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Gurguis CI, Kimm TS, Pigott TA. Perspective: the evolution of hormones and person perception-a quantitative genetic framework. Front Psychol 2024; 15:1395974. [PMID: 38952835 PMCID: PMC11215136 DOI: 10.3389/fpsyg.2024.1395974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/03/2024] [Indexed: 07/03/2024] Open
Abstract
Evolutionary biology provides a unifying theory for testing hypotheses about the relationship between hormones and person perception. Person perception usually receives attention from the perspective of sexual selection. However, because person perception is one trait in a suite regulated by hormones, univariate approaches are insufficient. In this Perspectives article, quantitative genetics is presented as an important but underutilized framework for testing evolutionary hypotheses within this literature. We note tacit assumptions within the current literature on psychiatric genetics, which imperil the interpretation of findings thus far. As regulators of a diverse manifold of traits, hormones mediate tradeoffs among an array of functions. Hormonal pleiotropy also provides the basis of correlational selection, a process whereby selection on one trait in a hormone-mediated suite generates selection on the others. This architecture provides the basis for conflicts between sexual and natural selection within hormone-mediated suites. Due to its role in person perception, psychiatric disorders, and reproductive physiology, the sex hormone estrogen is highlighted as an exemplar here. The implications of this framework for the evolution of person perception are discussed. Empirical quantification of selection on traits within hormone-mediated suites remains an important gap in this literature with great potential to illuminate the fundamental nature of psychiatric disorders.
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Affiliation(s)
- Christopher I. Gurguis
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School at UTHealth, Houston, TX, United States
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2
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Golovina K, Elovainio M, Hakulinen C. Association between depression and the likelihood of having children: a nationwide register study in Finland. Am J Obstet Gynecol 2023; 228:211.e1-211.e11. [PMID: 36283480 DOI: 10.1016/j.ajog.2022.10.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 10/03/2022] [Accepted: 10/08/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Depression may be associated with a lower likelihood of having children, but the findings are inconsistent. Previous population-based studies on this topic are limited. OBJECTIVE We examined associations between depression and the likelihood of having children, the number of children, and the parental age at first birth. We also evaluated whether these associations differ for people with low, middle, and high educational levels. STUDY DESIGN We conducted a nationwide register cohort study including all individuals born in Finland from 1960 to 1980 (n=1,408,951). Depression diagnoses were identified from the Care Register for Health Care (containing records of inpatient hospital episodes for the period 1969 to 2017 and of specialist outpatient visits for the period 1996 to 2017). The main outcomes-having biological children, the number of biological children, and the parental age at first birth-were identified from the Population Register of Statistics Finland and were defined either in the last year of the follow-up in 2017 or the last year alive or living in Finland. The association between depression and the likelihood of having children was examined using a logistic regression analysis; the association between depression and the number of children was evaluated using Poisson regression analyses, and the association between depression and the age at first birth was evaluated using a linear regression analysis. All analyses were conducted separately for men and women. RESULTS For both men and women, secondary care-treated depression was associated with a lower likelihood of having children (odds ratio, 0.66; 95% confidence interval, 0.64-0.67 for men; odds ratio, 0.84; 95% confidence interval, 0.82-0.85 for women) and with having fewer children (incidence rate ratio, 0.86; 95% confidence interval, 0.86-0.87 for men; incidence rate ratio, 0.96; 95% confidence interval, 0.96-0.96 for women). Depression was associated with a slightly lower parental age at first birth (33.1 vs 34.0; P<.001 for men; 31.3 vs 32.1; P<.001 for women). Dose-response associations between the severity of depression and a decreased likelihood of having children, as well as having fewer children, were observed. Earlier onset of depression was related to a lower likelihood of having children and to having fewer children. Among men and women in middle- and high-level educational groups, depression was associated with a lower likelihood of having children and with having fewer children. Among men with a low level of education, no associations were observed. Among women with a low level of education, depression was associated with a higher likelihood of having children and with having more children. CONCLUSION Both men and women with secondary care-treated depression have a lower likelihood of having children and have fewer children. Our findings suggest that depression may be one of the factors that contribute to the likelihood of having children, which should be addressed by policy makers.
