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Wagels L, Votinov M, Radke S, Clemens B, Montag C, Jung S, Habel U. Blunted insula activation reflects increased risk and reward seeking as an interaction of testosterone administration and the MAOA polymorphism. Hum Brain Mapp 2017; 38:4574-4593. [PMID: 28603901 DOI: 10.1002/hbm.23685] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/22/2017] [Accepted: 05/31/2017] [Indexed: 12/26/2022] Open
Abstract
Testosterone, a male sex hormone, has been suggested to partly explain mixed findings in males and females when investigating behavioral tendencies associated with the MAOA polymorphism. Prior studies indicated that the MAOA polymorphism represents a vulnerability factor for financial risk-taking and harm avoidance and that testosterone increases human risk-taking. We therefore assumed an interactive influence of the MAOA polymorphism and testosterone application on decision making and corresponding neural correlates in a risk and reward context. Stratified for the MAOA polymorphism (S =short, L =long), 103 healthy males were assigned to a placebo or testosterone group (double blind, randomized) receiving a topical gel containing 50 mg testosterone. During a functional MRI scan, the participants performed a sequential decision making task. Our results indicate that testosterone and the MAOA polymorphism jointly influence sequential decision making. The MAOA-S variant was associated with less automatic harm avoidance as reflected in response times on safe decisions. Moreover, after testosterone administration, MAOA-S carriers were more risk-taking. Overall activity in the anterior cingulate cortex, anterior insula and inferior frontal gyrus increased with growing risk for losses. In the anterior insula, testosterone administration mitigated this effect solely in MAOA-S carriers. This might be a reflection of an improved coping during risk-reward conflicts subsequently modulating risky decision making. While the molecular basis is not well defined so far, our results support the assumption of testosterone as a modulatory factor for previously reported sex differences of behavioral associations with the MAOA-S variant. Hum Brain Mapp 38:4574-4593, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Lisa Wagels
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, Uniklinik RWTH Aachen, Aachen, Germany.,Institute of Neuroscience and Medicine 10, Research Center Jülich, Jülich, Germany.,JARA-Institute Brain Structure Function Relationship, Research Center Jülich and RWTH Aachen, Aachen, Germany
| | - Mikhail Votinov
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, Uniklinik RWTH Aachen, Aachen, Germany.,Institute of Neuroscience and Medicine 10, Research Center Jülich, Jülich, Germany
| | - Sina Radke
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, Uniklinik RWTH Aachen, Aachen, Germany.,JARA-Institute Brain Structure Function Relationship, Research Center Jülich and RWTH Aachen, Aachen, Germany
| | - Benjamin Clemens
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, Uniklinik RWTH Aachen, Aachen, Germany
| | - Christian Montag
- Institue of Psychology and Education, Ulm University, Ulm, Germany.,Key laboratory for NeuroInformation/Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Sonja Jung
- Institue of Psychology and Education, Ulm University, Ulm, Germany
| | - Ute Habel
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, Uniklinik RWTH Aachen, Aachen, Germany.,JARA-Institute Brain Structure Function Relationship, Research Center Jülich and RWTH Aachen, Aachen, Germany
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Welker KM, Norman RE, Goetz S, Moreau BJP, Kitayama S, Carré JM. Preliminary evidence that testosterone's association with aggression depends on self-construal. Horm Behav 2017; 92:117-127. [PMID: 27816624 DOI: 10.1016/j.yhbeh.2016.10.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 10/17/2016] [Accepted: 10/18/2016] [Indexed: 10/20/2022]
Abstract
A contribution to a special issue on Hormones and Human Competition. Previous research and theory suggest testosterone is an important hormone for modulating aggression and self-regulation. We propose that self-construal, a culturally-relevant difference in how individuals define the self in relation to others, may be an important moderator of the relationship between testosterone and behaviors linked to aggression. Within two studies (Study 1 N=80; Study 2 N=237) and an integrated data analysis, we find evidence suggesting that acute testosterone changes in men are positively associated with aggressive behavior for those with more independent self-construals, whereas basal testosterone is negatively associated with aggression when individuals have more interdependent self-construals. Although preliminary, these findings suggest that self-construal moderates the association between testosterone and aggression, thereby paving the way toward future work examining the potential cultural moderation of the behavioral effects of testosterone.
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Casto KV, Prasad S. Recommendations for the study of women in hormones and competition research. Horm Behav 2017; 92:190-194. [PMID: 28526234 DOI: 10.1016/j.yhbeh.2017.05.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 05/15/2017] [Indexed: 02/08/2023]
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Coates J, Gurnell M. Combining field work and laboratory work in the study of financial risk-taking. Horm Behav 2017; 92:13-19. [PMID: 28174099 DOI: 10.1016/j.yhbeh.2017.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 02/01/2023]
Abstract
A contribution to a special issue on Hormones and Human Competition. Financial markets are periodically destabilized by bubbles and crashes during which investors display respectively what has been called "irrational exuberance" and "irrational pessimism". How can we best study these pathologies in competitive and risk-taking behaviours? In this article, we argue that a science of risk-taking and of the financial markets needs to draw heavily on physiology and especially endocrinology, due to their central roles in moderating human behaviour. Importantly, this science of competition and risk requires the same spectrum of research protocols as is found in mature biological and medical sciences, a spectrum running from field work conducted within financial institutions themselves to more controlled laboratory studies, which permit cause to be distinguished from effect. Such a spectrum of studies is especially important for translational behavioural science.
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Affiliation(s)
- John Coates
- Dewline Research, London, W8, United Kingdom.
| | - Mark Gurnell
- Wellcome Trust-MRC Institute of Metabolic Science & NIHR Cambridge Biomedical Research Centre, University of Cambridge & Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom
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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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Stanton SJ. The role of testosterone and estrogen in consumer behavior and social & economic decision making: A review. Horm Behav 2017; 92:155-163. [PMID: 27840103 DOI: 10.1016/j.yhbeh.2016.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 09/21/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
Abstract
A contribution to a special issue on Hormones and Human Competition.This manuscript reviews the current literature on the actions of the steroid hormones testosterone and estradiol in shaping humans' behavior within two applied contexts, specifically consumer behavior and decision making (both social and economic). The theoretical argument put forth is that steroids shape these everyday behaviors and choices in service to being more competitive in achieving long-term goals related to resource acquisition, mating success, and social dominance. In addition, a discussion of the increased research focus on the role of steroids in other applied business domains will highlight the relevant applications of basic science discoveries in behavioral endocrinology.
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Affiliation(s)
- Steven J Stanton
- Department of Management and Marketing, 420 Elliott Hall, Oakland University, Rochester, MI 48309, United States.
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Wagels L, Radke S, Goerlich KS, Habel U, Votinov M. Exogenous testosterone decreases men's personal distance in a social threat context. Horm Behav 2017; 90:75-83. [PMID: 28263765 DOI: 10.1016/j.yhbeh.2017.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/18/2017] [Accepted: 03/01/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND Testosterone can motivate human approach and avoidance behavior. Specifically, the conscious recognition of and implicit reaction to angry facial expressions is influenced by testosterone. The study tested whether exogenous testosterone modulates the personal distance (PD) humans prefer in a social threat context. METHODS 82 healthy male participants underwent either transdermal testosterone (testosterone group) or placebo application (placebo group). Each participant performed a computerized stop-distance task before (T1) and 3.5h after (T2) treatment, during which they indicated how closely they would approach a human, animal or virtual character with varying emotional expression. RESULTS Men's PD towards humans and animals varied as a function of their emotional expression. In the testosterone group, a pre-post comparison indicated that the administration of 50mg testosterone was associated with a small but significant reduction of men's PD towards aggressive individuals. Men in the placebo group did not change the initially chosen PD after placebo application independent of the condition. However comparing the testosterone and placebo group after testosterone administration did not reveal significant differences. While the behavioral effect was small and only observed as within-group effect it was repeatedly and selectively shown for men's PD choices towards an angry woman, angry man and angry dog in the testosterone group. In line with the literature, our findings in young men support the influential role of exogenous testosterone on male's approach behavior during social confrontations.
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Affiliation(s)
- Lisa Wagels
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany.
| | - Sina Radke
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany; JARA-Institute Brain Structure Function Relationship, Research Center Jülich and RWTH Aachen, Aachen, Germany
| | - Katharina Sophia Goerlich
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Ute Habel
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany; JARA-Institute Brain Structure Function Relationship, Research Center Jülich and RWTH Aachen, Aachen, Germany
| | - Mikhail Votinov
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany; JARA-Institute Brain Structure Function Relationship, Research Center Jülich and RWTH Aachen, Aachen, Germany; Institute of Neuroscience and Medicine 10, Research Center Jülich, Jülich, Germany
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Diekhof EK, Kraft S. The association between endogenous testosterone level and behavioral flexibility in young men - Evidence from stimulus-outcome reversal learning. Horm Behav 2017; 89:193-200. [PMID: 28185881 DOI: 10.1016/j.yhbeh.2017.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 02/03/2017] [Accepted: 02/05/2017] [Indexed: 11/21/2022]
Abstract
The capacity to flexibly adapt responding to unexpected changes in the environment is crucial for survival. Several neurotransmitters have been implicated in stimulus-outcome reversal learning. Yet, it remains an open question whether inter-individual differences in the neuroactive hormone testosterone may also be related to this type of behavioral flexibility. In this study we assessed the association between endogenous testosterone level and reversal learning in young healthy men. We used an observer reversal learning task, in which subjects viewed computer-based decisions between two stimuli, of which one was currently rewarded while the other one was punished. Contingencies reversed unpredictably every 5-9 trials. Subjects had to indicate the current outcome association before the actual outcome was revealed. In the trial following an unexpected reversal either the same stimulus from the reversal (experienced reversal), or its alternative, for which the reversal had not yet been shown (inferred reversal), could be chosen by the computer, and subjects had to adapt responding accordingly. We found that testosterone predicted better post-reversal performance. This correlation was strongest in the more difficult inferred reversal condition, particularly in impulsive individuals. Collectively, these data support the view that endogenous testosterone may enhance behavioral flexibility in men, particularly when working memory demand is high and subjects have to update several stimulus-outcome contingencies at the same time. It remains to be further elucidated whether this testosterone effect was achieved through an interaction with dopaminergic transmission or through direct interplay with androgen receptors in the brain regions implicated in reversal learning.
