251
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Ma Z, Ma Y, Zhang N. Development of brain-wide connectivity architecture in awake rats. Neuroimage 2018; 176:380-389. [PMID: 29738909 DOI: 10.1016/j.neuroimage.2018.05.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/02/2018] [Indexed: 12/13/2022] Open
Abstract
Childhood and adolescence are both critical developmental periods, evidenced by complex neurophysiological changes the brain undergoes and high occurrence rates of neuropsychiatric disorders during these periods. Despite substantial progress in elucidating the developmental trajectories of individual neural circuits, our knowledge of developmental changes of whole-brain connectivity architecture in animals is sparse. To fill this gap, here we longitudinally acquired rsfMRI data in awake rats during five developmental stages from juvenile to adulthood. We found that the maturation timelines of brain circuits were heterogeneous and system specific. Functional connectivity (FC) tended to decrease in subcortical circuits, but increase in cortical circuits during development. In addition, the developing brain exhibited hemispheric functional specialization, evidenced by reduced inter-hemispheric FC between homotopic regions, and lower similarity of region-to-region FC patterns between the two hemispheres. Finally, we showed that whole-brain network development was characterized by reduced clustering (i.e. local communication) but increased integration (distant communication). Taken together, the present study has systematically characterized the development of brain-wide connectivity architecture from juvenile to adulthood in awake rats. It also serves as a critical reference point for understanding circuit- and network-level changes in animal models of brain development-related disorders. Furthermore, FC data during brain development in awake rodents contain high translational value and can shed light onto comparative neuroanatomy.
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Affiliation(s)
- Zilu Ma
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Yuncong Ma
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Nanyin Zhang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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252
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Byne W, Karasic DH, Coleman E, Eyler AE, Kidd JD, Meyer-Bahlburg HF, Pleak RR, Pula J. Gender Dysphoria in Adults: An Overview and Primer for Psychiatrists. Transgend Health 2018; 3:57-70. [PMID: 29756044 PMCID: PMC5944396 DOI: 10.1089/trgh.2017.0053] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Regardless of their area of specialization, adult psychiatrists are likely to encounter gender-variant patients; however, medical school curricula and psychiatric residency training programs devote little attention to their care. This article aims to assist adult psychiatrists who are not gender specialists in the delivery of respectful, clinically competent, and culturally attuned care to gender-variant patients, including those who identify as transgender or transsexual or meet criteria for the diagnosis of Gender Dysphoria (GD) as defined by The Diagnostic and Statistical Manual of Mental Disorders (5th edition). The article will also be helpful for other mental health professionals. The following areas are addressed: evolution of diagnostic nosology, epidemiology, gender development, and mental health assessment, differential diagnosis, treatment, and referral for gender-affirming somatic treatments of adults with GD.
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Affiliation(s)
- William Byne
- Mental Illness Research Education and Clinical Center, James J Peters VA Medical Center, Bronx, New York
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai and Center for Transgender Medicine and Surgery at Mount Sinai, New York, New York
| | - Dan H. Karasic
- Department of Psychiatry, University of California, San Francisco, San Francisco, California
| | - Eli Coleman
- Program in Human Sexuality, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, Minnesota
| | - A. Evan Eyler
- Departments of Psychiatry and Family Medicine, University of Vermont College of Medicine, Burlington, Vermont
| | - Jeremy D. Kidd
- Department of Psychiatry, Division on Substance Use Disorders, College of Physicians and Surgeons of Columbia University, New York, New York
| | - Heino F.L. Meyer-Bahlburg
- Division of Gender, Sexuality, and Health, New York State Psychiatric Institute/Department of Psychiatry, College of Physicians and Surgeons of Columbia University, New York, New York
| | - Richard R. Pleak
- Department of Psychiatry, Division of Child and Adolescent Psychiatry, Hofstra North Shore-LIJ School of Medicine, Albert Einstein College of Medicine, Zucker Hillside Hospital, Ambulatory Care Pavilion, Glen Oaks, New York
| | - Jack Pula
- Department of Psychiatry, Division of Gender, Sexuality and Health, College of Physicians and Surgeons of Columbia University, New York, New York
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253
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Gorday JY, Meyer A. Linking puberty and error-monitoring: Relationships between self-reported pubertal stages, pubertal hormones, and the error-related negativity in a large sample of children and adolescents. Dev Psychobiol 2018; 60:483-490. [PMID: 29630723 DOI: 10.1002/dev.21625] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 02/09/2018] [Indexed: 12/18/2022]
Abstract
The error-related negativity (ERN) is a negative deflection in the event-related potential occurring when individuals make mistakes. The ERN has been proposed as a biomarker for anxiety and a substantial amount of research suggests the ERN increases across development. Further, the ERN may relate to individual differences and the development of cognitive control. Despite the large quantity of research on this topic, there have been no studies focusing on the relationship between pubertal hormones and the ERN. Previous work suggests developmental increases may begin sooner for girls than for boys, suggesting that puberty may impact the ERN. The current study examined the relationship between pubertal hormones and the ERN amplitude in a sample of 99 females between 8 and 14 years old. Each participant and the parent who accompanied them completed the Pubertal Developmental Scale (PDS) to assess the degree to which pubertal indicators are present. Participants also completed a Go/NoGo Task while EEG was recorded and participants provided saliva samples for hormone assays. Results indicated that ERN was significantly related to both the dehydroepiandrosterone (DHEA) hormone and PDS scores. A simultaneous multivariate regression suggested that DHEA levels significantly predict the ERN, even when controlling for age, behavioral variables, and PDS. These findings suggest that ERN amplitude is related to DHEA levels, further linking puberty to developmental increases in the ERN. Future research should examine this relationship in the context of developmental increases in anxiety symptoms.
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Affiliation(s)
- Julia Y Gorday
- Department of Psychology, Florida State University, Tallahassee, Florida
| | - Alexandria Meyer
- Department of Psychology, Florida State University, Tallahassee, Florida
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254
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Poulsen R, Cedergreen N, Hayes T, Hansen M. Nitrate: An Environmental Endocrine Disruptor? A Review of Evidence and Research Needs. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:3869-3887. [PMID: 29494771 DOI: 10.1021/acs.est.7b06419] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nitrate is heavily used as an agricultural fertilizer and is today a ubiquitous environmental pollutant. Environmental endocrine effects caused by nitrate have received increasing attention over the last 15 years. Nitrate is hypothesized to interfere with thyroid and steroid hormone homeostasis and developmental and reproductive end points. The current review focuses on aquatic ecotoxicology with emphasis on field and laboratory controlled in vitro and in vivo studies. Furthermore, nitrate is just one of several forms of nitrogen that is present in the environment and many of these are quickly interconvertible. Therefore, the focus is additionally confined to the oxidized nitrogen species (nitrate, nitrite and nitric oxide). We reviewed 26 environmental toxicology studies and our main findings are (1) nitrate has endocrine disrupting properties and hypotheses for mechanisms exist, which warrants for further investigations; (2) there are issues determining actual nitrate-speciation and abundance is not quantified in a number of studies, making links to speciation-specific effects difficult; and (3) more advanced analytical chemistry methodologies are needed both for exposure assessment and in the determination of endocrine biomarkers.
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Affiliation(s)
- Rikke Poulsen
- Department of Plant and Environmental Sciences , University of Copenhagen , Thorvaldsensvej 40 , 1871 Frederiksberg , Denmark
| | - Nina Cedergreen
- Department of Plant and Environmental Sciences , University of Copenhagen , Thorvaldsensvej 40 , 1871 Frederiksberg , Denmark
| | - Tyrone Hayes
- Laboratory for Integrative Studies in Amphibian Biology, Molecular Toxicology, Group in Endocrinology, Energy and Resources Group, Museum of Vertebrate Zoology, and Department of Integrative Biology , University of California , Berkeley , California 94720 , United States
| | - Martin Hansen
- Department of Plant and Environmental Sciences , University of Copenhagen , Thorvaldsensvej 40 , 1871 Frederiksberg , Denmark
- Laboratory for Integrative Studies in Amphibian Biology, Molecular Toxicology, Group in Endocrinology, Energy and Resources Group, Museum of Vertebrate Zoology, and Department of Integrative Biology , University of California , Berkeley , California 94720 , United States
- Department of Environmental and Civil Engineering , University of California , Berkeley , California 94720 , United States
- Department of Environmental Science , Aarhus University , 4000 Roskilde , Denmark
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255
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Harris KM, McDade TW. The Biosocial Approach to Human Development, Behavior, and Health Across the Life Course. THE RUSSELL SAGE FOUNDATION JOURNAL OF THE SOCIAL SCIENCES : RSF 2018; 4:2-26. [PMID: 30923747 PMCID: PMC6434524 DOI: 10.7758/rsf.2018.4.4.01] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Social and biological phenomena are widely recognized as determinants of human development, health, and socioeconomic attainments across the life course, but our understanding of the underlying pathways and processes remains limited. To address this gap, we define the "biosocial approach" as one that conceptualizes the biological and social as mutually constituting, and that draws on models and methods from the biomedical and social/behavioral sciences. By bringing biology into the social sciences, we can illuminate mechanisms through which socioeconomic, psychosocial, and other contextual factors shape human development and health. Human biology is a social biology, and biological measures can therefore identify aspects of social contexts that are harmful, as well as beneficial, with respect to well-being. By bringing social science concepts and study designs to biology and biomedicine, we encourage an epistemological shift that foregrounds social/contextual factors as important determinants of human biology and health. The biosocial approach also underscores the importance of the life course, as assessments of both biological and social features throughout human development over time, and across generations, are needed to achieve a full understanding of social and physical well-being. We conclude with a brief review of the papers in the volume, which showcase the value of a biosocial approach to understanding the pathways linking social stratification, biology, and health across the life course.
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Affiliation(s)
| | - Thomas W McDade
- Northwestern University, 1810 Hinman Avenue, Evanston, IL 60208, /467-4304,
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256
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Arakawa H. Ethological approach to social isolation effects in behavioral studies of laboratory rodents. Behav Brain Res 2018; 341:98-108. [DOI: 10.1016/j.bbr.2017.12.022] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/15/2017] [Accepted: 12/17/2017] [Indexed: 12/31/2022]
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257
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Sugiura L, Hata M, Matsuba-Kurita H, Uga M, Tsuzuki D, Dan I, Hagiwara H, Homae F. Explicit Performance in Girls and Implicit Processing in Boys: A Simultaneous fNIRS-ERP Study on Second Language Syntactic Learning in Young Adolescents. Front Hum Neurosci 2018; 12:62. [PMID: 29568265 PMCID: PMC5853835 DOI: 10.3389/fnhum.2018.00062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 02/05/2018] [Indexed: 11/20/2022] Open
Abstract
Learning a second language (L2) proceeds with individual approaches to proficiency in the language. Individual differences including sex, as well as working memory (WM) function appear to have strong effects on behavioral performance and cortical responses in L2 processing. Thus, by considering sex and WM capacity, we examined neural responses during L2 sentence processing as a function of L2 proficiency in young adolescents. In behavioral tests, girls significantly outperformed boys in L2 tests assessing proficiency and grammatical knowledge, and in a reading span test (RST) assessing WM capacity. Girls, but not boys, showed significant correlations between L2 tests and RST scores. Using functional near-infrared spectroscopy (fNIRS) and event-related potential (ERP) simultaneously, we measured cortical responses while participants listened to syntactically correct and incorrect sentences. ERP data revealed a grammaticality effect only in boys in the early time window (100–300 ms), implicated in phrase structure processing. In fNIRS data, while boys had significantly increased activation in the left prefrontal region implicated in syntactic processing, girls had increased activation in the posterior language-related region involved in phonology, semantics, and sentence processing with proficiency. Presumably, boys implicitly focused on rule-based syntactic processing, whereas girls made full use of linguistic knowledge and WM function. The present results provide important fundamental data for learning and teaching in L2 education.
