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Haywood D, Kotov R, Krueger RF, Wright AGC, Forbes MK, Dauer E, Baughman FD, Rossell SL, Hart NH. Reconceptualizing mental health in cancer survivorship. Trends Cancer 2024; 10:677-686. [PMID: 38890021 DOI: 10.1016/j.trecan.2024.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/25/2024] [Accepted: 05/28/2024] [Indexed: 06/20/2024]
Abstract
Mental health for cancer survivors in both research and clinical applications has strongly adopted a traditional nosological approach, involving the classification of psychopathology into discrete disorders. However, this approach has recently faced considerable criticism due to issues such as high comorbidity and within-disorder symptom heterogeneity across populations. Moreover, there are additional specific issues impacting the validity of traditional approaches in cancer survivorship populations, including the physiological effects of cancer and its treatments. In response, we provide the case for the hierarchical dimensional approach within psycho-oncology, in particular the Hierarchical Taxonomy of Psychopathology (HiTOP). We discuss not only the potential utility of HiTOP to research and clinical applications within psycho-oncology, but also its limitations, and what is required to apply this approach within cancer survivorship.
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Affiliation(s)
- Darren Haywood
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia; Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia; Department of Psychiatry, Melbourne Medical School, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia; School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia.
| | - Roman Kotov
- Department of Psychiatry & Behavioral Health, Stony Brook University, Stony Brook, NY, USA
| | - Robert F Krueger
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Aidan G C Wright
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, USA; Eisenberg Family Depression Center, University of Michigan, Ann Arbor, MI, USA
| | - Miriam K Forbes
- School of Psychological Sciences, Macquarie University, Sydney, NSW, Australia
| | - Evan Dauer
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia; Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
| | - Frank D Baughman
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia
| | - Susan L Rossell
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia; Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Nicolas H Hart
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia; Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia; Exercise Medicine Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia; Cancer and Palliative Care Outcomes Centre, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD, Australia; Institute for Health Research, University of Notre Dame Australia, Perth, WA, Australia
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Haywood D, Baughman FD, Dauer E, Haywood J, Rossell S, Hart NH. It's about time: mitigating cancer-related cognitive impairments through findings from computational models of the Wisconsin Card Sorting Task. BMC Cancer 2024; 24:798. [PMID: 38965483 PMCID: PMC11223404 DOI: 10.1186/s12885-024-12545-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/20/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Many cancer survivors experience cancer-related cognitive impairment (CRCI), often with significant negative consequences across various life domains. Emerging evidence suggests that allowing additional time to process information before acting may be a useful strategy for those with CRCI to mitigate some of its impacts. The Wisconsin Card Sorting Task (WCST), a measure of general cognition, has shown that for some cancer survivors, longer task completion time facilitates similar task performance outcomes to control populations concerning perseveration errors; a key performance metric of the WCST. However, assessing if this strategy may be useful, as well as determining for whom it may be useful, with regard to strengths and weaknesses among select cognitive domains, is challenging due to factors such as the problem of task impurity. Accordingly, this study provides an initial computational and experimental assessment of whether additional time to process information before acting is a useful strategy for those with CRCI. METHODS We simulated individual cognitive differences observed in humans by varying contributions of executive functioning components (updating, shifting, inhibition) to yield 48 distinct computational models of the WCST. Our main manipulation was then to provide these models with more or less time (at three levels of 20, 40 and 60 cycles) before models executed an action to sort a given card. We compared the number of perseveration errors on the WCST produced by the computational models. Additionally, we determined models that simulated the performance of cancer survivors on the WCST by comparing the number of perseveration errors produced by the models to human data. RESULTS Additional processing time resulted in the models producing significantly fewer perseveration errors, supporting our hypothesis. In addition, 8 unique models simulated the performance of cancer survivors on the WCST. Additional time appeared to have a positive influence on performance primarily by mitigating the impacts of severe inhibition impairments. For more severe global executive function impairments, a substantial amount of additional time was required to mitigate the impacts of the impairments. For the most severe impairments, additional time was unable to adequately mitigate the impact on performance. CONCLUSION Additional processing time may be a useful strategy to rectify perseveration errors among cancer survivors with CRCI. Our findings have implications for the development of practical strategies, such as workload and deadline management in occupational settings, which may mitigate the negative effects of CRCI.
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Affiliation(s)
- Darren Haywood
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia.
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia.
- Department of Psychiatry, Melbourne Medical School, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia.
