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1.
Psychol Med ; : 1-9, 2024 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-38825863

RESUMO

BACKGROUND: Shame is experienced as a threat to social self, and so activates threat-protective responses. There is evidence that shame has trauma-like characteristics, suggesting it can be understood within the same conceptual framework as trauma and dissociation. Evidence for causal links among trauma, dissociation, and psychosis thus warrant the investigation of how shame may influence causal mechanisms for psychosis symptoms. METHODS: This study tested the interaction between dissociation and shame, specifically external shame (feeling shamed by others), in predicting psychotic-like experiences (PLEs) six months later in a general population sample (N = 314). It also tested if social safeness moderates these effects. A longitudinal, online questionnaire design tested a moderation model (dissociation-shame) and a moderated moderation model (adding social safeness), using multiple regressions with bootstrap procedures. RESULTS: Although there was no direct effect of dissociation on PLEs six months later, there was a significant interaction effect with shame, controlling for PLEs at baseline. There were complex patterns in the directions of effects: For high-shame-scorers, higher dissociation predicted higher PLE scores, but for low-shame-scorers, higher dissociation predicted lower PLE scores. Social safeness was found to significantly moderate these interaction effects, which were unexpectedly more pronounced in the context of higher social safeness. CONCLUSIONS: The results demonstrate evidence for an interaction between dissociation and shame on its impact on PLEs, which manifests particularly for those experiencing higher social safeness. This suggests a potential role of social mechanisms in both the etiology and treatment of psychosis, which warrants further testing in clinical populations.

2.
Psychol Med ; 53(10): 4614-4626, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-35699135

RESUMO

BACKGROUND: Cognitive Bias Modification for paranoia (CBM-pa) is a novel, theory-driven psychological intervention targeting the biased interpretation of emotional ambiguity associated with paranoia. Study objectives were (i) test the intervention's feasibility, (ii) provide effect size estimates, (iii) assess dose-response and (iv) select primary outcomes for future trials. METHODS: In a double-blind randomised controlled trial, sixty-three outpatients with clinically significant paranoia were randomised to either CBM-pa or an active control (text reading) between April 2016 and September 2017. Patients received one 40 min session per week for 6 weeks. Assessments were given at baseline, after each interim session, post-treatment, and at 1- and 3-months post-treatment. RESULTS: A total of 122 patients were screened and 63 were randomised. The recruitment rate was 51.2%, with few dropouts (four out of 63) and follow-up rates were 90.5% (1-month) and 93.7% (3-months). Each session took 30-40 min to complete. There was no statistical evidence of harmful effects of the intervention. Preliminary data were consistent with efficacy of CBM-pa over text-reading control: patients randomised to the intervention, compared to control patients, reported reduced interpretation bias (d = -0.48 to -0.76), improved symptoms of paranoia (d = -0.19 to -0.38), and lower depressed and anxious mood (d = -0.03 to -0.29). The intervention effect was evident after the third session. CONCLUSIONS: CBM-pa is feasible for patients with paranoia. A fully powered randomised control trial is warranted.


Assuntos
Ansiedade , Transtornos Paranoides , Humanos , Transtornos Paranoides/terapia , Transtornos Paranoides/psicologia , Estudos de Viabilidade , Método Duplo-Cego , Viés , Cognição
3.
Br J Clin Psychol ; 62(4): 762-781, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37635319

RESUMO

OBJECTIVES: Compassion-focused therapy (CFT) is an evolution-informed biopsychosocial approach that seeks to cultivate attachment and care motivational systems and their psychophysiological regulators. These can counteract some of the harmful effects of social threat, inferiority, shame, self-criticism and depression, which are common in people with psychosis and undermine their well-being, social trust and ability to feel safe. This study aimed to test the acceptability of a novel manualized individual CFT intervention for psychosis (CFTp). DESIGN: A non-concurrent, multiple-baseline, case series design, with three phases: baseline, intervention and follow-up. METHODS: The 26-session CFTp intervention was provided for a sample of eight people with distressing psychotic experiences and a psychosis-related diagnosis. The study aimed to assess acceptability of CFTp and to test clinically reliable improvements while receiving the intervention, compared to a baseline period. RESULTS: Seven of eight participants completed the therapy, and clinically reliable improvements were found at both the single-case and group level of analysis. At the single-case level, over half the participants showed improvements in depression (5/7), stress (5/7), distress (5/7), anxiety (4/7) and voices (3/5). One participant showed a deterioration in anxiety (1/7) and dissociation (1/7). At the group level (n = 7), there were significant improvements in depression, stress, distress, voices and delusions. The improvements in voices, delusions and distress were sustained at 6- to 8-week follow-up, but depression and stress dropped slightly to trend-level improvements. CONCLUSIONS: CFTp is a feasible and acceptable intervention for psychosis, and further investigation is warranted with a randomized controlled trial.