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Affiliation(s)
- Lisa Sugiura
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan.,Research Center for Language, Brain and Genetics, Tokyo Metropolitan University, Tokyo, Japan
| | - Masahiro Hata
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan
| | - Hiroko Matsuba-Kurita
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan
| | - Minako Uga
- Applied Cognitive Neuroscience Lab, Faculty of Science and Engineering, Chuo University, Tokyo, Japan.,Department of Welfare and Psychology, Health Science University, Yamanashi, Japan
| | - Daisuke Tsuzuki
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan.,Applied Cognitive Neuroscience Lab, Faculty of Science and Engineering, Chuo University, Tokyo, Japan
| | - Ippeita Dan
- Applied Cognitive Neuroscience Lab, Faculty of Science and Engineering, Chuo University, Tokyo, Japan
| | - Hiroko Hagiwara
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan.,Research Center for Language, Brain and Genetics, Tokyo Metropolitan University, Tokyo, Japan
| | - Fumitaka Homae
- Department of Language Sciences, Graduate School of Humanities, Tokyo Metropolitan University, Tokyo, Japan.,Research Center for Language, Brain and Genetics, Tokyo Metropolitan University, Tokyo, Japan
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258
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Beltz AM. Connecting Theory and Methods in Adolescent Brain Research. JOURNAL OF RESEARCH ON ADOLESCENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR RESEARCH ON ADOLESCENCE 2018; 28:10-25. [PMID: 29460359 DOI: 10.1111/jora.12366] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Networks are often implicated in theories of adolescent brain development, but they are not regularly examined in empirical studies. The aim of this article is to address this disconnect between theory and quantitative methodology, using the dual systems model of adolescent decision making as a prototype. After reviewing the key task-related connectivity methods that have been applied in the adolescent neuroimaging literature (seed-based correlations, psychophysiological interactions, and dynamic causal modeling), a novel connectivity method is introduced (extended unified structural equation modeling). The potential of this method for understanding adolescent brain development is showcased with a simulation study: It creates person-specific networks that have direct and time-lagged connections that can be modulated by behavior.
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259
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van Hemmen J, Saris IMJ, Cohen-Kettenis PT, Veltman DJ, Pouwels PJW, Bakker J. Sex Differences in White Matter Microstructure in the Human Brain Predominantly Reflect Differences in Sex Hormone Exposure. Cereb Cortex 2018; 27:2994-3001. [PMID: 27226438 DOI: 10.1093/cercor/bhw156] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Sex differences have been described regarding several aspects of human brain morphology; however, the exact biological mechanisms underlying these differences remain unclear in humans. Women with the complete androgen insensitivity syndrome (CAIS), who lack androgen action in the presence of a 46,XY karyotype, offer the unique opportunity to study isolated effects of sex hormones and sex chromosomes on human neural sexual differentiation. In the present study, we used diffusion tensor imaging to investigate white matter (WM) microstructure in 46,XY women with CAIS (n = 20), 46,XY comparison men (n = 30), and 46,XX comparison women (n = 30). Widespread sex differences in fractional anisotropy (FA), with higher FA in comparison men than in comparison women, were observed. Women with CAIS showed female-typical FA throughout extended WM regions, predominantly due to female-typical radial diffusivity. These findings indicate a predominant role of sex hormones in the sexual differentiation of WM microstructure, although sex chromosome genes and/or masculinizing androgen effects not mediated by the androgen receptor might also play a role.
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Affiliation(s)
- J van Hemmen
- Netherlands Institute for Neuroscience, Amsterdam, The Netherlands.,Department of Medical Psychology.,Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - I M J Saris
- Department of Psychiatry, GGZ inGeest, Amsterdam, The Netherlands
| | | | - D J Veltman
- Department of Psychiatry.,Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - P J W Pouwels
- Department of Physics and Medical Technology and.,Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - J Bakker
- Netherlands Institute for Neuroscience, Amsterdam, The Netherlands.,Department of Medical Psychology.,GIGA Neurosciences, University of Liège, Liège, Belgium
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260
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Popoola DO, Cameron NM. Maternal care-related differences in males and females rats' sensitivity to ethanol and the associations between the GABAergic system and steroids in males. Dev Psychobiol 2018; 60:380-394. [PMID: 29442358 DOI: 10.1002/dev.21607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 11/20/2017] [Indexed: 02/06/2023]
Abstract
This study investigated the effect of maternal care on adolescent ethanol consumption, sensitivity to ethanol-induced hypnosis, as well as gonadal hormones and γ-aminobutyric acid type-A (GABAA ) systems. Long Evans rat dams were categorized by maternal licking/grooming (LG) frequency into High- and Low-LG mothers. Both female and male offspring from Low-LG rats demonstrated a greater sensitivity to ethanol-induced hypnosis in the loss-of-righting-reflex test at ethanol doses of 3.0 and 3.5 g/kg during late-adolescence (postnatal Day 50) but not at mid-adolescence (postnatal Day 42). However, we found no effect of maternal care on consumption of a 5% ethanol solution in a two-bottle choice test. We further investigated the association between the observed variations in sensitivity to ethanol-induced hypnosis and baseline hormonal levels in males. In male offspring from Low-LG mothers compared to High-LG mothers, baseline plasma corticosterone and progesterone levels were higher. GABAA α1 and δ subunit expressions were also higher in the cerebral cortex of Low-LG males but lower in the cerebellar synaptosomal fraction. Early environmental influences on adolescent sensitivity to ethanol-induced hypnosis, consumption, and preference may be mediated by gonadal hormones and possibly through GABAergic functions.
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Affiliation(s)
- Daniel O Popoola
- Department of Psychology, Center for Developmental and Behavioral Neuroscience, Binghamton University, Binghamton, New York.,Developmental Exposure Alcohol Research Center, Binghamton University, Binghamton, New York.,Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions, Research Institute on Addictions, University of Buffalo, Buffalo, New York
| | - Nicole M Cameron
- Department of Psychology, Center for Developmental and Behavioral Neuroscience, Binghamton University, Binghamton, New York.,Developmental Exposure Alcohol Research Center, Binghamton University, Binghamton, New York
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261
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Beking T, Geuze RH, van Faassen M, Kema IP, Kreukels BPC, Groothuis TGG. Prenatal and pubertal testosterone affect brain lateralization. Psychoneuroendocrinology 2018; 88:78-91. [PMID: 29195161 DOI: 10.1016/j.psyneuen.2017.10.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/31/2017] [Accepted: 10/31/2017] [Indexed: 11/15/2022]
Abstract
After decades of research, the influence of prenatal testosterone on brain lateralization is still elusive, whereas the influence of pubertal testosterone on functional brain lateralization has not been investigated, although there is increasing evidence that testosterone affects the brain in puberty. We performed a longitudinal study, investigating the relationship between prenatal testosterone concentrations in amniotic fluid, pubertal testosterone concentrations in saliva, and brain lateralization (measured with functional Transcranial Doppler ultrasonography (fTCD)) of the Mental Rotation, Chimeric Faces and Word Generation tasks. Thirty boys and 30 girls participated in this study at the age of 15 years. For boys, we found a significant interaction effect between prenatal and pubertal testosterone on lateralization of Mental Rotation and Chimeric Faces. In the boys with low prenatal testosterone levels, pubertal testosterone was positively related to the strength of lateralization in the right hemisphere, while in the boys with high prenatal testosterone levels, pubertal testosterone was negatively related to the strength of lateralization. For Word Generation, pubertal testosterone was negatively related to the strength of lateralization in the left hemisphere in boys. For girls, we did not find any significant effects, possibly because their pubertal testosterone levels were in many cases below quantification limit. To conclude, prenatal and pubertal testosterone affect lateralization in a task-specific way. Our findings cannot be explained by simple models of prenatal testosterone affecting brain lateralization in a similar way for all tasks. We discuss alternative models involving age dependent effects of testosterone, with a role for androgen receptor distribution and efficiency.
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Affiliation(s)
- T Beking
- University of Groningen, Faculty of Behavioural and Social Sciences, Department Clinical & Developmental Neuropsychology, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands.
| | - R H Geuze
- University of Groningen, Faculty of Behavioural and Social Sciences, Department Clinical & Developmental Neuropsychology, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands.
| | - M van Faassen
- University Medical Center Groningen, University of Groningen, Laboratory Medicine, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
| | - I P Kema
- University Medical Center Groningen, University of Groningen, Laboratory Medicine, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
| | - B P C Kreukels
- VU University Medical Center Amsterdam, Department of Medical Psychology, Center of Expertise on Gender Dysphoria, PO Box 7057, 1007 MB, Amsterdam, The Netherlands.
| | - T G G Groothuis
- University of Groningen, Groningen Institute for Evolutionary Life Sciences, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
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262
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Owens SJ, Murphy CE, Purves-Tyson TD, Weickert TW, Shannon Weickert C. Considering the role of adolescent sex steroids in schizophrenia. J Neuroendocrinol 2018; 30. [PMID: 28941299 DOI: 10.1111/jne.12538] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 09/06/2017] [Accepted: 09/20/2017] [Indexed: 12/29/2022]
Abstract
Schizophrenia is a disabling illness that is typically first diagnosed during late adolescence to early adulthood. It has an unremitting course and is often treatment-resistant. Many clinical aspects of the illness suggest that sex steroid-nervous system interactions may contribute to the onset, course of symptoms and the cognitive impairment displayed by men and women with schizophrenia. Here, we discuss the actions of oestrogen and testosterone on the brain during adolescent development and in schizophrenia from the perspective of experimental studies in animals, human post-mortem studies, magnetic resonance imaging studies in living humans and clinical trials of sex steroid-based treatments. We present evidence of potential beneficial, as well as detrimental, effects of both testosterone and oestrogen. We provide a rationale for the necessity to further elucidate sex steroid mechanisms of action at different ages, sexes and brain regions to more fully understand the role of testosterone and oestrogen in the pathophysiology of schizophrenia. The weight of the evidence suggests that sex steroid hormones influence mammalian brain function, including both cognition and emotion, and that pharmaceutical agents aimed at sex steroid receptors appear to provide a novel treatment avenue to reduce symptoms and improve cognition in men and women with schizophrenia.