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia.
| | - Frank D Baughman
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia
| | - Evan Dauer
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
| | - Jennifer Haywood
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia
| | - Susan Rossell
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
- Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Nicolas H Hart
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
- Exercise Medicine Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia
- Cancer and Palliative Care Outcomes Centre, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD, Australia
- Institute for Health Research, University of Notre Dame Australia, Perth, WA, Australia
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Haywood D, Henry M, Dauer E, Lederman O, Farley M, Henneghan AM, O'Connor M, Jefford M, Rossell SL, Hart NH. Cancer-related cognitive impairment as a key contributor to psychopathology in cancer survivors: implications for prevention, treatment and supportive care. Support Care Cancer 2024; 32:480. [PMID: 38954104 PMCID: PMC11219369 DOI: 10.1007/s00520-024-08696-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024]
Abstract
A significant proportion of cancer survivors will experience some form of mental health compromise across domains including mood, anxiety, psychosis, eating disorders, and substance use. This psychopathology within cancer survivors is related to a range of negative outcomes and can also have a substantial negative impact on quality of life. Along with psychopathology, cognitive impairments are also commonly experienced, resulting in deficits in memory, reasoning, decision-making, speed of processing, and concentration, collectively referred to as cancer-related cognitive impairment (CRCI). Within the non-oncology literature, cognitive deficits are consistently demonstrated to be a key transdiagnostic aetiological feature of psychopathology, functionally contributing to the development and perpetuation of symptoms. Whilst there is an acknowledgement of the role mental health concerns might play in the development of and perception of CRCI, there has been limited acknowledgement and research exploring the potential for CRCI to functionally contribute toward the development of transdiagnostic psychopathology in cancer survivors beyond simply psychosocial distress. Given the theoretical and empirical evidence suggesting cognitive deficits to be an aetiological factor in psychopathology, we provide a rationale for the potential for CRCI to be a factor in the development and perpetuation of transdiagnostic psychopathology in cancer survivors. This potential functional association has significant implications for risk identification, prevention, treatment, and supportive cancer care approaches regarding psychopathology in cancer survivorship. We conclude by providing directions for future research in this area.
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Affiliation(s)
- Darren Haywood
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia.
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia.
- Department of Psychiatry, Melbourne Medical School, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia.
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia.
| | - Melissa Henry
- Department of Otolaryngology-Head and Neck Surgery, McGill University Health Centre, Montreal, QC, Canada
- Department of Oncology, McGill University Health Centre, Montreal, QC, Canada
- Lady Davis Research Institute, McGill University, Montreal, QC, Canada
- Research Institute of McGill University Health Centre, Montreal, QC, Canada
| | - Evan Dauer
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
| | - Oscar Lederman
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia
- School of Health Science, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
| | - Morgan Farley
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia
| | - Ashley M Henneghan
- School of Nursing, University of Texas at Austin, Austin, TX, USA
- Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Moira O'Connor
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia
| | - Michael Jefford
- Department of Health Services Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Australian Cancer Survivorship Centre, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Susan L Rossell
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
- Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Nicolas H Hart
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, Sydney, NSW, 2030, Australia
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
- Exercise Medicine Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia
- Cancer and Palliative Care Outcomes Centre, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD, Australia
- Institute for Health Research, University of Notre Dame Australia, Perth, WA, Australia
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Wong A, Baughman FD, Mullan BA, Heslop K, Dauer E, Haywood D. Can neurocognitive performance account for dimensional paranoid ideation? Cogn Neuropsychiatry 2024; 29:242-255. [PMID: 39499139 DOI: 10.1080/13546805.2024.2425322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 10/30/2024] [Indexed: 11/07/2024]
Abstract
OBJECTIVE Paranoid ideation underlies numerous psychological disorders and has debilitating effects on daily life. Deficits in neurocognition are highlighted as a contributing factor to paranoid-related disorders, but the impact on the symptom-level experience of paranoid ideation is unclear. This study aimed to employ a dimensional approach to understand the association between neurocognition and the severity and presence of paranoid ideation. METHODS 400 participants, representative of the general population of the USA, completed an online questionnaire consisting of the Brief Symptom Inventory-53, and demographic and clinical questions. The participants then completed four computerised neurocognitive tasks measuring working memory, shifting, inhibition, and speed of processing. RESULTS Speed of processing accounted for unique variance in the severity of paranoid ideation with a small effect size, after controlling for covariates. Working memory, shifting, and inhibition could not uniquely or collectively, account for paranoid ideation. Neurocognitive performance could not distinguish between individuals with and without paranoid ideation experiences. CONCLUSIONS This research supports the body of literature that speed of information processing may be a key feature of paranoid ideation. Future research should employ non-linear dynamic methods to better understand the potential interactions between neurocognitive components and how this may relate to paranoid ideation.