Assuntos
Empatia , Transtornos Psicóticos , Humanos , Resultado do Tratamento , Transtornos Psicóticos/psicologia , Psicoterapia , Ansiedade
4.
Psychol Med ; 52(3): 538-547, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-32646525

RESUMO

BACKGROUND: Cognitive models propose that behavioural responses to voices maintain distress by preventing disconfirmation of negative beliefs about voices. We used Experience Sampling Methodology (ESM) to examine the hypothesized maintenance role of behavioural responses during daily life. METHOD: Thirty-one outpatients with frequent voices completed a smartphone-based ESM questionnaire 10 times a day over 9 days, assessing voice-related distress; resistance and compliance responses to voices; voice characteristics (intensity and negative content); appraisals of voice dominance, uncontrollability and intrusiveness. RESULTS: In line with predictions, behavioural responses were associated with voice appraisals (dominance and uncontrollability), but not voice characteristics. Greater resistance and compliance were reported in moments of increased voice distress, but these associations did not persist after controlling for concurrent voice appraisals and characteristics. Voice distress was predicted by appraisals, and, unexpectedly, also by voice characteristics. As predicted, compliance and resistance were related to increases in distress at subsequent timepoints, whilst antecedent voice appraisals and characteristics had no such effect. Compliance, but not resistance, additionally predicted subsequent increases in voice uncontrollability. In both cases, the reverse models showed no association, indicating directional effects of responses on subsequent distress, and of compliance on uncontrollability appraisals. CONCLUSIONS: These results provide support for the cognitive model by suggesting that momentary behavioural and emotional responses to voices are associated with concurrent negative voice appraisals. Findings suggest that behavioural responses may be driven by voice appraisals, rather than directly by distress, and may in turn maintain voice appraisals and associated distress during the course of daily life.


Assuntos
Alucinações , Voz , Cognição , Avaliação Momentânea Ecológica , Emoções , Alucinações/psicologia , Humanos
5.
Psychol Med ; 52(8): 1509-1516, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-33023691

RESUMO

BACKGROUND: The prevalence of psychotic experiences (PEs) is higher in low-and-middle-income-countries (LAMIC) than in high-income countries (HIC). Here, we examine whether this effect is explicable by measurement bias. METHODS: A community sample from 13 countries (N = 7141) was used to examine the measurement invariance (MI) of a frequently used self-report measure of PEs, the Community Assessment of Psychic Experiences (CAPE), in LAMIC (n = 2472) and HIC (n = 4669). The CAPE measures positive (e.g. hallucinations), negative (e.g. avolition) and depressive symptoms. MI analyses were conducted with multiple-group confirmatory factor analyses. RESULTS: MI analyses showed similarities in the structure and understanding of the CAPE factors between LAMIC and HIC. Partial scalar invariance was found, allowing for latent score comparisons. Residual invariance was not found, indicating that sum score comparisons are biased. A comparison of latent scores before and after MI adjustment showed both overestimation (e.g. avolition, d = 0.03 into d = -0.42) and underestimation (e.g. magical thinking, d = -0.03 into d = 0.33) of PE in LAMIC relative to HIC. After adjusting the CAPE for MI, participants from LAMIC reported significantly higher levels on most CAPE factors but a significantly lower level of avolition. CONCLUSION: Previous studies using sum scores to compare differences across countries are likely to be biased. The direction of the bias involves both over- and underestimation of PEs in LAMIC compared to HIC. Nevertheless, the study confirms the basic finding that PEs are more frequent in LAMIC than in HIC.


