1
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Mayeli M, Shafie M, Shiravi M, Adl Parvar T, Mirsepassi Z, Rahiminejad F, Sattarpour R, Aghamollaii V. Depression is associated with the nonmotor symptoms of Parkinson's disease: A comparative analysis. Health Sci Rep 2024; 7:e2106. [PMID: 38803654 PMCID: PMC11128496 DOI: 10.1002/hsr2.2106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/01/2023] [Accepted: 04/21/2024] [Indexed: 05/29/2024] Open
Abstract
Background and aims The nonmotor symptoms (NMS) of Parkinson's disease (PD) and their potential role in early diagnosis are recent debates. Herein, we aimed to investigate the association between depression and NMS of PD including sleep disorders, hyposexuality, hyposmia, constipation, and orthostatic hypotension. Methods A total of 93 PD patients with depression and 67 PD patients without depression were included in the study, and NMS were compared between the two groups. Furthermore, the possible associations between depression severity measured by Beck Depression Inventory (BDI) and NMS were investigated using linear regression or binary logistic regression models controlled for possible confounders. Eventually, we performed a subgroup analysis in each mild, moderate, and severe depression group. Results Orthostatic hypotension, constipation, and hyposexuality showed a significant difference between PD patients with and without depression (p < 0.001, p = 0.029, and p < 0.001, respectively). The BDI score was significantly associated with hyposexuality, Montreal cognitive assessment (MoCA), and Pittsburgh Sleep Quality (p = 0.016, p = 0.010, and p = 0.011, respectively); however, after adjustments for possible confounders, the associations of the BDI score with the MoCA score and hyposexuality remained significant (p = 0.015 and p = 0.019, respectively). Considering subgroup analysis, a similar pattern of significant results was observed particularly in the severe group. Conclusions This study suggests a possible association between depression in PD patients and some NMS observed in the course of PD. These findings could be beneficial for early diagnosis of the disease, which eventually could make a considerable difference in the management of PD patients. Additional interventional longitudinal studies are warranted to explore how controlling depression could impact the NMS of patients with PD.
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Affiliation(s)
- Mahsa Mayeli
- School of MedicineTehran University of Medical SciencesTehranIran
| | - Mahan Shafie
- School of MedicineTehran University of Medical SciencesTehranIran
| | - Maryam Shiravi
- School of MedicineTehran University of Medical SciencesTehranIran
| | - Tanin Adl Parvar
- School of MedicineTehran University of Medical SciencesTehranIran
| | - Zahra Mirsepassi
- Department of Psychiatry, School of Medicine, Roozbeh HospitalTehran University of Medical SciencesTehranIran
| | - Fatemeh Rahiminejad
- Psychiatry Department, Cognitive Neurology and Neuropsychiatry DivisionTehran University of Medical SciencesTehranIran
| | - Reza Sattarpour
- School of MedicineTehran University of Medical SciencesTehranIran
| | - Vajiheh Aghamollaii
- Psychiatry Department, Cognitive Neurology and Neuropsychiatry DivisionTehran University of Medical SciencesTehranIran
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2
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Rocha GS, Freire MAM, Paiva KM, Oliveira RF, Morais PLAG, Santos JR, Cavalcanti JRLP. The neurobiological effects of senescence on dopaminergic system: A comprehensive review. J Chem Neuroanat 2024; 137:102415. [PMID: 38521203 DOI: 10.1016/j.jchemneu.2024.102415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/26/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
Over time, the body undergoes a natural, multifactorial, and ongoing process named senescence, which induces changes at the molecular, cellular, and micro-anatomical levels in many body systems. The brain, being a highly complex organ, is particularly affected by this process, potentially impairing its numerous functions. The brain relies on chemical messengers known as neurotransmitters to function properly, with dopamine being one of the most crucial. This catecholamine is responsible for a broad range of critical roles in the central nervous system, including movement, learning, cognition, motivation, emotion, reward, hormonal release, memory consolidation, visual performance, sexual drive, modulation of circadian rhythms, and brain development. In the present review, we thoroughly examine the impact of senescence on the dopaminergic system, with a primary focus on the classic delimitations of the dopaminergic nuclei from A8 to A17. We provide in-depth information about their anatomy and function, particularly addressing how senescence affects each of these nuclei.
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Affiliation(s)
- Gabriel S Rocha
- Behavioral and Evolutionary Neurobiology Laboratory, Federal University of Sergipe (UFS), Itabaiana, Brazil
| | - Marco Aurelio M Freire
- Behavioral and Evolutionary Neurobiology Laboratory, Federal University of Sergipe (UFS), Itabaiana, Brazil
| | - Karina M Paiva
- Laboratory of Experimental Neurology, State University of Rio Grande do Norte (UERN), Mossoró, Brazil
| | - Rodrigo F Oliveira
- Laboratory of Experimental Neurology, State University of Rio Grande do Norte (UERN), Mossoró, Brazil
| | - Paulo Leonardo A G Morais
- Laboratory of Experimental Neurology, State University of Rio Grande do Norte (UERN), Mossoró, Brazil
| | - José Ronaldo Santos
- Behavioral and Evolutionary Neurobiology Laboratory, Federal University of Sergipe (UFS), Itabaiana, Brazil
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3
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Massaccesi C, Korb S, Götzendorfer S, Chiappini E, Willeit M, Lundström JN, Windischberger C, Eisenegger C, Silani G. Effects of dopamine and opioid receptor antagonism on the neural processing of social and nonsocial rewards. Hum Brain Mapp 2024; 45:e26645. [PMID: 38445523 PMCID: PMC10915723 DOI: 10.1002/hbm.26645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 02/01/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024] Open
Abstract
Rewards are a broad category of stimuli inducing approach behavior to aid survival. Extensive evidence from animal research has shown that wanting (the motivation to pursue a reward) and liking (the pleasure associated with its consumption) are mostly regulated by dopaminergic and opioidergic activity in dedicated brain areas. However, less is known about the neuroanatomy of dopaminergic and opioidergic regulation of reward processing in humans, especially when considering different types of rewards (i.e., social and nonsocial). To fill this gap of knowledge, we combined dopaminergic and opioidergic antagonism (via amisulpride and naltrexone administration) with functional neuroimaging to investigate the neurochemical and neuroanatomical bases of wanting and liking of matched nonsocial (food) and social (interpersonal touch) rewards, using a randomized, between-subject, placebo-controlled, double-blind design. While no drug effect was observed at the behavioral level, brain activity was modulated by the administered compounds. In particular, opioid antagonism, compared to placebo, reduced activity in the medial orbitofrontal cortex during consumption of the most valued social and nonsocial rewards. Dopamine antagonism, however, had no clear effects on brain activity in response to reward anticipation. These findings provide insights into the neurobiology of human reward processing and suggest a similar opioidergic regulation of the neural responses to social and nonsocial reward consumption.
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Affiliation(s)
- Claudia Massaccesi
- Department of Clinical and Health PsychologyUniversity of ViennaViennaAustria
- Department of Cognition, Emotion and Methods in PsychologyUniversity of ViennaViennaAustria
| | - Sebastian Korb
- Department of Cognition, Emotion and Methods in PsychologyUniversity of ViennaViennaAustria
- Department of PsychologyUniversity of EssexColchesterUK
| | | | - Emilio Chiappini
- Department of Clinical and Health PsychologyUniversity of ViennaViennaAustria
| | - Matthaeus Willeit
- Department of Psychiatry and PsychotherapyMedical University of ViennaViennaAustria
| | | | - Christian Windischberger
- MR Center of Excellence, Center for Medical Physics and Biomedical EngineeringMedical University of ViennaViennaAustria
| | - Christoph Eisenegger
- Department of Cognition, Emotion and Methods in PsychologyUniversity of ViennaViennaAustria
| | - Giorgia Silani
- Department of Clinical and Health PsychologyUniversity of ViennaViennaAustria
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4
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T. Zaatar M, Alhakim K, Enayeh M, Tamer R. The transformative power of music: Insights into neuroplasticity, health, and disease. Brain Behav Immun Health 2024; 35:100716. [PMID: 38178844 PMCID: PMC10765015 DOI: 10.1016/j.bbih.2023.100716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 01/06/2024] Open
Abstract
Music is a universal language that can elicit profound emotional and cognitive responses. In this literature review, we explore the intricate relationship between music and the brain, from how it is decoded by the nervous system to its therapeutic potential in various disorders. Music engages a diverse network of brain regions and circuits, including sensory-motor processing, cognitive, memory, and emotional components. Music-induced brain network oscillations occur in specific frequency bands, and listening to one's preferred music can grant easier access to these brain functions. Moreover, music training can bring about structural and functional changes in the brain, and studies have shown its positive effects on social bonding, cognitive abilities, and language processing. We also discuss how music therapy can be used to retrain impaired brain circuits in different disorders. Understanding how music affects the brain can open up new avenues for music-based interventions in healthcare, education, and wellbeing.
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Affiliation(s)
- Muriel T. Zaatar
- Department of Biological and Physical Sciences, American University in Dubai, Dubai, United Arab Emirates
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5
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Perrotta G. The Concept of "Hypersexuality" in the Boundary between Physiological and Pathological Sexuality. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20105844. [PMID: 37239570 DOI: 10.3390/ijerph20105844] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 05/08/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
INTRODUCTION The concept of hypersexuality belongs to modern parlance, according to a predominantly clinical meaning, and is understood as a psychological and behavioural alteration as a result of which sexually motivated stimuli are sought in inappropriate ways and often experienced in a way that is not completely satisfactory. METHODS Literature up to February 2023 was reviewed, with 25 searches selected. RESULTS Forty-two articles were included in the review. CONCLUSION Hypersexuality is a potentially clinically relevant condition consisting of one or more dysfunctional and pathological behaviours of one's sexual sphere and graded according to the severity of impairment of subjective acting out; for this reason, the Perrotta Hypersexuality Global Spectrum of Gradation (PH-GSS) is suggested, which distinguishes high-functioning forms (pro-active and dynamic hypersexuality) from those of attenuated and corrupted functioning (dysfunctional and pathological hypersexuality of grades I and II). Future research is hoped to address the practical needs of this condition, such as the exact etiopathology, the role of oxytocin in dopaminergic hypotheses (and its ability to attenuate the symptomatology suffered by the patient in terms of manic drive), the best structural and functional personality framing of the subject, and the appropriate therapy to pursue.