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Affiliation(s)
- Esther K Diekhof
- University of Hamburg, Biological Department, Zoological Institute, Neuroendocrinology Unit, Germany.
| | - Susanne Kraft
- University of Hamburg, Biological Department, Zoological Institute, Neuroendocrinology Unit, Germany
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Lago T, Davis A, Grillon C, Ernst M. Striatum on the anxiety map: Small detours into adolescence. Brain Res 2017; 1654:177-184. [PMID: 27276526 PMCID: PMC5140771 DOI: 10.1016/j.brainres.2016.06.006] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/09/2016] [Accepted: 06/03/2016] [Indexed: 12/28/2022]
Abstract
Adolescence is the most sensitive period for the development of pathological anxiety. Moreover, specific neural changes associated with the striatum might be related to adolescent vulnerability to anxiety. Up to now, the study of anxiety has primarily focused on the amygdala, bed nucleus of the stria terminalis (BNST), hippocampus and ventromedial prefrontal cortex (vmPFC), while the striatum has typically not been considered as part of the anxiety system. This review proposes the addition of the striatum, a complex, multi-component structure, to the anxiety network by underscoring two lines of research. First, the co-occurrence of the adolescent striatal development with the peak vulnerability of adolescents to anxiety disorders might potentially reflect a causal relationship. Second, the recognition of the role of the striatum in fundamental behavioral processes that do affect anxiety supports the putative importance of the striatum in anxiety. These behavioral processes include (1) attention, (2) conditioning/prediction error, and (3) motivation. This review proposes a simplistic schematic representation of the anxiety circuitry that includes the striatum, and aims to promote further work in this direction, as the role of the striatum in shaping an anxiety phenotype during adolescence could have critical implications for understanding and preventing the peak onset of anxiety disorders during this period. This article is part of a Special Issue entitled SI: Adolescent plasticity.
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Affiliation(s)
- Tiffany Lago
- The National Institute of Mental Health, National Institutes of Health, Section on Neurobiology of Fear and Anxiety (SNFA), National Institute of Mental Health/NIH, 15K North Drive, Bethesda, MD 20892 USA.
| | - Andrew Davis
- The National Institute of Mental Health, National Institutes of Health, Section on Neurobiology of Fear and Anxiety (SNFA), National Institute of Mental Health/NIH, 15K North Drive, Bethesda, MD 20892 USA.
| | - Christian Grillon
- The National Institute of Mental Health, National Institutes of Health, Section on Neurobiology of Fear and Anxiety (SNFA), National Institute of Mental Health/NIH, 15K North Drive, Bethesda, MD 20892 USA.
| | - Monique Ernst
- The National Institute of Mental Health, National Institutes of Health, Section on Neurobiology of Fear and Anxiety (SNFA), National Institute of Mental Health/NIH, 15K North Drive, Bethesda, MD 20892 USA.
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Barel E, Shahrabani S, Tzischinsky O. Sex Hormone/Cortisol Ratios Differentially Modulate Risk-Taking in Men and Women. EVOLUTIONARY PSYCHOLOGY 2017; 15:1474704917697333. [PMID: 28274134 PMCID: PMC10480923 DOI: 10.1177/1474704917697333] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 01/30/2017] [Indexed: 09/09/2023] Open
Abstract
The present study aimed to extend the original focus of the dual-hormone hypothesis on testosterone and cortisol involvement in risk-taking to other sex hormones: estrogen and progesterone. The study also examined two alternative models for the proposed relationship between cortisol and sex steroids and for their joint influence on risk-taking: interaction and ratio terms. In all, 40 women and 37 men were tested for circulating sex hormones and provided self-reports on risk-taking. The findings suggest that sex hormone-cortisol ratios differentially modulate risk-taking in men and women: In men, high ratios were associated with risk-taking, whereas in women the opposite pattern was found. The findings are discussed in light of evolutionary assumptions regarding sex differences in neuroendocrine mechanisms, suggesting sex differences in neural sensitivity to sex hormones in risk-taking.
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Affiliation(s)
- Efrat Barel
- Department of Psychology, The Max Stern Academic College of Emek Yezreel, Emek Yezreel, Israel
| | - Shosh Shahrabani
- Department of Econmics and Management, The Max Stern Academic College of Emek Yezreel, Emek Yezreel, Israel
| | - Orna Tzischinsky
- Department of Behavioral Sciences, The Max Stern Academic College of Emek Yezreel, Emek Yezreel, Israel
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Wu Y, Liu J, Qu L, Eisenegger C, Clark L, Zhou X. Single dose testosterone administration reduces loss chasing in healthy females. Psychoneuroendocrinology 2016; 71:54-7. [PMID: 27236486 DOI: 10.1016/j.psyneuen.2016.05.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/03/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
Abstract
Testosterone has been linked to modulation of impulsivity and risky choice, potentially mediated by changes in reward or punishment sensitivity. This study investigated the effect of testosterone on risk-taking and the adjustment of risk-taking on trials following a gain or a loss. Loss chasing is operationalized herein as the propensity to recover losses by increasing risky choice. Healthy female participants (n=26) received a single-dose of 0.5mg sublingual testosterone in a double-blind, placebo-controlled crossover design. At 240min post-administration, participants performed a gambling task with a high and a low risk option. In the placebo condition, participants were more likely to choose the high risk option following losses compared to wins. This effect was abolished on the testosterone session. Ignoring prior outcomes, no overall changes in risk-taking were observed. Our data indicate that testosterone affects human decision-making via diminishing sensitivity to punishment.
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Affiliation(s)
- Yin Wu
- Research Center for Brain Function and Psychological Science, Shenzhen University, Shenzhen, China; Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing, China
| | - Jinting Liu
- Research Center for Brain Function and Psychological Science, Shenzhen University, Shenzhen, China; Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing, China; China Center for Special Economic Zone Research, Shenzhen University, Shenzhen, China
| | - Lujing Qu
- Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing, China
| | - Christoph Eisenegger
- Neuropsychopharmacology and Biopsychology Unit, Department of Basic Psychological Research and Research Methods, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Luke Clark
- Centre for Gambling Research at UBC, Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Xiaolin Zhou
- Center for Brain and Cognitive Sciences and Department of Psychology, Peking University, Beijing, China; Key Laboratory of Machine Perception (Ministry of Education), Peking University, Beijing, China; Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing, China; IDG/McGovern Institute for Brain Research, Peking University, Beijing, China.
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Jollant F, Richard-Devantoy S, Ding Y, Turecki G, Bechara A, Near J. Prefrontal inositol levels and implicit decision-making in healthy individuals and depressed patients. Eur Neuropsychopharmacol 2016; 26:1255-63. [PMID: 27342631 DOI: 10.1016/j.euroneuro.2016.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/16/2016] [Accepted: 06/01/2016] [Indexed: 12/20/2022]
Abstract
Risky decision-making is found in several mental disorders and is associated with deleterious consequences. Current research aims at understanding the biological underpinnings of this complex cognitive function and the basis of individual variability. We used 3T proton Magnetic Resonance Spectroscopy to measure in vivo glutamate, GABA, N-acetyl-aspartate (NAA), and myo-inositol levels at rest in the right dorsal prefrontal cortex of 54 participants, comprising 24 unmedicated depressed patients and 30 healthy individuals. Participants were also tested with the Iowa Gambling Task (IGT), a classical measure of value-based decision-making. No group differences were found in terms of compound levels or decision-making performance. However, high inositol levels were associated with lower decision-making scores independently from group, notably during the initial stage of the task when explicit rules are still unknown and decisions are largely based on implicit processes (whole sample: F=4.0; p=0.02), with a large effect size (Cohen׳s d=0.8, 95% [0.2-1.5]). This effect was stronger when explicit knowledge was taken into account, with explicit knowledge showing an independent effect on performance. There was no association with other compounds. This study suggests, for the first time, a role for the inositol pathway on the implicit learning component of decision-making, without any direct effect on the explicit component. Hypothesized mechanisms implicate intracellular calcium modulation and subsequent synaptic plasticity. These findings represent a first step in the understanding of the biochemical mechanisms underlying decision-making and the identification of therapeutic targets. They also emphasize a dimensional approach in the study of the neurobiological determinants of mental disorders.