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Affiliation(s)
- Kateryna Golovina
- Helsinki Collegium for Advanced Studies, University of Helsinki, Helsinki, Finland.
| | - Marko Elovainio
- Research Program Unit, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Faculty of Medicine, Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland; Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Christian Hakulinen
- Faculty of Medicine, Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland; Finnish Institute for Health and Welfare, Helsinki, Finland
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Chiu CD, Chou LS, Hsieh YC, Lin CH, Li DJ. Erroneous Thought in Inpatients with Major Depressive Disorder: The Role of Psychological Trauma During Childhood and Adulthood. Neuropsychiatr Dis Treat 2023; 19:337-348. [PMID: 36778532 PMCID: PMC9910196 DOI: 10.2147/ndt.s396451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The pathogenic role of trauma in psychotic-like experiences has yet to be clarified. The aim of this study was to investigate the role of childhood and adulthood trauma on erroneous thoughts among patients with major depressive disorder. MATERIALS AND METHODS Inpatients with major depressive disorder (MDD) and healthy controls (HCs) were enrolled, and paper-and-pencil questionnaires were applied. Clinical rating and self-reported scales were used to measure levels of depression, dissociation, psychological trauma, parental maltreatment, and erroneous thoughts. Pearson's correlation analysis was conducted to explore potentially significant associations between erroneous thoughts and other independent variables, and standardized regression coefficients of hierarchical regression analysis were used to predict the significant relationships between erroneous thoughts and adulthood or childhood trauma. RESULTS A total of 99 participants were included into the analysis, of whom 59 were patients with MDD and 40 were HCs. After treatment, the patients with MDD showed significantly higher levels of depression, childhood maltreatment, interpersonal trauma and erroneous thoughts than the HCs. After estimating and verifying correlations with hierarchical regression among the patients with MDD, a link between adulthood betrayal trauma and higher level of conviction along with the number of erroneous thoughts was found. However, no significant association was identified between childhood trauma and erroneous thought. The concurrent level of depression significantly predicted a higher level of being preoccupied, along with the number of erroneous thoughts. CONCLUSION The current study fills a gap in the literature by showing a link between adulthood trauma and erroneous thoughts in non-psychotic patients. Further studies with well-controlled comparisons and prospective cohort with longer follow-up are warranted to extend the applicability and generalizability of the current study.
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Affiliation(s)
- Chui-De Chiu
- Department of Psychology, Clinical and Health Psychology Centre, and Centre for Cognition and Brain Studies, the Chinese University of Hong Kong, Sha Tin City, Hong Kong
| | - Li-Shiu Chou
- Department of Adult Psychiatry, Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, Kaohsiung City, Taiwan
| | - Yung-Chi Hsieh
- Department of Adult Psychiatry, Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, Kaohsiung City, Taiwan
| | - Ching-Hua Lin
- Department of Adult Psychiatry, Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, Kaohsiung City, Taiwan
| | - Dian-Jeng Li
- Department of Addiction Science, Kaohsiung Municipal Kai-Syuan Psychiatric Hospital, Kaohsiung City, Taiwan.,Department of Nursing, Meiho University, Pingtung, Taiwan
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Troisi A. Biological Psychiatry is Dead, Long Live Biological Psychiatry! CLINICAL NEUROPSYCHIATRY 2022; 19:351-354. [PMID: 36627945 PMCID: PMC9807117 DOI: 10.36131/cnfioritieditore20220601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The failure of biological psychiatry to deliver on its promises of enlightening the origin of psychiatric disorders and optimizing their treatment is due to invalid theoretical postulates that derive from an outdated conceptualization of human biology. The crisis of biological psychiatry depends on its identification with functional biology. A major contribution of evolutionary biology (the other current of biological thought) is to integrate the study of environmental variables (developmental, interpersonal, and ecological) with those mechanisms that are the field of study of functional biology (genetics, anatomy, and physiology). A new theoretical framework based on the integration of functional and evolutionary explanations can revitalize the crippled field of biological psychiatry.