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Affiliation(s)
- Giulio Perrotta
- Istituto per lo Studio delle Psicoterapie-ISP, Via San Martino Della Battaglia n. 31, 00185 Rome, Italy
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6
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Wiemer J, Kurstak S, Sellmann F, Lindner K. Sexual Stimuli Cause Behavioral Disinhibition in Both Men and Women, but Even More So in Men. ARCHIVES OF SEXUAL BEHAVIOR 2023; 52:1445-1460. [PMID: 36694045 PMCID: PMC10125947 DOI: 10.1007/s10508-022-02514-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/01/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
In our society men are considered more impulsive than women, especially in the violent and sexual domain. This correlation of sex and impulsivity might trace back to enhanced male impulsivity in general or a domain specific effect of emotions on impulsivity. The evidence for sex differences in the interaction of emotional or sexual stimuli and impulsivity has been relatively inconclusive so far. In this study, we investigated the effects of various emotional stimuli on responsivity in a Go/No-Go task. Participants had to respond quickly to a visual cue and withhold their response to another visual cue, while different emotional pictures were presented in the background, including sexual stimuli, non-sexual positive stimuli and negative stimuli. Both men (N = 37) and women (N = 38) made most commission errors in the sexual condition, indicating a disinhibiting effect in both genders. On top of this, men made even more commission errors than women, specifically in the sexual condition and not in other conditions. Men rated sexual stimuli as more positive, but did not differ from women in arousal ratings and pupil dilation. These findings may partly indicate increased impulsive behavior under sexual arousal in men, most likely driven by enhanced approach motivation due to more positive value but not higher arousal of sexual stimuli. The results are consistent with the theory of evolutionarily based concealment of sexual interest in women.
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Affiliation(s)
- Julian Wiemer
- Department of Psychology, Institute of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany.
- Psychotherapy Center for Sexual and Violent Offenders Würzburg, Würzburg, Germany.
| | - Steffen Kurstak
- Department of Psychology, Institute of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
| | - Florian Sellmann
- Department of Psychology, Institute of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
| | - Kerstin Lindner
- Department of Psychology, Institute of Psychology (Biological Psychology, Clinical Psychology, and Psychotherapy), University of Würzburg, Marcusstr. 9-11, 97070, Würzburg, Germany
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7
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Watanuki S. Neural mechanisms of brand love relationship dynamics: Is the development of brand love relationships the same as that of interpersonal romantic love relationships? Front Neurosci 2022; 16:984647. [PMID: 36440289 PMCID: PMC9686448 DOI: 10.3389/fnins.2022.984647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 10/24/2022] [Indexed: 01/25/2023] Open
Abstract
Brand love is a relationship between brands and consumers. Managing the relationship is an important issue for marketing strategy since it changes according to temporal flow. Brand love theories, including their dynamics, have been developed based on interpersonal romantic love theories. Although many brand love studies have provided useful findings, the neural mechanism of brand love remains unclear. Especially, its dynamics have not been considered from a neuroscience perspective. The present study addressed the commonalities and differentiations of activated brain regions between brand love and interpersonal romantic love relationships using a quantitative neuroimaging meta-analytic approach, from the view of brain connectivity. Regarding the mental processes of each love relationship related to these activated brain regions, decoding analysis was conducted using the NeuroQuery platform to prevent reverse inference. The results revealed that different neural mechanisms and mental processes were distinctively involved in the dynamics of each love relationship, although the anterior insula overlapped across all stages and the reinforcement learning system was driven between both love relationships in the early stage. Remarkably, regarding the distinctive mental processes, although prosocial aspects were involved in the mental processes of interpersonal romantic love relationships across all stages, they were not involved in the mental processes of brand love relationships. Conclusively, although common brain regions and mental processes between both love relationships were observed, neural mechanisms and mental processes in brand love relationship dynamics might be innately different from those in the interpersonal romantic love relationship dynamics. As this finding indicates essential distinctiveness between both these relationships, theories concerning interpersonal romantic love should be applied cautiously when investigating brand love relationship dynamics.
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Affiliation(s)
- Shinya Watanuki
- Department of Marketing, Faculty of Commerce, University of Marketing and Distribution Sciences, Kobe, Japan
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8
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Abstract
The extent to which we are affected by perceptual input of which we are unaware is widely debated. By measuring neural responses to sensory stimulation, neuroscientific data could complement behavioral results with valuable evidence. Here we review neuroscientific findings of processing of high-level information, as well as interactions with attention and memory. Although the results are mixed, we find initial support for processing object categories and words, possibly to the semantic level, as well as emotional expressions. Robust neural evidence for face individuation and integration of sentences or scenes is lacking. Attention affects the processing of stimuli that are not consciously perceived, and such stimuli may exogenously but not endogenously capture attention when relevant, and be maintained in memory over time. Sources of inconsistency in the literature include variability in control for awareness as well as individual differences, calling for future studies that adopt stricter measures of awareness and probe multiple processes within subjects.
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Affiliation(s)
- Liad Mudrik
- School of Psychological Sciences and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel;
| | - Leon Y Deouell
- Department of Psychology and The Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel;
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9
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Jepma M, Roy M, Ramlakhan K, van Velzen M, Dahan A. Different brain systems support learning from received and avoided pain during human pain-avoidance learning. eLife 2022; 11:74149. [PMID: 35731646 PMCID: PMC9217130 DOI: 10.7554/elife.74149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 06/07/2022] [Indexed: 12/14/2022] Open
Abstract
Both unexpected pain and unexpected pain absence can drive avoidance learning, but whether they do so via shared or separate neural and neurochemical systems is largely unknown. To address this issue, we combined an instrumental pain-avoidance learning task with computational modeling, functional magnetic resonance imaging (fMRI), and pharmacological manipulations of the dopaminergic (100 mg levodopa) and opioidergic (50 mg naltrexone) systems (N = 83). Computational modeling provided evidence that untreated participants learned more from received than avoided pain. Our dopamine and opioid manipulations negated this learning asymmetry by selectively increasing learning rates for avoided pain. Furthermore, our fMRI analyses revealed that pain prediction errors were encoded in subcortical and limbic brain regions, whereas no-pain prediction errors were encoded in frontal and parietal cortical regions. However, we found no effects of our pharmacological manipulations on the neural encoding of prediction errors. Together, our results suggest that human pain-avoidance learning is supported by separate threat- and safety-learning systems, and that dopamine and endogenous opioids specifically regulate learning from successfully avoided pain.
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Affiliation(s)
- Marieke Jepma
- Department of Psychology, University of Amsterdam, Amsterdam, Netherlands.,Department of Psychology, Leiden University, Leiden, Netherlands.,Leiden Institute for Brain and Cognition, Leiden, Netherlands
| | - Mathieu Roy
- Department of Psychology, McGill University, Montreal, Canada.,Alan Edwards Centre for Research on Pain, McGill University, Montreal, Canada
| | - Kiran Ramlakhan
- Department of Psychology, Leiden University, Leiden, Netherlands.,Department of Research and Statistics, Municipality of Amsterdam, Amsterdam, Netherlands
| | - Monique van Velzen
- Department of Anesthesiology, Leiden University Medical Center, Leiden, Netherlands
| | - Albert Dahan
- Department of Anesthesiology, Leiden University Medical Center, Leiden, Netherlands
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10
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Heshmati M, Bruchas MR. Historical and Modern Evidence for the Role of Reward Circuitry in Emergence. Anesthesiology 2022; 136:997-1014. [PMID: 35362070 PMCID: PMC9467375 DOI: 10.1097/aln.0000000000004148] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Increasing evidence supports a role for brain reward circuitry in modulating arousal along with emergence from anesthesia. Emergence remains an important frontier for investigation, since no drug exists in clinical practice to initiate rapid and smooth emergence. This review discusses clinical and preclinical evidence indicating a role for two brain regions classically considered integral components of the mesolimbic brain reward circuitry, the ventral tegmental area and the nucleus accumbens, in emergence from propofol and volatile anesthesia. Then there is a description of modern systems neuroscience approaches to neural circuit investigations that will help span the large gap between preclinical and clinical investigation with the shared aim of developing therapies to promote rapid emergence without agitation or delirium. This article proposes that neuroscientists include models of whole-brain network activity in future studies to inform the translational value of preclinical investigations and foster productive dialogues with clinician anesthesiologists.
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Affiliation(s)
- Mitra Heshmati
- Center for the Neurobiology of Addiction, Pain, and Emotion, Department of Anesthesiology and Pain Medicine, and Department of Biological Structure, University of Washington, Seattle, Washington
| | - Michael R Bruchas
- Center for the Neurobiology of Addiction, Pain, and Emotion, Department of Anesthesiology and Pain Medicine, and Department of Pharmacology, University of Washington, Seattle, Washington
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11
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Batzu L, Titova N, Bhattacharyya KB, Chaudhuri KR. The pathophysiology of sexual dysfunction in Parkinson's disease: An overview. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 162:21-34. [PMID: 35397787 DOI: 10.1016/bs.irn.2022.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sexual dysfunction is a common, poorly recognized, poorly discussed (often because of cultural perceptions and sensitivities), bothersome and neglected aspect of the range of non-motor symptoms of Parkinson's disease (PD). The spectrum of sexual dysfunction in PD ranges from hyposexuality-based disturbances to hypersexuality-dominated behaviors in the context of drug-induced impulse control disorder. The pathophysiological mechanisms underlying PD-related sexual dysfunction, specifically for hyposexual disorders, are thus heterogeneous and still not fully understood. However, central and peripheral neural mechanisms secondary to the hallmark pathological alterations of the disease (alpha-synuclein deposition and nigrostriatal degeneration) and to the associated network and neurotransmitter dysfunctions, together with the effects of dopaminergic therapies, seem to play an important role in the development of sexual disturbances. In this chapter, we therefore review the neuroanatomical and neurophysiological basis of sexual function in humans, and we provide insights on the pathophysiological mechanisms of hyposexuality and hypersexuality in PD.
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Affiliation(s)
- Lucia Batzu
- Clinical Director Parkinson's Foundation Centre of Excellence, King's College Hospital, London, United Kingdom; Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neurosciences, King's College London, London, United Kingdom
| | - Nataliya Titova
- Department of Neurology, Neurosurgery and Medical Genetics, Federal State Autonomous Educational Institution of Higher Education "N.I. Pirogov Russian National Research Medical University" of the Ministry of Health of the Russian Federation, Moscow, Russia; Department of Neurodegenerative Diseases, Federal State Budgetary Institution 'Federal Center of Brain and Neurotechnologies' of the Ministry of Health of the Russian Federation, Moscow, Russia
| | | | - K Ray Chaudhuri
- Clinical Director Parkinson's Foundation Centre of Excellence, King's College Hospital, London, United Kingdom; Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neurosciences, King's College London, London, United Kingdom.