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Affiliation(s)
- Andrea Wong
- School of Psychological Sciences, Monash University, Melbourne, Australia
| | - Frank D Baughman
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, Australia
| | - Barbara A Mullan
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, Australia
| | - Karen Heslop
- School of Nursing, Faculty of Health Sciences, Curtin University, Bentley, Australia
| | - Evan Dauer
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, Australia
- Department of Psychiatry, Melbourne Medical School, Dentistry and Health Sciences, University of Melbourne, Parkville, Australia
| | - Darren Haywood
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, Australia
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, Australia
- Department of Psychiatry, Melbourne Medical School, Dentistry and Health Sciences, University of Melbourne, Parkville, Australia
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, Australia
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Haywood D, Kotov R, Krueger RF, Wright AGC, Forbes MK, Dauer E, Baughman FD, Rossell SL, Hart NH. Is it time to discard the Diagnostic and Statistical Manual of Mental Disorders (DSM) in psycho-oncology? Cancer Lett 2024; 589:216818. [PMID: 38554804 DOI: 10.1016/j.canlet.2024.216818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/12/2024] [Accepted: 03/12/2024] [Indexed: 04/02/2024]
Abstract
The conceptual basis of psychopathology within cancer survivorship is critical, as the chosen conceptualisation informs assessment and explanatory models, as well as interventions and supportive care approaches. The validity of a chosen conceptualisation of psychopathology is therefore paramount for ensuring cancer survivors receive high-quality and efficacious care and support that can be iteratively improved via coordinated research efforts. In this paper, we discuss the traditional diagnostic approach to conceptualising psychopathology within cancer care, including the diagnostic system the 'Diagnostic and Statistical Manual of Mental Disorders' (DSM) [1], and the significant issues it presents within cancer survivorship. We detail and discuss how an alternate conceptualisation of psychopathology may enhance both research and practice within psycho-oncology. We ultimately pose, and provide our perspective, on the question "Is it Time to Discard the DSM in Psycho-Oncology?"
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Affiliation(s)
- Darren Haywood
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia; Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia; Department of Psychiatry, Melbourne Medical School, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia; School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia.
| | - Roman Kotov
- Department of Psychiatry & Behavioral Health, Stony Brook University, Stony Brook, NY, USA
| | - Robert F Krueger
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - Aidan G C Wright
- Department of Psychology, University of Michigan, Ann Arbor, MI, USA; Eisenberg Family Depression Center, University of Michigan, Ann Arbor, MI, USA
| | - Miriam K Forbes
- School of Psychological Sciences, Macquarie University, Sydney, NSW, Australia
| | - Evan Dauer
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia; Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia
| | - Frank D Baughman
- School of Population Health, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia
| | - Susan L Rossell
- Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, VIC, Australia; Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Nicolas H Hart
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia; Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia; Exercise Medicine Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia; Cancer and Palliative Care Outcomes Centre, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD, Australia; Institute for Health Research, University of Notre Dame Australia, Perth, WA, Australia
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Haywood D, Dauer E, Baughman FD, Lawrence BJ, Rossell SL, Hart NH, O’Connor M. "Is My Brain Ever Going to Work Fully Again?": Challenges and Needs of Cancer Survivors with Persistent Cancer-Related Cognitive Impairment. Cancers (Basel) 2023; 15:5331. [PMID: 38001592 PMCID: PMC10669848 DOI: 10.3390/cancers15225331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/01/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Many cancer survivors experience cognitive impairments that impact memory, concentration, speed of information processing, and decision making. These impairments, collectively known as cancer-related cognitive impairments (CRCIs), are a key domain of unmet needs and can significantly impact a cancer survivor's identity and quality of life. However, there are no purpose-built, multi-domain, needs assessment tools specifically for CRCI. The development of such tools requires an in-depth understanding of cancer survivors' CRCI-specific challenges and associated needs. This study explored the challenges and associated needs of cancer survivors with persistent CRCI. An in-depth qualitative design using semi-structured interviews with (a) cancer survivors with perceived CRCI (n = 32) and (b) oncology health professionals (n = 19) was utilised. A reflexive thematic analysis of the interviews resulted in five overarching themes: (1) executing regular activities, (2) relational difficulties, (3) occupational functioning, (4) psychological distress, and (5) social functioning, as well as an additional informational needs domain. Ultimately, CRCI was found to directly produce a range of challenges that negatively, and persistently, impact cancer survivors' quality of life. Cancer survivors were also found to have a range of needs associated with these challenges. This research should be used to inform future challenges and needs assessment tools as well as treatment and supportive care priority areas directly relating to CRCI.
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Affiliation(s)
- Darren Haywood
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, NSW 2021, Australia;
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC 3800, Australia
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (E.D.); (S.L.R.)