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Affiliation(s)
- S J Owens
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Faculty of Medicine, School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - C E Murphy
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Faculty of Medicine, School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - T D Purves-Tyson
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Faculty of Medicine, School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - T W Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Faculty of Medicine, School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - C Shannon Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Faculty of Medicine, School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
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263
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Abstract
Examining sex differences in the brain has been historically contentious but is nonetheless important for advancing mental health for both girls and boys. Unfortunately, females in biomedical research remain underrepresented in most mental health conditions including autism spectrum disorders (ASD), even though equal inclusion of females would improve treatment for girls and yield benefits to boys. This review examines sex differences in the relationship between neuroanatomy and neurogenetics of ASD. Recent findings reveal that girls diagnosed with ASD exhibit more intellectual and behavioral problems compared to their male counterparts, suggesting that girls may be less likely diagnosed in the absence of such problems or that they require a higher mutational load to meet the diagnostic criteria. Thus far, the female biased effect of chromosome 4, 5p15.33, 8p, 9p24.1, 11p12-13, 15q, and Xp22.3 and the male biased effect of 1p31.3, 5q12.3, 7q, 9q33.3, 11q13.4, 13q33.3, 16p11.2, 17q11-21, Xp22.33/Yp11.31, DRD1, NLGN3, MAOA, and SHANK1 deletion have been discovered in ASD. The SNPs of genes such as RYR2, UPP2, and the androgen receptor gene have been shown to have sex-biasing factors in both girls and boys diagnosed with ASD. These sex-related genetic factors may drive sex differences in the neuroanatomy of these girls and boys, including abnormal enlargement in temporal gray and white matter volumes, and atypical reduction in cerebellar gray matter volumes and corpus callosum fibers projecting to the anterior frontal cortex in ASD girls relative to boys. Such factors may also be responsible for the attenuation of brain sexual differentiation in adult men and women with ASD; however, much remains to be uncovered or replicated. Future research should leverage further the association between neuroanatomy and genetics in girls for an integrated and interdisciplinary understanding of ASD.
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264
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Osher D, Cantor P, Berg J, Steyer L, Rose T. Drivers of human development: How relationships and context shape learning and development1. APPLIED DEVELOPMENTAL SCIENCE 2018. [DOI: 10.1080/10888691.2017.1398650] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | - Pamela Cantor
- Turnaround for Children
- Harvard Graduate School of Education
| | | | | | - Todd Rose
- Harvard Graduate School of Education
- The Center for Individual Opportunity
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265
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Radke S, Kalt T, Wagels L, Derntl B. Implicit and Explicit Motivational Tendencies to Faces Varying in Trustworthiness and Dominance in Men. Front Behav Neurosci 2018; 12:8. [PMID: 29410619 PMCID: PMC5787135 DOI: 10.3389/fnbeh.2018.00008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/11/2018] [Indexed: 11/13/2022] Open
Abstract
Motivational tendencies to happy and angry faces are well-established, e.g., in the form of aggression. Approach-avoidance reactions are not only elicited by emotional expressions, but also linked to the evaluation of stable, social characteristics of faces. Grounded in the two fundamental dimensions of face-based evaluations proposed by Oosterhof and Todorov (2008), the current study tested whether emotionally neutral faces varying in trustworthiness and dominance potentiate approach-avoidance in 50 healthy male participants. Given that evaluations of social traits are influenced by testosterone, we further tested for associations of approach-avoidance tendencies with endogenous and prenatal indicators of testosterone. Computer-generated faces signaling high and low trustworthiness and dominance were used to elicit motivational reactions in three approach-avoidance tasks, i.e., one implicit and one explicit joystick-based paradigm, and an additional rating task. When participants rated their behavioral tendencies, highly trustworthy faces evoked approach, and highly dominant faces evoked avoidance. This pattern, however, did not translate to faster initiation times of corresponding approach-avoidance movements. Instead, the joystick tasks revealed general effects, such as faster reactions to faces signaling high trustworthiness or high dominance. These findings partially support the framework of Oosterhof and Todorov (2008) in guiding approach-avoidance decisions, but not behavioral tendencies. Contrary to our expectations, neither endogenous nor prenatal indicators of testosterone were associated with motivational tendencies. Future studies should investigate the contexts in which testosterone influences social motivation.
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Affiliation(s)
- Sina Radke
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany.,JARA - BRAIN Institute Brain Structure-Function Relationships: Decoding the Human Brain at Systemic Levels, RWTH Aachen University, Aachen, Germany
| | - Theresa Kalt
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Lisa Wagels
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany.,JARA - BRAIN Institute Brain Structure-Function Relationships: Decoding the Human Brain at Systemic Levels, RWTH Aachen University, Aachen, Germany.,Institute of Neuroscience and Medicine (INM-10), Research Center Jülich, Jülich, Germany
| | - Birgit Derntl
- Department of Psychiatry and Psychotherapy, Medical School, University of Tübingen, Tübingen, Germany.,Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, Tübingen, Germany.,LEAD Graduate School, University of Tübingen, Tübingen, Germany
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266
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Chen FR, Raine A. Effects of harsh parenting and positive parenting practices on youth aggressive behavior: The moderating role of early pubertal timing. Aggress Behav 2018; 44:18-28. [PMID: 28699265 DOI: 10.1002/ab.21720] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 05/01/2017] [Accepted: 05/26/2017] [Indexed: 11/10/2022]
Abstract
Prior research indicates that early pubertal timing is associated with aggressive behavior, particularly in the context of adversity as postulated in the contextual amplification hypothesis. However, few studies have examined harsh parenting as the context for the effect of early pubertal timing. Even fewer studies have tested the interactive effect of early pubertal timing and positive parenting on aggressive behavior. In this study, we tested the proposition that early pubertal timing, contrary to the general conception of it as a vulnerability, indexed susceptibility, and thus early maturing individuals were affected more by their environment in a "for better and for worse" manner. The sample consisted of 411 community-recruited youth aged 11-12 years (51% boys, 80% African Americans). Participants reported Tanner Stages of pubertal development, aggressive behavior and harsh parenting practice of their parents. Puberty scores were standardized with groups of the same age, sex, and ethnicity, and those that scored the top one-third were defined as early maturing individuals. Parents reported youth's aggressive behavior and their parenting practices towards the youth, including harsh parenting and positive parenting. Early pubertal timing significantly moderated the relationship between harsh/positive parenting and aggressive behavior. Specifically, harsh parenting was positively associated with aggressive behavior to a larger degree among early maturing individuals than among on-time/late-maturing individuals. Positive parenting was inversely associated with aggressive behavior but only among early maturing individuals. This study is the first to document support for early pubertal timing as susceptibility to the environmental influences in relation to aggressive behavior. Theoretical and intervention implications are discussed.
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Affiliation(s)
- Frances R. Chen
- Department of Criminal Justice and Criminology; Georgia State University; Atlanta Georgia
| | - Adrian Raine
- Departments of Criminology, Psychiatry, and Psychology; University of Pennsylvania; Philadelphia Pennsylvania
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267
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Bickel WK, Mellis AM, Snider SE, Athamneh LN, Stein JS, Pope DA. 21st century neurobehavioral theories of decision making in addiction: Review and evaluation. Pharmacol Biochem Behav 2018; 164:4-21. [PMID: 28942119 PMCID: PMC5747999 DOI: 10.1016/j.pbb.2017.09.009] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 08/24/2017] [Accepted: 09/12/2017] [Indexed: 01/21/2023]
Abstract
This review critically examines neurobehavioral theoretical developments in decision making in addiction in the 21st century. We specifically compare each theory reviewed to seven benchmarks of theoretical robustness, based on their ability to address: why some commodities are addictive; developmental trends in addiction; addiction-related anhedonia; self-defeating patterns of behavior in addiction; why addiction co-occurs with other unhealthy behaviors; and, finally, means for the repair of addiction. We have included only self-contained theories or hypotheses which have been developed or extended in the 21st century to address decision making in addiction. We thus review seven distinct theories of decision making in addiction: learning theories, incentive-sensitization theory, dopamine imbalance and systems models, opponent process theory, strength models of self-control failure, the competing neurobehavioral decision systems theory, and the triadic systems theory of addiction. Finally, we have directly compared the performance of each of these theories based on the aforementioned benchmarks, and highlighted key points at which several theories have coalesced.
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Affiliation(s)
- Warren K Bickel
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States; Graduate Program in Translational Biology, Medicine, and Health, Roanoke, VA, United States; Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States; Department of Neuroscience, Virginia Polytechnic Institute and State University, United States; Faculty of Health Sciences, Virginia Polytechnic Institute and State University, United States; Department of Psychiatry and Behavioral Medicine, Virginia Tech Carilion School of Medicine, United States.
| | - Alexandra M Mellis
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States; Graduate Program in Translational Biology, Medicine, and Health, Roanoke, VA, United States
| | - Sarah E Snider
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
| | - Liqa N Athamneh
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States; Graduate Program in Translational Biology, Medicine, and Health, Roanoke, VA, United States
| | - Jeffrey S Stein
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
| | - Derek A Pope
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, United States
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268
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Yeager DS, Dahl RE, Dweck CS. Why Interventions to Influence Adolescent Behavior Often Fail but Could Succeed. PERSPECTIVES ON PSYCHOLOGICAL SCIENCE 2018; 13:101-122. [PMID: 29232535 PMCID: PMC5758430 DOI: 10.1177/1745691617722620] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We provide a developmental perspective on two related issues: (a) why traditional preventative school-based interventions work reasonably well for children but less so for middle adolescents and (b) why some alternative approaches to interventions show promise for middle adolescents. We propose the hypothesis that traditional interventions fail when they do not align with adolescents' enhanced desire to feel respected and be accorded status; however, interventions that do align with this desire can motivate internalized, positive behavior change. We review examples of promising interventions that (a) directly harness the desire for status and respect, (b) provide adolescents with more respectful treatment from adults, or (c) lessen the negative influence of threats to status and respect. These examples are in the domains of unhealthy snacking, middle school discipline, and high school aggression. Discussion centers on implications for basic developmental science and for improvements to youth policy and practice.
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Affiliation(s)
- David S Yeager
- 1 Department of Psychology, University of Texas at Austin
| | - Ronald E Dahl
- 2 School of Public Health, University of California, Berkeley
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269
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Developmental relations between amygdala volume and anxiety traits: Effects of informant, sex, and age. Dev Psychopathol 2017; 30:1503-1515. [DOI: 10.1017/s0954579417001626] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractAlthough substantial human and animal evidence suggests a role for the amygdala in anxiety, literature linking amygdala volume to anxiety symptomatology is inconclusive, with studies finding positive, negative, and null results. Clarifying this brain–behavior relation in middle to late childhood is especially important, as this is a time both of amygdala structural maturation and the emergence of many anxiety disorders. The goal of the current study was to clarify inconsistent findings in previous literature by identifying factors moderating the relation between amygdala volume and anxiety traits in a large sample of typically developing children aged 6–13 years (N = 72). In particular, we investigated the moderating effects of informant (parent vs. child), age, and sex. We found that children's reports (i.e., self-reports) were related to amygdala volume; children who reported higher anxiety levels had smaller amygdalae. This negative relation between amygdala volume and anxiety weakened with age. There was also an independent effect of sex, such that relations were stronger in males than in females. These results indicate the importance of considering sample and informant characteristics when charting the neurobiological mechanisms underlying developmental anxiety.
