A qualitative comparison of psychotic‐like phenomena in clinical and non‐clinical populations
Abstract
Objectives. To explore the nature and context of psychotic‐like phenomena in clinical (C) and non‐clinical (NC) participants, and to investigate whether the factors involved with triggering a psychotic‐like ‘out‐of‐the‐ordinary’ experience (OOE) can be distinguished from those determining its clinical consequences. Design and methods. Qualitative data were collected by semi‐structured interviews, and analysed using interpretative phenomenological analysis (IPA). Twelve participants, who reported OOEs starting in the last 5 years, were split into C and NC groups depending on whether they were involved with mental‐health services as a result of their experiences. Inter‐group comparisons of emergent themes were made. Results. Inter‐group similarities were found in the triggers and subjective nature of experiences, with clearer group differences in the inter‐personal and background personal contexts, and how the experiences were incorporated into their lives. In particular, the inter‐personal theme of validation was identified as important in distinguishing the clinical consequences of OOEs. Conclusions. It is not the OOE itself that determines the development of a clinical condition, but rather the wider personal and interpersonal contexts that influence how this experience is subsequently integrated. Theoretical implications for the refinement of psychosis models are outlined, and clinical implications for the validation and normalization of psychotic‐like phenomena are proposed.
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Research points to the importance of the interpersonal context when integrating out of ordinary experiences into one's life.
“Research points to the importance of the interpersonal context - awareness of the other's views as pathologising or normalising - when integrating out of ordinary experiences into one's life, including the opinions of significant others and professionals that people seek help from (Heriot-Maitland et al., 2012; Sedláková & Řiháček, 2016).”
From Psychosis or spiritual emergency? A Foucauldian discourse analysis of case reports of extreme mental states in the context of meditation (2019) · cites this paper as Heriot-Maitland et al., 2012
Voice-hearing in religious contexts may become more culturally appropriate over time.
“and voice-hearing in religious contexts may become more culturally appropriate over time [70].”
From The “common” experience of voice-hearing and its relationship with shame and guilt: a systematic review (2022) · cites this paper as [70]
Having a context for unusual experiences and/or beliefs makes a difference in terms of whether they lead to diagnosable mental health difficulties or become integrated into one's life without causing functional disruption.
“The higher scores on ‘magical thinking’ in the face of low scores on other schizotypy dimensions are in line with research showing that having a context for unusual experiences and/or beliefs makes a difference in terms of whether they lead to diagnosable mental health difficulties or whether they become integrated into one's life without causing a functional disruption (Brett et al., 2014, Heriot”
From Schizotypy and mindfulness: Magical thinking without suspiciousness characterizes mindfulness meditators (2016) · cites this paper as Heriot-Maitland et al., 2012
Cites
Diagnostic and Statistical Manual of Mental Disorders
American Psychiatric Association (2022) · doi:10.1176/appi.books.9780890425787 · Cited by 23,476 · see citing works
Interpretative Phenomenological Analysis: Theory, Method and Research
(2010) · QMiP Bulletin · doi:10.53841/bpsqmip.2010.1.10.44 · Cited by 8,189 · see citing works
Understanding and Evaluating Qualitative Research
Fossey, E., Harvey, C., Mcdermott, F., & Davidson, L. (2002) · Australian & New Zealand Journal of Psychiatry · doi:10.1046/j.1440-1614.2002.01100.x · Cited by 2,311 · see citing works
A cognitive model of the positive symptoms of psychosis
GARETY, P. A., KUIPERS, E., FOWLER, D., FREEMAN, D., & BEBBINGTON, P. E. (2001) · Psychological Medicine · doi:10.1017/s0033291701003312 · Cited by 1,546 · see citing works
Interpretative Phenomenological Analysis
Smith, J. A., & Eatough, V. (2007) · SAGE Publications Ltd eBooks · doi:10.4135/9781446207536.d10 · Cited by 872 · see citing works
Trauma and posttraumatic stress disorder in severe mental illness.
Mueser, K. T., Goodman, L. B., Trumbetta, S. L., Rosenberg, S. D., Osher, F. C., Vidaver, R. M., Auciello, P., & Foy, D. W. (1998) · Journal of Consulting and Clinical Psychology · doi:10.1037//0022-006x.66.3.493 · Cited by 790 · see citing works
Trauma and posttraumatic stress disorder in severe mental illness.
