101
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Miquel M, Nicola SM, Gil-Miravet I, Guarque-Chabrera J, Sanchez-Hernandez A. A Working Hypothesis for the Role of the Cerebellum in Impulsivity and Compulsivity. Front Behav Neurosci 2019; 13:99. [PMID: 31133834 PMCID: PMC6513968 DOI: 10.3389/fnbeh.2019.00099] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 04/23/2019] [Indexed: 12/27/2022] Open
Abstract
Growing evidence associates cerebellar abnormalities with several neuropsychiatric disorders in which compulsive symptomatology and impulsivity are part of the disease pattern. Symptomatology of autism, addiction, obsessive-compulsive (OCD), and attention deficit/hyperactivity (ADHD) disorders transcends the sphere of motor dysfunction and essentially entails integrative processes under control of prefrontal-thalamic-cerebellar loops. Patients with brain lesions affecting the cortico-striatum thalamic circuitry and the cerebellum indeed exhibit compulsive symptoms. Specifically, lesions of the posterior cerebellar vermis cause affective dysregulation and deficits in executive function. These deficits may be due to impairment of one of the main functions of the cerebellum, implementation of forward internal models of the environment. Actions that are independent of internal models may not be guided by predictive relationships or a mental representation of the goal. In this review article, we explain how this deficit might affect executive functions. Additionally, regionalized cerebellar lesions have been demonstrated to impair other brain functions such as the emergence of habits and behavioral inhibition, which are also altered in compulsive disorders. Similar to the infralimbic cortex, clinical studies and research in animal models suggest that the cerebellum is not required for learning goal-directed behaviors, but it is critical for habit formation. Despite this accumulating data, the role of the cerebellum in compulsive symptomatology and impulsivity is still a matter of discussion. Overall, findings point to a modulatory function of the cerebellum in terminating or initiating actions through regulation of the prefrontal cortices. Specifically, the cerebellum may be crucial for restraining ongoing actions when environmental conditions change by adjusting prefrontal activity in response to the new external and internal stimuli, thereby promoting flexible behavioral control. We elaborate on this explanatory framework and propose a working hypothesis for the involvement of the cerebellum in compulsive and impulsive endophenotypes.
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Affiliation(s)
- Marta Miquel
- Área de Psicobiología, School of Health Science, Universitat Jaume I, Castellón de la Plana, Spain
| | - Saleem M Nicola
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Isis Gil-Miravet
- Área de Psicobiología, School of Health Science, Universitat Jaume I, Castellón de la Plana, Spain
| | - Julian Guarque-Chabrera
- Área de Psicobiología, School of Health Science, Universitat Jaume I, Castellón de la Plana, Spain
| | - Aitor Sanchez-Hernandez
- Área de Psicobiología, School of Health Science, Universitat Jaume I, Castellón de la Plana, Spain
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102
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D2 receptors and cognitive flexibility in marmosets: tri-phasic dose-response effects of intra-striatal quinpirole on serial reversal performance. Neuropsychopharmacology 2019; 44:564-571. [PMID: 30487652 PMCID: PMC6333796 DOI: 10.1038/s41386-018-0272-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 09/30/2018] [Accepted: 10/24/2018] [Indexed: 12/13/2022]
Abstract
Behavioral flexibility, which allows organisms to adapt their actions in response to environmental changes, is impaired in a number of neuropsychiatric conditions, including obsessive-compulsive disorder and addiction. Studies in human subjects and monkeys have reported correlations between individual differences in dopamine D2-type receptor (D2R) levels in the caudate nucleus and performance in a discrimination reversal task, in which established contingent relationships between abstract stimuli and rewards (or punishments) are reversed. Global genetic deletion of the D2R in mice disrupts reversal performance, indicating a likely causal role for this receptor in supporting flexible behaviors. To directly examine the specific role of caudate D2-type receptors in reversal performance, the D2/3/4R agonist quinpirole was infused via chronic indwelling cannulae into the medial caudate of male and female marmoset monkeys performing a touchscreen-based serial discrimination reversal task. Given prior evidence for dose-dependent effects of quinpirole and other dopaminergic drugs, a full dose-response curve was established. Individually, marmosets displayed marked differences in behavioral sensitivity to specific doses of intra-caudate quinpirole. Collectively, they exhibited a behaviorally specific bi-phasic deficit in reversal learning, being consistently impaired at both relatively low and high doses of quinpirole. However, intermediate doses of intra-caudate quinpirole produced significant improvement in reversal performance. These data support previous human and monkey neuroimaging studies by providing causal evidence of a U-shaped function describing how dopamine modulates cognitive flexibility in the primate striatum.