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270
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Cross SJ, Linker KE, Leslie FM. Sex-dependent effects of nicotine on the developing brain. J Neurosci Res 2017; 95:422-436. [PMID: 27870426 DOI: 10.1002/jnr.23878] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/08/2016] [Accepted: 07/14/2016] [Indexed: 02/06/2023]
Abstract
The use of tobacco products represents a major public health concern, especially among women. Epidemiological data have consistently demonstrated that women have less success quitting tobacco use and a higher risk for developing tobacco-related diseases. The deleterious effects of nicotine are not restricted to adulthood, as nicotinic acetylcholine receptors regulate critical aspects of neural development. However, the exact mechanisms underlying the particular sensitivity of women to develop tobacco dependence have not been well elucidated. In this mini-review, we show that gonadal hormone-mediated sexual differentiation of the brain may be an important determinant of sex differences in the effects of nicotine. We highlight direct interactions between sex steroid hormones and ligand-gated ion channels critical for brain maturation, and discuss the extended and profound sexual differentiation of the brain. We emphasize that nicotine exposure during the perinatal and adolescent periods interferes with normal sexual differentiation and can induce long-lasting, sex-dependent alterations in neuronal structure, cognitive and executive function, learning and memory, and reward processing. We stress important age and sex differences in nicotine's effects and emphasize the importance of including these factors in preclinical research that models tobacco dependence. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Sarah J Cross
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, California
| | - Kay E Linker
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, California
| | - Frances M Leslie
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, California.,Department of Pharmacology, School of Medicine, University of California, Irvine, California
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271
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Becker JB, McClellan ML, Reed BG. Sex differences, gender and addiction. J Neurosci Res 2017; 95:136-147. [PMID: 27870394 DOI: 10.1002/jnr.23963] [Citation(s) in RCA: 318] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 09/17/2016] [Accepted: 09/19/2016] [Indexed: 12/13/2022]
Abstract
This review discusses alcohol and other forms of drug addiction as both a sociocultural and biological phenomenon. Sex differences and gender are not solely determined by biology, nor are they entirely sociocultural. The interactions among biological, environmental, sociocultural, and developmental influences result in phenotypes that may be more masculine or more feminine. These gender-related sex differences in the brain can influence the responses to drugs of abuse, progressive changes in the brain after exposure to drugs of abuse and whether addiction results from drug-taking experiences. In addition, the basic laboratory evidence for sex differences is discussed within the context of four types of sex/gender differences. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jill B Becker
- Department of Psychology and the Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, 48109
| | - Michele L McClellan
- Department of History and the Residential College, University of Michigan, Ann Arbor, MI, 48109
| | - Beth Glover Reed
- School of Social Work and the Department of Women's Studies, University of Michigan, Ann Arbor, MI, 48109
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272
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Op de Macks ZA, Bunge SA, Bell ON, Kriegsfeld LJ, Kayser AS, Dahl RE. The effect of social rank feedback on risk taking and associated reward processes in adolescent girls. Soc Cogn Affect Neurosci 2017; 12:240-250. [PMID: 27614768 PMCID: PMC5390714 DOI: 10.1093/scan/nsw125] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 08/24/2016] [Indexed: 12/14/2022] Open
Abstract
The onset of adolescence is associated with an increased tendency to engage in risky behaviors and a developmental shift toward peers that contributes to increased prioritization for learning about and achieving social status. There is relatively little understanding about the specific links between these adolescent-typical phenomena, particularly regarding their neural underpinnings. Based on existing models that suggest the role of puberty in promoting adolescent status-seeking and risk-taking tendencies, we investigated the relation of pubertal hormones with behavioral and neural responses to status-relevant social information in the context of risk taking. We used a probabilistic decision task in which 11- to 13-year-old girls chose to take a risk, or not, while receiving either social rank or monetary performance feedback. While feedback type did not differentially influence risk-taking behavior, whole-brain imaging results showed that activation in the anterior insula was increased for risk taking in the social rank feedback condition compared to the monetary feedback condition. This heightened activation was more pronounced in girls with higher estradiol levels. These findings suggest that brain processes involved in adolescent risky decisions may be influenced by the desire for social-status enhancement and provide preliminary evidence for the role of pubertal hormones in enhancing this adolescent-typical social sensitivity.
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Affiliation(s)
- Zdena A Op de Macks
- Department of Psychology, University of California, Berkeley, 2310 Tolman Hall, Berkeley, CA 94720-1650, USA
| | - Silvia A Bunge
- Department of Psychology, University of California, Berkeley, 2310 Tolman Hall, Berkeley, CA 94720-1650, USA.,Helen Wills Neuroscience Institute, University of California, Berkeley, 175 Li Ka Shing Center, Berkeley, CA 94720, USA
| | - Orly N Bell
- Department of Psychology, University of California, Berkeley, 2310 Tolman Hall, Berkeley, CA 94720-1650, USA
| | - Lance J Kriegsfeld
- Department of Psychology, University of California, Berkeley, 2310 Tolman Hall, Berkeley, CA 94720-1650, USA
| | - Andrew S Kayser
- Department of Neurology, University of California, San Francisco, 675 Nelson Rising Lane, San Francisco, CA 94143, USA.,Department of Neurology, VA Northern California Health Care System, 150 Muir Road, Martinez, CA 94553, USA
| | - Ronald E Dahl
- School of Public Health, University of California, Berkeley, 50 University Hall, Berkeley, CA 94720-7360, USA.,Institute of Human Development, University of California, Berkeley, 1121 Tolman Hall, Berkeley, CA 94720-1690, USA
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273
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Ordaz SJ, LeMoult J, Colich NL, Prasad G, Pollak M, Popolizio M, Price A, Greicius M, Gotlib IH. Ruminative brooding is associated with salience network coherence in early pubertal youth. Soc Cogn Affect Neurosci 2017; 12:298-310. [PMID: 27633394 PMCID: PMC5390708 DOI: 10.1093/scan/nsw133] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Accepted: 09/06/2016] [Indexed: 12/12/2022] Open
Abstract
Rumination, and particularly ruminative brooding, perpetuates dysphoric mood states and contributes to the emergence of depression. Studies of adults and older adolescents have characterized the association between rumination and intrinsic functional connectivity within default mode (DMN), salience (SN) and executive control (ECN) networks; we know little, however, about the brain network basis of rumination during early puberty, a sensitive period for network reorganization. 112 early puberty boys and girls completed resting-state scans, the Ruminative Response Scale, and the Youth Self-Report questionnaire. Using independent components analysis and dual regression, we quantified coherence for each individual in networks of interest (SN, ECN, DMN) and in non-relevant networks (motor, visual) in which we predicted no correlations with behavioral measures. Boys and girls did not differ in levels of rumination or internalizing symptoms, or in coherence for any network. The relation between SN network coherence and rumination; however, and specifically ruminative brooding, was moderated by sex: greater SN coherence was associated with higher levels of brooding in girls but not in boys. Further, in girls, brooding mediated the relation between SN coherence and internalizing symptoms. These results point to coherence within the SN as a potential neurodevelopmental marker of risk for depression in early pubertal girls.
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Affiliation(s)
- Sarah J Ordaz
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Joelle LeMoult
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Natalie L Colich
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Gautam Prasad
- Imaging Genetics Center & Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - Madeline Pollak
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Morgan Popolizio
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Alexandra Price
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Michael Greicius
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Ian H Gotlib
- Department of Psychology, Stanford University, Stanford, CA, USA
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274
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Helpman L, Zhu X, Suarez-Jimenez B, Lazarov A, Monk C, Neria Y. Sex Differences in Trauma-Related Psychopathology: a Critical Review of Neuroimaging Literature (2014-2017). Curr Psychiatry Rep 2017; 19:104. [PMID: 29116470 PMCID: PMC5737777 DOI: 10.1007/s11920-017-0854-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE OF REVIEW Sex differences in the epidemiology and clinical presentation of trauma-related psychopathology have long been documented. Multiple underlying mechanisms have been examined, both psychosocial and biological. Among the most promising biological mechanisms are neural substrates of trauma-related psychopathology that have been uncovered in recent years. RECENT FINDINGS Neuroimaging studies of sex-related heterogeneity published over the past 3 years (2014-2017) demonstrate an interaction between sex and type, timing, and load of trauma exposure. These studies suggest that, for males, early trauma exposure may involve a loss of gray matter in the limbic system, including the prefrontal cortex (PFC), amygdala, and hippocampus, and an over-activity and increased connectivity of salience hubs, and particularly dorsal anterior cingulate cortex (dACC). For females, however, early trauma exposure may involve overactive and possibly an enlarged amygdala, as well as decreased connectivity of salience hubs such as the dACC. Underlying mechanisms may include interaction with several endocrine systems and result in differential neural response to naturally occurring and added endocrine ligands, as well as sex-specific genetic and epigenetic risk and resilience factors. This complex interaction between multiple biological systems may be associated with sex-specific behavioral patterns, in turn associated with trauma-related psychopathology. While substantial number of published studies present preliminary evidence for neural mechanisms of sex-specific posttraumatic responses, there is a paucity of research directly designed to examine sex as a biological factor in trauma-related psychopathology. Specific foci for future studies aiming to bridge current gaps in the literature are discussed.