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Affiliation(s)
- Fabrice Jollant
- McGill University and Douglas Mental Health University Institute, Montreal, Québec, Canada; Department of Psychiatry, CHU Nîmes, France.
| | | | - Yang Ding
- McGill University and Douglas Mental Health University Institute, Montreal, Québec, Canada
| | - Gustavo Turecki
- McGill University and Douglas Mental Health University Institute, Montreal, Québec, Canada
| | | | - Jamie Near
- McGill University and Douglas Mental Health University Institute, Montreal, Québec, Canada
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Amr M, Elsayed H, Ibrahim IMA. Impulsive behavior and its correlates among patients with schizophrenia in a tertiary care psychiatry setting in Mansoura. Asian J Psychiatr 2016; 22:111-5. [PMID: 27520910 DOI: 10.1016/j.ajp.2016.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 06/07/2016] [Accepted: 06/19/2016] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Impulsive behavior has been repeatedly identified as a major problem in schizophrenia. Our objective was to examine the possible demographical and clinical correlates for impulsive behavior in patients with schizophrenia. METHODS Fifty-eight patients with schizophrenia and Seventy-seven healthy controls were recruited. Sociodemographic data were collected and they were subjected to the Barratt Impulsiveness Scale (BIS), Positive and Negative Syndrome scale (PANSS), and Trauma Assessment for Adults-Brief Revised Version (TAA). RESULTS Correlations between impulsive behavior and psychosocial variables were examined. A significant association between level of impulsive behavior and severity of psychopathological symptoms was observed (P=0.0001). Young age (P=0.001), male patients (P=0.0001) and those with history of childhood sexual or physical abuse (P=0.0001), were more impulsive. Linear regression (step wise) analysis model showed that male sex (P=0.001), positive symptoms (P=0.006), and childhood physical abuse (P=0.001) were significant associations. CONCLUSION Male gender, positive symptoms as well as history of physical and sexual abuse before 18 years of age are important predictors for high levels of impulsive behavior in schizophrenia patients.
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Affiliation(s)
- Mostafa Amr
- Psychiatry Department, MansouraFaculty of Medicine, Mansoura University, Mansoura, Egypt.
| | - Hanan Elsayed
- Psychiatry Department, MansouraFaculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ibtihal M A Ibrahim
- Psychiatry Department, MansouraFaculty of Medicine, Mansoura University, Mansoura, Egypt
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65
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Impulsivity in bipolar disorders in a Tunisian sample. Asian J Psychiatr 2016; 22:77-80. [PMID: 27520900 DOI: 10.1016/j.ajp.2016.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 04/14/2016] [Accepted: 05/14/2016] [Indexed: 12/29/2022]
Abstract
Impulsivity as a trait characteristic is increased in bipolar disorder and may be a core factor of the illness. The objectives of our work are to evaluate the level of impulsivity among patients with bipolar disorder and to study its relation with mood state, alcohol misuse, suicide attempts and other socio-demographic and clinical factors. We measured impulsivity in 60 subjects with bipolar disorder in relationship to socio-demographic and clinical variables. The subjects completed Data included socio-demographic details and clinical variables, the Barratt Impulsiveness Scale (BIS-11) in an Arabic version to assess impulsivity, The Mini International Neuropsychiatric Interview "MINI" version 05 to screen for alcohol abuse or dependence and mood graphic rate scale (MGRS) to evaluate mood state. Our results show that the mean score of BIS-11 was 71.5. Fifty-five per cent of the patients had a high level of impulsiveness. No differences were found relating to mood state. Impulsivity was related to Male gender, lower educational level, early age of onset, smoking, alcohol and drug misuse and prior suicide attempts. The treatment of patients with BD should consider to reduce impulsivity to improve morbidity.
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66
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Sex differences in inhibitory control in socially-housed baboons (Papio papio). Behav Brain Res 2016; 312:231-7. [PMID: 27321783 DOI: 10.1016/j.bbr.2016.06.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 06/14/2016] [Accepted: 06/15/2016] [Indexed: 01/16/2023]
Abstract
Inhibitory control is an important component of executive function. An emerging literature in humans suggests that inhibitory control is sexually dimorphic and modulated by sex steroids, but evidence for such a link in nonhuman animals is scarce. In this study, we examined the effects of menstrual cycle and biological sex on response inhibition, as measured by a Stop-Signal task, in the baboon (Papio papio). The monkeys (n=13) were socially-housed, with voluntary access to multiple touchscreen computerized stations. The task required monkeys to inhibit prepotent responses (touching a target, "Go" trials) following the appearance of a visual stop signal on 25% of the trials ("Stop" trials). The cognitive data, consisting of computerized records of the monkeys' performance on the Stop-Signal task over a year of testing, were matched to records of female sexual swellings. Same-day menstrual and cognitive data were available for 5 females, aged 5-18 years. These data were compared to those of 8 males (5-14 years old) performing the Stop-Signal task over the same time period. Contrary to our hypothesis, performance on the task was not significantly affected by the phase (ovulatory vs. luteal) of the cycle in females. However, males were slower than females on Go trials and were less efficient in inhibiting responses on Stop trials. Slower responses in males were indicative of a speed-accuracy trade-off, as overall accuracy was also better in males than in females. Analyses of trial history indicated that males did not speed as much as females following a successful Go trial, but did not differ from females in post-error slowing or post-inhibiting responses. Overall, the data show that biological sex modulates Stop-Signal performance in the baboon, with males exhibiting slower response execution overall, less efficient inhibition, but greater accuracy than females. This pattern of sex differences may reflect motivational sex differences in which males emphasize accuracy rather than speed. Interestingly, these sex differences do not seem to vary as a function of ovarian hormones in females. Males' greater focus on accuracy is possibly due to enhanced sensitivity to reward mediated by testosterone levels.
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Abstract
Testosterone and cortisol figure prominently in the research literature having to do with human competition. In this review, we track the history of this literature, concentrating particularly on major theoretical and empirical contributions, and provide commentary on what we see as important unresolved issues. In men and women, athletic competition is typically associated with an increase in testosterone (T) and cortisol (C). Hormone changes in response to non-athletic competition are less predictable. Person (e.g., power motivation, mood, aggressiveness, social anxiety, sex, and baseline levels of T and C) and context (e.g., whether a competition is won or lost, the closeness of the competition, whether the outcome is perceived as being influenced by ability vs. chance, provocations) factors can influence hormone responses to competition. From early on, studies pointed to a positive relationship between T and dominance motivation/status striving. Recent research, however, suggests that this relationship only holds for individuals with low levels of C - this is the core idea of the dual-hormone hypothesis, and it is certain that the broadest applications of the hypothesis have not yet been realized. Individuals differ with respect to the extent to which they embrace competition, but the hormonal correlates of competitiveness remain largely unexplored. Although rapid increases in both T and C associated with competition are likely adaptive, we still know very little about the psychological benefits of these hormonal changes. Administration studies have and will continue to contribute to this inquiry. We close with a discussion of what, we think, are important methodological and mechanistic issues for future research.
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Affiliation(s)
- Kathleen V Casto
- Department of Psychology, Emory University, Atlanta, GA 30322, United States
| | - David A Edwards
- Department of Psychology, Emory University, Atlanta, GA 30322, United States.
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Wirth MM, Gaffey AE, Martinez BS. Effects of intranasal oxytocin on steroid hormones in men and women. Neuropsychobiology 2016; 71:202-11. [PMID: 26044829 DOI: 10.1159/000381023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 02/16/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Recent interest in the social and cognitive effects of intranasal oxytocin prompts a need for understanding its physiological effects in humans. Few studies have examined the effects of intranasal oxytocin on steroid hormones. Filling this gap is especially important given the evidence that steroid hormones participate in some of the same behavioral functions as oxytocin, e.g. in stress, processing of emotional stimuli, aggression, trust, empathy, and parental care. METHODS In randomized, double-blind experiments, we administered oxytocin (24 IU) or saline placebo to 97 healthy participants. Saliva samples were collected before and at several time points after the oxytocin/placebo administration to assess the levels of cortisol, progesterone, and testosterone. RESULTS Oxytocin had no effects on testosterone, progesterone, or cortisol in women or men. CONCLUSION Acute intranasal oxytocin does not affect the levels of cortisol, testosterone or progesterone in humans, at least in the absence of a stressful context. These data suggest that acute oxytocin does not have a direct impact on the human hypothalamic-pituitary-adrenal or hypothalamic-pituitary-gonadal axes under nonstressful circumstances. This knowledge helps rule out potential mechanisms for some of the effects of oxytocin in humans and adds to the generally limited body of knowledge on the basic physiological or psychological effects of intranasal oxytocin in human beings.