- Department of Psychiatry, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC 3052, Australia
| | - Evan Dauer
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (E.D.); (S.L.R.)
| | - Frank D. Baughman
- School of Population Health, Curtin University, Bentley, WA 6102, Australia; (F.D.B.); (B.J.L.); (M.O.)
| | - Blake J. Lawrence
- School of Population Health, Curtin University, Bentley, WA 6102, Australia; (F.D.B.); (B.J.L.); (M.O.)
| | - Susan L. Rossell
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (E.D.); (S.L.R.)
- Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
| | - Nicolas H. Hart
- Human Performance Research Centre, INSIGHT Research Institute, Faculty of Health, University of Technology Sydney (UTS), Moore Park, NSW 2021, Australia;
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Park, SA 5042, Australia
- Cancer and Palliative Care Outcomes Centre, Faculty of Health, Queensland University of Technology (QUT), Brisbane City, QLD 4000, Australia
- Exercise Medicine Research Institute, School of Medical and Health Science, Edith Cowan University, Joondalup, WA 6027, Australia
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA 6160, Australia
| | - Moira O’Connor
- School of Population Health, Curtin University, Bentley, WA 6102, Australia; (F.D.B.); (B.J.L.); (M.O.)
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Haywood D, Baughman FD, Bosanac P, Johnston K, Gnatt I, Haywood J, Gullifer J, Rossell S. Research Directions for Leveraging and Supporting the Lived Experience of Mental Illness within Psychology. Healthcare (Basel) 2023; 11:2318. [PMID: 37628516 PMCID: PMC10454461 DOI: 10.3390/healthcare11162318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/03/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
This paper explores the lived experience of mental illness within the field of psychology across higher education and the mental health workforce. There is a high prevalence of mental health issues among psychology students and practitioners, and it is critical not only to provide support for these populations, but also to acknowledge the value of leveraging their lived experience within their education and practice. There has been increased interest in and advocacy for the involvement of those with lived experience of mental illness within mental healthcare service provision to improve patient experiences and outcomes. However, there have been limited acknowledgement and research regarding the role of psychologists with personal lived experiences of mental illness, and how to leverage this experience. Further, there are challenges faced by both psychology students and practising psychologists with lived experience that act as barriers to leveraging their unique skills and experiences. Psychology students with lived experience face stigma, inadequate support, and incongruence between the course material and their personal experiences. Similarly, practising psychologists with lived experience encounter stigma and isolation, indicating the need for a culture change that promotes transparency and understanding. The paper calls for research in five key directions to provide evidence that can be used to support and leverage lived experience in psychology.
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Affiliation(s)
- Darren Haywood
- School of Psychological Sciences, Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC 3800, Australia
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (P.B.)
- Department of Psychiatry, University of Melbourne, Parkville, VIC 3052, Australia
| | - Frank D. Baughman
- School of Population Health, Curtin University Western Australia, Bentley, WA 6102, Australia
| | - Peter Bosanac
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (P.B.)
- Department of Psychiatry, University of Melbourne, Parkville, VIC 3052, Australia
| | - Kim Johnston
- School of Psychological Sciences, Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC 3800, Australia
| | - Inge Gnatt
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (P.B.)
- Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
| | - Jennifer Haywood
- School of Population Health, Curtin University Western Australia, Bentley, WA 6102, Australia
| | - Judith Gullifer
- School of Psychological Sciences, Turner Institute of Brain and Mental Health, Monash University, Clayton, VIC 3800, Australia
| | - Susan Rossell
- Department of Mental Health, St. Vincent’s Hospital Melbourne, Fitzroy, VIC 3065, Australia; (P.B.)
- Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
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Perfectionistic Children and Their Parents: Is There Room for an Intergenerational Transmission? A Study of a Clinical Sample of Italian Children and Their Parents. CHILDREN 2023; 10:children10030460. [PMID: 36980018 PMCID: PMC10047207 DOI: 10.3390/children10030460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023]
Abstract
Introduction: The relationship between maladaptive perfectionism and Internalizing (ID) and Externalizing Disorders (ED) in children needs to be better understood, along with the intergenerational transmission of these traits from parents to children. The present work aimed to share light on both these issues. Method: 39 children with ID, 19 with ED, and their parents were recruited*. The Multidimensional Perfectionism Scale, the Big Five Inventory, the Child and Adolescent Perfectionism Scale, and the Hierarchical Personality Inventory for Children were used. The association between parent personality and perfectionism traits and children’s perfectionism dimensions was evaluated through hierarchical regression analysis. Results: ID and ED groups did not differ significantly concerning perfectionism. Fathers presented higher scores than mothers in Self-Oriented Perfectionism, Other-Oriented Perfectionism, and Socially-Prescribed Perfectionism. Parents of children with ID report higher levels of Obedience in their children, while parents of children with ED reported higher levels of Creativity and Perseverance. Significant associations were found between perfectionism in parents and their children, as well as between perfectionism and the personality of children. Conclusion: Results suggest a transdiagnostic nature of Perfectionism and support the transgenerational transmission of the personality traits investigated.