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Affiliation(s)
- Liat Helpman
- Department of Psychiatry and the New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Dr. Unit no. 69, New York, NY, 10025, USA.
| | - Xi Zhu
- Department of Psychiatry and the New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Dr. Unit no. 69, New York, NY 10025, USA
| | - Benjamin Suarez-Jimenez
- Department of Psychiatry and the New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Dr. Unit no. 69, New York, NY 10025, USA
| | - Amit Lazarov
- Department of Psychiatry and the New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Dr. Unit no. 69, New York, NY 10025, USA
| | - Catherine Monk
- Department of Psychiatry and the New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Dr. Unit no. 69, New York, NY 10025, USA
| | - Yuval Neria
- Department of Psychiatry and the New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Dr. Unit no. 69, New York, NY 10025, USA
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275
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Harden KP, Mann FD, Grotzinger AD, Patterson MW, Steinberg L, Tackett JL, Tucker-Drob EM. Developmental differences in reward sensitivity and sensation seeking in adolescence: Testing sex-specific associations with gonadal hormones and pubertal development. J Pers Soc Psychol 2017; 115:161-178. [PMID: 29094961 DOI: 10.1037/pspp0000172] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Sensation seeking has been found to increase, on average, from childhood to adolescence. Developmental scientists have hypothesized that this change could be driven by the rise of gonadal hormones at puberty, which affect reward-related processing in the brain. In a large, age-heterogeneous, population-based sample of adolescents and young adults (N = 810; ages 13-20 years), we tested for sex-specific associations between age, self-reported pubertal development, gonadal hormones (estradiol and testosterone) as measured in saliva, reward sensitivity as measured by a multivariate battery of in-laboratory tasks (including the Iowa gambling task, balloon analogue risk task, and stoplight task), and self-reported sensation seeking. Reward sensitivity was more strongly associated with sensation seeking in males than females. For both males and females, reward sensitivity was unrelated to age but was higher among those who reported more advanced pubertal development. There were significant sex differences in the effects of self-reported pubertal development on sensation seeking, with a positive association evident in males but a negative association in females. Moreover, gonadal hormones also showed diverging associations with sensation seeking-positive with testosterone but negative with estradiol. Overall, the results indicate that sensation seeking among adolescents and young adults depends on a complex constellation of developmental influences that operate via sex-specific mechanisms. (PsycINFO Database Record
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276
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Boivin JR, Piekarski DJ, Wahlberg JK, Wilbrecht L. Age, sex, and gonadal hormones differently influence anxiety- and depression-related behavior during puberty in mice. Psychoneuroendocrinology 2017; 85:78-87. [PMID: 28837909 PMCID: PMC6596309 DOI: 10.1016/j.psyneuen.2017.08.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/26/2017] [Accepted: 08/08/2017] [Indexed: 01/21/2023]
Abstract
Anxiety and depression symptoms increase dramatically during adolescence, with girls showing a steeper increase than boys after puberty onset. The timing of the onset of this sex bias led us to hypothesize that ovarian hormones contribute to depression and anxiety during puberty. In humans, it is difficult to disentangle direct effects of gonadal hormones from social and environmental factors that interact with pubertal development to influence mental health. To test the role of gonadal hormones in anxiety- and depression-related behavior during puberty, we manipulated gonadal hormones in mice while controlling social and environmental factors. Similar to humans, we find that mice show an increase in depression-related behavior from pre-pubertal to late-pubertal ages, but this increase is not dependent on gonadal hormones and does not differ between sexes. Anxiety-related behavior, however, is more complex during puberty, with differences that depend on sex, age, behavioral test, and hormonal status. Briefly, males castrated before puberty show greater anxiety-related behavior during late puberty compared to intact males, while pubertal females are unaffected by ovariectomy or hormone injections in all assays except the marble burying test. Despite this sex-specific effect of pubertal hormones on anxiety-related behavior, we find no sex differences in intact young adults, suggesting that males and females use separate mechanisms to converge on a similar behavioral phenotype. Our results are consistent with anxiolytic effects of testicular hormones during puberty in males but are not consistent with a causal role for ovarian hormones in increasing anxiety- and depression-related behavior during puberty in females.
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Affiliation(s)
- Josiah R. Boivin
- UC San Francisco, Neuroscience Graduate Program, 1550 4th St., San Francisco, CA 94158, USA
| | - David J. Piekarski
- UC Berkeley, Department of Psychology, 16 Barker Hall, Berkeley, CA 94720, USA
| | - Jessica K. Wahlberg
- UC Berkeley, Department of Psychology, 16 Barker Hall, Berkeley, CA 94720, USA
| | - Linda Wilbrecht
- UC Berkeley, Department of Psychology, 16 Barker Hall, Berkeley, CA 94720, USA; UC Berkeley, Helen Wills Neuroscience Institute, 16 Barker Hall, Berkeley, CA 94720, USA.
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277
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Bauer JA, Claus Henn B, Austin C, Zoni S, Fedrighi C, Cagna G, Placidi D, White RF, Yang Q, Coull BA, Smith D, Lucchini RG, Wright RO, Arora M. Manganese in teeth and neurobehavior: Sex-specific windows of susceptibility. ENVIRONMENT INTERNATIONAL 2017; 108:299-308. [PMID: 28941415 PMCID: PMC5679133 DOI: 10.1016/j.envint.2017.08.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/14/2017] [Accepted: 08/22/2017] [Indexed: 05/04/2023]
Abstract
BACKGROUND Manganese (Mn) is an essential element required for growth and development, but higher body burdens have been associated with neurobehavioral decrements in children. OBJECTIVES We examined whether prenatal or postnatal Mn measured in deciduous teeth was associated with scores on a test of visuospatial learning and memory. METHODS Deciduous teeth were collected from 142 participants (ages 10-14years) residing near varied ferro‑manganese industry in Italy. Mn concentrations were measured in prenatal and postnatal tooth regions by laser ablation inductively coupled plasma mass spectrometry (ICP-MS). The Virtual Radial Arm Maze (VRAM), an animal-human analogue task, was used to assess visuospatial learning and memory. We used generalized additive, linear and zero-inflated Poisson mixed regression models to estimate associations between prenatal or postnatal Mn concentrations and repeated measures of all four VRAM outcomes: time, distance, working and reference memory errors. Effect measure modification by sex was examined in stratified models. RESULTS U-shaped associations between prenatal Mn and VRAM outcomes were observed among girls only (pGAMM=0.001 to 0.02 in stratified models). Compared to the mid-tertile of prenatal Mn, girls in the highest tertile took 7.7s [95% CI: -6.1, 21.5] longer to complete the task, traveled 2.3 maze units [0.1, 4.4] farther, and committed more working and reference memory errors (β for count ratio=1.33 [1.01, 1.83]; 1.10 [0.98, 1.24], respectively). This association was not observed among boys. In contrast, for postnatal Mn, no significant associations were found, and patterns were similar for boys and girls. CONCLUSIONS The prenatal period may be a critical window for the impact of environmental Mn on visuospatial ability and executive function, especially for females.
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Affiliation(s)
- Julia Anglen Bauer
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA.
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Silvia Zoni
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Chiara Fedrighi
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Giuseppa Cagna
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Donatella Placidi
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Roberta F White
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Qiong Yang
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Brent A Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Donald Smith
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Roberto G Lucchini
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Italy
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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278
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Abreu-Villaça Y, Manhães AC, Krahe TE, Filgueiras CC, Ribeiro-Carvalho A. Tobacco and alcohol use during adolescence: Interactive mechanisms in animal models. Biochem Pharmacol 2017; 144:1-17. [DOI: 10.1016/j.bcp.2017.06.113] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/05/2017] [Indexed: 12/13/2022]
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279
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Jay GW, Barkin RL. Primary Headache Disorders Part I- Migraine and the Trigeminal Autonomic Cephalalgias. Dis Mon 2017; 63:308-338. [DOI: 10.1016/j.disamonth.2017.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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280
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Zimmermann TD, Kaiser S, Sachser N. The adaptiveness of a queuing strategy shaped by social experiences during adolescence. Physiol Behav 2017; 181:29-37. [DOI: 10.1016/j.physbeh.2017.08.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/25/2017] [Accepted: 08/26/2017] [Indexed: 10/18/2022]
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281
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Platt JM, Colich NL, McLaughlin KA, Gary D, Keyes KM. Transdiagnostic psychiatric disorder risk associated with early age of menarche: A latent modeling approach. Compr Psychiatry 2017; 79:70-79. [PMID: 28757148 PMCID: PMC5643227 DOI: 10.1016/j.comppsych.2017.06.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 05/04/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Earlier age of pubertal maturation in females is associated with increased risk for mental health problems in adolescence, compared with on-time or later maturation. However, most investigations of pubertal timing and mental health consider risk for individual disorders and fail to account for comorbidity. A latent-modeling approach using a large, nationally representative sample could better explain the transdiagnostic nature of the consequences of early-onset puberty. METHODS Data on age of menarche and mental disorders were drawn from a population-representative sample of adolescents (n=4925), ages 13-17. Confirmatory factor analysis was used to fit four latent disorder categories: distress, eating, and externalizing, and fear disorders. Timing of menarche included those with earlier (age≤10, age 11) and later age of onset (age 13, 14+), relative to those with average timing of menarche (age 12). Associations between timing of menarche and latent disorders were estimated in a structural equation model (SEM), adjusted for age, income, race, parent marital status, BMI, and childhood adversity. RESULTS The measurement model evidenced acceptable fit (CFI=0.91; RMSEA=0.02). Onset of menarche before age 11 was significantly associated with distress disorders (coefficient=0.096; p<0.0001), fear disorders (coefficient=0.09; p<0.0001), and externalizing disorders (coefficient=0.039; p=0.049) as compared to on-time or late menarche. No residual associations of early menarche with individual disorders over and above the latent disorders were observed. CONCLUSION The latent modeling approach illuminated meaningful transdiagnostic psychiatric associations with early timing of menarche. Biological processes initiated at puberty can influence cognitive and affective processes as well as social relationships for adolescents. Under developmentally normative conditions, these changes may be adaptive. However, for those out of sync with their peers, researchers and clinicians should recognize the potential for these processes to influence liability to a broad array of psychopathological consequences in adolescence.
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282
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Gonadal hormones affect alcohol drinking, but not cue+yohimbine-induced alcohol seeking, in male and female rats. Physiol Behav 2017; 203:70-80. [PMID: 29106989 DOI: 10.1016/j.physbeh.2017.10.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/18/2017] [Accepted: 10/23/2017] [Indexed: 11/22/2022]
Abstract
Alcohol use disorder (AUD) is a chronic, relapsing disease characterized by maladaptive patterns of alcohol drinking and seeking. Though sex differences exist in the etiology of AUD, much remains to be elucidated concerning the mechanisms underlying sex-related vulnerability to developing excessive alcohol-motivated behavior. While a large body of evidence points to an important role of circulating gonadal hormones in mediating cocaine reinforcement, findings are less consistent with respect to ethanol. Critically, the effects of gonadal hormones on the reinstatement of ethanol seeking, a model of "craving"-like behavior that reveals pronounced sex differences, has not yet been examined. Thus, the goal of the present experiment was to directly compare manipulations of gonadal hormones in male and female rats on ethanol-motivated behavior. Rats received sham or gonadectomy surgery with or without hormone replacement prior to and throughout three weeks of operant ethanol self-administration to determine the effects of chronically high or low gonadal hormone levels on ethanol drinking. Hormone treatment ceased during extinction training, and the effects of an acute injection of either testosterone (in males) or estradiol (in females) on cue+yohimbine-induced reinstatement of ethanol seeking was determined. Separate groups of gonadally-intact female rats went through similar training, but the effects of either the antiestrogen, fulvestrant, the selective estrogen receptor modulator, clomiphene, or the estrogen receptor β antagonist, PHTPP, on the reinstatement of ethanol seeking were determined. Chronic estradiol replacement produced significant increases in ethanol drinking in female rats, while chronic testosterone significantly decreased ethanol drinking in male rats. Gonadectomy alone only produced modest shifts in drinking towards the opposite-sex pattern, and did not eliminate the robust sex differences that persisted regardless of hormone manipulations. Neither prior chronic nor acute hormone manipulations altered cue+yohimbine-induced reinstatement of ethanol seeking, though blockade of estrogen receptors tended to reduce reinstatement in gonadally-intact females. Overall, our findings indicate that gonadal hormones at least partially mediate, but do not totally account for the sex differences evident in ethanol self-administration, and circulating gonadal hormones have little effect on the reinstatement of ethanol seeking. These results provide a foundation for future studies examining the neuronal mechanisms underlying sex differences in ethanol drinking and seeking.