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Affiliation(s)
- Alfonso Troisi
- International Medical School University of Rome Tor Vergata,Corresponding author Alfonso Troisi E-mail:
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Yland JJ, McKinnon CJ, Hatch EE, Eisenberg ML, Nillni YI, Rothman KJ, Wise LA. A Prospective Study of Male Depression, Psychotropic Medication Use, and Fecundability. Am J Mens Health 2022; 16:15579883221075520. [PMID: 35144505 PMCID: PMC8841933 DOI: 10.1177/15579883221075520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We examined the associations of male depression and psychotropic medication use with fecundability in a North American preconception cohort study (2013–2020). Men aged ≥21 years completed a baseline questionnaire with questions on history of diagnosed depression, the Major Depression Inventory (MDI), and psychotropic medication use. Pregnancy status was updated via bimonthly female follow-up questionnaires until pregnancy or 12 menstrual cycles, whichever occurred first. Analyses were restricted to 2,398 couples attempting conception for ≤6 menstrual cycles at entry. We fit proportional probabilities models to estimate fecundability ratios (FRs) and 95% confidence intervals (CIs), adjusting for age (male and female), education, (male and female), race/ethnicity, physical activity, alcohol intake, body mass index, smoking, and having previously impregnated a partner. Nearly 12% of participants reported a depression diagnosis; 90.6% had low depressive symptoms (MDI <20), 3.5% had mild symptoms (MDI: 20–24), 2.7% had moderate symptoms (MDI: 25–29), and 3.3% had severe symptoms (MDI: ≥30). A total of 8.8% of participants reported current use of psychotropic medications. History of depression was associated with slightly reduced fecundability, although this result was also reasonably compatible with chance (FR = 0.89; 95% CI: [0.76, 1.04]). FRs for mild, moderate, and severe compared with low depressive symptoms were 0.89 (95% CI: [0.66, 1.21]), 0.90 (95% CI: [0.62, 1.31]), and 0.88 (95% CI: [0.65, 1.20]), respectively. This indicates little evidence of a dose–response relationship for depressive symptoms with fecundability, although estimates were imprecise. Current psychotropic medication use mediated 44% of the association between depressive symptoms and fecundability.
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Affiliation(s)
- Jennifer J Yland
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Craig J McKinnon
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Elizabeth E Hatch
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Michael L Eisenberg
- Department of Urology and Obstetrics & Gynecology, Stanford University School of Medicine, Stanford, CA, USA
| | - Yael I Nillni
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA.,National Center for PTSD, Women's Health Sciences Division at VA Boston Healthcare System, Boston, MA, USA
| | - Kenneth J Rothman
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,RTI International, Research Triangle Park, NC, USA
| | - Lauren A Wise
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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6
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Wilson S, Elkins IJ, Malone SM, Iacono WG, McGue M. Associations Between Common Forms of Psychopathology and Fecundity: Evidence From a Prospective, Longitudinal Twin Study. Clin Psychol Sci 2021; 9:197-209. [PMID: 34012724 PMCID: PMC8127725 DOI: 10.1177/2167702620957321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We examined associations between common psychiatric disorders and fecundity in a population-based cohort of 1252 twins prospectively assessed from adolescence into adulthood. Major depressive, anxiety, and alcohol use disorders were associated with lower likelihood of having children and having fewer children. Survival analyses yielded similar results accounting for timing/recurrence. Although both early- and adult-onset psychiatric disorders were associated with decreased fecundity, early-onset major depressive, anxiety (among boys), and alcohol use disorders (among girls) were associated with greater likelihood of having a child during adolescence. Among twin pairs discordant for psychiatric disorders, twins affected by anxiety and alcohol use, but not major depressive, disorders were less likely to have children than unaffected co-twins. However, unaffected twins with an affected co-twin were no more likely to have children than twins from unaffected twin pairs, inconsistent with the balancing selection hypothesis that increased fecundity in unaffected relatives accounts for persistence of psychiatric disorders.