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Finding the Proportion of Females with Autistic Spectrum Disorder Who Develop Anorexia Nervosa, the True Prevalence of Female ASD and Its Clinical Significance. CHILDREN (BASEL, SWITZERLAND) 2023; 10:children10020272. [PMID: 36832401 PMCID: PMC9955974 DOI: 10.3390/children10020272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/24/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
It appears that up to 80% of females with autistic spectrum disorder (ASD) have not been diagnosed by the age of 18. This translates to a prevalence of about 5-6%, and if true, has serious implications for female mental health. One way of finding the true value is to use Bayes' Theorem with a comorbid condition as a more easily recognizable flag. An obvious choice is anorexia nervosa (AN), but it transpires that the proportion of women with ASD who develop AN is unknown. This study uses published data in novel ways to provide two methods of estimating a range for this variable, and gives a median value of 8.3% for AN in ASD and, with four other methods, a median prevalence of 6% for female ASD. The clinical implications of the diagnosis and management of ASD and its comorbidities are discussed and, as an example, a solution is provided for the rate of ASD in symptomatic generalized joint hypermobility. It is probable that one in six women with a mental health condition is autistic.
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Haywood D, Pantaleo A, Mullan BA, Heslop KR, Baughman FD. Do Dimensional Measures of Mental Health Symptoms Predict Level of Alcohol Involvement in the General Population? Subst Use Misuse 2023; 58:629-636. [PMID: 36790047 DOI: 10.1080/10826084.2023.2177962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Background: There is a limited understanding of what specific mental health symptoms are associated to alcohol involvement. It is important to understand how the severity of different mental health dimensions may differ, and distinguish between, levels of alcohol involvement. Objectives: (a) explore for differences in severity of mental health symptoms between those with lower, and moderate/high alcohol involvement, (b) assess the degree to which mental health dimensions can distinguish between those with lower, and moderate/high alcohol involvement, and (c) examine what mental health dimensions are related to the highest risk of moderate/high alcohol involvement. Results: 400 participants representative of the general population in the USA were recruited online through Prolific and completed the Alcohol, Smoking and Substance Involvement Screening Test and Brief Symptom Inventory. Each of the nine mental health symptom dimensions significantly differed between lower and moderate/high alcohol involvement, with the moderate/high alcohol involvement group reporting greater severity symptoms. The nine symptom dimensions in combination also significantly distinguished lower and moderate/high alcohol involvement, however only somatization offered unique predictive utility. Lastly, global distress was also able to significantly distinguish the alcohol involvement groups, albeit to a lesser accuracy compared to the collection of individual symptom dimensions. Conclusions: These findings suggest that overall mental health distress may be important to understanding alcohol involvement, however individual symptom dimensions can add further explanatory variance. In particular, somatic symptoms may offer unique utility in understanding the relationship between mental health and alcohol involvement.
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Affiliation(s)
- Darren Haywood
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia.,Department of Mental Health, St. Vincent's Hospital Melbourne, Fitzroy, Australia
| | - Ashleigh Pantaleo
- School of Population Health, Curtin University, Perth, Australia.,WA Cancer Prevention Research Unit, Curtin University, Perth, Australia
| | - Barbara A Mullan
- School of Population Health, Curtin University, Perth, Australia.,WA Cancer Prevention Research Unit, Curtin University, Perth, Australia
| | - Karen R Heslop
- Curtin School of Nursing, Curtin University, Perth, Australia
| | - Frank D Baughman
- School of Population Health, Curtin University, Perth, Australia
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Haywood D, Shaw J, Williams T, Watts K, Kane R, O'Connor M. Community workshops increase advance care planning knowledge, appointment of legal proxies and completion of end-of life written plans. DEATH STUDIES 2022:1-8. [PMID: 36576780 DOI: 10.1080/07481187.2022.2160520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Advance Care Planning involves having conversations, completing documents detailing individuals' end-of life treatment and care preferences, and appointing legal proxies who make health, lifestyle, or financial decisions. Although beneficial outcomes have been demonstrated, community rates of Advance Care Planning remain low. We developed a theoretically based workshop to increase knowledge and change behaviors in relation to Advance Care Planning; 347 participants completed the workshop. Advance Care Planning knowledge and action significantly improved three months post workshop. The intervention increased Advance Care Planning knowledge and changed behaviors.