Mueser, K. T., Goodman, L. B., Trumbetta, S. L., Rosenberg, S. D., Osher, F. C., Vidaver, R., Auciello, P., & Foy, D. W. (1998) · Journal of Consulting and Clinical Psychology · doi:10.1037/0022-006x.66.3.493 · Cited by 790 · see citing works
Psychotic symptoms in non-clinical populations and the continuum of psychosis
Verdoux, H., & van Os, J. (2002) · Schizophrenia Research · doi:10.1016/s0920-9964(01)00352-8 · Cited by 557 · see citing works
Distribution of hallucinations in the population
Tien, A. Y. (1991) · Social Psychiatry and Psychiatric Epidemiology · doi:10.1007/bf00789221 · Cited by 527 · see citing works
We'll fight it as long as we can: Coping with the onset of Alzheimer's disease
Clare, L. (2002) · Aging & Mental Health · doi:10.1080/13607860220126826 · Cited by 293 · see citing works
Spiritual Experience and Psychopathology
Fulford, K. W. M., & Jackson, M. C. (1997) · Philosophy, psychiatry & psychology · doi:10.1353/ppp.1997.0002 · Cited by 267 · see citing works
The Use of Cognitive Behavior Therapy with a Normalizing Rationale in Schizophrenia
Kingdon, D., & TUKKINGTON, D. (1991) · The Journal of Nervous and Mental Disease · doi:10.1097/00005053-199104000-00005 · Cited by 195 · see citing works
Environmental risk factors for psychosis
Dean, K., & Murray, R. M. (2005) · Dialogues in Clinical Neuroscience · doi:10.31887/dcns.2005.7.1/kdean · Cited by 185 · see citing works
Knight, M. T. D., Wykes, T., & Hayward, P. (2003) · Journal of Mental Health · doi:10.1080/0963823031000118203 · Cited by 150 · see citing works
Self-citationPsychosis and spirituality : exploring the new frontier
Clarke, I. (2001) · Whurr eBooks · Cited by 109 · see citing works
Brett, C. M. C., Peters, E. P., Johns, L. C., Tabraham, P., Valmaggia, L. R., & Mcguire, P. K. (2007) · British Journal of Psychiatry · doi:10.1192/bjp.191.51.s23 · Cited by 97 · see citing works
Self-citationPerry, B. M., Taylor, D., & Shaw, S. (2007) · Journal of Mental Health · doi:10.1080/09638230701496360 · Cited by 93 · see citing works
Psychotic-like experiences, appraisals, and trauma
Lovatt, A., Mason, O., Brett, C., & Peters, E. (2010) · Journal of Nervous & Mental Disease · doi:10.1097/nmd.0b013e3181f97c3d · Cited by 80 · see citing works
Self-citationEngdahl, B. E., Speed, N., Eberly, R. E., & SCHWARTZ, J. (1991) · The Journal of Nervous and Mental Disease · doi:10.1097/00005053-199104000-00001 · Cited by 78 · see citing works
Hearing Voices in a Non-Psychiatric Population
Lawrence, C., Jones, J. D., & Cooper, M. J. (2010) · Behavioural and Cognitive Psychotherapy · doi:10.1017/s1352465810000172 · Cited by 66 · see citing works
Dangerous sports and recreational drug‐use: rationalizing and contextualizing risk
Larkin, M., & Griffiths, M. D. (2004) · Journal of Community & Applied Social Psychology · doi:10.1002/casp.770 · Cited by 62 · see citing works
Cognitive Science and Hermeneutic Explanation: Symbiotic or Incompatible Frameworks?
Drury, J. E. (1994) · Project Muse (Johns Hopkins University) · Cited by 17 · see citing works
Anomalous experiences and cognitive processing in the development of psychosis.