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12
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Silverman HE, Gazes Y, Barker MS, Manoochehri M, Goldman JS, Wassermann EM, Tierney MC, Cosentino S, Grafman J, Huey ED. Frontal Pole Hypometabolism Linked to Reduced Prosocial Sexual Behaviors in Frontotemporal Dementia and Corticobasal Syndrome. J Alzheimers Dis 2021; 77:821-830. [PMID: 32741826 DOI: 10.3233/jad-200346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Changes in sexual behaviors in frontotemporal dementia (FTD) are common and multifaceted, but not well characterized. OBJECTIVE To characterize changes in sexual behaviors and intimacy in FTD compared to corticobasal syndrome (CBS) and normal controls (NC), and to evaluate the neuroanatomical associations of these changes. METHODS Spouses of 30 FTD patients, 20 CBS patients, and 35 NC completed the Sexual Symptoms in Neurological Illness and Injury Questionnaire (SNIQ), which captures changes in sexual interest, inappropriate sexual behaviors, and prosocial sexual behaviors. 25 patients with FTD and 14 patients with CBS also received 18-flouorodeoxyglucose positron-emission topography (18FDG-PET) scans to determine the metabolic changes associated with these symptoms. RESULTS FTD patients showed a greater increase in inappropriate sexual behaviors than CBS patients [p = 0.009] and NC [p < 0.001] and a greater decrease in prosocial sexual behaviors than CBS patients [p = 0.026] and NC [p < 0.001]. Groups did not differ in change in sexual interest. Among both patient groups, the most common change was decreased prosocial sexual behaviors p < 0.01. Hypometabolism in Brodmann's Area 10 (BA10), within the right frontal pole, correlated with decreased prosocial sexual behaviors [p(FWE-corr) <0.05, k = 44]. No anatomical associations were found with other sexual changes. CONCLUSION Decreased prosocial sexual behavior was associated with hypometabolism in BA 10, an area tied to social knowledge and theory of mind, supporting the idea that changes reflect social-cognitive deficits due to frontal dysfunction.
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Affiliation(s)
- Hannah E Silverman
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Yunglin Gazes
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Megan S Barker
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Masood Manoochehri
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Jill S Goldman
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Eric M Wassermann
- Behavioral Neurology Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Michael C Tierney
- Behavioral Neurology Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Stephanie Cosentino
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Jordan Grafman
- Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Brain Injury Research Program, Shirley Ryan AbilityLab, Chicago, IL, USA
| | - Edward D Huey
- The Gertrude H. Sergievsky Center & Taub Institute for Research in Alzheimer's Disease and The Aging Brain, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
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13
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Dickenson JA, Diamond L, King JB, Jenson K, Anderson JS. Understanding heterosexual women's erotic flexibility: the role of attention in sexual evaluations and neural responses to sexual stimuli. Soc Cogn Affect Neurosci 2021; 15:447-465. [PMID: 32415978 PMCID: PMC7308660 DOI: 10.1093/scan/nsaa058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/10/2020] [Accepted: 04/13/2020] [Indexed: 11/13/2022] Open
Abstract
Many women experience desires, arousal and behavior that run counter to their sexual orientation (orientation inconsistent, 'OI'). Are such OI sexual experiences cognitively and neurobiologically distinct from those that are consistent with one's sexual orientation (orientation consistent, 'OC')? To address this question, we employed a mindful attention intervention-aimed at reducing judgment and enhancing somatosensory attention-to examine the underlying attentional and neurobiological processes of OC and OI sexual stimuli among predominantly heterosexual women. Women exhibited greater neural activity in response to OC, compared to OI, sexual stimuli in regions associated with implicit visual processing, volitional appraisal and attention. In contrast, women exhibited greater neural activity to OI, relative to OC, sexual stimuli in regions associated with complex visual processing and attentional shifting. Mindfully attending to OC sexual stimuli reduced distraction, amplified women's evaluations of OC stimuli as sexually arousing and deactivated the superior cerebellum. In contrast, mindfully attending to OI sexual stimuli amplified distraction, decreased women's evaluations of OI stimuli as sexually arousing and augmented parietal and temporo-occipital activity. Results of the current study constrain hypotheses of female erotic flexibility, suggesting that sexual orientation may be maintained by differences in attentional processing that cannot be voluntarily altered.
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Affiliation(s)
- Janna A Dickenson
- Human Sexuality, California Institute of Integral Studies, San Francisco, CA 94103, USA.,Department of Psychology, University of Utah, Salt Lake City, UT 84112, USA
| | - Lisa Diamond
- Department of Psychology, University of Utah, Salt Lake City, UT 84112, USA
| | - Jace B King
- Department of Radiology and Imaging Sciences, School of Medicine, University of Utah, Salt Lake City, UT 84132, USA.,Program in Neuroscience, University of Utah, Salt Lake City, UT 84108, USA
| | - Kay Jenson
- Department of Psychology, University of Utah, Salt Lake City, UT 84112, USA
| | - Jeffrey S Anderson
- Department of Radiology and Imaging Sciences, School of Medicine, University of Utah, Salt Lake City, UT 84132, USA.,Program in Neuroscience, University of Utah, Salt Lake City, UT 84108, USA.,Department of Bioengineering, University of Utah, Salt Lake City, UT 84108, USA
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14
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Bjork JM. The ups and downs of relating nondrug reward activation to substance use risk in adolescents. CURRENT ADDICTION REPORTS 2021; 7:421-429. [PMID: 33585160 DOI: 10.1007/s40429-020-00327-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Purpose of review A wealth of epidemiological and cohort research, together with a healthy dose of anecdote, has characterized late-adolescence and emerging adulthood as a time of increased substance use and other risky behaviors. This review will address whether differences between adolescents or between adolescents and other age groups in dopaminergic mesolimbic recruitment by (non-drug) rewards inferred from functional magnetic resonance imaging (fMRI) could partially explain morbidity and mortality from risky-behavior-related causes in adolescents. Recent findings Recent findings do not suggest a definitive directionality with regard to whether increased vs decreased mesolimbic responsiveness to nondrug rewards correlates with real-world risk-taking. Inconsistent relationships between reward-activation and real-world risky behavior in these reports reflect in part methodological differences as well as conceptual differences between populations in terms of whether tepid mesolimbic recruitment by rewards is a marker of psychiatric health. Summary There are several potential reasons why the directionality of relationships between reward-elicited brain activation and substance use risk (specifically) might differ. These factors include differences between adolescents in histories/exposure of substance use, motivation for substance use, the component of the instrumental behavior being studied, and the cognitive demands of the incentive tasks. Systematic manipulation of these discrepant study factors might offer a way forward to clarify how motivational neurocircuit function relates to addiction risk in adolescents.
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Affiliation(s)
- James M Bjork
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University
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15
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Using pharmacological manipulations to study the role of dopamine in human reward functioning: A review of studies in healthy adults. Neurosci Biobehav Rev 2020; 120:123-158. [PMID: 33202256 DOI: 10.1016/j.neubiorev.2020.11.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 01/08/2023]
Abstract
Dopamine (DA) plays a key role in reward processing and is implicated in psychological disorders such as depression, substance use, and schizophrenia. The role of DA in reward processing is an area of highly active research. One approach to this question is drug challenge studies with drugs known to alter DA function. These studies provide good experimental control and can be performed in parallel in laboratory animals and humans. This review aimed to summarize results of studies using pharmacological manipulations of DA in healthy adults. 'Reward' is a complex process, so we separated 'phases' of reward, including anticipation, evaluation of cost and benefits of upcoming reward, execution of actions to obtain reward, pleasure in response to receiving a reward, and reward learning. Results indicated that i) DAergic drugs have different effects on different phases of reward; ii) the relationship between DA and reward functioning appears unlikely to be linear; iii) our ability to detect the effects of DAergic drugs varies depending on whether subjective, behavioral, imaging measures are used.
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16
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Déli E, Kisvárday Z. The thermodynamic brain and the evolution of intellect: the role of mental energy. Cogn Neurodyn 2020; 14:743-756. [PMID: 33101528 DOI: 10.1007/s11571-020-09637-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 07/20/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
The living state is low entropy, highly complex organization, yet it is part of the energy cycle of the environment. Due to the recurring presence of the resting state, stimulus and its response form a thermodynamic cycle of perception that can be modeled by the Carnot engine. The endothermic reversed Carnot engine relies on energy from the environment to increase entropy (i.e., the synaptic complexity of the resting state). High entropy relies on mental energy, which represents intrinsic motivation and focuses on the future. It increases freedom of action. The Carnot engine can model exothermic, negative emotional states, which direct the focus on the past. The organism dumps entropy and energy to its environment, in the form of aggravation, anxiety, criticism, and physical violence. The loss of mental energy curtails freedom of action, forming apathy, depression, mental diseases, and immune problems. Our improving intuition about the brain's intelligent computations will allow the development of new treatments for mental disease and novel find applications in robotics and artificial intelligence.
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Affiliation(s)
| | - Zoltán Kisvárday
- MTA-DE Neuroscience Research Group, University of Debrecen, Debrecen, Hungary
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17
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Attractiveness and neural processing of infant faces: effects of a facial abnormality but not dopamine. Physiol Behav 2020; 222:112937. [PMID: 32433919 DOI: 10.1016/j.physbeh.2020.112937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/09/2020] [Accepted: 04/23/2020] [Indexed: 11/23/2022]
Abstract
Adults' caregiving responses toward infants may have important origins in the perception and processing of infant cues as well as the motivation to attend to these cues. Moreover, some biological processes, such as dopaminergic neurotransmission, may be crucially involved. Although infant stimuli are generally experienced as cute and rewarding, infants with a visible disability may be regarded much less favorably than others, perhaps dependent on differences in perception, motivation, and neural processing. The current study investigated effects of administered dopamine on the perceived attractiveness and neurophysiological indices of attention and processing (i.e., the P1, P2, and N170 components of the event-related potential) of infant faces with and without a cleft lip. No evidence for effects of dopamine was found, but we replicated the finding that the decreased attractiveness of infants with a cleft lip was mediated by decreased configural face processing (smaller N170 amplitudes), but not more general attentional and/or executive processing (P2). The current findings show once again the unfavorable consequences of a cleft lip, but also highlight the importance of combining and relating measures across various levels of analysis and underscore the importance of replication.