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Affiliation(s)
- Darren Haywood
- Mental Health, St Vincent's Hospital Melbourne, Victoria, Australia
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Western Australia, Australia
- Department of Psychiatry, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Australia
| | - Josephine Shaw
- School of Medical and Health Sciences, Edith Cowan University (ECU), Western Australia, Australia
| | - Tracey Williams
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Western Australia, Australia
| | - Kaaren Watts
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Western Australia, Australia
| | - Robert Kane
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Western Australia, Australia
| | - Moira O'Connor
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Western Australia, Australia
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Mullan B, Liddelow C, Haywood D, Breare H. Behavior Change Training for Health Professionals: Evaluation of a 2-Hour Workshop. JMIR Form Res 2022; 6:e42010. [DOI: 10.2196/42010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/19/2022] Open
Abstract
Background
Rates of noncommunicable diseases continue to rise worldwide. Many of these diseases are a result of engaging in risk behaviors. Without lifestyle and behavioral intervention, noncommunicable diseases can worsen and develop into more debilitating diseases. Behavioral interventions are an effective strategy to reduce the burden of disease. Behavior change techniques can be described as the “active ingredients” in behavior change and address the components that need to be altered in order for the target behavior to change. Health professionals, such as pharmacists and nurses, can engage in opportunistic behavior change with their patients, to encourage positive health behaviors.
Objective
We aimed to develop, implement, and evaluate a behavior change workshop targeted at health professionals in Australia, with the goal of increasing knowledge of behavior change techniques and psychological variables.
Methods
A prospective study design was used to develop and evaluate a 2-hour behavior change workshop targeted at health professionals. The workshop was developed based on the Capability, Opportunity, Motivation, and Behavior Model and had five core objectives: (1) to detail the role of health professionals in delivering optimal care, (2) to demonstrate opportunities to change behavior, (3) to describe principles of behavior change, (4) to explain behavior change techniques, and (5) to determine the most appropriate behavior change techniques to use and when to use them. A total of 10 workshops were conducted. To evaluate the workshops and identify any potential long-term changes in behavior, we collected pre- and postworkshop data on knowledge and psychological constructs from the attendees.
Results
A final sample of 41 health professionals comprising general practitioners, nurses, and pharmacists completed the pre- and postworkshop surveys. Following the workshops, there were significant improvements in knowledge of behavior change techniques (t40=–5.27, P<.001), subjective norms (t40=–3.49, P=.001), descriptive norms (t40=–3.65, P<.001), perceived behavioral control (t40=–3.30, P=.002), and intention (t36=–3.32, P=.002); each had a large effect size. There was no significant difference in postworkshop attitude (t40=0.78, P=.44). The participants also found the workshops to be highly acceptable.
Conclusions
A 2-hour, theoretically informed workshop designed to facilitate the use of behavior change techniques by health professionals was shown to be largely effective. The workshops resulted in increases in knowledge, descriptive and subjective norms, perceived behavioral control, and intention, but not in attitude. The intervention was also shown to be highly acceptable, with the large majority of participants deeming the intervention to be needed, useful, appropriate, and applicable, as well as interesting and worth their time. Future research should examine the lasting impacts of the workshop on health professionals’ practices.
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Effectiveness of Group CBT on Internalizing and Externalizing Symptoms in Children with Mixed Psychiatric Disorders. CHILDREN 2022; 9:children9111602. [DOI: 10.3390/children9111602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022]
Abstract
Background: Our study addressed the gap in research on the effectiveness of cognitive behavioral therapy (CBT) in treating children with mixed psychiatric disorders. We examined the immediate and long-term effects of group CBT (GCBT), delivered in naturalistic clinical settings, on reducing internalizing and externalizing symptoms in children with mixed psychiatric disorders. Further, we compared the effectiveness of cost-effective, manualized GCBT to treatment as usual (TAU) consisting of individually tailored psychiatric outpatient services delivered by mental health care specialists. Methods: Children aged 6–12 years (n = 103) diagnosed with psychiatric disorders, more than 70% with psychiatric comorbidity, were assigned either directly to GCBT (GCBT group; n = 52) or TAU for approximately 3 months, after which they received GCBT (TAU + GCBT group; n = 51). Internalizing and externalizing symptoms were assessed using parent- and teacher-report questionnaires (Child Behavior Checklist and Teacher Report Form) at referral to treatment, pre-treatment, post-treatment, and six-month follow-up. Results: Parent- and teacher-rated internalizing symptoms and parent-rated externalizing symptoms were reduced immediately after GCBT. Long-term GCBT gains were prominent for parent-rated externalizing symptoms. No differences were observed between the effectiveness of GCBT and TAU. Conclusions: Our results suggest that GCBT and TAU services are equally effective in treating internalizing and externalizing symptoms in children with mixed psychiatric disorders, providing support for the broader use of cost-effective manualized GCBT. Manualized GCBT, which requires relatively short training, can also be delivered at primary healthcare levels. Our results are of relevance to cost-effectiveness and global mental health staff shortages.