Brett, C. (2005) · Europe PMC (PubMed Central) · Cited by 6 · see citing works
Flagged first, then by citations
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Hallucinations: A Systematic Review of Points of Similarity and Difference Across Diagnostic Classes
Waters, F., & Fernyhough, C. (2016) · Schizophrenia Bulletin · doi:10.1093/schbul/sbw132 · Cited by 315 · see citing works
Longden, E., Madill, A., & Waterman, M. G. (2012) · Psychological Bulletin · doi:10.1037/a0025995 · Cited by 248 · see citing works
Peters, E., Ward, T., Jackson, M., Morgan, C., Charalambides, M., McGuire, P., Woodruff, P., Jacobsen, P., Chadwick, P., & Garety, P. A. (2016) · World Psychiatry · doi:10.1002/wps.20301 · Cited by 151 · see citing works
Self-citationUnderstanding Psychosis and Schizophrenia
Cooke, A. (2014) · Cited by 162 · see citing works
Brett, C., Heriot‐Maitland, C., McGuire, P., & Peters, E. (2014) · British Journal of Clinical Psychology · doi:10.1111/bjc.12036 · Cited by 99 · see citing works
Self-citationCompassion Focused Approaches to Working With Distressing Voices
Heriot-Maitland, C., McCarthy‐Jones, S., Longden, E., & Gilbert, P. (2019) · Frontiers in Psychology · doi:10.3389/fpsyg.2019.00152 · Cited by 82 · see citing works
Self-citationOuwehand, E., Braam, A. W., Renes, J., Muthert, H., Stolp, H. A., Garritsen, H. H., & Zock, H. (2019) · The Journal of Nervous and Mental Disease · doi:10.1097/nmd.0000000000000965 · Cited by 58 · see citing works
Cognitive and neural models of threat appraisal in psychosis: a theoretical integration
Underwood, R., Kumari, V., & Peters, E. (2016) · Psychiatry Research · doi:10.1016/j.psychres.2016.03.016 · Cited by 51 · see citing works
Self-citationSchizophrenia or Possession? A Reply to Kemal Irmak and Nuray Karanci
Scrutton, A. P. (2015) · Journal of Religion and Health · doi:10.1007/s10943-015-0027-4 · Cited by 51 · see citing works
Stigma and need for care in individuals who hear voices
Vilhauer, R. P. (2017) · International Journal of Social Psychiatry · doi:10.1177/0020764016675888 · Cited by 50 · see citing works
Murphy, J., McBride, O., Fried, E. I., & Shevlin, M. E. (2017) · Schizophrenia Bulletin · doi:10.1093/schbul/sbx134 · Cited by 40 · see citing works
Dein, S. L., & Cook, C. C. H. (2015) · Mental Health Religion & Culture · doi:10.1080/13674676.2014.1002761 · Cited by 34 · see citing works
Conceptual and clinical implications of a “Haunted People Syndrome”.
Laythe, B. R., Houran, J., Dagnall, N., & Drinkwater, K. G. (2021) · Spirituality in Clinical Practice · doi:10.1037/scp0000251 · Cited by 28 · see citing works
Cooke, A., & Kinderman, P. (2017) · Journal of Humanistic Psychology · doi:10.1177/0022167817745621 · Cited by 28 · see citing works
Roxburgh, E. C., & Evenden, R. E. (2016) · European Journal of Psychotherapy & Counselling · doi:10.1080/13642537.2016.1170059 · Cited by 27 · see citing works
Moving from risk to resilience in psychosis research
Thakkar, K. N., McCleery, A., Minor, K. S., Lee, J., Humpston, C. S., Chopik, W. J., Burt, S. A., Pearson, A. L., Ungar, M. T., & Park, S. (2023) · Nature Reviews Psychology · doi:10.1038/s44159-023-00205-9 · Cited by 25 · see citing works
Trauma and Social Pathways to Psychosis, and Where the Two Paths Meet
Heriot-Maitland, C., Wykes, T., & PETERS, E. R. (2022) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2021.804971 · Cited by 25 · see citing works
Self-citationRoxburgh, E. C., & Evenden, R. E. (2016) · Counselling and Psychotherapy Research · doi:10.1002/capr.12077 · Cited by 25 · see citing works
Holt, L., & Tickle, A. (2013) · Psychology and Psychotherapy Theory Research and Practice · doi:10.1111/papt.12017 · Cited by 24 · see citing works
van der Tempel, J., & Moodley, R. (2020) · Mental Health Religion & Culture · doi:10.1080/13674676.2020.1823349 · Cited by 22 · see citing works
Toh, W. L., Thomas, N., Robertson, M., & Rossell, S. L. (2020) · Psychiatry Research · doi:10.1016/j.psychres.2020.112987 · Cited by 22 · see citing works
Which psychotic experiences are associated with a need for clinical care?