Assuntos
Transtornos Psicóticos , Análise Fatorial , Alucinações , Humanos , Renda , Transtornos Psicóticos/diagnóstico , Transtornos Psicóticos/epidemiologia , Autorrelato
6.
Eur Arch Psychiatry Clin Neurosci ; 272(1): 119-127, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34129115

RESUMO

Social isolation has been suggested to foster paranoia. Here we investigate whether social company (i.e., being alone vs. not) and its nature (i.e., stranger/distant vs. familiar other) affects paranoia differently depending on psychosis risk. Social interactions and paranoid thinking in daily life were investigated in 29 patients with clinically stable non-affective psychotic disorders, 20 first-degree relatives, and 26 controls (n = 75), using the experience sampling method (ESM). ESM was completed up to ten times daily for 1 week. Patients experienced marginally greater paranoia than relatives [b = 0.47, p = 0.08, 95% CI (- 0.06, 1.0)] and significantly greater paranoia than controls [b = 0.55, p = 0.03, 95% CI (0.5, 1.0)], but controls and relatives did not differ [b = 0.07, p = 0.78, 95% CI (- 0.47, 0.61)]. Patients were more often alone [68.5% vs. 44.8% and 56.2%, respectively, p = 0.057] and experienced greater paranoia when alone than when in company [b = 0.11, p = 0.016, 95% CI (0.02, 0.19)]. In relatives this was reversed [b = - 0.17, p < 0.001, 95% CI (- 0.28, - 0.07)] and in controls non-significant [b = - 0.02, p = 0.67, 95% CI (- 0.09, 0.06)]. The time-lagged association between being in social company and subsequent paranoia was non-significant and paranoia did not predict the likelihood of being in social company over time (both p's = 0.68). All groups experienced greater paranoia in company of strangers/distant others than familiar others [X2(2) = 4.56, p = 0.03] and being with familiar others was associated with lower paranoia over time [X2(2) = 4.9, p = 0.03]. Patients are frequently alone. Importantly, social company appears to limit their paranoia, particularly when being with familiar people. The findings stress the importance of interventions that foster social engagement and ties with family and friends.


Assuntos
Transtornos Psicóticos , Isolamento Social , Humanos , Transtornos Paranoides/epidemiologia , Transtornos Psicóticos/epidemiologia , Interação Social , Isolamento Social/psicologia
7.
J Ment Health ; 31(6): 825-832, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34319202

RESUMO

BACKGROUND: Remote therapy promises a cost-effective way of increasing delivery of psychological-therapy in underserved populations. However, research shows a "digital divide", with some groups experiencing digital exclusion. AIMS: To assess whether technology, accessibility, and demographic factors influence remote therapy uptake among individuals with psychosis, and whether demographic factors are associated with digital exclusion. METHODS: Remote therapy uptake and demographics were assessed in people (n = 51) within a psychology-led service for psychosis, using a survey of access to digital hardware, data and private space. RESULTS: The majority of individuals had access to digital devices, but 29% did not meet minimum requirements for remote therapy. Nineteen (37%) individuals declined remote therapy. Those who accepted were significantly younger and more likely to have access to technology than those who declined. The mean age of those with access to smartphones and large screen devices was younger than those without access. CONCLUSIONS: A subgroup of people with psychosis face barriers to remote therapy and a significant minority are digitally excluded. Older age is a key factor influencing remote therapy uptake, potentially related to less access to digital devices. Services must minimize exclusion through provision of training, hardware and data, whilst promoting individual choice.


Assuntos
Transtornos Psicóticos , Humanos , Londres , Transtornos Psicóticos/terapia , Transtornos Psicóticos/psicologia , Grupos Minoritários
8.
Neuroimage ; 243: 118486, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34438255

RESUMO

Existing models of emotion processing are based almost exclusively on brain activation data, yet make assumptions about network connectivity. There is a need to integrate connectivity findings into these models. We systematically reviewed all studies of functional and effective connectivity employing tasks to investigate negative emotion processing and regulation in healthy participants. Thirty-three studies met inclusion criteria. A quality assessment tool was derived from prominent neuroimaging papers. The evidence supports existing models, with primarily limbic regions for salience and identification, and frontal areas important for emotion regulation. There was mixed support for the assumption that regulatory influences on limbic and sensory areas come predominantly from prefrontal areas. Rather, studies quantifying effective connectivity reveal context-dependent dynamic modulatory relationships between occipital, subcortical, and frontal regions, arguing against purely top-down regulatory theoretical models. Our quality assessment tool found considerable variability in study design and tasks employed. The findings support and extend those of previous syntheses focused on activation studies, and provide evidence for a more nuanced view of connectivity in networks of human emotion processing and regulation.


