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Dissertations / Theses on the topic 'Psychotic-like experiences'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Papanastasiou, Evangelos. "The neural basis of psychotic-like experiences." Thesis, King's College London (University of London), 2018. https://kclpure.kcl.ac.uk/portal/en/theses/the-neural-basis-of-psychoticlike-experiences(d153994f-d3fd-488d-92a2-d2222711d49f).html.

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Psychotic‐Like Experiences (PLE) are subclinical manifestation of psychotic symptoms and may reflect an increased vulnerability to psychotic disorders. Contemporary models of psychosis propose that dysfunctional reward processing and emotional dysregulation is involved in the aetiology of psychosis. Objective: To examine the neuroimaging profile of healthy adolescents with an increased presence of PLE, during a face processing and a reward processing task. Method: 1,434 adolescents were assessed at two timepoints using functional MRI during a Faces Task (FT) and a Monetary Incentive Delay (MID

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2

Smailes, David. "Parental bonding, attachment, reality discrimination, and psychotic-like experiences." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10705/.

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Psychological models of psychotic experiences suggest that social adversity (e.g., difficult family relationships, bullying) and anomalous percepts play an important role in the development of paranoid thinking, while intrusive cognitions and problems in reality discrimination play an important role in the development of auditory hallucinations (AH). The studies reported in this thesis examined a number of research questions relevant to these models, by investigating psychotic experiences in non-clinical populations (typically referred to as psychotic-like experiences, or PLEs). In Study 1 it

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Tobin, Claire. "Caregiving relationships in families of children with psychotic-like experiences." Thesis, King's College London (University of London), 2013. https://kclpure.kcl.ac.uk/portal/en/theses/caregiving-relationships-in-families-of-children-with-psychoticlike-experiences(dec4f259-26cd-4665-acd7-b59a622ec86a).html.

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Aims: Caring for a child with emotional and/or behavioural problems can cause considerable stress for parents, which can in turn impact adversely on parent-child relationships. A difficult family environment increases the risk of negative outcomes for both children and their parents, and plays a key role in the evolution and recurrence of psychotic symptoms. This study will examine the applicability of a cognitive model of caregiving to a group of parents of clinically referred children, and associations between the family environment and severity of Psychotic-Like Experiences (PLEs). Method:

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4

Mannion, Aisling. "Psychosis and psychotic-like experiences in pregnant and postpartum women." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4586/.

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5

Cooper, Shanna. "EXPERIENTIAL NEGATIVE SYMPTOMS IN YOUNG ADULTS ENDORSING PSYCHOTIC-LIKE EXPERIENCES." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/517180.

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Psychology<br>Ph.D.<br>While many studies of risk factors for psychosis focus on positive symptoms, such as subthreshold levels of hallucinations and delusions, fewer studies have examined negative symptoms in the early course of the schizophrenia or other psychotic disorders. This relative lack of focus on the role of negative symptoms is problematic, given findings that negative symptoms, such as a loss of motivation and pleasure (MAP), are associated with a more persistent and impairing course of psychosis, and tend to appear earlier in the development of psychotic symptoms. Psychotic disor

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6

Philpott, Rosanna Lewissa. "Trauma-related psychological processes & psychotic-like experiences in adolescent inpatients." Thesis, King's College London (University of London), 2014. http://kclpure.kcl.ac.uk/portal/en/theses/traumarelated-psychological-processes--psychoticlike-experiences-in-adolescent-inpatients(3f7e4946-3f1b-48d7-98fe-7cb9a420f3d3).html.

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This project looks at the feasibility of adapting a Webster-Stratton Incredible Years Parenting Group for parents of children with Learning Disabilities. Such groups are recommended for parents of children with Conduct Disorders, but parents of those with a Learning Disability (LD) are often excluded. Two parenting groups were facilitated in a South London CAMHS service and the second such group was further modified following feedback from the first group. Four carers completed the first group and six carers completed the second group. The carers were satisfied with the group and gave positive

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7

Cosgrave, Jan. "Unravelling the links between psychotic-like experiences, sleep and circadian rhythms." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:0e871ab6-6bbd-48f2-99fd-94ef2df95937.