Brett, C. M. C., Peters, E. R., & McGuire, P. K. (2015) · European Psychiatry · doi:10.1016/j.eurpsy.2014.12.005 · Cited by 21 · see citing works
Self-citation(2017) · doi:10.1093/schbul/sbx029 · Cited by 20 · see citing works
Self-citationVolpato, E., Cavalera, C., Castelnuovo, G., Molinari, E., & Pagnini, F. (2022) · BMC Psychiatry · doi:10.1186/s12888-022-03902-6 · Cited by 33 · see citing works
“Furtherly, distressing voice-hearing may improve in response to specific coaching [69] and voice-hearing in religious contexts may become more culturally appropriate over time [70].”
BackgroundHarris, O., Andrews, C., Broome, M. R., Kustner, C., & Jacobsen, P. C. (2022) · British Journal of Clinical Psychology · doi:10.1111/bjc.12368 · Cited by 21 · see citing works
Underwood, R., Kumari, V., & Peters, E. (2016) · Psychological Medicine · doi:10.1017/s0033291715002780 · Cited by 14 · see citing works
Self-citationAntonova, E., Amaratunga, K., Wright, B., Ettinger, U., & Kumari, V. (2016) · Schizophrenia Research: Cognition · doi:10.1016/j.scog.2016.05.001 · Cited by 14 · see citing works
“The higher scores on ‘magical thinking’ in the face of low scores on other schizotypy dimensions are in line with research showing that having a context for unusual experiences and/or beliefs makes a difference in terms of whether they lead to diagnosable mental health difficulties or whether they become integrated in…”
BackgroundResultHarper, D. J., & Timmons, C. (2019) · Psychology and Psychotherapy Theory Research and Practice · doi:10.1111/papt.12250 · Cited by 13 · see citing works
Scrutton, A. P. (2015) · Religious Studies · doi:10.1017/s0034412515000360 · Cited by 12 · see citing works
Roxburgh, E. C., & Evenden, R. E. (2016) · British Journal of Guidance and Counselling · doi:10.1080/03069885.2016.1213375 · Cited by 11 · see citing works
The nuances of “the social cure” for people who experience psychosis
Hogg, L. I., Smith, L. G. E., Morrison, A. P., Prosser, A. M. B., & Kurz, T. (2022) · European Journal of Social Psychology · doi:10.1002/ejsp.2848 · Cited by 11 · see citing works
van der Leer, L., Hartig, B., Goldmanis, M., & McKay, R. T. (2017) · Clinical Psychological Science · doi:10.1177/2167702617698811 · Cited by 7 · see citing works
Spiritual, Religious, and Faith-Based Practices in Chronicity
Hatala, A. R., & Roger, K. S. (2021) · Routledge eBooks · doi:10.4324/9781003043508 · Cited by 8 · see citing works
Rowan, K., & Dwyer, K. (2015) · Mental Health Religion & Culture · doi:10.1080/13674676.2015.1077211 · Cited by 8 · see citing works
Heriot-Maitland, C., Vitoratou, S., PETERS, E. R., Hermans, K. S. F. M., Wykes, T., & Brett, C. (2023) · Psychology and Psychotherapy Theory Research and Practice · doi:10.1111/papt.12445 · Cited by 7 · see citing works
Self-citationKaselionyte, J., & Gumley, A. (2017) · Mental Health, Religion & Culture · doi:10.1080/13674676.2017.1422237 · Cited by 7 · see citing works
Coughlan, H., Humphries, N., Clarke, M. C., Healy, C., & Cannon, M. D. (2021) · Irish Journal of Psychological Medicine · doi:10.1017/ipm.2021.31 · Cited by 8 · see citing works
Cognitive Behavioural Therapies for Psychosis
Johns, L., Isham, L., & Manser, R. (2019) · Elsevier eBooks · doi:10.1016/b978-0-12-815012-2.00015-8 · Cited by 7 · see citing works
Clarke, I. (2013) · doi:10.1002/9781118499184.ch11 · Cited by 7 · see citing works
Kaselionyte, J., & Gumley, A. (2019) · Transcultural Psychiatry · doi:10.1177/1363461519861842 · Cited by 6 · see citing works
“Qualitative research points to the importance of the interpersonal context when integrating out-of-the-ordinary experiences into a person’s life, including the opinions of significant others and spiritual or medical professionals (Heriot-Maitland et al., 2012; Sedláková & Řiháček, 2016).”
