditions. RESULTS: Attachment imagery did not affect auditory hallucinations. Both secure and disorganised attachment conditions increased state dissociation. Secure attachment imagery reduced paranoia, but state dissociation did not mediate this effect. An exploratory analysis found that trait dissociation fully accounted for the association between trait-disorganised attachment and hallucinatory experience while controlling for paranoia. CONCLUSIONS: Secure attachment imagery reduces paranoia but not auditory hallucinations and the impact on paranoia is not mediated by dissociation. Secure attachment imagery may be useful in reducing fears and distress associated with voices, rather than the frequency or severity of hallucinations. Disorganised attachment may increase hallucinatory experiences for people vulnerable to dissociation. Trait dissociation should be assessed in clinical settings and addressed where indicated as a means of targeting vulnerability to distressing voices.