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103
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Luca A, Nicoletti A, Mostile G, Zappia M. The Parkinsonian Personality: More Than Just a "Trait". Front Neurol 2019; 9:1191. [PMID: 30697187 PMCID: PMC6340987 DOI: 10.3389/fneur.2018.01191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 12/27/2018] [Indexed: 11/30/2022] Open
Affiliation(s)
- Antonina Luca
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate "G.F. Ingrassia", Università degli Studi di Catania, Catania, Italy
| | - Alessandra Nicoletti
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate "G.F. Ingrassia", Università degli Studi di Catania, Catania, Italy
| | - Giovanni Mostile
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate "G.F. Ingrassia", Università degli Studi di Catania, Catania, Italy
| | - Mario Zappia
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate "G.F. Ingrassia", Università degli Studi di Catania, Catania, Italy
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104
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Wood J, LaPalombara Z, Ahmari SE. Monoamine abnormalities in the SAPAP3 knockout model of obsessive-compulsive disorder-related behaviour. Philos Trans R Soc Lond B Biol Sci 2019; 373:rstb.2017.0023. [PMID: 29352023 DOI: 10.1098/rstb.2017.0023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2017] [Indexed: 01/05/2023] Open
Abstract
Obsessive-compulsive disorder (OCD) is a leading cause of illness-related disability, but the neural mechanisms underlying OCD symptoms are unclear. One potential mechanism of OCD pathology is monoamine dysregulation. Because of the difficulty of studying monoamine signalling in patients, animal models offer a viable alternative to understanding this aspect of OCD pathophysiology. We used HPLC to characterize post-mortem monoamine levels in lateral orbitofrontal cortex (OFC), medial OFC, medial prefrontal cortex and dorsal and ventral striatum of SAPAP-3 knockout (KO) mice, a well-validated model of compulsive-like behaviours in OCD. As predicted from previous studies, excessive grooming was significantly increased in SAPAP-3 KO mice. Overall levels of the serotonin metabolite 5-hydroxyindoleacetic acid (HIAA) and the ratio of 5HIAA/serotonin (serotonin turnover) were increased in all cortical and striatal regions examined. In addition, dihydroxyphenylacetic acid/dopamine ratio was increased in lateral OFC, and HVA/dopamine ratio was increased in lateral and medial OFC. No baseline differences in serotonin or dopamine tissue content were observed. These data provide evidence of monoaminergic dysregulation in a translational model of OCD symptoms and are consistent with aberrant cortical and striatal serotonin and dopamine release/metabolism in SAPAP-3 KO mice. These results are guiding ongoing experiments using circuit and cell-type specific manipulations of dopamine and serotonin to determine the contributions of these monoaminergic systems to compulsive behaviours, and serve here as a touchstone for an expanded discussion of these techniques for precise circuit dissection.This article is part of the discussion meeting issue 'Of mice and mental health: facilitating dialogue between basic and clinical neuroscientists'.
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Affiliation(s)
- Jesse Wood
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA.,Center for Neuroscience Program and Center for the Neural Basis of Cognition, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA
| | - Zoe LaPalombara
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA.,Center for Neuroscience Program and Center for the Neural Basis of Cognition, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA
| | - Susanne E Ahmari
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA .,Center for Neuroscience Program and Center for the Neural Basis of Cognition, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA
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105
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Järvinen A, Laine MK, Tikkanen R, Castrén ML. Beneficial Effects of GLP-1 Agonist in a Male With Compulsive Food-Related Behavior Associated With Autism. Front Psychiatry 2019; 10:97. [PMID: 30881319 PMCID: PMC6405420 DOI: 10.3389/fpsyt.2019.00097] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 02/11/2019] [Indexed: 11/22/2022] Open
Abstract
Individuals with autism spectrum disorder (ASD) frequently display intensely repetitive, restricted thoughts, and behaviors. These behaviors have similarities to compulsions and/or obsessions in obsessive compulsive disorder (OCD) and are primarily treated with behaviourally-based interventions and serotonin uptake inhibitors (SSRIs). Due to the lack of treatment responses in many cases, however, new treatments are being sought. Here we report beneficial effects of treatment with liraglutide, a glucagon-like peptide-1 (GLP-1) analog, on severe obsessive food craving, binge eating, weight gain, and behavioral problems in an adolescent male with infantile autism and moderate intellectual impairment. Liraglutide treatment reduced weight and unwanted behavior seemingly by preventing food-related repetitive thoughts and compulsions. Our report provides clinical evidence that GLP-1 signaling pathway may represent a novel target for treating food-related behavioral problems and aggressive behavior in ASD.