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Psychotic-like experiences (PLEs) are prevalent occurrences deemed comparable with the symptoms of psychosis, but not sufficiently severe to warrant a diagnosis upon clinical presentation. Their presence is associated with several adverse clinical outcomes: the onset of various common mental health disorders (e.g. anxiety, mood, substance abuse), poorer functioning, non-remission and relapse. Sleep and circadian rhythm disruption (SCRD) is observed in 30-80% of patients with psychosis. The omnipotence of SCRD across all phases of the disorder (including the prodromal, acute, chronic and residu

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8

Capra, Carina Natasha. "Measuring, understanding and reducing psychotic-like experiences (PLEs) in young people." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/87545/22/87545%28thesis%29.pdf.

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Using large community samples, an existing screening instrument for unusual beliefs and perceptual experiences was refined, and a current version of the lifetime measure was developed and tested. Importantly, high scores on the instruments were associated with psychological distress and suicide risk. Acceptability testing of a web treatment was also undertaken. Routine use of the screening instrument and web program in health services may improve identification and support of young people at risk of distress and serious psychological disorder.

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9

Armando, Marco. "Psychotic like experiences and 22q11 microdeletion syndrome : two possible models for the investigation of gene-enviroment interaction in psychotic onset." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/3940/.

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Psychotic disorders can be defined as disorders of adaptation to social context. Although heritability is often emphasized, onset must be considered as the end-point of a pathway which involves: 1) genetic heritability; 2) environmental factors; 3) psychopathological factors. Therefore, the current challenge consists in combining different scientific fields aiming at a deeper comprehension of psychotic disorders. Taking off these considerations, this thesis will present research conducted in Rome (Children Hospital Bambino Gesù) and in Birmingham (Department of Psychology, University of Birmin

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10

Adams, Kimberly Anne. "Racial differences in psychotic-like experiences a study of schizotypy in African Americans and Caucasians /." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/7340.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Psychology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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11

Alba, Anca. "The role of emotion regulation in affective disturbance and psychotic-like experiences in adolescent inpatients." Thesis, King's College London (University of London), 2014. https://kclpure.kcl.ac.uk/portal/en/theses/the-role-of-emotion-regulation-in-affective-disturbance-and-psychoticlike-experiences-in-adolescent-inpatients(caaccbdf-62ef-4b1d-a505-6c4fe8f6c51e).html.

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Introduction: Prevalence of common mental disorders such as depression and anxiety is highest among those aged 45-54, and lowest in those aged 75 or older. Method: Longitudinal analyses of secondary data were conducted using the data collected routinely in a London-based Improving Access to Psychological Therapy (IAPT) Service (N=77; f=39; m=38). Data were collected by IAPT clinicians and staff over a period of 4 years between 2008 and 2012. Demographical data, information regarding engagement with low intensity treatment as well as clinical outcome measures (PHQ-9, GAD7, W&SAS) were inclu

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12

Murphy, Siobhan. "Environmental and social influences on psychotic-like experiences in a sample of 15 - 18 year olds." Thesis, Ulster University, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.674728.

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This thesis will make a valuable contribution to our understanding of the phenotypic expression of psychotic like symptoms (PLEs) in adolescence and risk factors associated with these experiences, informing the extant literature in this field. Epidemiological studies have shown that PLEs are reported in the general population and that the differences between clinical and non-clinical samples are quantitative rather than qualitative (Johns et a1., 2004; Linscott & Van as, 2013). Importantly, PLEs are relatively common in early adolescence and for the majority are transitory, however when these

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13

Monastra, Matia. "The role of affective theory of mind in the association between trauma and psychotic-like experiences." Thesis, Lancaster University, 2018. http://eprints.lancs.ac.uk/128062/.