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69
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Victor EC, Hariri AR. A neuroscience perspective on sexual risk behavior in adolescence and emerging adulthood. Dev Psychopathol 2016; 28:471-87. [PMID: 26611719 PMCID: PMC4828296 DOI: 10.1017/s0954579415001042] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Late adolescence and emerging adulthood (specifically ages 15-24) represent a period of heightened sexual risk taking resulting in the greatest annual rates of sexually transmitted infections and unplanned pregnancies in the US population. Ongoing efforts to prevent such negative consequences are likely to benefit from a deepening of our understanding of biological mechanisms through which sexual risk taking emerges and biases decision making during this critical window. Here we present a neuroscience framework from which a mechanistic examination of sexual risk taking can be advanced. Specifically, we adapt the neurodevelopmental triadic model, which outlines how motivated behavior is governed by three systems: approach, avoidance, and regulation, to sexual decision making and subsequent risk behavior. We further propose a testable hypothesis of the triadic model, wherein relatively decreased threat-related amygdala reactivity and increased reward-related ventral striatum reactivity leads to sexual risk taking, which is particularly exaggerated during adolescence and young adulthood when there is an overexpression of dopaminergic neurons coupled with immature top-down prefrontal cortex regulation. We conclude by discussing how future research based on our adapted triadic model can inform ongoing efforts to improve intervention and prevention efforts.
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Bloemers J, van Rooij K, de Leede L, Frijlink HW, Koppeschaar HPF, Olivier B, Tuiten A. Single dose sublingual testosterone and oral sildenafil vs. a dual route/dual release fixed dose combination tablet: a pharmacokinetic comparison. Br J Clin Pharmacol 2016; 81:1091-102. [PMID: 26804967 DOI: 10.1111/bcp.12887] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/14/2016] [Accepted: 01/21/2016] [Indexed: 01/04/2023] Open
Abstract
AIM The aim was to compare the pharmacokinetic profiles of two formulations of a combination drug product containing 0.5 mg testosterone and 50 mg sildenafil for female sexual interest/arousal disorder. The prototype (formulation 1) consists of a testosterone solution for sublingual administration and a sildenafil tablet that is administered 2.5 h later. The dual route/dual release fixed dose combination tablet (formulation 2) employs a sublingual and an oral route for systemic uptake. This tablet has an inner core of sildenafil with a polymeric time delay coating and an outer polymeric coating containing testosterone. It was designed to increase dosing practicality and decrease potential temporal non-adherence through circumventing the relatively complex temporal dosing scheme. METHODS Twelve healthy premenopausal subjects received both formulations randomly on separate days. Blood was sampled frequently to determine the pharmacokinetics of free testosterone, total testosterone, dihydrotestosterone, sildenafil and N-desmethyl-sildenafil. RESULTS Formulation 2 had a higher maximum concentration (Cmax ) for testosterone, 8.06 ng ml(-1) (95% confidence interval [CI] 6.84, 9.28) and higher area under the plasma concentration-time curve (AUC), 7.69 ng ml(-1) h (95% CI 6.22, 9.16) than formulation 1, 5.66 ng ml(-1) (95% CI 4.63, 6.69) and 5.12 ng ml(-1) h (95% CI 4.51, 5.73), respectively. Formulation 2 had a lower Cmax for sildenafil, 173 ng ml(-1) (95% CI 126, 220) and a lower AUC, 476 ng ml(-1) h (95% CI 401, 551) than formulation 1, 268 ng ml(-1) (95% CI 188, 348) and 577 ng ml(-1) h (95% CI 462, 692), respectively. Formulation 2 released sildenafil after 2.75 h (95% CI 2.40, 3.10). CONCLUSIONS The dual route/dual release fixed dose combination tablet fulfilled its design criteria and is considered suitable for further clinical testing. WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT Female sexual interest/arousal disorder (FSIAD) is a significant problem impacting psychological well-being, but the pharmacotherapeutic options for this problem are lacking. The combined, on-demand, sublingual administration of low dose sublingual testosterone and oral administration of sildenafil is a novel pharmacotherapeutic option under development for FSIAD. In proof-of-concept trials, these compounds were successfully administered via different dosage forms (sublingual and oral) at different time points (separated by 2.5 h) because of their markedly different pharmacokinetic-pharmacodynamic profiles. For future larger scale studies and the clinical practice, this raises obvious adherence issues. WHAT THIS STUDY ADDS A newly developed dual route/dual release fixed dose combination tablet containing testosterone and sildenafil mimics the pharmacokinetic profile of these components when they are administered as different dosage forms, 2.5 h apart. This combination tablet is a suitable final pharmaceutical drug product that will be used in future studies.
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Affiliation(s)
- Jos Bloemers
- Emotional Brain B.V., Almere.,Utrecht Institute for Pharmaceutical Sciences and Rudolf Magnus Institute of Neuroscience, Utrecht University, Utrecht
| | - Kim van Rooij
- Emotional Brain B.V., Almere.,Utrecht Institute for Pharmaceutical Sciences and Rudolf Magnus Institute of Neuroscience, Utrecht University, Utrecht
| | - Leo de Leede
- Exelion Bio-Pharmaceutical Consultancy B.V., Waddinxveen
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, The Netherlands
| | | | - Berend Olivier
- Utrecht Institute for Pharmaceutical Sciences and Rudolf Magnus Institute of Neuroscience, Utrecht University, Utrecht.,Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Adriaan Tuiten
- Emotional Brain B.V., Almere.,Department of Psychopharmacology, Utrecht University, Utrecht, The Netherlands
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71
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Reversal learning in gonadectomized marmosets with and without hormone replacement: are males more sensitive to punishment? Anim Cogn 2016; 19:619-30. [PMID: 26909674 DOI: 10.1007/s10071-016-0966-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/14/2016] [Accepted: 02/10/2016] [Indexed: 12/18/2022]
Abstract
This study examined sex differences in executive function in middle-aged gonadectomized marmosets (Callithrix jacchus) with or without hormonal replacement. We tested ten castrated male (mean age 5.5 years) marmosets treated with testosterone cypionate (T, n = 5) or vehicle (n = 5) on Reversal Learning, which contributes to cognitive flexibility, and the Delayed Response task, measuring working memory. Their performance was compared to that of 11 ovariectomized females (mean age = 3.7 years) treated with Silastic capsules filled with 17-β estradiol (E2, n = 6) or empty capsules (n = 5), previously tested on the same tasks (Lacreuse et al. in J Neuroendocrinol 26:296-309, 2014. doi: 10.1111/jne.12147). Behavioral observations were conducted daily. Females exhibited more locomotor behaviors than males. Males and females did not differ in the number of trials taken to reach criterion on the reversals, but males had significantly longer response latencies, regardless of hormone replacement. They also had a greater number of refusals than females. Additionally, both control and T-treated males, but not females, had slower responses on incorrect trials, suggesting that males were making errors due to distraction, lack of motivation or uncertainty. Furthermore, although both males and females had slower responding following an incorrect compared to a correct trial, the sex difference in response latencies was disproportionally large following an incorrect trial. No sex difference was found in the Delayed Response task. Overall, slower response latencies in males than females during Reversal Learning, especially during and following an incorrect trial, may reflect greater sensitivity to punishment (omission of reward) and greater performance monitoring in males, compared to females. Because these differences occurred in gonadectomized animals and regardless of hormone replacement, they may be organized early in life.
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van Honk J, Will GJ, Terburg D, Raub W, Eisenegger C, Buskens V. Effects of Testosterone Administration on Strategic Gambling in Poker Play. Sci Rep 2016; 6:18096. [PMID: 26727636 PMCID: PMC4698749 DOI: 10.1038/srep18096] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 11/10/2015] [Indexed: 11/29/2022] Open
Abstract
Testosterone has been associated with economically egoistic and materialistic behaviors, but -defensibly driven by reputable status seeking- also with economically fair, generous and cooperative behaviors. Problematically, social status and economic resources are inextricably intertwined in humans, thus testosterone's primal motives are concealed. We critically addressed this issue by performing a placebo-controlled single-dose testosterone administration in young women, who played a game of bluff poker wherein concerns for status and resources collide. The profit-maximizing strategy in this game is to mislead the other players by bluffing randomly (independent of strength of the hand), thus also when holding very poor cards (cold bluffing). The profit-maximizing strategy also dictates the players in this poker game to never call the other players' bluffs. For reputable-status seeking these materialistic strategies are disadvantageous; firstly, being caught cold bluffing damages one's reputation by revealing deceptive intent, and secondly, not calling the other players' bluffs signals submission in blindly tolerating deception. Here we show that testosterone administration in this game of bluff poker significantly reduces random bluffing, as well as cold bluffing, while significantly increasing calling. Our data suggest that testosterone in humans primarily motivates for reputable-status seeking, even when this elicits behaviors that are economically disadvantageous.