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Haywood D, Baughman FD, Mullan BA, Heslop KR. Neurocognitive Artificial Neural Network Models Are Superior to Linear Models at Accounting for Dimensional Psychopathology. Brain Sci 2022; 12:1060. [PMID: 36009123 PMCID: PMC9405994 DOI: 10.3390/brainsci12081060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/03/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
In recent years, there has been debate about the optimal conceptualisation of psychopathology. Structural models of psychopathology have been developed to counter issues, including comorbidity and poor diagnostic stability prevalent within the traditional nosological approach. Regardless of the conceptualisation of psychological dysfunction, deficits in neurocognitive abilities have been claimed to be an aetiological feature of psychopathology. Explorations of the association between neurocognition and psychopathology have typically taken a linear approach, overlooking the potential interactive dynamics of neurocognitive abilities. Previously, we proposed a multidimensional hypothesis, where within-person interactions between neurocognitive domains are fundamental to understanding the role of neurocognition within psychopathology. In this study, we used previously collected psychopathology data for 400 participants on psychopathological symptoms, substance use, and performance on eight neurocognitive tasks and compared the predictive accuracy of linear models to artificial neural network models. The artificial neural network models were significantly more accurate than the traditional linear models at predicting actual (a) lower-level and (b) high-level dimensional psychopathology. These results provide support for the multidimensional hypothesis: that the study of non-linear interactions and compensatory neurocognitive profiles are integral to understanding the functional associations between neurocognition and of psychopathology.
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Affiliation(s)
- Darren Haywood
- St. Vincent’s Hospital Melbourne, Mental Health, Fitzroy, VIC 3065, Australia
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
- EnAble Institute, Curtin University, Bentley, WA 6102, Australia
| | - Frank D. Baughman
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
| | - Barbara A. Mullan
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
- EnAble Institute, Curtin University, Bentley, WA 6102, Australia
| | - Karen R. Heslop
- Curtin School of Nursing, Curtin University, Bentley, WA 6102, Australia
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Haywood D, Baughman FD, Mullan BA, Heslop KR. What Accounts for the Factors of Psychopathology? An Investigation of the Neurocognitive Correlates of Internalising, Externalising, and the p-Factor. Brain Sci 2022; 12:421. [PMID: 35447951 PMCID: PMC9030002 DOI: 10.3390/brainsci12040421] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/11/2022] [Accepted: 03/20/2022] [Indexed: 11/16/2022] Open
Abstract
Neurocognitive deficits have been consistently associated with a wide range of psychopathology and are proposed to not only be a consequence of the development of psychopathology but also directly involved in its aetiology. However, there is no clear understanding of what neurocognitive processes are particularly important to mental health. In this paper, we explored the association between neurocognitive abilities and the factors derived from structural models of psychopathology. Four hundred participants from a representative community sample completed measures of symptomology and substance use, as well as 8 neurocognitive tasks. We found a correlated-factors model, with internalising and externalising as the higher-order factors, and a single-factor model with only the p-factor, to be good fits for the data. Tasks that measured the speed of processing were significantly associated with internalising, externalising, and the p-factor, and accounted for significant amounts of unique variance in the factors after accounting for the common variance of the other tasks. Tasks that measured working memory, shifting, and inhibition were not significantly associated with psychopathology factors. Our findings suggest that neurocognitive abilities may not be differentially associated with psychopathology factors, but that speed of processing is a common correlate of the factors. We emphasise the importance of examining neurocognitive abilities and psychopathology on the individual level.
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Affiliation(s)
- Darren Haywood
- Discipline of Psychology, School of Population Health, Curtin University, Perth 6845, Australia or (D.H.); (F.D.B.)