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Affiliation(s)
| | | | - Roope Tikkanen
- Department of Psychiatry, University of Helsinki, Helsinki, Finland
| | - Maija L Castrén
- Autism Foundation, Helsinki, Finland.,Department of Physiology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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106
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Pinhal CM, van den Boom BJG, Santana-Kragelund F, Fellinger L, Bech P, Hamelink R, Feng G, Willuhn I, Feenstra MGP, Denys D. Differential Effects of Deep Brain Stimulation of the Internal Capsule and the Striatum on Excessive Grooming in Sapap3 Mutant Mice. Biol Psychiatry 2018; 84:917-925. [PMID: 29954580 DOI: 10.1016/j.biopsych.2018.05.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND Deep brain stimulation (DBS) is an effective treatment for patients with obsessive-compulsive disorder (OCD) that do not respond to conventional therapies. Although the precise mechanism of action of DBS remains unknown, modulation of activity in corticofugal fibers originating in the prefrontal cortex is thought to underlie its beneficial effects in OCD. METHODS To gain more mechanistic insight into DBS in OCD, we used Sapap3 mutant mice. These mice display excessive self-grooming and increased anxiety, both of which are responsive to therapeutic drugs used in OCD patients. We selected two clinically relevant DBS targets through which activity in prefronto-corticofugal fibers may be modulated: the internal capsule (IC) and the dorsal part of the ventral striatum (dVS). RESULTS IC-DBS robustly decreased excessive grooming, whereas dVS-DBS was on average less effective. Grooming was reduced rapidly after IC-DBS onset and reinstated upon DBS offset. Only IC-DBS was associated with increased locomotion. DBS in both targets induced c-Fos expression around the electrode tip and in different regions of the prefrontal cortex. This prefronto-cortical activation was more extensive after IC-DBS, but not associated with behavioral effects. Furthermore, we found that the decline in grooming cannot be attributed to altered locomotor activity and that anxiety, measured on the elevated plus maze, was not affected by DBS. CONCLUSIONS DBS in both the IC and dVS reduces compulsive grooming in Sapap3 mutant mice. However, IC stimulation was more effective, but also produced motor activation, even though both DBS targets modulated activity in a similar set of prefrontal cortical fibers.
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Affiliation(s)
- Cindy M Pinhal
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Bastijn J G van den Boom
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Fabiana Santana-Kragelund
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Lizz Fellinger
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Pol Bech
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Ralph Hamelink
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Guoping Feng
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Ingo Willuhn
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
| | - Matthijs G P Feenstra
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Damiaan Denys
- Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
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107
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Determinants of binge eating disorder among normal weight and overweight female college students in Korea. Eat Weight Disord 2018; 23:849-860. [PMID: 30196529 DOI: 10.1007/s40519-018-0574-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 09/03/2018] [Indexed: 10/28/2022] Open
Abstract
PURPOSE The aim of the present study was to describe the clinical features of binge eating disorder (BED) in normal weight and overweight undergraduate Korean women. METHODS 117 overweight (BMI ≥ 25 kg/m2) and 346 normal weight (18 kg/m2 ≤ BMI < 25 kg/m2) undergraduate Korean women completed questionnaires to assess for BED. Their emotional eating behaviors, binge eating-related behaviors, a spectrum of compulsive behaviors such as substance abuse and obsessive-compulsive disorder, and psychological profiles were evaluated through personal interviews and questionnaires. The features of those with BED were compared to those without BED in the overweight and normal weight groups. RESULTS Both normal weight and overweight BED women had higher levels of functional impairment, eating disorder psychopathology including emotional and external eating behaviors, and neuroticism than their non-BED counterparts. In the normal weight group, BED women had more frequent alcohol consumption and obsessive-compulsive symptoms than non-BED women. In the overweight group, BED women had higher levels of depression and lower extraversion than non-BED women. CONCLUSIONS BED is associated with global functional impairment and mental health problems. Thus, the association with high functional impairments and psychiatric comorbidities suggest that people with BED may benefit from treatment. LEVEL III Evidence obtained from well-designed case-control analytic studies, from more than one center.
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108
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Rodríguez-Ortega E, Cubero I. Environmental Enrichment Modulates Drug Addiction and Binge-Like Consumption of Highly Rewarding Substances: A Role for Anxiety and Compulsivity Brain Systems? Front Behav Neurosci 2018; 12:295. [PMID: 30555310 PMCID: PMC6281824 DOI: 10.3389/fnbeh.2018.00295] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 11/15/2018] [Indexed: 01/09/2023] Open
Abstract
Drug addiction is a chronic disorder comprising components of both impulsivity and compulsivity in the so called “addiction cycle” which develops over time from early non-dependent, repetitive, binge-consumption to later post-dependent compulsive consumption. Thus, frequent binge-like intake is a typical pattern of excessive drug intake characteristic of the pre-dependent phase of the addiction cycle, which represent an important risk factor to develop addiction in vulnerable individuals. In this framework, it is of paramount interest to further understand the earliest stage of the addiction cycle so novel approaches would emerge aimed to control repetitive episodes of binge-consumption in non-dependent subjects, protecting vulnerable individuals from transition to dependence. Environmental enrichment (EE) is a preclinical animal model in which animals are housed under novel, social enriched conditions, which allows exercising and provides sensory and cognitive stimulation. EE promotes important improvements for a variety of cognitive processes and clear therapeutic and protective effects preventing ethanol (EtOH) and drug addiction as well. Interestingly, recent observations suggest that EE might additionally modulate binge-like intake of highly palatable caloric substances, including EtOH, which suggests the ability of EE to regulate consumption during the initial stage of the addiction cycle. We have proposed that EE protective and therapeutic effects on binge-consumption of palatable substances might primarily be mediated by the modulatory control that EE exerts on anxiety and impulsivity/compulsivity traits, which are all risk factors favoring transition to drug addiction.