BackgroundRomaioli, D., Chiara, G., Faccio, E., & Miglietta, R. (2022) · Counselling Psychology Quarterly · doi:10.1080/09515070.2022.2105306 · Cited by 7 · see citing works
Underwood, R., Mason, L., O’Daly, O., Dalton, J., Simmons, A., Barker, G. J., PETERS, E. R., & Kumari, V. (2021) · Schizophrenia · doi:10.1038/s41537-021-00173-0 · Cited by 5 · see citing works
Self-citationWhen Spirit Calls: A Phenomenological Approach to Healthy Voice-Hearers
Luhrmann, T., Chen, X., Baumeister, D., & Peters, E. (2023) · Schizophrenia Bulletin Open · doi:10.1093/schizbullopen/sgad025 · Cited by 6 · see citing works
Self-citationImmediate and short term effects of values-based interventions on paranoia.
Evans, N., Ellett, L., Carpenter, R., & Kingston, J. (2019) · Journal of Behavior Therapy and Experimental Psychiatry · doi:10.1016/j.jbtep.2019.101500 · Cited by 4 · see citing works
A Conceptual Matrix for Mapping Encounter Experiences
Dagnall, N., Drinkwater, K. G., & Houran, J. (2021) · Academia Letters · doi:10.20935/al3955 · Cited by 5 · see citing works
Yehya, A., Khaled, S. M., Sommer, I. E., Woodruff, P. W. R., & Daher‐Nashif, S. (2022) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2022.988913 · Cited by 5 · see citing works
Can jinn be a tonic? The therapeutic value of spirit-related beliefs, practices and experiences
Scrutton, A. P. (2016) · Filosofia Unisinos · doi:10.4013/fsu.2016.172.12 · Cited by 4 · see citing works
Harper, D. J. (2021) · Theory & Psychology · doi:10.1177/09593543211000429 · Cited by 10 · see citing works
Spikol, A., & Murphy, J. (2019) · Clinical Schizophrenia & Related Psychoses · doi:10.3371/csrp.spjm.032819 · Cited by 4 · see citing works
Conceptualizing multiplicity spectrum experiences: A systematic review and thematic synthesis
Eve, Z., Heyes, K., & Parry, S. L. (2023) · Clinical Psychology & Psychotherapy · doi:10.1002/cpp.2910 · Cited by 3 · see citing works
Clarke, I. (2014) · Self & Society · doi:10.1080/03060497.2014.11084387 · Cited by 3 · see citing works
Unsolicited reports of voice hearing in the general population: a study using a novel method
Vilhauer, R. P., & Sharma, H. (2018) · Psychosis · doi:10.1080/17522439.2018.1485727 · Cited by 3 · see citing works
Merola, G. P., Patti, A., Benedetti, D., Bozza, B., Ballerini, A., & Ricca, V. (2023) · Early Intervention in Psychiatry · doi:10.1111/eip.13490 · Cited by 2 · see citing works
Investigating Schizotypy and Crime‐Based Reasoning with Qualitative Methods
Wilkinson, D., Caulfield, L., & Jones, T. J. (2013) · The Howard Journal of Criminal Justice · doi:10.1111/hojo.12059 · Cited by 2 · see citing works
Clinical psychologists' use of transformative models of psychosis
Cooke, A., & Brett, C. (2019) · Clinical Psychology & Psychotherapy · doi:10.1002/cpp.2411 · Cited by 2 · see citing works
Amos, I. (2021) · Transpersonal Psychology Review · doi:10.53841/bpstran.2021.23.1.32 · Cited by 2 · see citing works
Scrutton, T. (2018) · Think · doi:10.1017/s1477175618000131 · Cited by 1 · see citing works
Cognitive Behavioural Therapy for Psychosis
Manser, R., & Johns, L. (2023) · Springer eBooks · doi:10.1007/978-3-031-27003-1_9 · Cited by 1 · see citing works