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283
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Densing K, Konstantinidis H, Seiler M. Effect of Stress Level on Different Forms of Self-Touch in Pre- and Postadolescent Girls. J Mot Behav 2017; 50:475-485. [PMID: 28937951 DOI: 10.1080/00222895.2017.1367640] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Self-touch serves for regulation of both hyper- and hypoarousal. It remains unclear if different forms of self-touch occur in different contexts, and if the regulatory mechanisms are learned or innate. The authors describe forms and context of self-touch, and explore age differences in stress processing. They analyzed hand movements of 10 pre- and 10 postadolescent girls in low-stress and high-stress settings and found 3 forms of self-touch. In postadolescent participants, self-touch 2 (irregular structure, rhythmical, medium intensity) and 3 (phasic structure, single accent, medium intensity) were used for self-regulation, whereas self-touch 1 (irregular structure, single accent, low intensity) had conversational reasons. Increasing immobility might represent the inward focus of stressed participants that tried to focus on the task. No differences were found for preadolescent participants. Differences between pre- and postadolescent participants might be due to brain development during adolescence.
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Affiliation(s)
- Kyra Densing
- a Department of Neurology, Psychosomatic Medicine and Psychiatry , Institute of Health Promotion and Clinical Movement Science, German Sport University Cologne
| | - Hippokrates Konstantinidis
- a Department of Neurology, Psychosomatic Medicine and Psychiatry , Institute of Health Promotion and Clinical Movement Science, German Sport University Cologne
| | - Melanie Seiler
- a Department of Neurology, Psychosomatic Medicine and Psychiatry , Institute of Health Promotion and Clinical Movement Science, German Sport University Cologne
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284
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285
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Inhibited Power Motivation is Associated with the Facial Width-to-Height Ratio in Females. ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 2017. [DOI: 10.1007/s40750-017-0075-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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286
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Parker N, Wong APY, Leonard G, Perron M, Pike B, Richer L, Veillette S, Pausova Z, Paus T. Income inequality, gene expression, and brain maturation during adolescence. Sci Rep 2017; 7:7397. [PMID: 28784996 PMCID: PMC5547165 DOI: 10.1038/s41598-017-07735-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 07/04/2017] [Indexed: 02/03/2023] Open
Abstract
Income inequality is associated with poor health and social outcomes. Negative social comparisons and competition may involve the hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-gonadal (HPG) axes in underlying some of these complex inter-relationships. Here we investigate brain maturation, indexed by age-related decreases in cortical thickness, in adolescents living in neighborhoods with differing levels of income inequality and household income. We examine whether inter-regional variations relate to those in glucocorticoid receptor (HPA) and androgen receptor (HPG) gene expression. For each sex, we used a median split of income inequality and household income (income-to-needs ratio) to create four subgroups. In female adolescents, the high-inequality low-income group displayed the greatest age-related decreases in cortical thickness. In this group, expression of glucocorticoid and androgen receptor genes explained the most variance in these age-related decreases in thickness across the cortex. We speculate that female adolescents living in high-inequality neighborhoods and low-income households may experience greater HPA and HPG activity, leading to steeper decreases in cortical thickness with age.
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Affiliation(s)
- Nadine Parker
- Institute of Medical Science, University of Toronto, Toronto, Canada.,Rotman Research Institute, University of Toronto, Toronto, Canada
| | - Angelita Pui-Yee Wong
- Rotman Research Institute, University of Toronto, Toronto, Canada.,Department of Psychology, University of Toronto, Toronto, Canada
| | - Gabriel Leonard
- Montreal Neurological Institute, McGill University, Montreal, Canada
| | - Michel Perron
- ECOBES, Cégep de Jonquière, Jonquiere, Canada.,University of Quebec in Chicoutimi, Chicoutimi, Canada
| | - Bruce Pike
- Department of Radiology and Hotchkiss Brain Institute, University of Calgary, Calgary, Canada
| | - Louis Richer
- University of Quebec in Chicoutimi, Chicoutimi, Canada
| | - Suzanne Veillette
- ECOBES, Cégep de Jonquière, Jonquiere, Canada.,University of Quebec in Chicoutimi, Chicoutimi, Canada
| | - Zdenka Pausova
- Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Tomas Paus
- Institute of Medical Science, University of Toronto, Toronto, Canada. .,Rotman Research Institute, University of Toronto, Toronto, Canada. .,Department of Psychology, University of Toronto, Toronto, Canada. .,Department of Psychiatry, University of Toronto, Toronto, Canada. .,Child Mind Institute, New York, United States.
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287
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Cracco E, Goossens L, Braet C. Emotion regulation across childhood and adolescence: evidence for a maladaptive shift in adolescence. Eur Child Adolesc Psychiatry 2017; 26:909-921. [PMID: 28190138 DOI: 10.1007/s00787-017-0952-8] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 01/25/2017] [Indexed: 11/28/2022]
Abstract
Dysfunctional emotion regulation is an important predictor of psychopathology. Although many clinical programs focus on emotion regulation skills, the successful application of these programs in children and adolescents requires knowledge on the normative use of emotion regulation strategies over age. To this end, the current cross-sectional study examined changes in emotion regulation throughout childhood and adolescence. The use of seven adaptive and five maladaptive emotion regulation strategies was measured with the FEEL-KJ in a representative sample (N = 1397) of Dutch children and adolescents between 8 and 18 years old. Overall, the results indicated reduced use of adaptive strategies and increased use of maladaptive strategies in participants between 12 and 15 years old compared with younger or older participants. The findings of the current study indicate that adolescence is characterized by a maladaptive shift in emotion regulation. Given that the continued use of dysfunctional emotion regulation plays an important role in the development and maintenance of psychopathology, these results highlight the importance of prevention and treatment programs focused on emotion regulation to shield vulnerable adolescents against mental illness.
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Affiliation(s)
- Emiel Cracco
- Department of Experimental Psychology, Ghent University, Ghent, Belgium.
| | - Lien Goossens
- Department of Developmental, Personality and Social Psychology, Ghent University, Ghent, Belgium
| | - Caroline Braet
- Department of Developmental, Personality and Social Psychology, Ghent University, Ghent, Belgium
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288
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Development of self-inflicted injury: Comorbidities and continuities with borderline and antisocial personality traits. Dev Psychopathol 2017; 28:1071-1088. [PMID: 27739385 DOI: 10.1017/s0954579416000705] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-inflicted injury (SII) is a continuum of intentionally self-destructive behaviors, including nonsuicidal self-injuries, suicide attempts, and death by suicide. These behaviors are among the most pressing yet perplexing clinical problems, affecting males and females of every race, ethnicity, culture, socioeconomic status, and nearly every age. The complexity of these behaviors has spurred an immense literature documenting risk and vulnerability factors ranging from individual to societal levels of analysis. However, there have been relatively few attempts to articulate a life span developmental model that integrates ontogenenic processes across these diverse systems. The objective of this review is to outline such a model with a focus on how observed patterns of comorbidity and continuity can inform developmental theories, early prevention efforts, and intervention across traditional diagnostic boundaries. Specifically, when SII is viewed through the developmental psychopathology lens, it becomes apparent that early temperamental risk factors are associated with risk for SII and a range of highly comorbid conditions, such as borderline and antisocial personality disorders. Prevention efforts focused on early-emerging biological and temperamental contributors to psychopathology have great potential to reduce risk for many presumably distinct clinical problems. Such work requires identification of early biological vulnerabilities, behaviorally conditioned social mechanisms, as well as societal inequities that contribute to self-injury and underlie intergenerational transmission of risk.
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289
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Kaikaew K, Steenbergen J, Themmen APN, Visser JA, Grefhorst A. Sex difference in thermal preference of adult mice does not depend on presence of the gonads. Biol Sex Differ 2017; 8:24. [PMID: 28693572 PMCID: PMC5504804 DOI: 10.1186/s13293-017-0145-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 06/28/2017] [Indexed: 11/17/2022] Open
Abstract
Background The thermoneutral zone (TNZ) is a species-specific range of ambient temperature (Ta), at which mammals can maintain a constant body temperature with the lowest metabolic rate. The TNZ for an adult mouse is between 26 and 34 °C. Interestingly, female mice prefer a higher Ta than male mice although the underlying mechanism for this sex difference is unknown. Here, we tested whether gonadal hormones are dominant factors controlling temperature preference in male and female mice. Methods We performed a temperature preference test in which 10-week-old gonadectomized and sham-operated male and female C57BL/6J mice were allowed to choose to reside at the thermoneutral cage of 29 °C or an experimental cage of 26, 29, or 32 °C. Results All mice preferred a Ta higher than 26 °C, especially in the inactive phase. Choosing between 29 and 32 °C, female mice resided more at 32 °C while male mice had no preference between the temperatures. Hence, the preferred Ta for female mice was significantly higher (0.9 ± 0.2 °C) than that for male mice. However, gonadectomy did not influence the Ta preference. Conclusions Female mice prefer a warmer environment than male mice, a difference not affected by gonadectomy. This suggests that thermal-sensing mechanisms may be influenced by sex-specific pathways other than gonadal factors or that the thermoregulatory set point has already been determined prior to puberty. Electronic supplementary material The online version of this article (doi:10.1186/s13293-017-0145-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kasiphak Kaikaew
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.,Department of Physiology, Faculty of Medicine, Chulalongkorn University, 1873, Rama IV Road, Pathumwan, Bangkok, 10330, Thailand
| | - Jacobie Steenbergen
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Axel P N Themmen
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Jenny A Visser
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Aldo Grefhorst
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.
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290
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Testosterone during Puberty Shifts Emotional Control from Pulvinar to Anterior Prefrontal Cortex. J Neurosci 2017; 36:6156-64. [PMID: 27277794 DOI: 10.1523/jneurosci.3874-15.2016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 04/03/2016] [Indexed: 01/02/2023] Open
Abstract
UNLABELLED Increased limbic and striatal activation in adolescence has been attributed to a relative delay in the maturation of prefrontal areas, resulting in the increase of impulsive reward-seeking behaviors that are often observed during puberty. However, it remains unclear whether and how this general developmental pattern applies to the control of social emotional actions, a fundamental adult skill refined during adolescence. This domain of control pertains to decisions involving emotional responses. When faced with a social emotional challenge (e.g., an angry face), we can follow automatic response tendencies and avoid the challenge or exert control over those tendencies by selecting an alternative action. Using an fMRI-adapted social approach-avoidance task, this study identifies how the neural regulation of emotional action control changes as a function of human pubertal development in 14-year-old adolescents (n = 47). Pubertal maturation, indexed by testosterone levels, shifted neural regulation of emotional actions from the pulvinar nucleus of the thalamus and the amygdala to the anterior prefrontal cortex (aPFC). Adolescents with more advanced pubertal maturation showed greater aPFC activity when controlling their emotional action tendencies, reproducing the same pattern consistently observed in adults. In contrast, adolescents of the same age, but with less advanced pubertal maturation, showed greater pulvinar and amygdala activity when exerting similarly effective emotional control. These findings qualify how, in the domain of social emotional actions, executive control shifts from subcortical to prefrontal structures during pubertal development. The pulvinar and the amygdala are suggested as the ontogenetic precursors of the mature control system centered on the anterior prefrontal cortex. SIGNIFICANCE STATEMENT Adolescents can show distinct behavioral problems when emotionally aroused. This could be related to later development of frontal regions compared with deeper brain structures. This study found that when the control of emotional actions needs to be exerted, more mature adolescents, similar to adults, recruit the anterior prefrontal cortex (aPFC). Less mature adolescents recruit specific subcortical regions, namely the pulvinar and amygdala. These findings identify the subcortical pulvino-amygdalar pathway as a relevant precursor of a mature aPFC emotional control system, opening the way for a neurobiological understanding of how emotion control-related disorders emerge during puberty.