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Affiliation(s)
| | - Inmaculada Cubero
- Departamento de Psicología, Universidad de Almería, Almería, Spain.,Centro de Evaluación y Rehabilitación Neuropsicológica (CERNEP), Universidad de Almería, Almería, Spain
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109
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Defining Dysbiosis in Disorders of Movement and Motivation. J Neurosci 2018; 38:9414-9422. [PMID: 30381433 PMCID: PMC6209841 DOI: 10.1523/jneurosci.1672-18.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 09/28/2018] [Accepted: 09/28/2018] [Indexed: 02/06/2023] Open
Abstract
The gut microbiota has emerged as a critical player in shaping and modulating brain function and has been shown to influence numerous behaviors, including anxiety and depression-like behaviors, sociability, and cognition. However, the effects of the gut microbiota on specific disorders associated with thalamo-cortico-basal ganglia circuits, ranging from compulsive behavior and addiction to altered sensation and motor output, are only recently being explored. Wholesale depletion and alteration of gut microbial communities in rodent models of disorders, such as Parkinson's disease, autism, and addiction, robustly affect movement and motivated behavior. A new frontier therefore lies in identifying specific microbial alterations that affect these behaviors and understanding the underlying mechanisms of action. Comparing alterations in gut microbiota across multiple basal-ganglia associated disease states allows for identification of common mechanistic pathways that may interact with distinct environmental and genetic risk factors to produce disease-specific outcomes.
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110
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Rodríguez-Ortega E, de la Fuente L, de Amo E, Cubero I. Environmental Enrichment During Adolescence Acts as a Protective and Therapeutic Tool for Ethanol Binge-Drinking, Anxiety-Like, Novelty Seeking and Compulsive-Like Behaviors in C57BL/6J Mice During Adulthood. Front Behav Neurosci 2018; 12:177. [PMID: 30177875 PMCID: PMC6110170 DOI: 10.3389/fnbeh.2018.00177] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/30/2018] [Indexed: 12/21/2022] Open
Abstract
Repetitive drug/ethanol (EtOH) binge-like consumption during pre-addictive stages favors a transition to addiction in vulnerable organisms. Experimental evidence points to the therapeutic and preventive effects of environmental enrichment (EE) on drug and EtOH addiction; however, little is known regarding EE modulation of binge-like consumption in non-dependent organisms. Here, we explore the impact of early EE on binge-like EtOH consumption: (1) we test whether early EE exposure prevents binge-like EtOH intake (20% v/v) in adult mice under an intermittent drinking in the dark (iDID) schedule; (2) we evaluate the therapeutic effects of EE housing conditions on binge-like EtOH consumption in adult animals; and (3) we compare novelty-seeking and compulsive-like behaviors, and anxiety-like behavior, as measured by the Hole Board (HB) and Elevated Plus Maze (EPM) tests, respectively, in adult EE/standard environment (SE) animals. Adolescent (postnatal day 28; PND28) mice were randomly allocated to two housing conditions (4 animals/cage): EE or SE. At PND67 all the animals were exposed to a schedule of EtOH binge-like iDID. On PND92 half of the animals in each environmental condition (EE and SE) were randomly allocated to two subgroups in a crossover design, where environmental conditions were kept similar to those previously experienced or switched, finally leading to four experimental conditions: EE-EE, EE-SE, SE-SE, and SE-EE. EtOH binge-like consumption continued until PND140, when EPM and HB tests were finally conducted. The main observations were: (1) EE-reared mice showed lower EtOH binge-like intake than SE-reared mice during adulthood, which supports a protective role for EE. (2) when adult EtOH drinking SE-reared mice were switched to EE conditions, a reduction in EtOH binge-like consumption was observed, suggesting a therapeutic role for EE; however, losing EE during adulthood triggered a progressive increase in EtOH binge-like intake. Moreover, (3) EE-housed adult animals with long-term exposure to EtOH binge-drinking showed lower anxiety-like, compulsive-like, and novelty-seeking behaviors than SE-housed mice, irrespective of the specific housing conditions during adolescence. We discuss the primary impact of EE on anxiety-like neurobehavioral brain systems through which it secondarily modulates EtOH binge-like drinking.