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18
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Yang L, Demetriou L, Wall MB, Mills EG, Zargaran D, Sykes M, Prague JK, Abbara A, Owen BM, Bassett PA, Rabiner EA, Comninos AN, Dhillo WS. Kisspeptin enhances brain responses to olfactory and visual cues of attraction in men. JCI Insight 2020; 5:133633. [PMID: 32051344 PMCID: PMC7098781 DOI: 10.1172/jci.insight.133633] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/18/2019] [Indexed: 01/07/2023] Open
Abstract
Successful reproduction is a fundamental physiological process that relies on the integration of sensory cues of attraction with appropriate emotions and behaviors and the reproductive axis. However, the factors responsible for this integration remain largely unexplored. Using functional neuroimaging, hormonal, and psychometric analyses, we demonstrate that the reproductive hormone kisspeptin enhances brain activity in response to olfactory and visual cues of attraction in men. Furthermore, the brain regions enhanced by kisspeptin correspond to areas within the olfactory and limbic systems that govern sexual behavior and perception of beauty as well as overlap with its endogenous expression pattern. Of key functional and behavioral significance, we observed that kisspeptin was most effective in men with lower sexual quality-of-life scores. As such, our results reveal a previously undescribed attraction pathway in humans activated by kisspeptin and identify kisspeptin signaling as a new therapeutic target for related reproductive and psychosexual disorders. Kisspeptin enhances brain processing in response to olfactory and visual cues of attraction and is most effective in men with lower sexual quality of life.
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Affiliation(s)
- Lisa Yang
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Lysia Demetriou
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom.,Invicro, Hammersmith Hospital, London, United Kingdom
| | - Matthew B Wall
- Invicro, Hammersmith Hospital, London, United Kingdom.,Division of Brain Sciences, Faculty of Medicine, Imperial College London, United Kingdom.,Clinical Psychopharmacology Unit, University College London, United Kingdom
| | - Edouard Ga Mills
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - David Zargaran
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Mark Sykes
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Julia K Prague
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Ali Abbara
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Bryn M Owen
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | | | - Eugenii A Rabiner
- Invicro, Hammersmith Hospital, London, United Kingdom.,Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, United Kingdom
| | - Alexander N Comninos
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom.,Department of Endocrinology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Waljit S Dhillo
- Section of Endocrinology & Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
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19
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Calabrò RS, Cacciola A, Bruschetta D, Milardi D, Quattrini F, Sciarrone F, la Rosa G, Bramanti P, Anastasi G. Neuroanatomy and function of human sexual behavior: A neglected or unknown issue? Brain Behav 2019; 9:e01389. [PMID: 31568703 PMCID: PMC6908863 DOI: 10.1002/brb3.1389] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/03/2019] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Sexual desire, arousal, and orgasm are mediated by complex, yet still not fully understood, interactions of the somatic and autonomic nervous systems operating at the central and peripheral levels. Disruption of endocrine, neural, or vascular response, caused by aging, medical illness, neurological diseases, surgery, or drugs, can lead to sexual dysfunctions, thus significantly affecting patients' quality of life. PURPOSE This narrative review aims at characterizing the involvement of the central nervous system in human sexual behavior. METHODS A literature search was conducted using PubMed in its entirety up to June 2018, analyzing the studies dealing with the neurobiological and neurophysiological basis of human sexuality. RESULTS Sexual behavior is regulated by both subcortical structures, such as the hypothalamus, brainstem, and spinal cord, and several cortical brain areas acting as an orchestra to finely adjust this primitive, complex, and versatile behavior. At the central level, dopaminergic and serotonergic systems appear to play a significant role in various factors of sexual response, although adrenergic, cholinergic, and other neuropeptide transmitter systems may contribute as well. CONCLUSIONS Providing healthcare professionals with information concerning sexual behavior may overcome useless and sometimes dangerous barriers and improve patient management, since sexual well-being is considered one of the most important aspects of one's quality of life.
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Affiliation(s)
| | | | - Daniele Bruschetta
- Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Demetrio Milardi
- IRCCS Centro Neurolesi "Bonino Pulejo", Messina, Italy.,Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, Messina, Italy
| | | | | | | | | | - Giuseppe Anastasi
- Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, Messina, Italy
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20
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Moore KM, Oelberg WL, Glass MR, Johnson MD, Been LE, Meisel RL. Glutamate Afferents From the Medial Prefrontal Cortex Mediate Nucleus Accumbens Activation by Female Sexual Behavior. Front Behav Neurosci 2019; 13:227. [PMID: 31636548 PMCID: PMC6787489 DOI: 10.3389/fnbeh.2019.00227] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/12/2019] [Indexed: 11/17/2022] Open
Abstract
Low levels of desire and arousal are the primary sexual dysfunctions in women, necessitating neurobiological studies of sexual motivation in female animal models. As the mesocorticolimbic system is a primary neural circuit underlying sexual motivation, the goal of this study was to test the hypothesis that medial prefrontal cortex (mPFC) glutamate mediates sexual behavior activation of the nucleus accumbens. Glutamatergic neurons in the mPFC were activated by sex behavior, and these sex-activated cells shown to project to the nucleus accumbens. During sexual interactions with the male, glutamate transients recorded in the nucleus accumbens of female hamsters were specifically associated with the receipt of intromissions from the male. Further, inhibition of the mPFC during sex significantly decreased nucleus accumbens activation. Glutamatergic medial prefrontal cortical input to the nucleus accumbens mediates the activity in the nucleus accumbens during female sexual behavior. These results offer novel insights into the neurobiology of the motivational control of female sexual behavior and provide attractive avenues for pursuing target-specific and clinically-relevant therapies for sexual dysfunction in women.
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Affiliation(s)
- Kelsey M. Moore
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Wyatt L. Oelberg
- Department of Biomedical Engineering, College of Science and Engineering, University of Minnesota, Minneapolis, MN, United States
| | - M. Rose Glass
- Department of Psychology, Haverford College, Haverford, PA, United States
| | - Matthew D. Johnson
- Department of Biomedical Engineering, College of Science and Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Laura E. Been
- Department of Psychology, Haverford College, Haverford, PA, United States
| | - Robert L. Meisel
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
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21
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Wolke SA, Mehta MA, O'Daly O, Zelaya F, Zahreddine N, Keren H, O'Callaghan G, Young AH, Leibenluft E, Pine DS, Stringaris A. Modulation of anterior cingulate cortex reward and penalty signalling in medication-naive young-adult subjects with depressive symptoms following acute dose lurasidone. Psychol Med 2019; 49:1365-1377. [PMID: 30606271 PMCID: PMC6518385 DOI: 10.1017/s0033291718003306] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 10/08/2018] [Accepted: 10/12/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Aberrations in reward and penalty processing are implicated in depression and putatively reflect altered dopamine signalling. This study exploits the advantages of a placebo-controlled design to examine how a novel D2 antagonist with adjunctive antidepressant properties modifies activity in the brain's reward network in depression. METHODS We recruited 43 medication-naïve subjects across the range of depression severity (Beck's Depression Inventory-II score range: 0-43), including healthy volunteers, as well as people meeting full-criteria for major depressive disorder. In a double-blind placebo-controlled cross-over design, all subjects received either placebo or lurasidone (20 mg) across two visits separated by 1 week. Functional magnetic resonance imaging with the Monetary Incentive Delay (MID) task assessed reward functions via neural responses during anticipation and receipt of gains and losses. Arterial spin labelling measured cerebral blood flow (CBF) at rest. RESULTS Lurasidone altered fronto-striatal activity during anticipation and outcome phases of the MID task. A significant three-way Medication-by-Depression severity-by-Outcome interaction emerged in the anterior cingulate cortex (ACC) after correction for multiple comparisons. Follow-up analyses revealed significantly higher ACC activation to losses in high- v. low depression participants in the placebo condition, with a normalisation by lurasidone. This effect could not be accounted for by shifts in resting CBF. CONCLUSIONS Lurasidone acutely normalises reward processing signals in individuals with depressive symptoms. Lurasidone's antidepressant effects may arise from reducing responses to penalty outcomes in individuals with depressive symptoms.
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Affiliation(s)
- Selina A. Wolke
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
- Mood Brain and Development Unit, Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, MD, USA
| | - Mitul A. Mehta
- Department of Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Owen O'Daly
- Department of Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Fernando Zelaya
- Department of Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Nada Zahreddine
- Department of Psychiatry, Saint-Joseph University, Beirut, Lebanon
| | - Hanna Keren
- Mood Brain and Development Unit, Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, MD, USA
| | - Georgia O'Callaghan
- Mood Brain and Development Unit, Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, MD, USA
| | - Allan H. Young
- Department of Psychological Medicine, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK
| | - Ellen Leibenluft
- Section on Mood Dysregulation and Neuroscience, Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, MD, USA
| | - Daniel S. Pine
- Section on Development and Affective Neuroscience, Emotion and Development Branch, National Institute of Mental Health, MD, USA
| | - Argyris Stringaris
- Mood Brain and Development Unit, Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, MD, USA
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22
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Clos M, Bunzeck N, Sommer T. Dopamine is a double-edged sword: dopaminergic modulation enhances memory retrieval performance but impairs metacognition. Neuropsychopharmacology 2019; 44:555-563. [PMID: 30356095 PMCID: PMC6333779 DOI: 10.1038/s41386-018-0246-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 10/09/2018] [Accepted: 10/12/2018] [Indexed: 12/30/2022]
Abstract
While memory encoding and consolidation processes have been linked with dopaminergic signaling for a long time, the role of dopamine in episodic memory retrieval remained mostly unexplored. Based on previous observations of striatal activity during memory retrieval, we used pharmacological functional magnetic resonance imaging to investigate the effects of dopamine on retrieval performance and metacognitive memory confidence in healthy humans. Dopaminergic modulation by the D2 antagonist haloperidol administered acutely during the retrieval phase improved recognition accuracy of previously learned pictures significantly and was associated with increased activity in the substantia nigra/ventral tegmental area, locus coeruleus, hippocampus, and amygdala during retrieval. In contrast, confidence for new decisions was impaired by unsystematically increased activity of the striatum across confidence levels and restricted range of responsiveness in frontostriatal networks under haloperidol. These findings offer new insights into the mechanisms underlying memory retrieval and metacognition and provide a broader perspective on the presence of memory problems in dopamine-related diseases and the treatment of memory disorders.