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Affiliation(s)
- Jack van Honk
- Department of Psychology, Utrecht UniversityThe Netherlands
- Institute of Infectious Disease and Molecular Medicine (IDM), University of Cape Town, South Africa
- Department of Psychiatry, University of Cape Town, South Africa
| | - Geert-Jan Will
- Department of Psychology, Leiden University, The Netherlands
| | - David Terburg
- Department of Psychology, Utrecht UniversityThe Netherlands
- Department of Psychiatry, University of Cape Town, South Africa
| | - Werner Raub
- Department of Sociology, Utrecht University, The Netherlands
| | - Christoph Eisenegger
- Department of Basic Psychological Research and Research Methods, University of Vienna, Austria
| | - Vincent Buskens
- Department of Sociology, Utrecht University, The Netherlands
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Enter D, Terburg D, Harrewijn A, Spinhoven P, Roelofs K. Single dose testosterone administration alleviates gaze avoidance in women with Social Anxiety Disorder. Psychoneuroendocrinology 2016; 63:26-33. [PMID: 26402923 DOI: 10.1016/j.psyneuen.2015.09.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/28/2015] [Accepted: 09/08/2015] [Indexed: 12/18/2022]
Abstract
Gaze avoidance is one of the most characteristic and persistent social features in people with Social Anxiety Disorder (SAD). It signals social submissiveness and hampers adequate social interactions. Patients with SAD typically show reduced testosterone levels, a hormone that facilitates socially dominant gaze behavior. Therefore we tested as a proof of principle whether single dose testosterone administration can reduce gaze avoidance in SAD. In a double-blind, within-subject design, 18 medication-free female participants with SAD and 19 female healthy control participants received a single dose of 0.5mg testosterone and a matched placebo, at two separate days. On each day, their spontaneous gaze behavior was recorded using eye-tracking, while they looked at angry, happy, and neutral facial expressions. Testosterone enhanced the percentage of first fixations to the eye-region in participants with SAD compared to healthy controls. In addition, SAD patients' initial gaze avoidance in the placebo condition was associated with more severe social anxiety symptoms and this relation was no longer present after testosterone administration. These findings indicate that single dose testosterone administration can alleviate gaze avoidance in SAD. They support theories on the dominance enhancing effects of testosterone and extend those by showing that effects are particularly strong in individuals featured by socially submissive behavior. The finding that this core characteristic of SAD can be directly influenced by single dose testosterone administration calls for future inquiry into the clinical utility of testosterone in the treatment of SAD.
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Affiliation(s)
- Dorien Enter
- Radboud University Nijmegen, Behavioural Science Institute (BSI), 6500 HE, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, 6525 EN, Nijmegen, The Netherlands; Leiden University, Institute of Psychology, 2300 RB, Leiden, The Netherlands.
| | - David Terburg
- Utrecht University, Department of Psychology, 3584 CS, Utrecht, The Netherlands; University of Cape Town, Department of Psychiatry & Mental Health, Cape Town 7925, South Africa
| | - Anita Harrewijn
- Leiden University, Institute of Psychology, 2300 RB, Leiden, The Netherlands; Leiden Institute for Brain and Cognition, 2300 RC, Leiden, The Netherlands
| | - Philip Spinhoven
- Leiden University, Institute of Psychology, 2300 RB, Leiden, The Netherlands; Leiden University Medical Center, Department of Psychiatry, 2300 RC, Leiden, The Netherlands
| | - Karin Roelofs
- Radboud University Nijmegen, Behavioural Science Institute (BSI), 6500 HE, Nijmegen, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, 6525 EN, Nijmegen, The Netherlands
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Harden KP, Mann FD. Biological Risk for the Development of Problem Behavior in Adolescence: Integrating Insights from Behavioral Genetics and Neuroscience. CHILD DEVELOPMENT PERSPECTIVES 2015; 9:211-216. [PMID: 26664416 PMCID: PMC4671633 DOI: 10.1111/cdep.12135] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Adolescence is a time of increasing engagement in a variety of problem behaviors, including substance use and delinquency. Genetic risk for problem behavior increases over adolescence, is mediated partially by individual differences in sensation seeking, and is exacerbated by involvement with deviant peers. In this article, we describe how findings from behavioral genetic research on problem behavior intersect with research from developmental neuroscience. In particular, the incentive-processing system, including the ventral striatum, responds increasingly to rewards in adolescence, particularly in peer contexts. This developmental shift may be influenced by hormonal changes at puberty. Individual differences in the structure and function of reward-responsive brain regions may be intermediary phenotypes that mediate adolescents' genetic risk for problem behavior. The study of problem behavior can be enriched by interdisciplinary research that integrates measures of brain structure and function into genetically informed studies.
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Portnoy J, Raine A, Glenn AL, Chen FR, Choy O, Granger DA. Digit ratio (2D:4D) moderates the relationship between cortisol reactivity and self-reported externalizing behavior in young adolescent males. Biol Psychol 2015; 112:94-106. [PMID: 26463360 DOI: 10.1016/j.biopsycho.2015.09.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 09/30/2015] [Accepted: 09/30/2015] [Indexed: 12/22/2022]
Abstract
Although reduced cortisol reactivity to stress and increased circulating testosterone level are hypothesized to be associated with higher levels of externalizing behavior, empirical findings are inconsistent. One factor that may account for the heterogeneity in these relationships is prenatal testosterone exposure. This study examined whether the second-to-fourth digit ratio (2D:4D), a putative marker of prenatal testosterone exposure, moderates the relationships of testosterone and cortisol reactivity with externalizing behavior. Left and right hand 2D:4D and self-reported externalizing behavior were measured in a sample of 353 young adolescents (M age=11.92 years; 178 females; 79.7% African American). Saliva samples were collected before and after a stress task and later assayed for cortisol. Testosterone levels were determined from an AM saliva sample. 2D:4D interacted with cortisol reactivity to predict externalizing behavior in males, but not females. In males, low cortisol reactivity was associated with higher levels of aggression and rule-breaking behavior, but only among subjects with low 2D:4D (i.e., high prenatal testosterone). Findings suggest the importance of a multi-systems approach in which interactions between multiple hormones are taken into account. Furthermore, results demonstrate the importance of considering the organizational influence of prenatal testosterone in order to understand the activational influence of circulating hormones during adolescence.
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Affiliation(s)
- Jill Portnoy
- University of Pennsylvania, Department of Criminology, 3809 Walnut St., Philadelphia, PA 19104, USA.
| | - Adrian Raine
- Departments of Criminology, Psychology, and Psychiatry, University of Pennsylvania, USA
| | - Andrea L Glenn
- Center for the Prevention of Youth Behavior Problems, Department of Psychology, University of Alabama, USA
| | - Frances R Chen
- Department of Criminology, University of Pennsylvania, USA
| | - Olivia Choy
- Department of Criminology, University of Pennsylvania, USA
| | - Douglas A Granger
- Institute for Interdisciplinary Salivary Bioscience Research, Arizona State University, Johns Hopkins University School of Nursing, Johns Hopkins University Bloomberg School of Public Health, USA
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Cooperative preferences fluctuate across the menstrual cycle. JUDGMENT AND DECISION MAKING 2015. [DOI: 10.1017/s1930297500005544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AbstractSocial Value Orientation (SVO) refers to an individual’s preference for the division of resources between the self and another person. Since evidence suggests that hormones influence several facets of human social behavior, we asked whether SVO might fluctuate across the female menstrual cycle. Using self-report data obtained in two independent online studies, we show that cooperative preferences, as indexed by SVO, are indeed significantly more prosocial in the early follicular compared to the midluteal phase in naturally ovulating women. Furthermore, when estimating hormonal variations from norm data, we found estradiol, but not progesterone or testosterone, to be a significant predictor of SVO across the menstrual cycle in both studies, with a negative correlation. Our findings provide evidence that the willingness to cooperate varies across the natural female menstrual cycle and highlight the potential of investigating psychological effects of ovarian sex hormones.
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Ruttle PL, Shirtcliff EA, Armstrong JM, Klein MH, Essex MJ. Neuroendocrine coupling across adolescence and the longitudinal influence of early life stress. Dev Psychobiol 2015; 57:688-704. [PMID: 23775330 PMCID: PMC6585402 DOI: 10.1002/dev.21138] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 04/26/2013] [Indexed: 11/10/2022]
Abstract
Drawing on conceptual models illustrating the advantages of a multisystemic, interactive, developmental approach to understanding development, the present study examines the covariation of stress and sex hormones across the adolescent transition and the effect of early life stress (ELS) on neuroendocrine coupling to gain insight into atypical development. Morning levels of cortisol, testosterone, and dehydroepiandrosterone (DHEA) were assessed at ages 11, 13, and 15; ELS was assessed during the infancy and preschool periods. Hierarchical linear modeling revealed that cortisol-DHEA coupling patterns progressed to tight, positive coupling across adolescence. Cortisol-testosterone coupling was positive at age 11 but became more negative at ages 13 and 15. Exposure to ELS resulted in more adultlike neuroendocrine coupling patterns earlier in life than non-exposed youth; however the effect of ELS on cortisol-testosterone coupling was unique to girls. Results illustrate trajectories of neuroendocrine coupling that may be unique to adolescence. Moderation by ELS suggests that early stress exposure may prompt earlier adultlike neuroendocrine coupling, particularly within girls, which may contribute to early pubertal development.