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Bipolar disorder: An evolutionary psychoneuroimmunological approach. Neurosci Biobehav Rev 2021; 122:28-37. [PMID: 33421542 DOI: 10.1016/j.neubiorev.2020.12.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/19/2020] [Accepted: 12/27/2020] [Indexed: 12/19/2022]
Abstract
Bipolar disorder is a mental health disorder characterized by extreme shifts in mood, high suicide rate, sleep problems, and dysfunction of psychological traits like self-esteem (feeling inferior when depressed and superior when manic). Bipolar disorder is rare among populations that have not adopted contemporary Western lifestyles, which supports the hypothesis that bipolar disorder results from a mismatch between Homo sapiens's evolutionary and current environments. Recent studies have connected bipolar disorder with low-grade inflammation, the malfunctioning of the internal clock, and the resulting sleep disturbances. Stress is often a triggering factor for mania and sleep problems, but stress also causes low-grade inflammation. Since inflammation desynchronizes the internal clock, chronic stress and inflammation are the primary biological mechanisms behind bipolar disorder. Chronic stress and inflammation are driven by contemporary Western lifestyles, including stressful social environments, unhealthy dietary patterns, limited physical activity, and obesity. The treatment of bipolar disorder should focus on reducing stress, stress sensitivity, and inflammation by lifestyle changes rather than just temporarily alleviating symptoms with psychopharmacological interventions.
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Porthan E, Lindberg M, Ekholm E, Scheinin NM, Karlsson L, Karlsson H, Härkönen J. Parental divorce in childhood does not independently predict maternal depressive symptoms during pregnancy. BMC Pregnancy Childbirth 2020; 20:520. [PMID: 32894091 PMCID: PMC7487523 DOI: 10.1186/s12884-020-03227-w] [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: 03/12/2020] [Accepted: 09/01/2020] [Indexed: 11/25/2022] Open
Abstract
Background This study sought to investigate if parental divorce in childhood increases the risk for depressive symptoms in pregnancy. Methods Women were recruited during their ultrasound screening in gestational week (gwk) 12. The final study sample consisted of 2,899 pregnant women. Questionnaires (including the Edinburgh Postnatal Depression Scale) were completed at three measurement points (gwk 14, 24 and 34). Prenatal depressive symptoms were defined as Edinburgh Postnatal Depression Scale score ≥ 13. Parental divorce and other stressful life events in childhood were assessed at gwk 14. Parental divorce was defined as separation of parents who were married or cohabiting. Questionnaire data was supplemented with data from Statistics Finland and the Finnish Medical Birth Register. Results Parental divorce in childhood increased the risk for depressive symptoms during pregnancy (OR 1.47; 95% CI 1.02–2.13), but the connection was no longer significant after adjusting for socioeconomic status, family conflicts and witnessing domestic violence in the childhood family (OR 0.80; 95% CI 0.54–1.18). Conclusions Parental divorce alone does not predict depressive symptoms during pregnancy.
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Affiliation(s)
- Elviira Porthan
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.