Assuntos
Mapeamento Encefálico/métodos , Emoções/fisiologia , Imageamento por Ressonância Magnética/métodos , Rede Nervosa/diagnóstico por imagem , Tonsila do Cerebelo/diagnóstico por imagem , Regulação Emocional/fisiologia , Feminino , Lobo Frontal/diagnóstico por imagem , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Vias Neurais/diagnóstico por imagem , Córtex Pré-Frontal/diagnóstico por imagem
9.
Psychol Med ; 51(11): 1944-1950, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-32686627

RESUMO

OBJECTIVES: Psychosis, and in particular auditory verbal hallucinations (AVHs), are associated with adversity exposure. However, AVHs also occur in populations with no need for care or distress. AIMS: This study investigated whether adversity exposure would differentiate clinical and healthy voice-hearers within the context of a 'three-hit' model of vulnerability and stress exposure. METHODS: Samples of 57 clinical and 45 healthy voice-hearers were compared on the three 'hits': familial risk; adversity exposure in childhood and in adolescence/adulthood. RESULTS: Clinical voice-hearers showed greater familial risk than healthy voice-hearers, with more family members with a history of psychosis, but not with other mental disorders. The two groups did not differ in their exposure to adversity in childhood [sexual and non-sexual, victimisation; discrimination and socio-economic status (SES)]. Contrary to expectations, clinical voice-hearers did not differ from healthy voice-hearers in their exposure to victimisation (sexual/non-sexual) and discrimination in adolescence/adulthood, but reported more cannabis and substance misuse, and lower SES. CONCLUSIONS: The current study found no evidence that clinical and healthy voice-hearers differ in lifetime victimisation exposure, suggesting victimisation may be linked to the emergence of AVHs generally, rather than need-for-care. Familial risk, substance misuse and lower SES may be additional risk factors involved in the emergence of need-for-care and distress.


Assuntos
Alucinações/etiologia , Transtornos Psicóticos , Estresse Psicológico/psicologia , Adulto , Família , Feminino , Nível de Saúde , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Reino Unido
10.
Eur Arch Psychiatry Clin Neurosci ; 271(8): 1525-1535, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32661704

RESUMO

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.


Assuntos
Alucinações , Teorema de Bayes , Alucinações/diagnóstico , Alucinações/psicologia , Humanos , Percepção da Fala/fisiologia , Voz
11.
Psychol Med ; 50(5): 761-770, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-30944059

RESUMO

BACKGROUND: Certain ways of responding to psychotic experiences (PEs) appear more commonly associated with clinical distress (e.g. avoidance) and other ways with benign or positive outcomes (e.g. reappraisal and acceptance). Past research has largely been limited to retrospective self-report. We aimed to compare clinical and non-clinical individuals on experimental analogues of anomalous experiences. METHOD: Response styles of two groups with persistent PEs (clinical n = 84; non-clinical n = 92) and a control group without PEs (n = 83) were compared following experimental analogues of thought interference (Cards Task, Telepath) and hearing voices (Virtual Acoustic Space Paradigm). RESULTS: The non-clinical group with PEs were less likely to endorse unhelpful response styles, such as passive responding or attempts to avoid, suppress, worry about or control mental experiences, compared with the clinical group on all three tasks. The clinical group were more likely to endorse unhelpful response styles compared with controls on two out of three tasks (Cards Task and Telepath). The non-clinical group performed similarly to controls on unhelpful responding across all tasks. There were no group differences for helpful response styles, such as cognitive reappraisal or mindful acceptance of experiences. CONCLUSIONS: In line with cognitive models of psychosis, the findings suggest that the way in which individuals respond to unusual experiences may be an important factor in understanding clinical distress, supporting the therapeutic rationale of targeting potentially unhelpful patterns of response.