Perseverative Cognition and Psychotic-Like Experiences in Young Adults: A Cross-Lagged Panel Model
Ballesio, A., Zagaria, A., & Lombardo, C. (2023) · Psychopathology · doi:10.1159/000528859 · Cited by 1 · see citing works
The Impact of Spirituality and Trauma on Appraisals of Psychotic-Like Experiences
Isaac, K. S. (2017) · CUNY Academic Works (City University of New York) · Cited by 1 · see citing works
Clarke, I. (2017) · Self & Society · doi:10.1080/03060497.2017.1290454
Mixed methods investigation of distress related to psychosis experiences
Akoral, M. (2019) · Queen Margaret University Publications Repository (Queen Margaret University)
Roxburgh, E. C., & Evenden, R. E. (2021) · Routledge eBooks · doi:10.4324/9781003187943-3
Benign and Pathological Religious Experience
Porcher, J. E. (2022) · Revista Psicopatologia Fenomenológica Contemporânea · doi:10.37067/rpfc.v11i1.1104
Expériences spirituelles et psychoses : que pouvons-nous en dire aujourd’hui ?
Quintin, J., Sauveur, L., & Dumas, M. (2022) · Studies in Religion/Sciences Religieuses · doi:10.1177/00084298221111699
British Psychological Society (2013) · Clinical Psychology Forum · doi:10.53841/bpscpf.2013.1.243.1
Embracing unknowing: Report on ‘Clinical approaches to exceptional experiences; the expert meeting’
Clarke, I. (2023) · Psychotherapy Section Review · doi:10.53841/bpspsr.2023.1.68.8
Conflicted Stories: A Case of Expanded Reality
Clarke, I., & Tilda (2023) · Springer eBooks · doi:10.1007/978-3-031-27003-1_34
A Service Evaluation of the U.K. Spiritual Crisis Network
Rush, M., Lancaster, L., & Lukoff, D. G. (2025) · Journal of Humanistic Psychology · doi:10.1177/00221678251357973
Grand manuel de parapsychologie scientifique
Évrard, R., & Rabeyron, T. (2025) · Dunod eBooks · doi:10.3917/dunod.evrar.2025.01.0351
Goldmanis, M., McKay, R., van der Leer, L., & Hartig, B. (2017) · OSF Preprints (OSF Preprints)
Goncharova, M., Jacquet, C., IJzerman, H., & Bortolon, C. (2026) · Schizophrenia Bulletin · doi:10.1093/schbul/sbag046
- Authors
- Heriot‐Maitland, C., Knight, M., & Peters, E.
- Affiliations
- King's College London (GB)
- Venue
- British Journal of Clinical Psychology
- Publisher
- Wiley
- Published
- 2011-04-15
- Volume
- 51
- Issue
- 1
- Pages
- 37-53
- ISSN
- 0144-6657 (ISSN-L)
- 2044-8260
- OpenAlex
- W1517759153
- Cited by
- 73
- References
- 22
- Citations by year
- 2026: 1 · 2025: 2 · 2023: 9 · 2022: 8 · 2021: 8 · 2020: 2 · 2019: 9 · 2018: 2 · 2017: 8 · 2016: 11 · 2015: 5 · 2014: 2 · 2013: 5
- FWCI
- 1.76
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- British Journal of Clinical Psychology (publishedVersion)
- PubMed (publishedVersion)
- Research Portal (King's College London) (submittedVersion)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
- Life Sciences › Neuroscience › Cognitive Neuroscience › Hallucinations in medical conditions
- Keywords
- validation, interpersonal context, psychosis model, mental health service utilization
- MeSH terms
- Adult, Attitude to Health, Emotions, England, Female, Humans, Interpersonal Relations, Interview, Psychological, Male, Mental Health Services, Middle Aged, Psychotic Disorders, Social Isolation, Stress, Psychological, Spirituality, Young Adult
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