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291
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Harvey ND, Craigon PJ, Blythe SA, England GCW, Asher L. An evidence-based decision assistance model for predicting training outcome in juvenile guide dogs. PLoS One 2017; 12:e0174261. [PMID: 28614347 PMCID: PMC5470660 DOI: 10.1371/journal.pone.0174261] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 03/06/2017] [Indexed: 11/18/2022] Open
Abstract
Working dog organisations, such as Guide Dogs, need to regularly assess the behaviour of the dogs they train. In this study we developed a questionnaire-style behaviour assessment completed by training supervisors of juvenile guide dogs aged 5, 8 and 12 months old (n = 1,401), and evaluated aspects of its reliability and validity. Specifically, internal reliability, temporal consistency, construct validity, predictive criterion validity (comparing against later training outcome) and concurrent criterion validity (comparing against a standardised behaviour test) were evaluated. Thirty-nine questions were sourced either from previously published literature or created to meet requirements identified via Guide Dogs staff surveys and staff feedback. Internal reliability analyses revealed seven reliable and interpretable trait scales named according to the questions within them as: Adaptability; Body Sensitivity; Distractibility; Excitability; General Anxiety; Trainability and Stair Anxiety. Intra-individual temporal consistency of the scale scores between 5–8, 8–12 and 5–12 months was high. All scales excepting Body Sensitivity showed some degree of concurrent criterion validity. Predictive criterion validity was supported for all seven scales, since associations were found with training outcome, at at-least one age. Thresholds of z-scores on the scales were identified that were able to distinguish later training outcome by identifying 8.4% of all dogs withdrawn for behaviour and 8.5% of all qualified dogs, with 84% and 85% specificity. The questionnaire assessment was reliable and could detect traits that are consistent within individuals over time, despite juvenile dogs undergoing development during the study period. By applying thresholds to scores produced from the questionnaire this assessment could prove to be a highly valuable decision-making tool for Guide Dogs. This is the first questionnaire-style assessment of juvenile dogs that has shown value in predicting the training outcome of individual working dogs.
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Affiliation(s)
- Naomi D. Harvey
- School of Veterinary Medicine and Science, The University of Nottingham, Sutton Bonington Campus, Leicester, United Kingdom
- * E-mail:
| | - Peter J. Craigon
- School of Veterinary Medicine and Science, The University of Nottingham, Sutton Bonington Campus, Leicester, United Kingdom
| | - Simon A. Blythe
- School of Veterinary Medicine and Science, The University of Nottingham, Sutton Bonington Campus, Leicester, United Kingdom
- The Guide Dogs for the Blind Association, Hillfields, Burghfield Common, Reading, Berkshire, United Kingdom
| | - Gary C. W. England
- School of Veterinary Medicine and Science, The University of Nottingham, Sutton Bonington Campus, Leicester, United Kingdom
| | - Lucy Asher
- School of Veterinary Medicine and Science, The University of Nottingham, Sutton Bonington Campus, Leicester, United Kingdom
- Centre for Behaviour and Evolution, Henry Wellcome Building, Newcastle University, Newcastle, United Kingdom
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292
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Huyck JJ, Wright BA. Transient sex differences during adolescence on auditory perceptual tasks. Dev Sci 2017; 21:e12574. [PMID: 28585226 DOI: 10.1111/desc.12574] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 03/22/2017] [Indexed: 01/02/2023]
Abstract
Many perceptual abilities differ between the sexes. Because these sex differences have been documented almost exclusively in adults, they have been attributed to sex-specific neural circuitry that emerges during development and is maintained in the mature perceptual system. To investigate whether behavioral sex differences in perception can also have other origins, we compared performance between males and females ranging in age from 8 to 30 years on auditory temporal-interval discrimination and tone-in-noise detection tasks on which there are no sex differences in adults. If sex differences in perception arise only from the establishment and subsequent maintenance of sex-specific neural circuitry, there should be no sex differences during development on these tasks. In contrast, sex differences emerged in adolescence but resolved by adulthood on two of the six conditions, with signs of a similar pattern on a third condition. In each case, males reached mature performance earlier than females, resulting in a sex difference in the interim. These results suggest that sex differences in perception may arise from differences in the maturational timing of common circuitry used by both sexes. They also imply that sex differences in perceptual abilities may be more prevalent than previously thought based on adult data alone.
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Affiliation(s)
- Julia Jones Huyck
- Speech Pathology and Audiology Program, Kent State University, Kent, Ohio, USA
| | - Beverly A Wright
- Department of Communication Sciences and Disorders and Knowles Hearing Center, Northwestern University, Evanston, Illinois, USA
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293
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Suleiman AB, Galván A, Harden KP, Dahl RE. Becoming a sexual being: The 'elephant in the room' of adolescent brain development. Dev Cogn Neurosci 2017; 25:209-220. [PMID: 27720399 PMCID: PMC6987766 DOI: 10.1016/j.dcn.2016.09.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 08/25/2016] [Accepted: 09/26/2016] [Indexed: 12/11/2022] Open
Abstract
The onset of adolescence is a time of profound changes in motivation, cognition, behavior, and social relationships. Existing neurodevelopmental models have integrated our current understanding of adolescent brain development; however, there has been surprisingly little focus on the importance of adolescence as a sensitive period for romantic and sexual development. As young people enter adolescence, one of their primary tasks is to gain knowledge and experience that will allow them to take on the social roles of adults, including engaging in romantic and sexual relationships. By reviewing the relevant human and animal neurodevelopmental literature, this paper highlights how we should move beyond thinking of puberty as simply a set of somatic changes that are critical for physical reproductive maturation. Rather, puberty also involves a set of neurobiological changes that are critical for the social, emotional, and cognitive maturation necessary for reproductive success. The primary goal of this paper is to broaden the research base and dialogue about adolescent romantic and sexual development, in hopes of advancing understanding of sex and romance as important developmental dimensions of health and well-being in adolescence.
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Affiliation(s)
- Ahna Ballonoff Suleiman
- University of California Berkeley-Institute for Human Development, 1121 Tolman Hall #1690, Berkeley, CA 94720-1690, USA.
| | - Adriana Galván
- University of California Los Angeles, Department of Psychology, 1285 Franz Hall, Box 951563 Los Angeles, CA 90095-1563, USA
| | - K Paige Harden
- University of Austin, Texas, Population Research Center, 305 E. 23rd St., Stop G1800, Austin, TX 78712-1699, USA
| | - Ronald E Dahl
- University of California Berkeley-Institute for Human Development, 1121 Tolman Hall #1690, Berkeley, CA 94720-1690, USA
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294
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Chen FR, Rothman EF, Jaffee SR. Early Puberty, Friendship Group Characteristics, and Dating Abuse in US Girls. Pediatrics 2017; 139:peds.2016-2847. [PMID: 28562261 DOI: 10.1542/peds.2016-2847] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/16/2017] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The current study aimed to investigate the relationship between advanced pubertal development and adolescent dating abuse (ADA) and to test if this relationship is moderated by friendship group characteristics in a nationally representative sample of US girls. METHODS Data were drawn from wave 1 and 2 (1995-1996) of the National Longitudinal Study of Adolescent to Adult Health. The sample included 3870 girls aged 13 to 17 years, all of whom were in romantic and/or nonromantic sexual relationships. Relative pubertal development was measured as perceived physical development as compared with peers of the same age and race and age at menarche at wave 1. Participants reported at wave 2 whether they had experienced any verbal or physical abuse in their relationships. Friendship group characteristics included the percentage of boy friends, older friends, and friends' risk behavior level. RESULTS Negative binomial regression analyses revealed an interaction between advanced pubertal development and percentage of boy friends on ADA victimization, adjusted for age, race, parents' marital status, household income, number of relationships, self-esteem, self-control, and antisocial behavior history. Advanced pubertal development was associated with more ADA victimization when girls' friendship groups comprised a higher percentage of boys. CONCLUSIONS Findings highlight the importance of pubertal timing and friendship group characteristics to ADA victimization. Early pubertal development is a risk marker for ADA victimization, particularly when a higher percentage of girls' friends are boys. Pediatricians and adolescent health specialists should be sensitive to the elevated risk for ADA victimization in early-maturing girls.
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Affiliation(s)
- Frances R Chen
- Department of Criminal Justice and Criminology, Georgia State University, Atlanta, Georgia.,Departments of Criminology and
| | - Emily F Rothman
- Department of Community Health Sciences, Boston University, Boston, Massachusetts
| | - Sara R Jaffee
- Psychology, University of Pennsylvania, Philadelphia, Pennsylvania; and
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295
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Eisenegger C, Kumsta R, Naef M, Gromoll J, Heinrichs M. Testosterone and androgen receptor gene polymorphism are associated with confidence and competitiveness in men. Horm Behav 2017; 92:93-102. [PMID: 27702564 DOI: 10.1016/j.yhbeh.2016.09.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 09/24/2016] [Accepted: 09/29/2016] [Indexed: 11/27/2022]
Abstract
A contribution to a special issue on Hormones and Human Competition. Studies in non-human animals and humans have demonstrated the important role of testosterone in competitive interactions. Here, we investigated whether endogenous testosterone levels predict the decision to compete, in a design excluding spite as a motive underlying competitiveness. In a laboratory experiment with real monetary incentives, 181 men solved arithmetic problems, first under a noncompetitive piece rate, followed by a competition incentive scheme. We also assessed several parameters relevant to competition, such as risk taking, performance, and confidence in one's own performance. Salivary testosterone levels were measured before and 20min after the competition task using mass spectrometry. Participants were also genotyped for the CAG repeat polymorphism of the androgen receptor gene, known to influence the efficacy of testosterone signaling in a reciprocal relationship to the number of CAG repeats. We observed a significant positive association between basal testosterone levels and the decision to compete, and that higher testosterone levels were related to greater confidence in one's own performance. Whereas the number of CAG repeats was not associated with the choice to compete, a lower number of CAG repeats was related to greater confidence in those who chose to compete, but this effect was attributable to the polymorphism's effect on actual performance. An increase in testosterone levels was observed following the experiment, and this increase varied with self-reported high-school math grades. We expand upon the latest research by documenting effects of the androgen system in confidence in one's own ability, and conclude that testosterone promotes competitiveness without spite.
