Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
33638252
TITLE
Can network analysis of self-reported psychopathology shed light on the core phenomenology of bipolar disorders in adolescents and young adults?
ABSTRACT
OBJECTIVES
Network analysis is increasingly applied to psychopathology research. We used it to examine the core phenomenology of emerging bipolar disorder (BD I and II) and 'at risk' presentations (major depression with a family history of BD).
METHODOLOGY
Network analysis is increasingly applied to psychopathology research. We used it to examine the core phenomenology of emerging bipolar disorder (BD I and II) and 'at risk' presentations (major depression with a family history of BD). The study sample comprised a community cohort of 1867 twin and nontwin siblings (57% female; mean age ~26) who had completed self-report ratings of (i) depression-like, hypomanic-like and psychotic-like experiences; (ii) family history of BD; and (iii) were assessed for mood and psychotic syndromes using the Composite International Diagnostic Interview (CIDI). Symptom networks were compared for recent onset BD versus other cohort members and then for individuals at risk of BD (depression with/without a family history of BD).
RESULTS
Network analysis is increasingly applied to psychopathology research. We used it to examine the core phenomenology of emerging bipolar disorder (BD I and II) and 'at risk' presentations (major depression with a family history of BD). The study sample comprised a community cohort of 1867 twin and nontwin siblings (57% female; mean age ~26) who had completed self-report ratings of (i) depression-like, hypomanic-like and psychotic-like experiences; (ii) family history of BD; and (iii) were assessed for mood and psychotic syndromes using the Composite International Diagnostic Interview (CIDI). Symptom networks were compared for recent onset BD versus other cohort members and then for individuals at risk of BD (depression with/without a family history of BD). The four key symptoms that differentiated recent onset BD from other cohort members were: anergia, psychomotor speed, hypersomnia and (less) loss of confidence. The four key symptoms that differentiated individuals at high risk of BD from unipolar depression were anergia, psychomotor speed, impaired concentration and hopelessness. However, the latter network was less stable and more error prone.
CONCLUSIONS
Network analysis is increasingly applied to psychopathology research. We used it to examine the core phenomenology of emerging bipolar disorder (BD I and II) and 'at risk' presentations (major depression with a family history of BD). The study sample comprised a community cohort of 1867 twin and nontwin siblings (57% female; mean age ~26) who had completed self-report ratings of (i) depression-like, hypomanic-like and psychotic-like experiences; (ii) family history of BD; and (iii) were assessed for mood and psychotic syndromes using the Composite International Diagnostic Interview (CIDI). Symptom networks were compared for recent onset BD versus other cohort members and then for individuals at risk of BD (depression with/without a family history of BD). The four key symptoms that differentiated recent onset BD from other cohort members were: anergia, psychomotor speed, hypersomnia and (less) loss of confidence. The four key symptoms that differentiated individuals at high risk of BD from unipolar depression were anergia, psychomotor speed, impaired concentration and hopelessness. However, the latter network was less stable and more error prone. We are encouraged by the overlaps between our findings and those from two recent publications reporting network analyses of BD psychopathology, especially as the studies recruited from different populations and employed different network models. However, the advantages of applying network analysis to youth mental health cohorts (which include many individuals with multimorbidity) must be weighed against the disadvantages including basic issues such as judgements regarding the selection of items for inclusion in network models.
© 2021 The Authors. Bipolar Disorders published by John Wiley & Sons Ltd.
DATE PUBLISHED
2021 09
HISTORY
PUBSTATUS PUBSTATUSDATE
revised 2021/01/13
received 2020/08/20
accepted 2021/02/21
pmc-release 2022/09/01
pubmed 2021/02/28 06:00
medline 2021/11/03 06:00
entrez 2021/02/27 05:44
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
Scott J Scott Jan J Institute of Neuroscience, Newcastle University, Newcastle, UK.
Crouse JJ Crouse Jacob J JJ Brain and Mind Centre, The University of Sydney, Sydney, Australia.
Ho N Ho Nicholas N Brain and Mind Centre, The University of Sydney, Sydney, Australia.
Carpenter J Carpenter Joanne J Brain and Mind Centre, The University of Sydney, Sydney, Australia.
Martin N Martin Nicholas N QIMR Berghofer Institute of Medical Research, Brisbane, Australia.
Medland S Medland Sarah S Institute of Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Parker R Parker Richard R QIMR Berghofer Institute of Medical Research, Brisbane, Australia.
Byrne E Byrne Enda E Institute of Molecular Bioscience, The University of Queensland, Brisbane, Australia.
Couvy-Duchesne B Couvy-Duchesne Baptiste B Paris Brain Institute, INRIA ARAMIS lab, Paris, France.
Mitchell B Mitchell Brittany B School of Biomedical Science and Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology (QUT, Brisbane, Australia.
Merikangas K Merikangas Kathleen K Genetic Epidemiology Research Branch, Intramural Research Program, National Institute of Mental Health, Bethesda, Maryland, USA.
Gillespie NA Gillespie Nathan A NA Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, USA.
Hickie I Hickie Ian I Brain and Mind Centre, The University of Sydney, Sydney, Australia.
INVESTIGATORS
JOURNAL
VOLUME: 23
ISSUE: 6
TITLE: Bipolar disorders
ISOABBREVIATION: Bipolar Disord
YEAR: 2021
MONTH: 09
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Internet
ISSN: 1399-5618
ISSNTYPE: Electronic
MEDLINE JOURNAL
MEDLINETA: Bipolar Disord
COUNTRY: Denmark
ISSNLINKING: 1398-5647
NLMUNIQUEID: 100883596
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
COMMENTS AND CORRECTIONS
GRANTS
GRANTID AGENCY COUNTRY
R00 DA023549 NIDA NIH HHS United States
GENERAL NOTE
KEYWORDS
KEYWORD
activation
bipolar disorder
network analysis
risk factors
sleep-wake cycle
MESH HEADINGS
DESCRIPTORNAME QUALIFIERNAME
Adolescent
Bipolar Disorder diagnosis
Depressive Disorder, Major diagnosis
Female diagnosis
Humans diagnosis
Male diagnosis
Mental Disorders diagnosis
Psychopathology diagnosis
Self Report diagnosis
Young Adult diagnosis
SUPPLEMENTARY MESH
GENE SYMBOLS
CHEMICALS
OTHER ID's