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Affiliation(s)
| | | | - Enedina de Amo
- Departmento de Psicología, Universidad de Almería, Almería, Spain
| | - Inmaculada Cubero
- Departmento de Psicología, Universidad de Almería, Almería, Spain.,CERNEP, Universidad de Almería, Almería, Spain
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111
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Piantadosi PT, Yeates DC, Floresco SB. Cooperative and dissociable involvement of the nucleus accumbens core and shell in the promotion and inhibition of actions during active and inhibitory avoidance. Neuropharmacology 2018; 138:57-71. [DOI: 10.1016/j.neuropharm.2018.05.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/07/2018] [Accepted: 05/21/2018] [Indexed: 11/28/2022]
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112
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Diehl MM, Lempert KM, Parr AC, Ballard I, Steele VR, Smith DV. Toward an integrative perspective on the neural mechanisms underlying persistent maladaptive behaviors. Eur J Neurosci 2018; 48:1870-1883. [PMID: 30044022 PMCID: PMC6113118 DOI: 10.1111/ejn.14083] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 06/13/2018] [Accepted: 06/26/2018] [Indexed: 01/29/2023]
Affiliation(s)
- Maria M. Diehl
- Department of Psychiatry, University of Puerto Rico School of Medicine, San Juan, PR 00936
| | - Karolina M. Lempert
- Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104
| | - Ashley C. Parr
- Centre for Neuroscience Studies, Queen’s University, Kingston, Ontario
| | - Ian Ballard
- Neurosciences Graduate Training Program, Stanford University, Stanford, CA 94305
| | - Vaughn R. Steele
- Neuroimaging Research Branch, National Institute on Drug Abuse, Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
| | - David V. Smith
- Department of Psychology, Temple University, Philadelphia, PA 19122
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113
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Jean-Richard-Dit-Bressel P, Killcross S, McNally GP. Behavioral and neurobiological mechanisms of punishment: implications for psychiatric disorders. Neuropsychopharmacology 2018; 43:1639-1650. [PMID: 29703994 PMCID: PMC6006171 DOI: 10.1038/s41386-018-0047-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/27/2018] [Accepted: 03/05/2018] [Indexed: 02/08/2023]
Abstract
Punishment involves learning about the relationship between behavior and its adverse consequences. Punishment is fundamental to reinforcement learning, decision-making and choice, and is disrupted in psychiatric disorders such as addiction, depression, and psychopathy. However, little is known about the brain mechanisms of punishment and much of what is known is derived from study of superficially similar, but fundamentally distinct, forms of aversive learning such as fear conditioning and avoidance learning. Here we outline the unique conditions that support punishment, the contents of its learning, and its behavioral consequences. We consider evidence implicating GABA and monoamine neurotransmitter systems, as well as corticostriatal, amygdala, and dopamine circuits in punishment. We show how maladaptive punishment processes are implicated in addictions, impulse control disorders, psychopathy, anxiety, and depression and argue that a better understanding of the cellular, circuit, and cognitive mechanisms of punishment will make important contributions to next generation therapeutic approaches.
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114
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Nunes-Neto PR, Köhler CA, Schuch FB, Quevedo J, Solmi M, Murru A, Vieta E, Maes M, Stubbs B, Carvalho AF. Psychometric properties of the modified Yale Food Addiction Scale 2.0 in a large Brazilian sample. ACTA ACUST UNITED AC 2018; 40:444-448. [PMID: 29898195 PMCID: PMC6899372 DOI: 10.1590/1516-4446-2017-2432] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 12/05/2017] [Indexed: 11/22/2022]
Abstract
Objective: The field of food addiction has attracted growing research attention. The modified Yale Food Addiction Scale 2.0 (mYFAS 2.0) is a screening tool based on DSM-5 criteria for substance use disorders. However, there is no validated instrument to assess food addiction. Methods: The mYFAS 2.0 has been transculturally adapted to Brazilian Portuguese. The data for this study was obtained through an anonymous web-based research platform: participants provided sociodemographic data and answered Brazilian versions of the the mYFAS 2.0 and the Barratt Impulsivity Scale (BIS-11). Analysis included an assessment of the Brazilian mYFAS 2.0’s internal consistency reliability, factor structure, and convergent validity in relation to BIS-11 scores. Results: Overall, 7,639 participants were included (71.3% females; age: 27.2±7.9 years). The Brazilian mYFAS 2.0 had adequate internal consistency reliability (Cronbach’s alpha = 0.89). A single factor solution yielded the best goodness-of-fit parameters for both the continuous and categorical version of the mYFAS 2.0 in confirmatory factor analysis. In addition, mYFAS 2.0 correlated with BIS-11 total scores (Spearman’s rho = 0.26, p < 0.001) and subscores. Conclusion: The Brazilian mYFAS 2.0 demonstrated adequate psychometric properties in our sample; however, future studies should further evaluate its discriminant validity.