Assuntos
Modelos Psicológicos , Transtornos Psicóticos/psicologia , Adulto , Estudos de Casos e Controles , Cognição , Feminino , Alucinações/psicologia , Humanos , Masculino , Estudos Retrospectivos , Autorrelato
12.
Psychol Med ; 50(13): 2194-2202, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-31500678

RESUMO

BACKGROUND: Impairments of contextual processing and theory of mind (ToM) have both been offered as accounts of the deviant language characterising formal thought disorder (FTD) in schizophrenia. This study investigated these processes in patients' dialogue. We predicted that FTD patients would show a decrement in linguistic alignment, associated with impaired ToM in dialogue. METHODS: Speech samples were elicited via participation in an interactive computer-based task and a semi-structured interview to assess contextual processing abilities and ToM skills in dialogue, respectively, and from an interactive card-sorting task to measure syntactic alignment. Degree of alignment in dialogue and the syntactic task, and evidence of ToM in (i) dialogue and (ii) a traditional ToM task were compared across schizophrenia patients with FTD (n = 21), non-FTD patients (n = 22) and healthy controls (n = 21). RESULTS: FTD patients showed less alignment than the other two groups in dialogue, and than healthy controls on the syntactic task. FTD patients showed poorer performance on the ToM task than the other two groups, but only compared to the healthy controls in dialogue. The FTD group's degree of alignment in dialogue was correlated with ToM performance in dialogue but not with the traditional ToM task or with syntactic alignment. CONCLUSIONS: In dialogue, FTD patients demonstrate an impairment in employing available contextual information to facilitate their own subsequent production, which is associated with a ToM deficit. These findings indicate that a contextual processing deficit impacts on exploiting representations via the production system impoverishing the ability to make predictions about upcoming utterances in dialogue.


Assuntos
Transtornos Cognitivos/etiologia , Linguística , Esquizofrenia/fisiopatologia , Psicologia do Esquizofrênico , Teoria da Mente , Adulto , Estudos de Casos e Controles , Transtornos Cognitivos/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Esquizofrenia/complicações
13.
BMC Psychiatry ; 20(1): 193, 2020 04 29.
Artigo em Inglês | MEDLINE | ID: mdl-32349698

RESUMO

BACKGROUND: Inpatient psychiatric care is a scarce and expensive resource in the National Health Service (NHS), with chronic bed shortages being partly driven by high re-admission rates. Brief inpatient talking therapies for psychosis could help reduce re-admission rates. The primary aim was to assess feasibility and acceptability of a novel, brief, mindfulness-based intervention for inpatients with psychosis. The secondary aim was to collect pilot outcome data on readmission rate, at 6 and 12 months (m) post discharge, and self-report symptom measures at 6 m. METHODS: The amBITION study (BrIef Talking therapIes ON wards) was a parallel group, feasibility randomised controlled trial (RCT). In addition to treatment as usual (TAU), eligible inpatients with psychotic symptoms were randomly allocated to receive either (Mindfulness-Based Crisis Intervention; MBCI) or a control intervention (Social Activity Therapy; SAT), for 1-5 sessions. RESULTS: Fifty participants were recruited (26 MBCI; 24 SAT); all received at least 1 therapy session (mean = 3). Follow-up rates were 98% at 6 m and 96% at 12 m for service use data extracted from clinical notes, and 86% for self-report measures. At 6 m follow-up, re-admission rates were similar across groups (MBCI = 6, SAT = 5; odds ratio = 1.20, 95% CI: 0.312-4.61). At 12 m follow-up, re-admissions were lower in the MBCI group (MBCI = 7, SAT = 11; odds ratio = 0.46, 95% CI: 0.14-1.51). Three participants experienced adverse events; none was related to trial participation. CONCLUSIONS: Delivering a brief mindfulness-based inpatient intervention for psychosis is feasible and acceptable, and may reduce risk of short-term readmission. These promising findings warrant progression to a larger clinical effectiveness trial. TRIAL REGISTRATION: ISRCTN37625384.