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While it has been established that childhood trauma is associated with experiencing psychosis, the dynamics of this relationship are far from being understood. Social cognition is thought to be an important factor for understanding this association as it has been found that social difficulties predict functional outcome in psychosis better than non-social cognitive difficulties. This thesis set out to explore these variables, specifically the role that affective theory of mind has on the association between childhood trauma and psychotic-like experiences. Following PRISMA guidelines, the assoc

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14

Tekes, Sinem. "Investigating activity levels in children with psychotic-like experiences : the role of emotional, social and cognitive factors." Thesis, King's College London (University of London), 2017. https://kclpure.kcl.ac.uk/portal/en/theses/investigating-activity-levels-in-children-with-psychoticlike-experiences(7e27f887-d63e-4b03-bc24-3de52f35aca5).html.

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Engagement in activity, an aspect of social functioning, is important to good mental health. In adults, perceived mental health stigma has been shown to limit functioning, and is therefore implicated in the development and maintenance of a range of mental health conditions. Recovery-oriented interventions have started to focus on reducing stigma, to promote improved functioning. There is growing interest in early intervention in mental health, to address vulnerability and emerging difficulties, and promote engagement in developmental opportunities, with a view to reducing future morbidity. Sti

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15

Roddy, Sarah. "An investigation of the relationship between psychotic-like experiences and adverse events in 8-14 year olds." Thesis, King's College London (University of London), 2014. http://kclpure.kcl.ac.uk/portal/en/theses/an-investigation-of-the-relationship-between-psychoticlike-experiences-and-adverse-events-in-1814-year-olds(944388da-570c-42f6-a383-593771e824f7).html.

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Caregivers play an important role in the treatment and recovery of people with psychosis. These caregivers can experience significant distress and have specific needs that are distinct from the service user. Caregivers require individualised interventions to reduce distress and improve well-being, in line with recent government mental health policies. However, responding to caregiver needs is not readily identified as being the main responsibility of anyone in clinical services. A small pilot study sought to evaluate the effect and acceptability of providing brief, needs led interventions for

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16

Drake, Emily. "Is a group of individuals reporting psychotic-like experiences less susceptible to visual illusions than a non-clinical group?" Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/60992/.

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Background: A “basic cognitive disruption” leading to impairment in top-down and bottom-up processing is thought to underlie a number of anomalous experiences reported by individuals with psychosis. Visual illusion paradigms may be useful in exploring this potential disruption. The primary aim was to explore whether a group of young people having psychotic-like experiences were less susceptible to visual illusions than a group of healthy controls. This study also examined the relationship between frequency of psychotic-like experiences and illusion susceptibility and the role of appraisals and

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17

Barragán, Farfán Janis Marcela. "Psychotic-like experiences and psychometric schizotypy: their relationships with depressive symptoms and theory of mind in adolescents from the general population." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/129120.

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Las personas que experimentan síntomas seudopsicóticos (SSP) presentan un riesgo elevado de sufrir trastornos psicóticos. Sin embargo, asociaciones encontradas entre SSP y trastornos no psicóticos sugieren que la relevancia clínica de los SSP no se limita a la psicosis y por lo tanto, investigar el rol de síntomas adicionales tales como la depresión, puede mejorar la capacidad de predecir el riesgo de desarrollar trastornos psicóticos. Asimismo, estudiar las habilidades en teoría de la mente (ToM), área cognitiva que sufre alteraciones en pacientes con esquizofrenia, en adolescentes de la pobl

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18

Ragazzi, Taciana Cristina Carvalho. "Experiências tipo-psicóticas na população geral: Evidências de fidedignidade e validade da Escala de Avaliação das Experiências Psíquicas na Comunidade (Community Assessement Psychic Experiences - CAPE) e caracterização de amostra brasileira." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/17/17148/tde-26042018-133509/.