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Affiliation(s)
- Paulo R Nunes-Neto
- Departamento de Medicina Clínica e Grupo de Pesquisa em Psiquiatria Translacional, Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | - Cristiano A Köhler
- Departamento de Medicina Clínica e Grupo de Pesquisa em Psiquiatria Translacional, Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | - Felipe B Schuch
- Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Saúde e Desenvolvimento Humano, Universidade La Salle, Canoas, RS, Brazil
| | - João Quevedo
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade de Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil.,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, UTHealth, Houston, TX, USA.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center, UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Marco Solmi
- Neuroscience Department, University of Padua, Padova, Italy.,Institute for Clinical Research and Education in Medicine (IREM), Padua, Italy
| | - Andrea Murru
- Bipolar Disorders Unit, Institute of Neuroscience, Hospital Clínic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Eduard Vieta
- Bipolar Disorders Unit, Institute of Neuroscience, Hospital Clínic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,IMPACT Research Center, Deakin University, Geelong, Australia
| | - Brendon Stubbs
- Institute for Clinical Research and Education in Medicine (IREM), Padua, Italy.,South London and Maudsley NHS Foundation Trust, London, United Kingdom.,Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London United Kingdom.,Faculty of Health, Social Care and Education, Anglia Ruskin University, Chelmsford, United Kingdom
| | - André F Carvalho
- Institute for Clinical Research and Education in Medicine (IREM), Padua, Italy.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Centre for Addiction and Mental Health (CAMH), Toronto, ON, Canada
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115
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Treasure J, Leslie M, Chami R, Fernández-Aranda F. Are trans diagnostic models of eating disorders fit for purpose? A consideration of the evidence for food addiction. EUROPEAN EATING DISORDERS REVIEW 2018; 26:83-91. [DOI: 10.1002/erv.2578] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Janet Treasure
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience; King's College London; London UK
| | - Monica Leslie
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience; King's College London; London UK
| | - Rayane Chami
- Section of Eating Disorders, Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience; King's College London; London UK
| | - Fernando Fernández-Aranda
- Eating Disorders Unit, Department of Psychiatry; University Hospital of Bellvitge and CIBERobn (ISCIII); Barcelona Spain
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116
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Nunes-Neto PR, Köhler CA, Schuch FB, Solmi M, Quevedo J, Maes M, Murru A, Vieta E, McIntyre RS, McElroy SL, Gearhardt AN, Stubbs B, Carvalho AF. Food addiction: Prevalence, psychopathological correlates and associations with quality of life in a large sample. J Psychiatr Res 2018; 96:145-152. [PMID: 29049971 DOI: 10.1016/j.jpsychires.2017.10.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 10/05/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To determine the prevalence of food addiction in a large Brazilian non-clinical sample. Sociodemographic and psychopathological correlates of food addiction as well as associations with quality (QoL) domains were also investigated. METHODS This cross-sectional study obtained data from a Brazilian anonymous web-based research platform (N = 7639; 71.3% females). Participants provided sociodemographic data and completed the modified Yale Food Addiction Scale 2.0, PHQ-9, hypomania checklist (HCL-32), Fagerström Test for Nicotine Dependence, AUDIT, modified Skin picking-Stanford questionnaire, Minnesota impulsive disorders interview, Symptom Checklist-90-Revised inventory (SCL-90R), early trauma inventory self report-short form, and the WHO Quality of Life instrument-Abbreviated version (WHOQOL-Bref). Associations were adjusted to potential confounders through multivariable models. RESULTS The prevalence of food addiction was 4.32% (95%CI: 3.89-4.80%), and was more common among females. Food addiction was associated with a positive screen for a major depressive episode (OR = 4.41; 95%CI: 3.46-5.62), bipolar spectrum disorder (OR = 1.98; 95%CI: 1.43-2.75), and skin picking disorder (OR = 2.02; 95%CI: 1.31-3.09). Food addiction was also independently associated with exposure to early life psychological and sexual abuse (P = 0.008) as well as with reduced physical, psychological, social, and environment QoL (all P < 0.001). CONCLUSIONS Food addiction may be common in low and middle-income countries, though possibly less prevalent than in the US. Food addiction was associated with co-occurring mood disorders and skin picking disorder as well as with early life psychological and sexual abuse. Finally, food addiction was independently associated with broad reductions in QoL. Public health efforts towards the early recognition and management of food addiction are warranted.