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Affiliation(s)
- Mareike Clos
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Nico Bunzeck
- 0000 0001 2180 3484grid.13648.38Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany ,0000 0001 0057 2672grid.4562.5Institute of Psychology I, University of Lübeck, Lübeck, Germany
| | - Tobias Sommer
- 0000 0001 2180 3484grid.13648.38Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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23
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24
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Clos M, Sommer T, Schneider SL, Rose M. Enhanced transformation of incidentally learned knowledge into explicit memory by dopaminergic modulation. PLoS One 2018; 13:e0199013. [PMID: 29902226 PMCID: PMC6002242 DOI: 10.1371/journal.pone.0199013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 05/30/2018] [Indexed: 01/07/2023] Open
Abstract
During incidental learning statistical regularities are extracted from the environment without the intention to learn. Acquired implicit memory of these regularities can affect behavior in the absence of awareness. However, conscious insight in the underlying regularities can also develop during learning. Such emergence of explicit memory is an important learning mechanism that is assumed to involve prediction errors in the striatum and to be dopamine-dependent. Here we directly tested this hypothesis by manipulating dopamine levels during incidental learning in a modified serial reaction time task (SRTT) featuring a hidden regular sequence of motor responses in a placebo-controlled between-group study. Awareness for the sequential regularity was subsequently assessed using cued generation and additionally verified using free recall. The results demonstrated that dopaminergic modulation nearly doubled the amount of explicit sequence knowledge emerged during learning in comparison to the placebo group. This strong effect clearly argues for a causal role of dopamine-dependent processing for the development of awareness for sequential regularities during learning.
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Affiliation(s)
- Mareike Clos
- Department for Systems Neuroscience, University Medical Center Hamburg Eppendorf, Martinistr. 52, Hamburg, Germany
| | - Tobias Sommer
- Department for Systems Neuroscience, University Medical Center Hamburg Eppendorf, Martinistr. 52, Hamburg, Germany
| | - Signe L. Schneider
- Department for Systems Neuroscience, University Medical Center Hamburg Eppendorf, Martinistr. 52, Hamburg, Germany
| | - Michael Rose
- Department for Systems Neuroscience, University Medical Center Hamburg Eppendorf, Martinistr. 52, Hamburg, Germany
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25
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Graf H, Wiegers M, Metzger CD, Walter M, Abler B. Differential Noradrenergic Modulation of Monetary Reward and Visual Erotic Stimulus Processing. Front Psychiatry 2018; 9:346. [PMID: 30108528 PMCID: PMC6079271 DOI: 10.3389/fpsyt.2018.00346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 07/10/2018] [Indexed: 12/17/2022] Open
Abstract
We recently investigated the effects of the noradrenergic antidepressant reboxetine and the antipsychotic amisulpride compared to placebo on neural correlates of primary reinforcers by visual erotic stimulation in healthy subjects. Whereas, amisulpride left subjective sexual functions and corresponding neural activations unimpaired, attenuated neural activations were observed under reboxetine within the nucleus accumbens (Nacc) along with diminished behavioral sexual functioning. However, a global dampening of the reward system under reboxetine seemed not intuitive considering the complementary role of the noradrenergic to the dopamine system in reward-related learning mediated by prediction error processing. We therefore investigated the sample of 17 healthy males in a mean age of 23.8 years again by functional magnetic resonance imaging (fMRI), to explore the noradrenergic effects on neural reward prediction error signaling. Participants took reboxetine (4 mg/d), amisulpride (200 mg/d), and placebo each for 7 days within a randomized, double-blind, within-subject cross-over design. During fMRI, we used an established monetary incentive task to assess neural reward expectation and prediction error signals within the bilateral Nacc using an independent anatomical mask for a region of interest (ROI) analysis. Activations within the same ROI were also assessed for the erotic picture paradigm. We confirmed our previous results from the whole brain analysis for the selected ROI by significant (p < 0.05 FWE-corrected) attenuated activations within the Nacc during visual sexual stimulation under reboxetine compared to placebo. However, activations in the Nacc concerning prediction error processing and monetary reward expectation were unimpaired under reboxetine compared to placebo, along with unimpaired reaction times in the reward task. For both tasks, neural activations and behavioral processing were not altered by amisulpride compared to placebo. The observed attenuated neural activations within the Nacc during visual erotic stimulation along with unimpaired neural prediction error and monetary reward expectation processing provide evidence for a differential modulation of the neural reward system by the noradrenergic agent reboxetine depending on the presence of primary reinforcers such as erotic stimuli in contrast to secondary such as monetary rewards.
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Affiliation(s)
- Heiko Graf
- Department of Psychiatry and Psychotherapy III, Ulm University, Ulm, Germany
| | - Maike Wiegers
- Department of Psychiatry and Psychotherapy III, Ulm University, Ulm, Germany
| | - Coraline D Metzger
- Department of Psychiatry, Otto von Guericke University, Magdeburg, Germany.,Institute of Cognitive Neurology and Dementia Research, Otto von Guericke University, Magdeburg, Germany.,German Center for Neurodegenerative Diseases, Bonn, Germany
| | - Martin Walter
- Department of Psychiatry, Eberhard Karls University, Tuebingen, Germany
| | - Birgit Abler
- Department of Psychiatry and Psychotherapy III, Ulm University, Ulm, Germany
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26
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Déli E, Tozzi A, Peters JF. Relationships between short and fast brain timescales. Cogn Neurodyn 2017; 11:539-552. [PMID: 29147146 PMCID: PMC5670088 DOI: 10.1007/s11571-017-9450-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 06/22/2017] [Accepted: 08/16/2017] [Indexed: 01/11/2023] Open
Abstract
Brain electric activity exhibits two important features: oscillations with different timescales, characterized by diverse functional and psychological outcomes, and a temporal power law distribution. In order to further investigate the relationships between low- and high- frequency spikes in the brain, we used a variant of the Borsuk-Ulam theorem which states that, when we assess the nervous activity as embedded in a sphere equipped with a fractal dimension, we achieve two antipodal points with similar features (the slow and fast, scale-free oscillations). We demonstrate that slow and fast nervous oscillations mirror each other over time via a sinusoid relationship and provide, through the Bloch theorem from solid-state physics, the possible equation which links the two timescale activities. We show that, based on topological findings, nervous activities occurring in micro-levels are projected to single activities at meso- and macro-levels. This means that brain functions assessed at the higher scale of the whole brain necessarily display a counterpart in the lower ones, and vice versa. Our topological approach makes it possible to assess brain functions both based on entropy, and in the general terms of particle trajectories taking place on donut-like manifolds. Condensed brain activities might give rise to ideas and concepts by combination of different functional and anatomical levels. Furthermore, cognitive phenomena, as well as social activity can be described by the laws of quantum mechanics; memories and decisions exhibit holographic organization. In physics, the term duality refers to a case where two seemingly different systems turn out to be equivalent. This topological duality holds for all the types of spatio-temporal brain activities, independent of their inter- and intra-level relationships, strength, magnitude and boundaries, allowing us to connect the physiological manifestations of consciousness to the electric activities of the brain.
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Affiliation(s)
- Eva Déli
- Institute for Consciousness Studies (ICS), Benczurter 9, Nyíregyháza, 4400 Hungary
| | - Arturo Tozzi
- Center for Nonlinear Science, University of North Texas, 1155 Union Circle, #311427, Denton, TX 76203-5017 USA
| | - James F. Peters
- Department of Electrical and Computer Engineering, University of Manitoba, 75A Chancellor’s Circle, Winnipeg, MB R3T 5V6 Canada
- Department of Mathematics, Adıyaman University, 02040 Adıyaman, Turkey
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27
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Chen J, Chen Y, Gao Q, Chen G, Dai Y, Yao Z, Lu Q. Brain structural network topological alterations of the left prefrontal and limbic cortex in psychogenic erectile dysfunction. Int J Neurosci 2017; 128:393-403. [PMID: 28969487 DOI: 10.1080/00207454.2017.1387116] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jianhuai Chen
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yun Chen
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Qingqiang Gao
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Guotao Chen
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yutian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhijian Yao
- Department of Psychiatry, Nanjing Brain Hospital, The Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qing Lu
- Key Laboratory of Child Development and Learning Science, Research Centre For Learning Science, Southeast University, Nanjing, China
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Abstract
PURPOSE OF REVIEW Sexual dysfunction is a frequent issue in patients with affective disorders, affecting its quality of life and posing challenges to the approach of these patients. RECENT FINDINGS In recent years, human sexuality has attracted interest from the scientific community, and today we have a much deeper knowledge of the mechanisms involved in the sexual response. Paraphilias or sexual dysfunctions like low sexual desire, premature ejaculation, and erectile dysfunction, are frequent in affective disorders, and the frequency of each sexual problem varies according to the affective disorder. Comparing what is currently known about the sexual response with the main neurobiological findings of depressive, anxiety, obsessive-compulsive and posttraumatic stress disorders, it is possible to better understand specific sexual complaints of patients with these disorders. SUMMARY A better understanding of sexual function in affective disorders may help clinicians to choose treatments more suited to specific needs of these patients. Although the current state of science already allows us to have some understanding about sexual function in affective disorders, this critical area of research is still in its infancy, waiting for more investment.
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Dopaminergic tone does not influence pain levels during placebo interventions in patients with chronic neuropathic pain. Pain 2017; 159:261-272. [DOI: 10.1097/j.pain.0000000000001089] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Both S. Recent Developments in Psychopharmaceutical Approaches to Treating Female Sexual Interest and Arousal Disorder. CURRENT SEXUAL HEALTH REPORTS 2017; 9:192-199. [PMID: 29225554 PMCID: PMC5711968 DOI: 10.1007/s11930-017-0124-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Purpose of Review This review summarizes the recent literature and empirical studies on psychopharmacological approaches to treating female sexual interest/arousal disorder (FSIAD). Recent Findings Several new drugs for FSIAD that are intended to increase sexual responsiveness by influencing central excitatory and inhibitory neuromodulatory processes are under development. Studies on flibanserin resulted in the first approved medication for the treatment of low sexual desire in premenopausal women. New drugs under development are testosterone combined with sildenafil or buspiron, bremelanotide, BP101, and nasal testosterone (TBS-2). Summary Although pharmacological enhancement of sexual responsiveness may be potentially helpful in the treatment of FSIAD, the observed effects of flibanserin and other new drugs under development seem limited in terms of clinical significance. Given the multifactorial character of FSIAD, it may be important to integrate psychopharmacological treatment with sex therapy for optimal treatment efficacy.