Assuntos
Intervenção em Crise , Pacientes Internados/psicologia , Atenção Plena , Transtornos Psicóticos/terapia , Adolescente , Adulto , Assistência ao Convalescente , Idoso , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Alta do Paciente , Medicina Estatal , Adulto Jovem
14.
J Ment Health ; 29(5): 605-610, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30902027

RESUMO

Background: Schizophrenia spectrum disorders are long-term disabling conditions placing high economic demands on health services.Aim: To investigate whether cognitive behavioural therapy for psychosis (CBTp), delivered in a specialist psychological therapies service, was associated with a reduction in intensive care costs.Methods: Days using inpatient care and out of hours crisis support were recorded (N = 69). Costs associated with high intensity care use in the 12 months pre-referral were compared to during, and 12 months following cessation of therapy.Results: Despite the majority of participants incurring £0 at all time periods, costs of intensive mental health care more than halved with CBTp delivery, with a significant decrease during therapy, and at trend level after therapy (p = 0.07). Post hoc analysis revealed that offsetting the cost of therapy for those who utilised intensive care services at any time point (N = 18) resulted in therapy being cost neutral during therapy and cost effective (at trend level) 12 months following cessation of therapy.Conclusion: CBTp may reduce costs associated with intensive psychiatric care, even in a population where the minority use these services. Investment in therapy may lead to both clinical and financial benefits.


Assuntos
Terapia Cognitivo-Comportamental/economia , Custos e Análise de Custo , Custos de Cuidados de Saúde , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Adulto , Feminino , Humanos , Londres , Masculino , Prática Profissional , Estudos Retrospectivos
15.
Psychol Med ; 49(1): 113-120, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-29536827

RESUMO

BACKGROUND: Hearing voices can be a distressing and disabling experience for some, whilst it is a valued experience for others, so-called 'healthy voice-hearers'. Cognitive models of psychosis highlight the role of memory, appraisal and cognitive biases in determining emotional and behavioural responses to voices. A memory bias potentially associated with distressing voices is the overgeneral memory bias (OGM), namely the tendency to recall a summary of events rather than specific occasions. It may limit access to autobiographical information that could be helpful in re-appraising distressing experiences, including voices. METHODS: We investigated the possible links between OGM and distressing voices in psychosis by comparing three groups: (1) clinical voice-hearers (N = 39), (2) non-clinical voice-hearers (N = 35) and (3) controls without voices (N = 77) on a standard version of the autobiographical memory test (AMT). Clinical and non-clinical voice-hearers also completed a newly adapted version of the task, designed to assess voices-related memories (vAMT). RESULTS: As hypothesised, the clinical group displayed an OGM bias by retrieving fewer specific autobiographical memories on the AMT compared with both the non-clinical and control groups, who did not differ from each other. The clinical group also showed an OGM bias in recall of voice-related memories on the vAMT, compared with the non-clinical group. CONCLUSIONS: Clinical voice-hearers display an OGM bias when compared with non-clinical voice-hearers on both general and voices-specific recall tasks. These findings have implications for the refinement and targeting of psychological interventions for psychosis.


Assuntos
Alucinações/fisiopatologia , Memória Episódica , Rememoração Mental/fisiologia , Transtornos Psicóticos/fisiopatologia , Percepção da Fala/fisiologia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
16.
Br J Psychiatry ; 213(2): 490-497, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29941055

RESUMO

BACKGROUND: People with psychotic disorders account for most acute admissions to psychiatric wards. Psychological therapies are a treatment adjunct to standard medication and nursing care, but the evidence base for such therapies within in-patient settings is unclear.AimsTo conduct a systematic scoping review of the current evidence base for psychological therapies for psychosis delivered within acute in-patient settings (PROSPERO: CRD42015025623). METHOD: All study designs, and therapy models, were eligible for inclusion in the review. We searched PubMed, PsycINFO, EThOS, ProQuest, conference abstracts and trial registries. RESULTS: We found 65 studies that met criteria for inclusion in the review, 21 of which were randomised controlled trials (RCTs). The majority of studies evaluated cognitive-behavioural interventions. Quality was variable across all study types. The RCTs were mostly small (n<25 in the treatment arm), and many had methodological limitations including poorly described randomisation methods, inadequate allocation concealment and non-masked outcome assessments. We found studies used a wide range of different outcome measures, and relatively few studies reported affective symptoms or recovery-based outcomes. Many studies described adaptations to treatment delivery within in-patient settings, including increased frequency of sessions, briefer interventions and use of single-session formats. CONCLUSIONS: Based on these findings, there is a clear need to improve methodological rigour within in-patient research. Interpretation of the current evidence base is challenging given the wide range of different therapies, outcome measures and models of delivery described in the literature.Declaration of interestNone.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Transtornos Psicóticos/terapia , Hospitalização , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
17.
Psychol Med ; 48(12): 1966-1974, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29202885