| | - Matti Lindberg
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.,Faculty of Social Sciences, Department of Social Research, University of Turku, Turku, Finland
| | - Eeva Ekholm
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.,Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Noora M Scheinin
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.,Department of Psychiatry, Turku University Hospital and University of Turku, Turku, Finland
| | - Linnea Karlsson
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.,Department of Child Psychiatry, Turku University Hospital and University of Turku, Turku, Finland.,Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
| | - Hasse Karlsson
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.,Department of Psychiatry, Turku University Hospital and University of Turku, Turku, Finland.,Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
| | - Juho Härkönen
- FinnBrain Birth Cohort Study, Turku Brain and Mind Center and Centre for Population Health Research, Department of Clinical Medicine, University of Turku, Lemminkäisenkatu 3, 20520, Turku, Finland.,Department of Political and Social Sciences, European University Institute, Firenze, Italy.,Department of Sociology, Stockholm University, Stockholm, Finland
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Lord KA, Jacobson NC, Suvak MK, Newman MG. Social criticism moderates the relationship between anxiety and depression 10 years later. J Affect Disord 2020; 274:15-22. [PMID: 32469798 PMCID: PMC7365767 DOI: 10.1016/j.jad.2020.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 04/02/2020] [Accepted: 05/10/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Research has consistently documented anxiety and depression as bidirectional risk factors for one another. However, little research investigates the sequential comorbidity of anxiety and depression over lengthy durations, and the influence of contextual variables on this relationship have not been fully empirically investigated. METHOD The current study examined perceived social criticism as a moderator of the relationship between a history of anxiety and a past 12-month depressive episode at least 10 years later (and vice versa) utilizing the National Comorbidity Survey Baseline (N = 8,098) and Re-interview data (N = 5,001). History of anxiety and depressive diagnoses were assigned at Wave 1, past year diagnosis at Wave 2, and perceived social criticism was assessed at Wave 1. RESULTS Structural equation modeling indicated that when controlling for a Wave 1 latent depression factor, a positive relationship between Wave 1 latent anxiety and a Wave 2 latent depression emerged for those endorsing higher perceived social criticism from friends and relatives, respectively. Unexpectedly, when controlling for Wave 1 latent anxiety, a negative relationship between Wave 1 latent depression and Wave 2 latent anxiety emerged for those endorsing higher perceived social criticism from friends, but no relationship when moderated by perceived social criticism from relatives. LIMITATIONS Perceived social criticism was self-reported, which may introduce self-perception bias. CONCLUSIONS Results identified perceived social criticism as an important moderator in the sequential comorbidity of anxiety and depression over a long period of time.
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Affiliation(s)
| | - Nicholas C Jacobson
- Massachusetts General Hospital, Harvard Medical School, The Pennsylvania State University, United States
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10
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Social stress and psychiatric disorders: Evolutionary reflections on debated questions. Neurosci Biobehav Rev 2020; 116:461-469. [DOI: 10.1016/j.neubiorev.2020.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 07/10/2020] [Accepted: 07/15/2020] [Indexed: 01/11/2023]
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Complex Relations Between Psychopathy and Fitness May Indicate Adaptive Trade-Offs. EVOLUTIONARY PSYCHOLOGICAL SCIENCE 2018. [DOI: 10.1007/s40806-018-00183-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Jacobson NC, Roche MJ. Current evolutionary adaptiveness of anxiety: Extreme phenotypes of anxiety predict increased fertility across multiple generations. J Psychiatr Res 2018; 106:82-90. [PMID: 30296705 PMCID: PMC6219631 DOI: 10.1016/j.jpsychires.2018.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 09/12/2018] [Accepted: 10/01/2018] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Although recent research has begun to examine the impact of elevated anxiety on evolutionary fitness, no prior research has examined anxiety across a continuum. Such research is important as the effect of traits across a continuum on fertility hold important implications for the levels and distribution of the traits in later generations. METHOD In a three-generational sample (N = 2657) the linear and quadratic relationship between anxiety and the number of children, grandchildren, and great-grandchildren 15 years later was examined. RESULTS The findings suggested that anxiety had a positive quadratic relationship with the number of children, grandchildren, and great-grandchildren 15 years later. These relationships were not significantly moderated by sex. Moreover, most of the variance between anxiety and the number of great-grandchildren was explained by anxiety's influence on the number of children and grandchildren, as opposed to anxiety having an independent direct impact on the number of great-grandchildren. CONCLUSION These findings suggest that extreme values from the mean anxiety are associated with increased evolutionary fitness within the modern environment.