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Affiliation(s)
- Stephanie Both
- Department of Psychosomatic Gynecology and Sexology, Leiden University Medical Center, Albinusdreef 2, PO Box 9600, 2300 RC Leiden, The Netherlands
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31
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Wise NJ, Frangos E, Komisaruk BR. Brain Activity Unique to Orgasm in Women: An fMRI Analysis. J Sex Med 2017; 14:1380-1391. [PMID: 28986148 DOI: 10.1016/j.jsxm.2017.08.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 08/04/2017] [Accepted: 08/30/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Although the literature on imaging of regional brain activity during sexual arousal in women and men is extensive and largely consistent, that on orgasm is relatively limited and variable, owing in part to the methodologic challenges posed by variability in latency to orgasm in participants and head movement. AIM To compare brain activity at orgasm (self- and partner-induced) with that at the onset of genital stimulation, immediately before the onset of orgasm, and immediately after the cessation of orgasm and to upgrade the methodology for obtaining and analyzing functional magnetic resonance imaging (fMRI) findings. METHODS Using fMRI, we sampled equivalent time points across female participants' variable durations of stimulation and orgasm in response to self- and partner-induced clitoral stimulation. The first 20-second epoch of orgasm was contrasted with the 20-second epochs at the beginning of stimulation and immediately before and after orgasm. Separate analyses were conducted for whole-brain and brainstem regions of interest. For a finer-grained analysis of the peri-orgasm phase, we conducted a time-course analysis on regions of interest. Head movement was minimized to a mean less than 1.3 mm using a custom-fitted thermoplastic whole-head and neck brace stabilizer. OUTCOMES Ten women experienced orgasm elicited by self- and partner-induced genital stimulation in a Siemens 3-T Trio fMRI scanner. RESULTS Brain activity gradually increased leading up to orgasm, peaked at orgasm, and then decreased. We found no evidence of deactivation of brain regions leading up to or during orgasm. The activated brain regions included sensory, motor, reward, frontal cortical, and brainstem regions (eg, nucleus accumbens, insula, anterior cingulate cortex, orbitofrontal cortex, operculum, right angular gyrus, paracentral lobule, cerebellum, hippocampus, amygdala, hypothalamus, ventral tegmental area, and dorsal raphe). CLINICAL TRANSLATION Insight gained from the present findings could provide guidance toward a rational basis for treatment of orgasmic disorders, including anorgasmia. STRENGTHS AND LIMITATIONS This is evidently the first fMRI study of orgasm elicited by self- and partner-induced genital stimulation in women. Methodologic solutions to the technical issues posed by excessive head movement and variable latencies to orgasm were successfully applied in the present study, enabling identification of brain regions involved in orgasm. Limitations include the small sample (N = 10), which combined self- and partner-induced stimulation datasets for analysis and which qualify the generalization of our conclusions. CONCLUSION Extensive cortical, subcortical, and brainstem regions reach peak levels of activity at orgasm. Wise NJ, Frangos E, Komisaruk BR. Brain Activity Unique to Orgasm in Women: An fMRI Analysis. J Sex Med 2017;14:1380-1391.
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Affiliation(s)
- Nan J Wise
- Department of Psychology, Rutgers University-Newark, Newark, NJ, USA.
| | - Eleni Frangos
- Department of Psychology, Rutgers University-Newark, Newark, NJ, USA
| | - Barry R Komisaruk
- Department of Psychology, Rutgers University-Newark, Newark, NJ, USA
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Shin M, Field TM, Stucky CS, Furgurson MN, Johnson MA. Ex Vivo Measurement of Electrically Evoked Dopamine Release in Zebrafish Whole Brain. ACS Chem Neurosci 2017; 8:1880-1888. [PMID: 28617576 DOI: 10.1021/acschemneuro.7b00022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Zebrafish (Danio rerio) have recently emerged as useful model organism for the study of neuronal function. Here, fast-scan cyclic voltammetry (FSCV) at carbon-fiber microelectrodes was used to measure locally evoked dopamine release and uptake in zebrafish whole brain preparations and results were compared with those obtained from brain slices. Evoked dopamine release ([DA]max) was similar in whole brain and sagittal brain slice preparations (0.49 ± 0.13 μM in whole brain and 0.59 ± 0.28 μM in brain slices). Treatment with α-methyl-p-tyrosine methyl ester (αMPT), an inhibitor of tyrosine hydroxylase, diminished release and the electrochemical signal reappeared after subsequent drug washout. No observed change in stimulated release current occurred after treatment with desipramine or fluoxetine in the whole brain. Treatment with the uptake inhibitors, nomifensine or GBR 12909 increased [DA]max, while treatment with sulpiride, a D2 dopamine autoreceptor antagonist, resulted in increased stimulated dopamine release in whole brain, but had no effect on release in slices. Dopamine release in whole brains increased progressively up to an electrical stimulation frequency of 25 Hz, while release in slices increased up to a frequency of only 10 Hz and then plateaued, highlighting another key difference between these preparations. We observed a lag in peak dopamine release following stimulation, which we address using diffusion models and pharmacological treatments. Collectively, these results demonstrate the electrochemical determination of dopamine release in the whole, intact brain of a vertebrate species ex vivo and are an important step for carrying out further experiments in zebrafish.
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Affiliation(s)
- Mimi Shin
- Department of Chemistry, 1251 Wescoe Hall Drive, University of Kansas, Lawrence, Kansas 66045, United States
| | - Thomas M. Field
- Department of Chemistry, 1251 Wescoe Hall Drive, University of Kansas, Lawrence, Kansas 66045, United States
| | - Chase S. Stucky
- Department of Chemistry, 1251 Wescoe Hall Drive, University of Kansas, Lawrence, Kansas 66045, United States
| | - Mia N. Furgurson
- Department of Chemistry, 1251 Wescoe Hall Drive, University of Kansas, Lawrence, Kansas 66045, United States
| | - Michael A. Johnson
- Department of Chemistry, 1251 Wescoe Hall Drive, University of Kansas, Lawrence, Kansas 66045, United States
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Gola M, Wordecha M, Sescousse G, Lew-Starowicz M, Kossowski B, Wypych M, Makeig S, Potenza MN, Marchewka A. Can Pornography be Addictive? An fMRI Study of Men Seeking Treatment for Problematic Pornography Use. Neuropsychopharmacology 2017; 42:2021-2031. [PMID: 28409565 PMCID: PMC5561346 DOI: 10.1038/npp.2017.78] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/27/2017] [Accepted: 04/07/2017] [Indexed: 12/23/2022]
Abstract
Pornography consumption is highly prevalent, particularly among young adult males. For some individuals, problematic pornography use (PPU) is a reason for seeking treatment. Despite the pervasiveness of pornography, PPU appears under-investigated, including with respect to the underlying neural mechanisms. Using functional magnetic resonance imaging (fMRI), we examined ventral striatal responses to erotic and monetary stimuli, disentangling cue-related 'wanting' from reward-related 'liking' among 28 heterosexual males seeking treatment for PPU and 24 heterosexual males without PPU. Subjects engaged in an incentive delay task in the scanner, in which they received erotic or monetary rewards preceded by predictive cues. Blood-oxygen-level-dependent responses to erotic and monetary cues were analyzed and examined with respect to self-reported data on sexual activity collected over the 2 preceding months. Men with and without PPU differed in their striatal responses to cues predicting erotic pictures but not in their responses to erotic pictures. PPU subjects when compared with control subjects showed increased activation of ventral striatum specifically for cues predicting erotic pictures but not for cues predicting monetary gains. Relative sensitivity to cues predicting erotic pictures vs monetary gains was significantly related to the increased behavioral motivation to view erotic images (suggestive of higher 'wanting'), severity of PPU, amount of pornography use per week, and number of weekly masturbations. Our findings suggest that, similar to what is observed in substance and gambling addictions, the neural and behavioral mechanisms associated with the anticipatory processing of cues specifically predicting erotic rewards relate importantly to clinically relevant features of PPU. These findings suggest that PPU may represent a behavioral addiction and that interventions helpful in targeting behavioral and substance addictions warrant consideration for adaptation and use in helping men with PPU.
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Affiliation(s)
- Mateusz Gola
- Swartz Center for Computational Neuroscience, Institute for Neural Computations, University of California San Diego, San Diego, CA, USA
- Clinical Neuroscience Laboratory, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
| | - Małgorzata Wordecha
- Clinical Neuroscience Laboratory, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
| | - Guillaume Sescousse
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Michał Lew-Starowicz
- III Department of Psychiatry, Institute of Psychiatry and Neurology, Warsaw, Poland
| | - Bartosz Kossowski
- Laboratory of Brain Imaging, Neurobiology Center, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Marek Wypych
- Laboratory of Brain Imaging, Neurobiology Center, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Scott Makeig
- Swartz Center for Computational Neuroscience, Institute for Neural Computations, University of California San Diego, San Diego, CA, USA
| | - Marc N Potenza
- Department of Psychiatry, Child Study Center and the National Center on Addiction and Substance Abuse, Yale School of Medicine, New Haven, CT, USA
- Department of Neurobiology, Child Study Center and the National Center on Addiction and Substance Abuse, Yale School of Medicine, New Haven, CT, USA
- Connecticut Mental Health Center, New Haven, CT, USA
| | - Artur Marchewka
- Laboratory of Brain Imaging, Neurobiology Center, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
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The “highs and lows” of the human brain on dopaminergics: Evidence from neuropharmacology. Neurosci Biobehav Rev 2017. [DOI: 10.1016/j.neubiorev.2017.06.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Wernicke M, Hofter C, Jordan K, Fromberger P, Dechent P, Müller JL. Neural correlates of subliminally presented visual sexual stimuli. Conscious Cogn 2017; 49:35-52. [DOI: 10.1016/j.concog.2016.12.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/29/2016] [Accepted: 12/12/2016] [Indexed: 01/15/2023]
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37
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Prause N, Siegle GJ, Deblieck C, Wu A, Iacoboni M. EEG to Primary Rewards: Predictive Utility and Malleability by Brain Stimulation. PLoS One 2016; 11:e0165646. [PMID: 27902711 PMCID: PMC5130195 DOI: 10.1371/journal.pone.0165646] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 10/14/2016] [Indexed: 11/18/2022] Open
Abstract
Theta burst stimulation (TBS) is thought to affect reward processing mechanisms, which may increase and decrease reward sensitivity. To test the ability of TBS to modulate response to strong primary rewards, participants hypersensitive to primary rewards were recruited. Twenty men and women with at least two opposite-sex, sexual partners in the last year received two forms of TBS. Stimulations were randomized to avoid order effects and separated by 2 hours to reduce carryover. The two TBS forms have been demonstrated to inhibit (continuous) or excite (intermittent) the left dorsolateral prefrontal cortex using different pulse patterns, which links to brain areas associated with reward conditioning. After each TBS, participants completed tasks assessing their reward responsiveness to monetary and sexual rewards. Electroencephalography (EEG) was recorded. They also reported their number of orgasms in the weekend following stimulation. This signal was malleable by TBS, where excitatory TBS resulted in lower EEG alpha relative to inhibitory TBS to primary rewards. EEG responses to sexual rewards in the lab (following both forms of TBS) predicted the number of orgasms experienced over the forthcoming weekend. TBS may be useful in modifying hypersensitivity or hyposensitivity to primary rewards that predict sexual behaviors. Since TBS altered the anticipation of a sexual reward, TBS may offer a novel treatment for sexual desire problems.