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Affiliation(s)
- Paula L Ruttle
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, 6001 Research Park Boulevard, Madison, WI, 53719-1176.
| | | | - Jeffrey M Armstrong
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, 6001 Research Park Boulevard, Madison, WI, 53719-1176
| | - Marjorie H Klein
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, 6001 Research Park Boulevard, Madison, WI, 53719-1176
| | - Marilyn J Essex
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, 6001 Research Park Boulevard, Madison, WI, 53719-1176
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78
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Interaction of adrenocortical activity and autonomic arousal on children's externalizing and internalizing behavior problems. JOURNAL OF ABNORMAL CHILD PSYCHOLOGY 2015; 43:189-202. [PMID: 24943055 DOI: 10.1007/s10802-014-9900-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The psychobiology of stress involves two major components, the hypothalamic-pituitary-adrenal (HPA) axis and the autonomic nervous system (ANS). Research has revealed the association between behavior problems and the psychobiology of stress, yet findings are inconsistent and few studies have addressed the moderate correlations between behavior problems. This study examines the individual and interactive effects of HPA and ANS on child behavior problems while taking into account the comorbidity of externalizing and internalizing problems. Four saliva samples were collected from each participant in a community sample (N = 429; aged 11-12 years; 50.49 % male), which were assayed for cortisol (HPA) and alpha-amylase, sAA (ANS). Children's behavior problems were assessed using parent-report and self-report versions of the Child Behavior Checklist. Latent variables were constructed to represent trait-like individual differences in cortisol and sAA. Low levels of HPA axis activity were associated with higher levels of both externalizing and internalizing problems, but only among children with low ANS arousal. The association between externalizing and internalizing problems diminished to non-significant after taking into account the influence of HPA axis activity and ANS arousal, which suggests that the psychobiology of stress explains a fair proportion of comorbidity of behavior problems. The findings support that interaction between HPA axis and ANS functioning has potential to clarify prior mixed findings and advance our understanding of the child behavior problems.
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79
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Evans KL, Hampson E. Sex-dependent effects on tasks assessing reinforcement learning and interference inhibition. Front Psychol 2015; 6:1044. [PMID: 26257691 PMCID: PMC4510310 DOI: 10.3389/fpsyg.2015.01044] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 07/09/2015] [Indexed: 11/13/2022] Open
Abstract
Increasing evidence suggests that the prefrontal cortex (PFC) is influenced by sex steroids and that some cognitive functions dependent on the PFC may be sexually differentiated in humans. Past work has identified a male advantage on certain complex reinforcement learning tasks, but it is unclear which latent task components are important to elicit the sex difference. The objective of the current study was to investigate whether there are sex differences on measures of response inhibition and valenced feedback processing, elements that are shared by previously studied reinforcement learning tasks. Healthy young adults (90 males, 86 females) matched in general intelligence completed the Probabilistic Selection Task (PST), a Simon task, and the Stop-Signal task. On the PST, females were more accurate than males in learning from positive (but not negative) feedback. On the Simon task, males were faster than females, especially in the face of incongruent stimuli. No sex difference was observed in Stop-Signal reaction time. The current findings provide preliminary support for a sex difference in the processing of valenced feedback and in interference inhibition.
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Affiliation(s)
- Kelly L. Evans
- Department of Psychology, University of Western Ontario, LondonON, Canada
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Hermans EJ, Henckens MJAG, Joëls M, Fernández G. Toward a mechanistic understanding of interindividual differences in cognitive changes after stress: reply to van den Bos. Trends Neurosci 2015; 38:403-4. [PMID: 26043880 DOI: 10.1016/j.tins.2015.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 05/05/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Erno J Hermans
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, 6525 EN, The Netherlands; Department for Cognitive Neuroscience, Radboud University Medical Centre, Nijmegen, 6525 EN, The Netherlands.
| | - Marloes J A G Henckens
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, 6525 EN, The Netherlands
| | - Marian Joëls
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Guillén Fernández
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, 6525 EN, The Netherlands; Department for Cognitive Neuroscience, Radboud University Medical Centre, Nijmegen, 6525 EN, The Netherlands
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81
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Mehta PH, Welker KM, Zilioli S, Carré JM. Testosterone and cortisol jointly modulate risk-taking. Psychoneuroendocrinology 2015; 56:88-99. [PMID: 25813123 DOI: 10.1016/j.psyneuen.2015.02.023] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 02/10/2015] [Accepted: 02/27/2015] [Indexed: 11/30/2022]
Abstract
Recent theories propose that testosterone should be positively related to risk-taking, but empirical support is mixed. Building on the dual-hormone hypothesis, the present research tested whether testosterone's role in risk-taking depends on cortisol. Study 1 (N=115) tested this hypothesis in a mixed-sex sample with self and informant reports of risk-taking. Study 2 (N=165) tested this hypothesis in a male-only sample with the Balloon Analog Risk Task, a behavioral measure of risk-taking. Across both studies, there was a positive association between basal testosterone and risk-taking among individuals low in basal cortisol but not individuals high in basal cortisol. This pattern emerged in both males and females and across multiple measures of risk-taking (self reports, informant reports, behavior). These studies provide novel empirical support for the claim that testosterone and cortisol jointly regulate risk-taking. Discussion focuses on putative mechanisms as well as implications for real-world risk-taking behaviors.
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Affiliation(s)
- Pranjal H Mehta
- University of Oregon, 1227 University of Oregon, Eugene, OR 97043, USA.
| | - Keith M Welker
- University of Colorado Boulder, Department of Psychology, 325 UCB, Boulder, CO 80309, USA
| | - Samuele Zilioli
- Wayne State University, 42 W Warren Avenue, Detroit, MI 48202, USA
| | - Justin M Carré
- Nipissing University, 100 College Drive, North Bay, ON P1B8L7, Canada
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82
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Maher AM, Thomson CJ, Carlson SR. Risk-taking and impulsive personality traits in proficient downhill sports enthusiasts. PERSONALITY AND INDIVIDUAL DIFFERENCES 2015. [DOI: 10.1016/j.paid.2015.01.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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83
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Pharmacokinetics of a prototype formulation of sublingual testosterone and a buspirone tablet, versus an advanced combination tablet of testosterone and buspirone in healthy premenopausal women. Drugs R D 2015; 14:125-32. [PMID: 24849043 PMCID: PMC4070462 DOI: 10.1007/s40268-014-0047-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The study aimed to compare the kinetics of two novel combination drug products for Female Sexual Interest/Arousal Disorder (FSIAD). Thirteen women received testosterone via the sublingual route followed 2.5 hours later by a buspirone tablet, versus a single combination tablet swallowed at once. The first clinical prototype consisted of a sublingual solution containing testosterone (0.5 mg) complexed with cyclodextrin and a tablet containing 10 mg buspirone, in a gelatin capsule to ensure blinding during the clinical studies. The innovative fixed-combination tablet consists of an inner-core component of 10 mg buspirone coated with a polymeric time-delay coating and an outer polymeric coating containing testosterone with hydroxypropyl-beta cyclodextrin. We observed an immediate testosterone pulse absorption from both formulations. We also demonstrated that there was adequate absorption of buspirone (>80 % relative to the conventional tablet) and a time delay in release of buspirone of 3.3 hours, close to the 3.0 hours of the reference formulation that showed clinical efficacy in early proof-of-principle studies. The newly developed combination tablet fulfils its design criteria and is a convenient tablet for further clinical studies in FSIAD.
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84
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85
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van der Westhuizen D, Solms M. Basic emotional foundations of social dominance in relation to Panksepp's affective taxonomy. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/15294145.2015.1021371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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86
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Wichary S, Pachur T, Li M. Risk-Taking Tendencies in Prisoners and Nonprisoners: Does Gender Matter? JOURNAL OF BEHAVIORAL DECISION MAKING 2015. [DOI: 10.1002/bdm.1866] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Szymon Wichary
- University of Social Sciences and Humanities; Warsaw Poland
| | | | - Mengduo Li
- University of Social Sciences and Humanities; Warsaw Poland
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87
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Testing the role of reward and punishment sensitivity in avoidance behavior: a computational modeling approach. Behav Brain Res 2015; 283:121-38. [PMID: 25639540 PMCID: PMC4351139 DOI: 10.1016/j.bbr.2015.01.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 01/12/2015] [Accepted: 01/20/2015] [Indexed: 01/27/2023]
Abstract
Exaggerated avoidance behavior is a predominant symptom in all anxiety disorders and its degree often parallels the development and persistence of these conditions. Both human and non-human animal studies suggest that individual differences as well as various contextual cues may impact avoidance behavior. Specifically, we have recently shown that female sex and inhibited temperament, two anxiety vulnerability factors, are associated with greater duration and rate of the avoidance behavior, as demonstrated on a computer-based task closely related to common rodent avoidance paradigms. We have also demonstrated that avoidance is attenuated by the administration of explicit visual signals during "non-threat" periods (i.e., safety signals). Here, we use a reinforcement-learning network model to investigate the underlying mechanisms of these empirical findings, with a special focus on distinct reward and punishment sensitivities. Model simulations suggest that sex and inhibited temperament are associated with specific aspects of these sensitivities. Specifically, differences in relative sensitivity to reward and punishment might underlie the longer avoidance duration demonstrated by females, whereas higher sensitivity to punishment might underlie the higher avoidance rate demonstrated by inhibited individuals. Simulations also suggest that safety signals attenuate avoidance behavior by strengthening the competing approach response. Lastly, several predictions generated by the model suggest that extinction-based cognitive-behavioral therapies might benefit from the use of safety signals, especially if given to individuals with high reward sensitivity and during longer safe periods. Overall, this study is the first to suggest cognitive mechanisms underlying the greater avoidance behavior observed in healthy individuals with different anxiety vulnerabilities.