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Affiliation(s)
- Nicholas C Jacobson
- Massachusetts General Hospital, Harvard Medical School, The Pennsylvania State University, United States.
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Ji L, Chow SM, Schermerhorn AC, Jacobson NC, Cummings EM. Handling Missing Data in the Modeling of Intensive Longitudinal Data. STRUCTURAL EQUATION MODELING : A MULTIDISCIPLINARY JOURNAL 2018; 25:715-736. [PMID: 31303745 PMCID: PMC6625802 DOI: 10.1080/10705511.2017.1417046] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 12/11/2017] [Indexed: 05/20/2023]
Abstract
Myriad approaches for handling missing data exist in the literature. However, few studies have investigated the tenability and utility of these approaches when used with intensive longitudinal data. In this study, we compare and illustrate two multiple imputation (MI) approaches for coping with missingness in fitting multivariate time-series models under different missing data mechanisms. They include a full MI approach, in which all dependent variables and covariates are imputed simultaneously, and a partial MI approach, in which missing covariates are imputed with MI, whereas missingness in the dependent variables is handled via full information maximum likelihood estimation. We found that under correctly specified models, partial MI produces the best overall estimation results. We discuss the strengths and limitations of the two MI approaches, and demonstrate their use with an empirical data set in which children's influences on parental conflicts are modeled as covariates over the course of 15 days (Schermerhorn, Chow, & Cummings, 2010).
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Dinsdale NL, Crespi BJ. Revisiting the wandering womb: Oxytocin in endometriosis and bipolar disorder. Horm Behav 2017; 96:69-83. [PMID: 28919554 DOI: 10.1016/j.yhbeh.2017.09.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 09/07/2017] [Accepted: 09/09/2017] [Indexed: 12/23/2022]
Abstract
Hippocrates attributed women's high emotionality - hysteria - to a 'wandering womb'. Although hysteria diagnoses were abandoned along with the notion that displaced wombs cause emotional disturbance, recent research suggests that elevated levels of oxytocin occur in both bipolar disorder and endometriosis, a gynecological condition involving migration of endometrial tissue beyond the uterus. We propose and evaluate the hypothesis that elevated oxytocinergic system activity jointly contributes to bipolar disorder and endometriosis. First, we provide relevant background on endometriosis and bipolar disorder, and then we examine evidence for comorbidity between these conditions. We next: (1) review oxytocin's associations with personality traits, especially extraversion and openness, and how they overlap with bipolar spectrum traits; (2) describe evidence for higher oxytocinergic activity in both endometriosis and bipolar disorder; (3) examine altered hypothalamic-pituitary-gonadal axis functioning in both conditions; (4) describe data showing that medications that treat one condition can improve symptoms of the other; (5) discuss fitness-related impacts of endometriosis and bipolar disorder; and (6) review a pair of conditions, polycystic ovary syndrome and autism, that show evidence of involving reduced oxytocinergic activity, in direct contrast to endometriosis and bipolar disorder. Considered together, the bipolar spectrum and endometriosis appear to involve dysregulated high extremes of normally adaptive pleiotropy in the female oxytocin system, whereby elevated levels of oxytocinergic activity coordinate outgoing sociality with heightened fertility, apparently characterizing, overall, a faster life history. These findings should prompt a re-examination of how mind-body interactions, and the pleiotropic endocrine systems that underlie them, contribute to health and disease.
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Affiliation(s)
- Natalie L Dinsdale
- Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby V5A 1S6, BC, Canada; Department of Psychology, 9 Campus Drive, 154 Arts, University of Saskatchewan, Saskatoon S7N 5A5, SK, Canada.
| | - Bernard J Crespi
- Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby V5A 1S6, BC, Canada.
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Interpersonal and Affective Psychopathy Traits Can Enhance Human Fitness. EVOLUTIONARY PSYCHOLOGICAL SCIENCE 2017. [DOI: 10.1007/s40806-017-0097-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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