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Affiliation(s)
- Nicole Prause
- Department of Psychiatry; University of California;Los Angeles, CA
- * E-mail:
| | - Greg J. Siegle
- Western Psychiatric Institute and Clinic, University of Pittsburgh, Pittsburgh, PA
| | - Choi Deblieck
- Ahmanson-Lovelace Brain Mapping Center, University of California, Los Angeles, Los Angeles, CA
| | - Allan Wu
- Ahmanson-Lovelace Brain Mapping Center, University of California, Los Angeles, Los Angeles, CA
| | - Marco Iacoboni
- Ahmanson-Lovelace Brain Mapping Center, University of California, Los Angeles, Los Angeles, CA
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38
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Ponseti J, Granert O, Van Eimeren T, Jansen O, Wolff S, Beier K, Deuschl G, Huchzermeier C, Stirn A, Bosinski H, Roman Siebner H. Assessing paedophilia based on the haemodynamic brain response to face images. World J Biol Psychiatry 2016; 17:39-46. [PMID: 26452682 DOI: 10.3109/15622975.2015.1083612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Objective assessment of sexual preferences may be of relevance in the treatment and prognosis of child sexual offenders. Previous research has indicated that this can be achieved by pattern classification of brain responses to sexual child and adult images. Our recent research showed that human face processing is tuned to sexual age preferences. This observation prompted us to test whether paedophilia can be inferred based on the haemodynamic brain responses to adult and child faces. METHODS Twenty-four men sexually attracted to prepubescent boys or girls (paedophiles) and 32 men sexually attracted to men or women (teleiophiles) were exposed to images of child and adult, male and female faces during a functional magnetic resonance imaging (fMRI) session. RESULTS A cross-validated, automatic pattern classification algorithm of brain responses to facial stimuli yielded four misclassified participants (three false positives), corresponding to a specificity of 91% and a sensitivity of 95%. CONCLUSIONS These results indicate that the functional response to facial stimuli can be reliably used for fMRI-based classification of paedophilia, bypassing the problem of showing child sexual stimuli to paedophiles.
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Affiliation(s)
- Jorge Ponseti
- a Institute of Sexual Medicine and Forensic Psychiatry and Psychotherapy, Kiel University, Medical School , Kiel , Germany
| | - Oliver Granert
- b Department of Neurology , Kiel University, Medical School , Kiel , Germany
| | - Thilo Van Eimeren
- b Department of Neurology , Kiel University, Medical School , Kiel , Germany
| | - Olav Jansen
- c Department of Radiology and Neuroradiology , Kiel University, Medical School , Kiel , Germany
| | - Stephan Wolff
- c Department of Radiology and Neuroradiology , Kiel University, Medical School , Kiel , Germany
| | - Klaus Beier
- d Institute of Sexology and Sexual Medicine, Charité - Universitätsmedizin Berlin , Berlin , Germany
| | - Günther Deuschl
- b Department of Neurology , Kiel University, Medical School , Kiel , Germany
| | - Christian Huchzermeier
- a Institute of Sexual Medicine and Forensic Psychiatry and Psychotherapy, Kiel University, Medical School , Kiel , Germany
| | - Aglaja Stirn
- a Institute of Sexual Medicine and Forensic Psychiatry and Psychotherapy, Kiel University, Medical School , Kiel , Germany
| | | | - Hartwig Roman Siebner
- b Department of Neurology , Kiel University, Medical School , Kiel , Germany.,f Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre , Hvidovre , Denmark.,g Department of Neurology , Copenhagen University Hospital Bispebjerg , Bispebjerg , Denmark
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Andreou C, Kleinert J, Steinmann S, Fuger U, Leicht G, Mulert C. Oscillatory responses to reward processing in borderline personality disorder. World J Biol Psychiatry 2016. [PMID: 26212791 DOI: 10.3109/15622975.2015.1054880] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Previous electrophysiological studies have confirmed impaired reward processing in patients with BPD. However, it is not clear which aspects of reward processing are affected and which brain regions are involved. The present study investigated both evoked and induced event-related oscillations (EROs) to feedback events (thought to represent different aspects of feedback processing), and used source localization (sLORETA) to assess activity in two areas known to contribute to reward processing, the dorsomedial prefrontal/anterior cingulate cortex (dmPFC/ACC) and the orbitofrontal cortex (OFC). METHODS Eighteen patients with BPD and 22 healthy controls performed a gambling task, while 64-channel electroencephalographic activity was recorded. Evoked and induced theta and high-beta band EROs as well as activity in the two regions of interest were investigated depending on the valence and magnitude of feedback events. RESULTS Theta-band responses to negative feedback were reduced in BPD, an effect that involved only evoked responses and the dmPFC/ ACC region, and was associated with trait impulsivity in patients. sLORETA analyses revealed disturbed evoked responses depending on feedback magnitude in the theta (OFC) and high-beta (dmPFC/ACC and OFC) frequency range. CONCLUSIONS The results indicate multiple dysfunctions of feedback processing in patients with BPD, implicating several distinct subsets of reward-processing mechanisms.
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Affiliation(s)
- Christina Andreou
- a Department of Psychiatry and Psychotherapy , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Julia Kleinert
- a Department of Psychiatry and Psychotherapy , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Saskia Steinmann
- a Department of Psychiatry and Psychotherapy , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Ulrike Fuger
- a Department of Psychiatry and Psychotherapy , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Gregor Leicht
- a Department of Psychiatry and Psychotherapy , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
| | - Christoph Mulert
- a Department of Psychiatry and Psychotherapy , University Medical Center Hamburg-Eppendorf , Hamburg , Germany
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Gola M. Decreased LPP for sexual images in problematic pornography users may be consistent with addiction models. Everything depends on the model. (Commentary on Prause, Steele, Staley, Sabatinelli, & Hajcak, 2015). Biol Psychol 2016; 120:156-158. [PMID: 27235125 DOI: 10.1016/j.biopsycho.2016.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Mateusz Gola
- Swartz Center for Computational Neuroscience, Institute for Neural Computations, University of California San Diego, San Diego, USA; Institute of Psychology, Polish Academy of Science, Warsaw, Poland.
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41
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Chamberlain SR, Lochner C, Stein DJ, Goudriaan AE, van Holst RJ, Zohar J, Grant JE. Behavioural addiction-A rising tide? Eur Neuropsychopharmacol 2016; 26:841-55. [PMID: 26585600 DOI: 10.1016/j.euroneuro.2015.08.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 07/17/2015] [Accepted: 08/15/2015] [Indexed: 01/21/2023]
Abstract
The term 'addiction' was traditionally used in relation to centrally active substances, such as cocaine, alcohol, or nicotine. Addiction is not a unitary construct but rather incorporates a number of features, such as repetitive engagement in behaviours that are rewarding (at least initially), loss of control (spiralling engagement over time), persistence despite untoward functional consequences, and physical dependence (evidenced by withdrawal symptoms when intake of the substance diminishes). It has been suggested that certain psychiatric disorders characterized by maladaptive, repetitive behaviours share parallels with substance addiction and therefore represent 'behavioural addictions'. This perspective has influenced the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), which now has a category 'Substance Related and Addictive Disorders', including gambling disorder. Could other disorders characterised by repetitive behaviours, besides gambling disorder, also be considered 'addictions'? Potential examples include kleptomania, compulsive sexual behaviour, 'Internet addiction', trichotillomania (hair pulling disorder), and skin-picking disorder. This paper seeks to define what is meant by 'behavioural addiction', and critically considers the evidence for and against this conceptualisation in respect of the above conditions, from perspectives of aetiology, phenomenology, co-morbidity, neurobiology, and treatment. Research in this area has important implications for future diagnostic classification systems, neurobiological models, and novel treatment directions.
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Affiliation(s)
- Samuel R Chamberlain
- Department of Psychiatry, University of Cambridge, UK; Cambridge and Peterborough NHS Foundation Trust (CPFT), UK.
| | - Christine Lochner
- MRC Unit on Anxiety and Stress Disorders, Department of Psychiatry, Stellenbosch University, South Africa
| | - Dan J Stein
- MRC Unit on Anxiety and Stress Disorders, Department of Psychiatry and Mental Health, University of Cape Town, South Africa
| | - Anna E Goudriaan
- Amsterdam Institute for Addiction Research, Academic Medical Center, University of Amsterdam, The Netherlands and Arkin Mental Health, Amsterdam, The Netherlands
| | - Ruth Janke van Holst
- Amsterdam Institute for Addiction Research, Academic Medical Center, University of Amsterdam, The Netherlands and Arkin Mental Health, Amsterdam, The Netherlands
| | - Joseph Zohar
- Division of Psychiatry, Chaim Sheba Medical Center, Ramat Gan, Israel
| | - Jon E Grant
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Pritzker School of Medicine, Chicago, IL, USA
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The effect of a dopamine antagonist on conditioning of sexual arousal in women. Psychopharmacology (Berl) 2016; 233:1179-89. [PMID: 26832339 PMCID: PMC4801988 DOI: 10.1007/s00213-015-4201-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 12/21/2015] [Indexed: 01/20/2023]
Abstract
RATIONALE Dopamine (DA) plays a key role in reward-seeking behaviours. Accumulating evidence from animal and human studies suggests that human sexual reward learning may also depend on DA transmission. However, research on the role of DA in human sexual reward learning is completely lacking. OBJECTIVES To investigate whether DA antagonism attenuates classical conditioning of sexual response in humans. METHODS Healthy women were randomly allocated to one of two treatment conditions: haloperidol (n = 29) or placebo (n = 29). A differential conditioning paradigm was applied with genital vibrostimulation as unconditional stimulus (US) and neutral pictures as conditional stimuli (CSs). Genital arousal was assessed, and ratings of affective value and subjective sexual arousal were obtained. RESULTS Haloperidol administration affected unconditional genital responding. However, no significant effects of medication were found for conditioned responding. CONCLUSIONS No firm conclusions can be drawn about whether female sexual reward learning implicates DA transmission since the results do not lend themselves to unambiguous interpretation.