RESUMO

BACKGROUND: Acting on harmful command hallucinations is a major clinical concern. Our COMMAND CBT trial approximately halved the rate of harmful compliance (OR = 0.45, 95% CI 0.23-0.88, p = 0.021). The focus of the therapy was a single mechanism, the power dimension of voice appraisal, was also significantly reduced. We hypothesised that voice power differential (between voice and voice hearer) was the mediator of the treatment effect. METHODS: The trial sample (n = 197) was used. A logistic regression model predicting 18-month compliance was used to identify predictors, and an exploratory principal component analysis (PCA) of baseline variables used as potential predictors (confounders) in their own right. Stata's paramed command used to obtain estimates of the direct, indirect and total effects of treatment. RESULTS: Voice omnipotence was the best predictor although the PCA identified a highly predictive cognitive-affective dimension comprising: voices' power, childhood trauma, depression and self-harm. In the mediation analysis, the indirect effect of treatment was fully explained by its effect on the hypothesised mediator: voice power differential. CONCLUSION: Voice power and treatment allocation were the best predictors of harmful compliance up to 18 months; post-treatment, voice power differential measured at nine months was the mediator of the effect of treatment on compliance at 18 months.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Alucinações/terapia , Transtornos do Humor/terapia , Avaliação de Resultados em Cuidados de Saúde , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Percepção da Fala/fisiologia , Voz/fisiologia , Adolescente , Adulto , Alucinações/etiologia , Humanos , Pessoa de Meia-Idade , Transtornos do Humor/complicações , Prognóstico , Transtornos Psicóticos/complicações , Esquizofrenia/complicações , Método Simples-Cego , Adulto Jovem
18.
Cogn Neuropsychiatry ; 23(5): 299-306, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30047842

RESUMO

INTRODUCTION: There is an ongoing debate about whether negative affect are consequences or triggers of paranoid thinking. It has also been suggested that aberrant salience is central to the development of delusions. This study modelled the moment-to-moment relationships between negative affect, aberrant salience, and paranoia in acute inpatients with psychosis. METHODS: Participants with active paranoid delusions were assessed using clinical rating scales and experience sampling method (ESM) over 14 days. ESM data were analysed using time-lagged multilevel regression modelling. RESULTS: Both negative affect and aberrant salience predicted an increase in paranoia at the next time point. Conversely, the level of paranoia did not predict subsequent changes in negative affect or aberrant salience. Negative affect predicted an increase in aberrant salience at the next time point, and vice versa. CONCLUSIONS: Negative affect and aberrant salience appear to drive and exacerbate paranoia, rather than being merely the sequelae of the symptom. Our results suggest both direct and indirect (via aberrant salience) pathways from negative affect to paranoia.


Assuntos
Afeto , Delusões/psicologia , Transtornos Paranoides/psicologia , Transtornos Psicóticos/psicologia , Adulto , Ansiedade/diagnóstico , Ansiedade/psicologia , Delusões/diagnóstico , Depressão/diagnóstico , Depressão/psicologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Modelos Psicológicos , Transtornos Paranoides/diagnóstico , Escalas de Graduação Psiquiátrica , Transtornos Psicóticos/diagnóstico
19.
Br J Clin Psychol ; 56(2): 115-129, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28105670