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Affiliation(s)
- Christoph Eisenegger
- Neuropsychopharmacology and Biopsychology Unit, Faculty of Psychology, University of Vienna, Austria.
| | - Robert Kumsta
- Department of Genetic Psychology, Faculty of Psychology, Ruhr-University Bochum, Germany.
| | - Michael Naef
- Department of Economics, Royal Holloway, University of London, United Kingdom
| | - Jörg Gromoll
- Department of Reproductive Medicine, University of Münster, Germany
| | - Markus Heinrichs
- Department of Psychology, Laboratory for Biological and Personality Psychology, University of Freiburg, Freiburg, Germany; Freiburg Brain Imaging Center, University Medical Center, University of Freiburg, Germany
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296
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Ordaz SJ, Fritz BL, Forbes EE, Luna B. The influence of pubertal maturation on antisaccade performance. Dev Sci 2017; 21:e12568. [PMID: 28557196 DOI: 10.1111/desc.12568] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 02/23/2017] [Indexed: 10/19/2022]
Abstract
Adolescence is a period characterized by continued improvements in inhibitory control, and this persisting immaturity is believed to interact with affective/motivational behavior to generate the impulsive and risk-taking behavior evidenced at this time. Puberty is a central event of adolescence that has been shown to influence affective/motivational behavior. However, despite plausible mechanisms by which puberty might influence inhibitory control, researchers have yet to test this possibility rigorously. Thus, we designed a study to examine the unique role of pubertal maturation, independent of age, in the development of inhibitory control. In order to minimize age-related variability while maximizing pubertal status variability, we recruited 78 participants (34 F) whose ages narrowly spanned the mean age of gonadarche for each sex (F: ages 11-13, M: ages 12-14). Two complementary measures were used to assess pubertal status: (1) circulating blood serum testosterone and estradiol levels reflecting internal manifestations of pubertal maturation, and (2) Tanner staging by a trained nurse reflecting pubertal maturation's external manifestations. Inhibitory control was assessed using the antisaccade task, and findings were adjusted for the potential effect of age. Results revealed no association between testosterone levels and error rates or response latencies in either sex. In girls, estradiol levels were not associated with error rates, but were associated with faster response latencies. There was similarly no association between Tanner status and error rates, although girls in more advanced pubertal stages showed faster response latencies. Power analyses indicate that findings of a lack of association did not reflect limited statistical power. Thus, in a study designed to isolate the effects of pubertal maturation independent of age, both external and internal indices of pubertal maturation converged to indicate that age-related improvements in cold antisaccade performance are independent of pubertal maturation.
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Affiliation(s)
- Sarah J Ordaz
- Department of Psychology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Barbara L Fritz
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Erika E Forbes
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Beatriz Luna
- Department of Psychology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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297
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Oboti L, Trova S, Schellino R, Marraudino M, Harris NR, Abiona OM, Stampar M, Lin W, Peretto P. Activity Dependent Modulation of Granule Cell Survival in the Accessory Olfactory Bulb at Puberty. Front Neuroanat 2017; 11:44. [PMID: 28588456 PMCID: PMC5440572 DOI: 10.3389/fnana.2017.00044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 05/01/2017] [Indexed: 11/23/2022] Open
Abstract
The vomeronasal system (VNS) is specialized in the detection of salient chemical cues triggering social and neuroendocrine responses. Such responses are not always stereotyped, instead, they vary depending on age, sex, and reproductive state, yet the mechanisms underlying this variability are unclear. Here, by analyzing neuronal survival in the first processing nucleus of the VNS, namely the accessory olfactory bulb (AOB), through multiple bromodeoxyuridine birthdating protocols, we show that exposure of female mice to male soiled bedding material affects the integration of newborn granule interneurons mainly after puberty. This effect is induced by urine compounds produced by mature males, as bedding soiled by younger males was ineffective. The granule cell increase induced by mature male odor exposure is not prevented by pre-pubertal ovariectomy, indicating a lesser role of circulating estrogens in this plasticity. Interestingly, the intake of adult male urine-derived cues by the female vomeronasal organ increases during puberty, suggesting a direct correlation between sensory activity and AOB neuronal plasticity. Thus, as odor exposure increases the responses of newly born cells to the experienced stimuli, the addition of new GABAergic inhibitory cells to the AOB might contribute to the shaping of vomeronasal processing of male cues after puberty. Consistently, only after puberty, female mice are capable to discriminate individual male odors through the VNS.
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Affiliation(s)
- Livio Oboti
- Center for Neuroscience Research, Children's National Health System, WashingtonDC, United States
| | - Sara Trova
- Department of Life Sciences and Systems Biology, Neuroscience Institute Cavalieri Ottolenghi, University of TorinoOrbassano, Italy
| | - Roberta Schellino
- Department of Life Sciences and Systems Biology, Neuroscience Institute Cavalieri Ottolenghi, University of TorinoOrbassano, Italy.,Department of Neurosciences "Rita Levi Montalcini", University of TurinTurin, Italy
| | - Marilena Marraudino
- Department of Life Sciences and Systems Biology, Neuroscience Institute Cavalieri Ottolenghi, University of TorinoOrbassano, Italy.,Department of Neurosciences "Rita Levi Montalcini", University of TurinTurin, Italy
| | - Natalie R Harris
- Department of Biological Sciences, University of Maryland, Baltimore County, BaltimoreMD, United States
| | - Olubukola M Abiona
- Department of Biological Sciences, University of Maryland, Baltimore County, BaltimoreMD, United States
| | - Mojca Stampar
- Research Center for Genetic Medicine, Children's National Health System, WashingtonDC, United States
| | - Weihong Lin
- Department of Biological Sciences, University of Maryland, Baltimore County, BaltimoreMD, United States
| | - Paolo Peretto
- Department of Life Sciences and Systems Biology, Neuroscience Institute Cavalieri Ottolenghi, University of TorinoOrbassano, Italy
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298
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Liu J, Wang D, Li X, Wang N. Association Between Sex and Speech Auditory Brainstem Responses in Adults, and Relationship to Sex Hormone Levels. Med Sci Monit 2017; 23:2275-2283. [PMID: 28501877 PMCID: PMC5439379 DOI: 10.12659/msm.904651] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 04/26/2017] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the association between sex and speech-ABR in adults, and its relationship to sex hormone levels. MATERIAL AND METHODS Speech-ABR were elicited with the consonant-vowel syllable (/da/) in a total of 35 adults. Reproductive hormone levels were also measured. RESULTS The transient response of the speech-ABR (waves V, A, and O) in females show a shorter latency (waves V, A and O) and a larger amplitude (waves V and A) than in males (P<0.05), except for the amplitude of peak O (P>0.05). The sustained response of females exhibited a larger amplitude (wave F, P<0.05) and a shorter latency (wave D, E, and F, P<0.05) than in males, except for the amplitude of peak D and E (P>0.05). The latencies of speech-ABR were positively correlated with testosterone level (P<0.05), and were negatively correlated with estradiol (E2) levels (P<0.05), except for wave E (P>0.05). The E2 showed a positive correlation with the absolute value of amplitude of the speech-ABR (P < 0.05). On the contrary, total testosterone showed a negative correlation with the absolute value of amplitude the speech-ABR (P<0.05), except for wave D and wave O (P>0.05). CONCLUSIONS Sex differences in speech-ABR are significant in adults. The latencies and amplitude of the speech-ABR waves were correlated with the E2 concentration and testosterone level. The sex hormones likely affect speech encoding in the brainstem.
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Affiliation(s)
- Jinfeng Liu
- Corresponding Author: Jinfeng Liu, e-mail: or Ningyu Wang, e-mail:
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299
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Zhang W, Suo T, Zhang P, Zhao C, Liao C, Zhang L, Li H. Temperamental Effortful Control Modulates Gender Differences in Late Positive Potentials Evoked by Affective Pictures in Adolescents. Dev Neuropsychol 2017; 42:220-230. [PMID: 28497994 DOI: 10.1080/87565641.2017.1315806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We investigated whether effort control (EC) modulates gender differences in late positive potential (LPP) evoked by affective pictures. We collected EEG data from 46 healthy adolescents while they viewed 90 affective pictures. Relative to neutral pictures, boys showed larger LPP amplitudes for positive pictures compared to girls while girls showed larger LPP amplitudes for negative pictures compared to boys. Temperamental EC in boys negatively predicted LPP amplitudes for positive pictures, whereas EC in girls negatively predicted LPP amplitudes for negative pictures. These observations increase our understanding of the relationship between EC and gender difference in electrocortical maturation.
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Affiliation(s)
- Wenhai Zhang
- a College of Education Science , Chengdu University , Chengdu , China.,b Mental Health Center , Yancheng Institute of Technology , Yancheng , China.,c Research Center of Brain and Cognitive Neuroscience , Liaoning Normal University , Dalian , China
| | - Tao Suo
- d Institute of Psychology and Behavior, School of Education Science , Henan University , Kaifeng , China
| | - Ping Zhang
- c Research Center of Brain and Cognitive Neuroscience , Liaoning Normal University , Dalian , China
| | - Cancan Zhao
- c Research Center of Brain and Cognitive Neuroscience , Liaoning Normal University , Dalian , China
| | - Caizhi Liao
- a College of Education Science , Chengdu University , Chengdu , China
| | - Liwei Zhang
- e Department of Science and Technology , Jinzhou Medical University , Jinzhou , China
| | - Hong Li
- a College of Education Science , Chengdu University , Chengdu , China
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300
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Motta-Mena NV, Puts DA. Endocrinology of human female sexuality, mating, and reproductive behavior. Horm Behav 2017; 91:19-35. [PMID: 27866819 DOI: 10.1016/j.yhbeh.2016.11.012] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 11/02/2016] [Accepted: 11/12/2016] [Indexed: 10/20/2022]
Abstract
Hormones orchestrate and coordinate human female sexual development, sexuality, and reproduction in relation to three types of phenotypic changes: life history transitions such as puberty and childbirth, responses to contextual factors such as caloric intake and stress, and cyclical patterns such as the ovulatory cycle. Here, we review the endocrinology underlying women's reproductive phenotypes, including sexual orientation and gender identity, mate preferences, competition for mates, sex drive, and maternal behavior. We highlight distinctive aspects of women's sexuality such as the possession of sexual ornaments, relatively cryptic fertile windows, extended sexual behavior across the ovulatory cycle, and a period of midlife reproductive senescence-and we focus on how hormonal mechanisms were shaped by selection to produce adaptive outcomes. We conclude with suggestions for future research to elucidate how hormonal mechanisms subserve women's reproductive phenotypes.
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Affiliation(s)
- Natalie V Motta-Mena
- Department of Psychology, Pennsylvania State University, University Park, PA 16802, United States
| | - David A Puts
- Department of Anthropology, Center for Brain, Behavior, and Cognition, Center for Human Evolution and Diversity, Pennsylvania State University, University Park, PA 16802¸ United States.
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