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Affiliation(s)
- Paulo R Nunes-Neto
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Cristiano A Köhler
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Felipe B Schuch
- Mestrado em Saúde e Desenvolvimento Humano, Universidade La Salle, Canoas, RS, Brazil; Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Marco Solmi
- Neuroscience Department, University of Padua, Padova, Italy; Institute for Clinical Research and Education in Medicine (IREM), Padua, Italy
| | - João Quevedo
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA; Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil; Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA; Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; IMPACT Research Center, Deakin University, Geelong, Australia
| | - Andrea Murru
- Bipolar Disorders Unit, Institute of Neuroscience, Hospital Clínic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Eduard Vieta
- Bipolar Disorders Unit, Institute of Neuroscience, Hospital Clínic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Roger S McIntyre
- Department of Psychiatry, University of Toronto, Ontario, Canada; Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada; Department of Pharmacology, University of Toronto, Ontario, Canada
| | - Susan L McElroy
- Lindner Center of HOPE, Mason, OH, USA; University of Cincinnati College of Medicine Department of Psychiatry and Behavioral Neuroscience, Cincinnati, OH, USA
| | | | - Brendon Stubbs
- Institute for Clinical Research and Education in Medicine (IREM), Padua, Italy; South London and Maudsley NHS Foundation Trust, Denmark Hill, London, SE5 8AZ, United Kingdom;; Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, De Crespigny Park, London, SE5 8 AF, United Kingdom; Faculty of Health, Social Care and Education, Anglia Ruskin University, Chelmsford, CM1 1SQ, United Kingdom
| | - André F Carvalho
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Institute for Clinical Research and Education in Medicine (IREM), Padua, Italy.
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117
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Therapeutic challenges in comorbid obsessive compulsive disorder with substance use. Asian J Psychiatr 2018; 31:127-128. [PMID: 29482123 DOI: 10.1016/j.ajp.2018.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 02/03/2018] [Indexed: 11/21/2022]
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118
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Carlisi CO, Norman L, Murphy CM, Christakou A, Chantiluke K, Giampietro V, Simmons A, Brammer M, Murphy DG, Mataix-Cols D, Rubia K. Comparison of neural substrates of temporal discounting between youth with autism spectrum disorder and with obsessive-compulsive disorder. Psychol Med 2017; 47:2513-2527. [PMID: 28436342 PMCID: PMC5964452 DOI: 10.1017/s0033291717001088] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 03/10/2017] [Accepted: 03/29/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND Autism spectrum disorder (ASD) and obsessive-compulsive disorder (OCD) share abnormalities in hot executive functions such as reward-based decision-making, as measured in the temporal discounting task (TD). No studies, however, have directly compared these disorders to investigate common/distinct neural profiles underlying such abnormalities. We wanted to test whether reward-based decision-making is a shared transdiagnostic feature of both disorders with similar neurofunctional substrates or whether it is a shared phenotype with disorder-differential neurofunctional underpinnings. METHODS Age and IQ-matched boys with ASD (N = 20), with OCD (N = 20) and 20 healthy controls, performed an individually-adjusted functional magnetic resonance imaging (fMRI) TD task. Brain activation and performance were compared between groups. RESULTS Boys with ASD showed greater choice-impulsivity than OCD and control boys. Whole-brain between-group comparison revealed shared reductions in ASD and OCD relative to control boys for delayed-immediate choices in right ventromedial/lateral orbitofrontal cortex extending into medial/inferior prefrontal cortex, and in cerebellum, posterior cingulate and precuneus. For immediate-delayed choices, patients relative to controls showed reduced activation in anterior cingulate/ventromedial prefrontal cortex reaching into left caudate, which, at a trend level, was more decreased in ASD than OCD patients, and in bilateral temporal and inferior parietal regions. CONCLUSIONS This first fMRI comparison between youth with ASD and with OCD, using a reward-based decision-making task, shows predominantly shared neurofunctional abnormalities during TD in key ventromedial, orbital- and inferior fronto-striatal, temporo-parietal and cerebellar regions of temporal foresight and reward processing, suggesting trans-diagnostic neurofunctional deficits.
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Affiliation(s)
- C. O. Carlisi
- Department of Child and Adolescent
Psychiatry, Institute of Psychiatry, Psychology and Neuroscience,
King's College, London, UK
| | - L. Norman
- Department of Child and Adolescent
Psychiatry, Institute of Psychiatry, Psychology and Neuroscience,
King's College, London, UK
| | - C. M. Murphy
- Department of Child and Adolescent
Psychiatry, Institute of Psychiatry, Psychology and Neuroscience,
King's College, London, UK
- Department of Forensic and Neurodevelopmental
Sciences, Sackler Institute for Translational Neurodevelopmental
Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's
College, London, UK
- Behavioural Genetics Clinic, Adult Autism
Service, Behavioural and Developmental Psychiatry Clinical Academic
Group, South London and Maudsley Foundation NHS Trust,
London, UK
| | - A. Christakou
- Centre for Integrative Neuroscience and