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Existem evidências de que as manifestações psicóticas não são vivenciadas apenas por pessoas diagnosticadas com transtornos mentais, mas também por pessoas saudáveis da população geral, as denominadas experiências tipo-psicóticas. A Escala de Avaliação das Experiências Psíquicas na Comunidade (CAPE) é um instrumento usado em pesquisas epidemiológicas e foi desenvolvido especificamente para a detecção e avaliação da frequência de experiências tipo-psicóticas na população geral. A CAPE, em sua apresentação original é composta por 42 itens, distribuídos em três dimensões: positiva, negativa e dep

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19

Ames, Catherine. "Developing a mindfulness based cognitive therapy service for young people." Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/psychotic-like-experiences-in-children-an-examination-of-associated-psychological-factors(fd973136-e5d8-4f6e-88a4-6ace6eb89db0).html.

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Mindfulness Based Cognitive Therapy (MBCT) has been shown to be effective in preventing relapse of depression in adults who have experienced multiple episodes of depression and is recommended in the NICE guidelines (2009). More recent evidence has also indicated its efficacy in helping adults who are actively depressed. Increasing numbers of young people are diagnosed with depression. Depression is a disorder characterised by a recurrent course and there is notable continuity of depression into adulthood. Depression in children and young people is associated with significant impairment. This i

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20

Mallet, Jasmina. "Marqueurs neurodéveloppementaux, cognition et facteurs environnementaux précoces et tardifs dans le phénotype psychotique des pathologies mentales Heavy cannabis use prior psychosis in schizophrenia : clinical, cognitive and neurological evidences for a new endophenotype? Etude et apport de la latéralité comme marqueur neurodéveloppemental dans les troubles schizophréniques et bipolaires Cigarette smoking and schizophrenia : a specific clinical and therapeutic profile? Results from the Face-Schizophrenia cohort Tobacco smoking is associated with antipsychotic medication, physical aggressiveness and alcohol use disorder in schizophrenia : results from the Face-SZ national cohort Tabagisme et schizophrénie, impact sur la cognition Tobacco smoking and psychotic-like experiences in a general population sample Poster congrès français de psychiatrie 2018 : Expériences psychotiques chez 50 patients adolescents hospitalisés pour la 1ère fois : approche trans-diagnostique et prospective avec la PQ16." Thesis, Sorbonne Paris Cité, 2018. https://wo.app.u-paris.fr/cgi-bin/WebObjects/TheseWeb.woa/wa/show?t=2403&f=17360.

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Les maladies mentales représentent un ensemble catégoriel très hétérogène, même au sein d’une entité nosographique. L’approche multifactorielle rend compte de l’hétérogénéité clinique des troubles mentaux et du continuum entre certaines dimensions cliniques, voire entre le normal et le pathologique. Parmi ces dimensions, le phénotype psychotique constitue une dimension essentielle du trouble schizophrénique. L’approche dimensionnelle permet d’envisager la recherche d’expériences psychotiques dans la plupart des troubles mentaux ainsi qu’en population générale. Nous faisons l’hypothèse générale

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21

"Cannabis Use, Psychotic-like Experiences, and Vascular Risk in Young Adults." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.40726.

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abstract: There is a robust association between psychosis and cannabis use, but the mechanisms underlying this relation are poorly understood. Because both psychosis and cannabis use have been linked to cardiovascular problems, it is possible that cannabis use exacerbates an underlying vascular vulnerability in individuals prone to psychosis. To investigate microvascular differences in individuals with psychotic symptoms and cannabis use, the current study tested associations between psychotic-like experiences, cannabis use, and retinal vessel diameter in 101 young adults (mean age=19.37 years

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22

Bourque, Josiane. "Developmental neurocognitive pathway of psychosis proneness and the impact of cannabis use." Thèse, 2018. http://hdl.handle.net/1866/21834.

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