RESUMO

OBJECTIVES: To examine the role of shame and its relationship to depression in schizophrenia. It was predicted that individuals with a diagnosis of schizophrenia would exhibit higher levels of shame due to the stigma associated with their diagnosis, independently of depression levels, compared with psychiatric and medical control groups. DESIGN: Cross-sectional design with three groups: individuals with a diagnosis of (1) schizophrenia, (2) depression, and (3) rheumatoid arthritis. METHODS: Sixty individuals participated in the study (20 per group). Groups were compared on questionnaires assessing external shame, trait shame and guilt, and depression. RESULTS: The pattern of group differences depended on the type of shame measure used. Both the schizophrenia and depression groups exhibited higher levels of external shame, or seeing others as shaming, than the medical group. For individuals with schizophrenia, seeing others as shaming was associated with higher levels of depression, a relationship not found in either control group. They also showed lower levels of trait guilt and shame (at trend level), compared with both control groups. No difference was found between the groups on depression, suggesting that the observed differences were not attributable to differences in levels of depression. CONCLUSIONS: The findings highlight the importance of shame in schizophrenia, especially the link between seeing other people as shaming and depression, which was unique to this group. These results suggest that stigma associated with a diagnosis of mental illness, and schizophrenia in particular, has negative emotional consequences that may impede recovery, and should be addressed by psychological and social interventions. PRACTITIONER POINTS: Clinical implications Individuals with a diagnosis of mental illness (schizophrenia or depression) are more likely to experience others as shaming than those diagnosed with a physical illness, irrespective of current levels of depression and proneness to shame. There is a specific association between external shame and depression in individuals diagnosed with schizophrenia, suggesting the need for interventions levelled both at the individual's illness appraisals, and at social stigma relating to schizophrenia. Limitations of the study The participant numbers were low in each group. The three groups could not be matched on all variables. No additional internalized-stigma measure was used.


Assuntos
Artrite Reumatoide/psicologia , Depressão/etiologia , Esquizofrenia/complicações , Vergonha , Adolescente , Adulto , Artrite Reumatoide/complicações , Estudos Transversais , Depressão/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto Jovem
20.
Br J Clin Psychol ; 56(1): 84-102, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27910997

RESUMO

OBJECTIVES: Few studies have investigated service user satisfaction with cognitive behavioural therapy for psychosis (CBTp). This study explored its associations with clinical presentation and outcomes, retrospective expectations of progress, perceptions of the therapist, and demographic variables. DESIGN AND METHODS: One hundred and sixty-five service users completed self-report questionnaires pre- and post-CBTp in relation to the constructs of interest. Regression analyses explored associations with (1) overall satisfaction with therapy and (2) perceived progress, skills, and knowledge gained. RESULTS: Ninety-six per cent of service users reported satisfaction with therapy. Higher levels of overall satisfaction with, and perceived benefit from, therapy were associated with positive therapy expectations, positive ratings of therapist's personal qualities, competence and trustworthiness, lower pre-therapy depression, and improvements in quality of life. Symptom improvements were not related to overall satisfaction with therapy; however, with the exception of voices, better clinical outcomes were associated with subjective ratings of having made more progress and gained more CBT skills and knowledge. Demographic factors were not associated with satisfaction or perceived progress. In multiple regression analyses, expectations of progress showed the strongest associations with both satisfaction and perceived benefits. Other remaining significant associations consisted of perceptions of the therapist for satisfaction, and both pre-therapy levels of, and changes in, depression for perceived benefits. Qualitative feedback emphasized the importance of the therapeutic relationship and developing new coping strategies. CONCLUSIONS: The findings provide preliminary evidence that high levels of satisfaction with therapy are not contingent on good clinical outcomes and are instead associated with positive therapy expectations and perceptions of the therapist. PRACTITIONER POINTS: Therapy expectations represent a neglected area of research and may have implications for levels of satisfaction with therapy and perceived benefit. The findings reinforce the importance of cognitive behavioural therapy for psychosis (CBTp) therapists demonstrating that they are supportive, competent, and trustworthy. The findings suggest that positive experiences of therapy do not require changes in psychosis symptoms and are instead related to changes in quality of life. Depressive symptoms at the start of therapy may adversely influence the extent to which CBT skills and knowledge are gained and levels of perceived progress at the end of therapy. The present sample was restricted to service users who completed therapy. Satisfaction levels were high. Further research is needed to explore factors associated with dissatisfaction with therapy.


Assuntos
Terapia Cognitivo-Comportamental , Satisfação do Paciente , Relações Profissional-Paciente , Transtornos Psicóticos/terapia , Qualidade de Vida , Adaptação Psicológica , Adulto , Transtorno Depressivo/terapia , Feminino , Pessoal de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Percepção , Transtornos Psicóticos/psicologia , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
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