- Mental Health, St. Vincent’s Hospital, Melbourne 3065, Australia
| | - Frank D. Baughman
- Discipline of Psychology, School of Population Health, Curtin University, Perth 6845, Australia or (D.H.); (F.D.B.)
| | - Barbara A. Mullan
- Discipline of Psychology, School of Population Health, Curtin University, Perth 6845, Australia or (D.H.); (F.D.B.)
| | - Karen R. Heslop
- Curtin School of Nursing, Curtin University, Perth 6845, Australia;
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Haywood D, Baughman FD, Mullan BA, Heslop KR. Going "Up" to Move Forward: S-1 Bifactor Models and the Study of Neurocognitive Abilities in Psychopathology. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7413. [PMID: 34299862 PMCID: PMC8307957 DOI: 10.3390/ijerph18147413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/08/2021] [Accepted: 07/08/2021] [Indexed: 11/17/2022]
Abstract
Recently, structural models of psychopathology, that address the diagnostic stability and comorbidity issues of the traditional nosological approach, have dominated much of the psychopathology literature. Structural approaches have given rise to the p-factor, which is claimed to reflect an individual's propensity toward all common psychopathological symptoms. Neurocognitive abilities are argued to be important to the development and maintenance of a wide range of disorders, and have been suggested as an important driver of the p-factor. However, recent evidence argues against p being an interpretable substantive construct, limiting conclusions that can be drawn from associations between p, the specific factors of a psychopathology model, and neurocognitive abilities. Here, we argue for the use of the S-1 bifactor approach, where the general factor is defined by neurocognitive abilities, to explore the association between neurocognitive performance and a wide range of psychopathological symptoms. We use simulation techniques to give examples of how S-1 bifactor models can be used to examine this relationship, and how the results can be interpreted.
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Affiliation(s)
- Darren Haywood
- Discipline of Psychology, School of Population Health, Curtin University, Perth 6845, Australia; (F.D.B.); (B.A.M.)
- Health Psychology & Behavioural Medicine Research Group, School of Population Health, Curtin University, Perth 6845, Australia
- WA Cancer Prevention Research Unit, School of Population Health, Curtin University, Perth 6845, Australia
| | - Frank D. Baughman
- Discipline of Psychology, School of Population Health, Curtin University, Perth 6845, Australia; (F.D.B.); (B.A.M.)
| | - Barbara A. Mullan
- Discipline of Psychology, School of Population Health, Curtin University, Perth 6845, Australia; (F.D.B.); (B.A.M.)
- Health Psychology & Behavioural Medicine Research Group, School of Population Health, Curtin University, Perth 6845, Australia
| | - Karen R. Heslop
- Curtin School of Nursing, Curtin University, Perth 6845, Australia;
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Haywood D, Baughman FD, Mullan BA, Heslop KR. One p-Factor for All? Exploring the Applicability of Structural Models of Psychopathology within Subgroups of a Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7108. [PMID: 34281043 PMCID: PMC8297009 DOI: 10.3390/ijerph18137108] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/17/2022]
Abstract
Structural models of psychopathology have emerged as an alternative to traditional categorical approaches. The bifactor model, which incorporates a general p-factor, has become the preferred structure. The p-factor is claimed to represent a substantive construct or property of the system; however, recent evidence suggests that it may be without substantive meaning. If a universal substantive p, and associated specific factors, is to be developed they not only must be applicable and consistent between populations but also must be applicable and consistent within subgroups of a population. This consistency needs to include not only factor loadings but also factor correlates. We used a simulated data approach to explore the applicability and consistency of four popular models of psychopathology to a range of heterogeneous subgroups and examined the consistency of their neurocognitive correlates. We found that only eight out of sixty-three subgroups fitted any of the models with all significant loadings, no negative loadings, no non-positive-definite identification issues, and no negative variance. All eight of these subgroups fit the correlated factors model, none fit the original bifactor model, four subgroups fit the revised bifactor model, and one subgroup fit the single-factor model. Correlates of the factors also varied substantially between the subgroups fitted to the same model. We discuss the implications of the findings, including the implications for the development of universal substantive factors of psychopathology.
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Affiliation(s)
- Darren Haywood
- Discipline of Psychology, School of Population Health, Curtin University, GPO BOX U1987, Perth 6845, Australia; (F.D.B.); (B.A.M.)
- Health Psychology & Behavioural Medicine Research Group, School of Population Health, Curtin University, GPO BOX U1987, Perth 6845, Australia
- WA Cancer Prevention Research Unit, School of Population Health, Curtin University, GPO BOX U1987, Perth 6845, Australia
| | - Frank D. Baughman
- Discipline of Psychology, School of Population Health, Curtin University, GPO BOX U1987, Perth 6845, Australia; (F.D.B.); (B.A.M.)
| | - Barbara A. Mullan
- Discipline of Psychology, School of Population Health, Curtin University, GPO BOX U1987, Perth 6845, Australia; (F.D.B.); (B.A.M.)
- Health Psychology & Behavioural Medicine Research Group, School of Population Health, Curtin University, GPO BOX U1987, Perth 6845, Australia
| | - Karen R. Heslop
- Curtin School of Nursing, Curtin University, GPO BOX U1987, Perth 6845, Australia;
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