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88
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89
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Welker KM, Gruber J, Mehta PH. A Positive Affective Neuroendocrinology Approach to Reward and Behavioral Dysregulation. Front Psychiatry 2015; 6:93. [PMID: 26191007 PMCID: PMC4489099 DOI: 10.3389/fpsyt.2015.00093] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 06/11/2015] [Indexed: 01/09/2023] Open
Abstract
Emerging lines of research suggest that both testosterone and maladaptive reward processing can modulate behavioral dysregulation. Yet, to date, no integrative account has been provided that systematically explains neuroendocrine function, dysregulation of reward, and behavioral dysregulation in a unified perspective. This is particularly important given specific neuroendocrine systems are potential mechanisms underlying and giving rise to reward-relevant behaviors. In this review, we propose a forward-thinking approach to study the mechanisms of reward and behavioral dysregulation from a positive affective neuroendocrinology (PANE) perspective. This approach holds that testosterone increases reward processing and motivation, which increase the likelihood of behavioral dysregulation. Additionally, the PANE framework holds that reward processing mediates the effects of testosterone on behavioral dysregulation. We also explore sources of potential sex differences and the roles of age, cortisol, and individual differences within the PANE framework. Finally, we discuss future prospects for research questions and methodology in the emerging field of affective neuroendocrinology.
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Affiliation(s)
- Keith M Welker
- Department of Psychology and Neuroscience, University of Colorado Boulder , Boulder, CO , USA
| | - June Gruber
- Department of Psychology and Neuroscience, University of Colorado Boulder , Boulder, CO , USA
| | - Pranjal H Mehta
- Department of Psychology, University of Oregon , Eugene, OR , USA
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90
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Laricchiuta D, Petrosini L. Individual differences in response to positive and negative stimuli: endocannabinoid-based insight on approach and avoidance behaviors. Front Syst Neurosci 2014; 8:238. [PMID: 25565991 PMCID: PMC4273613 DOI: 10.3389/fnsys.2014.00238] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 11/28/2014] [Indexed: 01/12/2023] Open
Abstract
Approach and avoidance behaviors-the primary responses to the environmental stimuli of danger, novelty and reward-are associated with the brain structures that mediate cognitive functionality, reward sensitivity and emotional expression. Individual differences in approach and avoidance behaviors are modulated by the functioning of amygdaloid-hypothalamic-striatal and striatal-cerebellar networks implicated in action and reaction to salient stimuli. The nodes of these networks are strongly interconnected and by acting on them the endocannabinoid and dopaminergic systems increase the intensity of appetitive or defensive motivation. This review analyzes the approach and avoidance behaviors in humans and rodents, addresses neurobiological and neurochemical aspects of these behaviors, and proposes a possible synaptic plasticity mechanism, related to endocannabinoid-dependent long-term potentiation (LTP) and depression that allows responding to salient positive and negative stimuli.
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Affiliation(s)
- Daniela Laricchiuta
- IRCCS Fondazione Santa LuciaRome, Italy
- Department of Dynamic and Clinical Psychology, Faculty of Medicine and Psychology, University “Sapienza” of RomeRome, Italy
| | - Laura Petrosini
- IRCCS Fondazione Santa LuciaRome, Italy
- Department of Psychology, Faculty of Medicine and Psychology, University “Sapienza” of RomeRome, Italy
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91
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Wise RJ, Phung AL, Labuschagne I, Stout JC. Differential effects of social stress on laboratory-based decision-making are related to both impulsive personality traits and gender. Cogn Emot 2014; 29:1475-85. [PMID: 25506765 DOI: 10.1080/02699931.2014.989815] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Urgency is the tendency to make impulsive decisions under extreme positive or negative emotional states. Stress, gender and impulsive personality traits are all known to influence decision-making, but no studies have examined the interplay of all of these factors. We exposed 78 men and women to a stress or a non-stress condition, and then administered the Balloon Analogue Risk Task. We found that stress effects varied as a function of gender and urgency traits. Under stress, women low in negative urgency and men high in negative urgency made fewer risky decisions. Positive urgency yielded a similar pattern. Thus, decisions under stress depend on a complex interplay between gender and impulsive personality traits. These findings have implications for clinical disorders, such as substance use disorders, in which there are known deficits in decision-making and high levels of impulsive traits.
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Affiliation(s)
- Richard J Wise
- a School of Psychological Sciences , Monash University , Melbourne , VIC , Australia
| | - Alissa L Phung
- a School of Psychological Sciences , Monash University , Melbourne , VIC , Australia
| | - Izelle Labuschagne
- a School of Psychological Sciences , Monash University , Melbourne , VIC , Australia
| | - Julie C Stout
- a School of Psychological Sciences , Monash University , Melbourne , VIC , Australia
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92
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Social neuroendocrinology of human aggression: examining the role of competition-induced testosterone dynamics. Neuroscience 2014; 286:171-86. [PMID: 25463514 DOI: 10.1016/j.neuroscience.2014.11.029] [Citation(s) in RCA: 194] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 10/18/2014] [Accepted: 11/17/2014] [Indexed: 11/22/2022]
Abstract
A large body of evidence indicates that individual differences in baseline concentrations of testosterone (T) are only weakly correlated with human aggression. Importantly, T concentrations are not static, but rather fluctuate rapidly in the context of competitive interactions, suggesting that acute fluctuations in T may be more relevant for our understanding of the neuroendocrine mechanisms underlying variability in human aggression. In this paper, we provide an overview of the literature on T and human competition, with a primary focus on the role of competition-induced T dynamics in the modulation of human aggression. In addition, we discuss potential neural mechanisms underlying the effect of T dynamics on human aggression. Finally, we highlight several challenges for the field of social neuroendocrinology and discuss areas of research that may enhance our understanding of the complex bi-directional relationship between T and human social behavior.
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93
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van Rooij K, Poels S, Worst P, Bloemers J, Koppeschaar H, Goldstein A, Olivier B, Tuiten A. Efficacy of testosterone combined with a PDE5 inhibitor and testosterone combined with a serotonin (1A) receptor agonist in women with SSRI-induced sexual dysfunction. A preliminary study. Eur J Pharmacol 2014; 753:246-51. [PMID: 25460030 DOI: 10.1016/j.ejphar.2014.10.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 10/16/2014] [Indexed: 11/15/2022]
Abstract
Selective serotonin reuptake inhibitors (SSRIs) are known to cause sexual dysfunction, such as decreased sexual motivation, desire, arousal, and orgasm difficulties. These SSRI-induced sexual complaints have a high prevalence rate, while there is no approved pharmacological treatment for SSRI-induced sexual dysfunction. It is hypothesized that a polymorphisms in the androgen receptor gene, encoded by the nucleotides cysteine, adenine, and guanine (CAG), influence the effect of testosterone on sexual functioning. In an explorative, randomized, double-blind, placebo-controlled, crossover study we investigated the possible effects of sublingual testosterone combined with a serotonin (5-HT)1A receptor agonist, and of sublingual testosterone combined with a phosphodiesterase type 5 inhibitor (PDE5-i) on sexual functioning in women with SSRI-induced sexual dysfunction. Furthermore, we did an exploratory analysis to assess if the CAG polymorphism influences this effect. 21 pre- and postmenopausal women with SSRI-induced sexual dysfunction participated and underwent the following interventions: a combination of testosterone (0.5 mg) sublingually and the PDE5-i sildenafil (50 mg) and a combination of testosterone (0.5 mg) sublingually and the 5-HT1A receptor agonist buspirone (10 mg). The results show that women who use a low dose of SSRI and have relatively long CAG repeats report a marked improvement in sexual function in response to both treatments compared to placebo. This explorative study and preliminary results indicate that in women with SSRI-induced sexual dysfunction, a combination of testosterone sublingually and a PDE5-i or testosterone sublingually and a 5-HT1A receptor agonist might be promising treatments for certain subgroups of women with this condition.
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Affiliation(s)
- Kim van Rooij
- Emotional Brain B.V., Almere, The Netherlands; Utrecht Institute for Pharmaceutical Sciences and Rudlof Magnus Institute of Neuroscience, Utrecht University, Utrecht, The Netherlands.
| | - Saskia Poels
- Emotional Brain B.V., Almere, The Netherlands; Utrecht Institute for Pharmaceutical Sciences and Rudlof Magnus Institute of Neuroscience, Utrecht University, Utrecht, The Netherlands
| | - Petra Worst
- Emotional Brain B.V., Almere, The Netherlands
| | - Jos Bloemers
- Emotional Brain B.V., Almere, The Netherlands; Utrecht Institute for Pharmaceutical Sciences and Rudlof Magnus Institute of Neuroscience, Utrecht University, Utrecht, The Netherlands
| | | | | | - Berend Olivier
- Utrecht Institute for Pharmaceutical Sciences and Rudlof Magnus Institute of Neuroscience, Utrecht University, Utrecht, The Netherlands; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Adriaan Tuiten
- Emotional Brain B.V., Almere, The Netherlands; Department of Psychopharmacology, Utrecht University, Utrecht, The Netherlands
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94
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Cornet LJM, de Kogel CH, Nijman HLI, Raine A, van der Laan PH. Neurobiological factors as predictors of cognitive-behavioral therapy outcome in individuals with antisocial behavior: a review of the literature. INTERNATIONAL JOURNAL OF OFFENDER THERAPY AND COMPARATIVE CRIMINOLOGY 2014; 58:1279-1296. [PMID: 23839226 DOI: 10.1177/0306624x13494694] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This review focuses on the predictive value of neurobiological factors in relation to cognitive-behavioral therapy outcome among individuals with antisocial behavior. Ten relevant studies were found. Although the literature on this topic is scarce and diverse, it appears that specific neurobiological characteristics, such as physiological arousal levels, can predict treatment outcome. The predictive value of neurobiological factors is important as it could give more insight into the causes of variability in treatment outcome among individuals with antisocial behavior. Furthermore, results can contribute to improvement in current treatment selection procedures and to the development of alternative treatment options.