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Puviani L, Rama S, Vitetta GM. Computational Psychiatry and Psychometrics Based on Non-Conscious Stimuli Input and Pupil Response Output. Front Psychiatry 2016; 7:190. [PMID: 27965599 PMCID: PMC5124782 DOI: 10.3389/fpsyt.2016.00190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 11/14/2016] [Indexed: 12/02/2022] Open
Affiliation(s)
- Luca Puviani
- Department of Engineering Enzo Ferrari, University of Modena and Reggio Emilia , Modena , Italy
| | - Sidita Rama
- Local Health Unit of Modena , Modena , Italy
| | - Giorgio Matteo Vitetta
- Department of Engineering Enzo Ferrari, University of Modena and Reggio Emilia , Modena , Italy
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Admon R, Holsen LM, Aizley H, Remington A, Whitfield-Gabrieli S, Goldstein JM, Pizzagalli DA. Striatal Hypersensitivity During Stress in Remitted Individuals with Recurrent Depression. Biol Psychiatry 2015; 78:67-76. [PMID: 25483401 PMCID: PMC4383718 DOI: 10.1016/j.biopsych.2014.09.019] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 08/29/2014] [Accepted: 09/19/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Increased sensitivity to stress and dysfunctional reward processing are two primary characteristics of major depressive disorder (MDD) that may persist after remission. Preclinical work has established the pivotal role of the striatum in mediating both stress and reward responses. Human neuroimaging studies have corroborated these preclinical findings and highlighted striatal dysfunction in MDD in response to reward but have yet to investigate striatal function during stress, in particular in individuals with recurrent depression. METHODS A validated mild psychological stress task involving viewing of negative stimuli during functional magnetic resonance imaging was conducted in 33 remitted individuals with a history of recurrent major depressive disorder (rMDD) and 35 matched healthy control subjects. Cortisol and anxiety levels were assessed throughout scanning. Stress-related activation was investigated in three striatal regions: caudate, nucleus accumbens, and putamen. Psychophysiologic interaction analyses probed connectivity of regions with central structures of the neural stress circuitry, such as the amygdala and hippocampus. RESULTS The task increased cortisol and anxiety levels, although to a greater extent in rMDD individuals than healthy control subjects. In response to the negative stimuli, rMDD individuals, but not controls, also exhibited significantly potentiated caudate, nucleus accumbens, and putamen activations and increased caudate-amygdala and caudate-hippocampus connectivity. CONCLUSIONS The findings highlight striatal hypersensitivity in response to a mild psychological stress in rMDD, as manifested by hyperactivation and hyperconnectivity with the amygdala and hippocampus. Striatal hypersensitivity during stress might thus constitute a trait mark of depression, providing a potential neural substrate for the interaction between stress and reward dysfunction in MDD.
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Affiliation(s)
- Roee Admon
- Center for Depression, Anxiety and Stress Research, McLean Hospital, Belmont, MA, USA,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Laura M. Holsen
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA,Connors Center for Women's Health and Gender Biology, Division of Women's Health, Department of Medicine, Brigham & Women's Hospital, Boston, MA, USA,Department of Psychiatry, Brigham & Women's Hospital, Boston, MA, USA
| | - Harlyn Aizley
- Connors Center for Women's Health and Gender Biology, Division of Women's Health, Department of Medicine, Brigham & Women's Hospital, Boston, MA, USA,Department of Psychiatry, Brigham & Women's Hospital, Boston, MA, USA
| | - Anne Remington
- Connors Center for Women's Health and Gender Biology, Division of Women's Health, Department of Medicine, Brigham & Women's Hospital, Boston, MA, USA
| | - Susan Whitfield-Gabrieli
- Athinoula A. Martinos Center, Massachusetts General Hospital and Massachusetts Institute of Technology, Charlestown, MA, USA,Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Jill M. Goldstein
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA,Connors Center for Women's Health and Gender Biology, Division of Women's Health, Department of Medicine, Brigham & Women's Hospital, Boston, MA, USA,Department of Psychiatry, Brigham & Women's Hospital, Boston, MA, USA,Athinoula A. Martinos Center, Massachusetts General Hospital and Massachusetts Institute of Technology, Charlestown, MA, USA
| | - Diego A. Pizzagalli
- Center for Depression, Anxiety and Stress Research, McLean Hospital, Belmont, MA, USA,Department of Psychiatry, Harvard Medical School, Boston, MA, USA,McLean Imaging Center, McLean Hospital, Belmont, MA, USA
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45
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Prause N, Steele VR, Staley C, Sabatinelli D, Hajcak G. Modulation of late positive potentials by sexual images in problem users and controls inconsistent with "porn addiction". Biol Psychol 2015; 109:192-9. [PMID: 26095441 DOI: 10.1016/j.biopsycho.2015.06.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 05/07/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
"Excessive" viewing of visual sexual stimuli (VSS) is the most commonly reported hypersexual behavior problem and is especially amenable to laboratory study. A pattern of enhanced sexual cue responsiveness is expected in this sample if hypersexuality shares features of other addiction models. Participants (N=122) who either reported or denied problematic VSS use were presented with emotional, including explicit sexual, images while their evoked response potentials were recorded. An interaction of hypersexual problem group and the level of desire for sex with a partner predicted LPP amplitude. Specifically, those reporting problems regulating their VSS use who also reported higher sexual desire had lower LPP in response to VSS. This pattern appears different from substance addiction models. These are the first functional physiological data of persons reporting VSS regulation problems.
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Affiliation(s)
| | - Vaughn R Steele
- The Mind Research Network, University of New Mexico, Albuquerque, NM, USA
| | | | | | - Greg Hajcak
- Stony Brook University, Stony Brook, NY, USA
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46
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Ito A, Abe N, Kawachi Y, Kawasaki I, Ueno A, Yoshida K, Sakai S, Matsue Y, Fujii T. Distinct neural correlates of the preference-related valuation of supraliminally and subliminally presented faces. Hum Brain Mapp 2015; 36:2865-77. [PMID: 25880023 DOI: 10.1002/hbm.22813] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 12/19/2022] Open
Abstract
Recent neuroimaging studies have investigated the neural substrates involved in the valuation of supraliminally presented targets and the subsequent preference decisions. However, the neural mechanisms of the valuation of subliminally presented targets, which can guide subsequent preference decisions, remain to be explored. In the present study, we determined whether the neural systems associated with the valuation of supraliminally presented faces are involved in the valuation of subliminally presented faces. The subjects were supraliminally and subliminally presented with faces during functional magnetic resonance imaging (fMRI). Following fMRI, the subjects were presented with pairs of faces and were asked to choose which face they preferred. We analyzed brain activation by back-sorting the fMRI data according to the subjects' choices. The present study yielded two main findings. First, the ventral striatum and the ventromedial prefrontal cortex predict preferences only for supraliminally presented faces. Second, the dorsomedial prefrontal cortex may predict preferences for subliminally presented faces. These findings indicate that neural correlates of the preference-related valuation of faces are dissociable, contingent upon whether the subjects consciously perceive the faces.
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Affiliation(s)
- Ayahito Ito
- Kokoro Research Center, Kyoto University, Kyoto, Japan.,Japan Society for the Promotion of Science (JSPS), Tokyo, Japan
| | - Nobuhito Abe
- Kokoro Research Center, Kyoto University, Kyoto, Japan
| | - Yousuke Kawachi
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai, Japan
| | - Iori Kawasaki
- Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Aya Ueno
- Japan Society for the Promotion of Science (JSPS), Tokyo, Japan.,Division of Systems Neuroscience, Tohoku University Graduate School of Life Sciences, Sendai, Japan
| | - Kazuki Yoshida
- Division of Health Sciences, Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Shinya Sakai
- Department of Functioning and Disability, Faculty of Health Science, Hokkaido University, Sapporo, Japan
| | - Yoshihiko Matsue
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai, Japan
| | - Toshikatsu Fujii
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai, Japan
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47
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Georgiadis JR. Functional neuroanatomy of human cortex cerebri in relation to wanting sex and having it. Clin Anat 2015; 28:314-23. [DOI: 10.1002/ca.22528] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 01/27/2015] [Indexed: 12/29/2022]
Affiliation(s)
- Janniko R. Georgiadis
- Department of Neuroscience/Section Anatomy; University Medical Center Groningen (UMCG), University of Groningen; The Netherlands
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48
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Predictions and the brain: how musical sounds become rewarding. Trends Cogn Sci 2015; 19:86-91. [DOI: 10.1016/j.tics.2014.12.001] [Citation(s) in RCA: 200] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 11/24/2014] [Accepted: 12/01/2014] [Indexed: 11/27/2022]
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49
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Affiliation(s)
- Bedriye Öncü
- Department of Psychiatry, Ankara University, Ankara, Turkey
| | - Burçin Çolak
- Department of Psychiatry, Ankara University, Ankara, Turkey
| | - Okan Er
- Department of Psychiatry, Ankara University, Ankara, Turkey
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50
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Graf H, Wiegers M, Metzger CD, Walter M, Grön G, Abler B. Erotic stimulus processing under amisulpride and reboxetine: a placebo-controlled fMRI study in healthy subjects. Int J Neuropsychopharmacol 2015; 18:pyu004. [PMID: 25612894 PMCID: PMC4368880 DOI: 10.1093/ijnp/pyu004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Impaired sexual function is increasingly recognized as a side effect of psychopharmacological treatment. However, underlying mechanisms of action of the different drugs on sexual processing are still to be explored. Using functional magnetic resonance imaging, we previously investigated effects of serotonergic (paroxetine) and dopaminergic (bupropion) antidepressants on sexual functioning (Abler et al., 2011). Here, we studied the impact of noradrenergic and antidopaminergic medication on neural correlates of visual sexual stimulation in a new sample of subjects. METHODS Nineteen healthy heterosexual males (mean age 24 years, SD 3.1) under subchronic intake (7 days) of the noradrenergic agent reboxetine (4 mg/d), the antidopaminergic agent amisulpride (200mg/d), and placebo were included and studied with functional magnetic resonance imaging within a randomized, double-blind, placebo-controlled, within-subjects design during an established erotic video-clip task. Subjective sexual functioning was assessed using the Massachusetts General Hospital-Sexual Functioning Questionnaire. RESULTS Relative to placebo, subjective sexual functioning was attenuated under reboxetine along with diminished neural activations within the caudate nucleus. Altered neural activations correlated with decreased sexual interest. Under amisulpride, neural activations and subjective sexual functioning remained unchanged. CONCLUSIONS In line with previous interpretations of the role of the caudate nucleus in the context of primary reward processing, attenuated caudate activation may reflect detrimental effects on motivational aspects of erotic stimulus processing under noradrenergic agents.
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Affiliation(s)
- Heiko Graf
- Department of Psychiatry III, Ulm University, Ulm, Germany (Drs Graf, Wiegers, Grön, and Abler); Department of Psychiatry, Otto von Guericke University, Magdeburg, Germany (Drs Metzger and Walter); Leibniz Institute for Neurobiology, Magdeburg, Germany (Drs Metzger and Walter).
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