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Affiliation(s)
- Liza J M Cornet
- The Netherlands Institute for the Study of Crime and Law Enforcement (NSCR), Amsterdam, The Netherlands Research and Documentation Centre (WODC), Ministry of Security and Justice, Den Haag, The Netherlands
| | - Catharina H de Kogel
- Research and Documentation Centre (WODC), Ministry of Security and Justice, Den Haag, The Netherlands
| | - Henk L I Nijman
- Altrecht, Den Dolder, The Netherlands Radboud University, Nijmegen, The Netherlands
| | - Adrian Raine
- Departments of Criminology, Psychiatry, and Psychology, University of Pennsylvania, Philadelphia, USA
| | - Peter H van der Laan
- The Netherlands Institute for the Study of Crime and Law Enforcement (NSCR), Amsterdam, The Netherlands Faculty of Law, VU University, Amsterdam, The Netherlands
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95
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Fattore L, Melis M, Fadda P, Fratta W. Sex differences in addictive disorders. Front Neuroendocrinol 2014; 35:272-84. [PMID: 24769267 DOI: 10.1016/j.yfrne.2014.04.003] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 04/04/2014] [Accepted: 04/04/2014] [Indexed: 12/16/2022]
Abstract
Gender-dependent differences in the rate of initiation and frequency of misuse of addicting drugs have been widely described. Yet, men and women also differ in their propensity to become addicted to other rewarding stimuli (e.g., sex, food) or activities (e.g., gambling, exercising). The goal of the present review is to summarize current evidence for gender differences not only in drug addiction, but also in other forms of addictive behaviours. Thus, we first reviewed studies showing gender-dependent differences in drug addiction, food addiction, compulsive sexual activity, pathological gambling, Internet addiction and physical exercise addiction. Potential risk factors and underlying brain mechanisms are also examined, with particular emphasis given to the role of sex hormones in modulating addictive behaviours. Investigations on factors allowing the pursuit of non-drug rewards to become pathological in men and women are crucial for designing gender-appropriate treatments of both substance and non-substance addictions.
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Affiliation(s)
- Liana Fattore
- Institute of Neuroscience - Cagliari National Research Council of Italy, Cittadella Universitaria di Monserrato, Italy; Centre of Excellence "Neurobiology of Dependence", University of Cagliari, Monserrato, Italy.
| | - Miriam Melis
- Centre of Excellence "Neurobiology of Dependence", University of Cagliari, Monserrato, Italy; Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, Cittadella Universitaria di Monserrato, University of Cagliari, Monserrato, Italy
| | - Paola Fadda
- Centre of Excellence "Neurobiology of Dependence", University of Cagliari, Monserrato, Italy; Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, Cittadella Universitaria di Monserrato, University of Cagliari, Monserrato, Italy; National Institute of Neuroscience (INN), University of Cagliari, Italy
| | - Walter Fratta
- Centre of Excellence "Neurobiology of Dependence", University of Cagliari, Monserrato, Italy; Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, Cittadella Universitaria di Monserrato, University of Cagliari, Monserrato, Italy; National Institute of Neuroscience (INN), University of Cagliari, Italy
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96
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Oliveira GA, Oliveira RF. Androgen modulation of social decision-making mechanisms in the brain: an integrative and embodied perspective. Front Neurosci 2014; 8:209. [PMID: 25100938 PMCID: PMC4105629 DOI: 10.3389/fnins.2014.00209] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 07/01/2014] [Indexed: 12/17/2022] Open
Abstract
Apart from their role in reproduction androgens also respond to social challenges and this response has been seen as a way to regulate the expression of behavior according to the perceived social environment (Challenge hypothesis, Wingfield et al., 1990). This hypothesis implies that social decision-making mechanisms localized in the central nervous system (CNS) are open to the influence of peripheral hormones that ultimately are under the control of the CNS through the hypothalamic-pituitary-gonadal axis. Therefore, two puzzling questions emerge at two different levels of biological analysis: (1) Why does the brain, which perceives the social environment and regulates androgen production in the gonad, need feedback information from the gonad to adjust its social decision-making processes? (2) How does the brain regulate gonadal androgen responses to social challenges and how do these feedback into the brain? In this paper, we will address these two questions using the integrative approach proposed by Niko Tinbergen, who proposed that a full understanding of behavior requires its analysis at both proximate (physiology, ontogeny) and ultimate (ecology, evolution) levels.
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Affiliation(s)
- Gonçalo A. Oliveira
- Unidade de Investigação em Eco-Etologia, ISPA – Instituto UniversitárioLisboa, Portugal
| | - Rui F. Oliveira
- Unidade de Investigação em Eco-Etologia, ISPA – Instituto UniversitárioLisboa, Portugal
- Integrative Behavioural Biology Lab, Instituto Gulbenkian de CiênciaOeiras, Portugal
- Champalimaud Neuroscience Program, Champalimaud Center for the UnknownLisboa, Portugal
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97
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Poels S, Bloemers J, van Rooij K, Koppeschaar H, Olivier B, Tuiten A. Two novel combined drug treatments for women with hypoactive sexual desire disorder. Pharmacol Biochem Behav 2014; 121:71-9. [DOI: 10.1016/j.pbb.2014.02.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 02/03/2014] [Accepted: 02/05/2014] [Indexed: 01/23/2023]
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98
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Does risk-taking mediate the relationship between testosterone and decision-making on the Iowa Gambling Task? PERSONALITY AND INDIVIDUAL DIFFERENCES 2014. [DOI: 10.1016/j.paid.2014.01.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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99
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Peper JS, Koolschijn PCMP, Crone EA. Development of Risk Taking: Contributions from Adolescent Testosterone and the Orbito-frontal Cortex. J Cogn Neurosci 2013; 25:2141-50. [DOI: 10.1162/jocn_a_00445] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Abstract
The role of puberty in the development of risk taking remains poorly understood. Here, in a normative sample of 268 participants between 8 and 25 years old, we applied a psycho-endocrine neuroimaging approach to investigate the contribution of testosterone levels and OFC morphology to individual differences in risk taking. Risk taking was measured with the balloon analogue risk-taking task. We found that, corrected for age, higher endogenous testosterone level was related to increased risk taking in boys (more explosions) and girls (more money earned). In addition, a smaller medial OFC volume in boys and larger OFC surface area in girls related to more risk taking. A mediation analysis indicated that OFC morphology partly mediates the association between testosterone level and risk taking, independent of age. Mediation was found in such a way that a smaller medial OFC in boys potentiates the association between testosterone and risk taking but suppresses the association in girls. This study provides insights into endocrinological and neural underpinnings of normative development of risk taking, by indicating that OFC morphology, at least partly, mediates the association between testosterone and risk-taking behavior.
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Affiliation(s)
- Jiska S. Peper
- 1Leiden University, The Netherlands
- 2Leiden Institute for Brain and Cognition, The Netherlands
| | - P. Cédric M. P. Koolschijn
- 1Leiden University, The Netherlands
- 2Leiden Institute for Brain and Cognition, The Netherlands
- 3University of Amsterdam
| | - Eveline A. Crone
- 1Leiden University, The Netherlands
- 2Leiden Institute for Brain and Cognition, The Netherlands
- 3University of Amsterdam
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100
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Abstract
Disruptive Behaviors Disorders (DBD), including Oppositional-Defiant Disorder (ODD) and Attention-Deficit/Hyperactivity Disorder (ADHD), are fairly common and highly impairing childhood behavior disorders that can be diagnosed as early as preschool. Prenatal exposure to testosterone may be particularly relevant to these early-emerging DBDs that exhibit a sex-biased prevalence rate favoring males. The current study examined associations between preschool DBD symptom domains and prenatal exposure to testosterone measured indirectly via right 2D:4D finger-length ratios. The study sample consisted of 109 preschool-age children between ages 3 and 6 (64% males;72% with DBD) and their primary caregivers. Primary caregivers completed a semi-structured interview (i.e., Kiddie Disruptive Behavior Disorder Schedule), as well as symptom questionnaires (i.e., Disruptive Behavior Rating Scale, Peer Conflict Scale); teachers and/or daycare providers completed symptom questionnaires and children provided measures of prenatal testosterone exposure, measured indirectly via finger-length ratios (i.e., right 2D:4D). Study results indicated a significant association of high prenatal testosterone (i.e., smaller right 2D:4D) with high hyperactive-impulsive ADHD symptoms in girls but not boys, suggesting that the effect may be driven by, or might only exist in, girls. The present study suggests that prenatal exposure to testosterone may increase risk for early ADHD, particularly hyperactivity-impulsivity, in preschool girls.
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