Neurodynamics, School of Psychology and Clinical Language Sciences, University of
Reading, Reading, UK
| | - K. Chantiluke
- Department of Child and Adolescent
Psychiatry, Institute of Psychiatry, Psychology and Neuroscience,
King's College, London, UK
| | - V. Giampietro
- Department of Neuroimaging,
Institute of Psychiatry, Psychology and Neuroscience, King's
College, London, UK
| | - A. Simmons
- Department of Neuroimaging,
Institute of Psychiatry, Psychology and Neuroscience, King's
College, London, UK
- National Institute for Health Research (NIHR)
Biomedical Research Centre (BRC) for Mental Health at South London and Maudsley NHS
Foundation Trust and Institute of Psychiatry, Psychology & Neuroscience, King's
College London, London, UK
- Department of Neurobiology, Care Sciences and
Society, Center for Alzheimer Research, Division of Clinical
Geriatrics, Karolinska Institutet, Stockholm,
Sweden
| | - M. Brammer
- Department of Neuroimaging,
Institute of Psychiatry, Psychology and Neuroscience, King's
College, London, UK
| | - D. G. Murphy
- Department of Forensic and Neurodevelopmental
Sciences, Sackler Institute for Translational Neurodevelopmental
Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's
College, London, UK
- Behavioural Genetics Clinic, Adult Autism
Service, Behavioural and Developmental Psychiatry Clinical Academic
Group, South London and Maudsley Foundation NHS Trust,
London, UK
| | | | - D. Mataix-Cols
- Department of Clinical Neuroscience,
Centre for Psychiatry Research, Karolinska Institutet,
Stockholm, Sweden
| | - K. Rubia
- Department of Child and Adolescent
Psychiatry, Institute of Psychiatry, Psychology and Neuroscience,
King's College, London, UK
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119
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Lloyd EC, Frampton I, Verplanken B, Haase AM. How extreme dieting becomes compulsive: A novel hypothesis for the role of anxiety in the development and maintenance of anorexia nervosa. Med Hypotheses 2017; 108:144-150. [PMID: 29055388 DOI: 10.1016/j.mehy.2017.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 08/22/2017] [Accepted: 09/03/2017] [Indexed: 02/07/2023]
Abstract
The US National Institute of Mental Health's Research Domain Criteria (NIMH RDoC) advocates the study of features common to psychiatric conditions. This transdiagnostic approach has recently been adopted into the study of anorexia nervosa (AN), an illness that can be considered compulsive in nature. This has led to the development of an account of AN that identifies key roles for the heightened reinforcement of starvation, leading to its excessive repetition, and goal-directed system dysfunction. Considering models of illness in other compulsive disorders, we extend the existing account to explain the emergence of reinforcement and goal-directed system abnormalities in AN, proposing that anxiety is central to both processes. As such we emphasise the particular importance of the anxiolytic effects of starvation, over other reinforcing outcomes, in encouraging the continuation of starvation within a model that proposes a number of mechanisms by which anxiety operates in the development and maintenance of AN. We suggest the psychopathology of AN mediates the relationship between the anxiolytic effects of starvation and excessive repetition of starvation, and that compulsive starvation has reciprocal effects on its determinants. We thus account for the emergence of symptoms of AN other than compulsive starvation, and for the relationship between different features of the disorder. By extending and adapting an existing explanation of AN, we provide a richer aetiological model that invites new research questions and could inform novel approaches to prevention and treatment.
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Affiliation(s)
- E C Lloyd
- School of Exercise, Nutrition and Health Sciences, University of Bristol, 8 Priory Road, Bristol BS8 1TZ, UK.
| | - I Frampton
- Department of Psychology, Washington Singer Laboratories, University of Exeter, Perry Road, Prince of Wales Road, Exeter EX4 4QG, UK.
| | - B Verplanken
- Department of Psychology, 10 West, University of Bath, Bath BA2 7AY, UK.
| | - A M Haase
- School of Exercise, Nutrition and Health Sciences, University of Bristol, 8 Priory Road, Bristol BS8 1TZ, UK.
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120
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Contributions of basolateral amygdala and nucleus accumbens subregions to mediating motivational conflict during punished reward-seeking. Neurobiol Learn Mem 2017; 140:92-105. [DOI: 10.1016/j.nlm.2017.02.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/16/2017] [Accepted: 02/22/2017] [Indexed: 12/20/2022]
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121
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Schippers MC, Bruinsma B, Gaastra M, Mesman TI, Denys D, De Vries TJ, Pattij T. Deep Brain Stimulation of the Nucleus Accumbens Core Affects Trait Impulsivity in a Baseline-Dependent Manner. Front Behav Neurosci 2017; 11:52. [PMID: 28386221 PMCID: PMC5362621 DOI: 10.3389/fnbeh.2017.00052] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/07/2017] [Indexed: 12/29/2022] Open
Abstract
Deep brain stimulation (DBS) of the nucleus accumbens (NA) is explored as a treatment for refractory psychiatric disorders, such as obsessive-compulsive disorder (OCD), depressive disorder (MDD), and substance use disorder (SUD). A common feature of some of these disorders is pathological impulsivity. Here, the effects of NAcore DBS on impulsive choice and impulsive action, two distinct forms of impulsive behavior, were investigated in translational animal tasks, the delayed reward task (DRT) and five-choice serial reaction time task (5-CSRTT), respectively. In both tasks, the effects of NAcore DBS were negatively correlated with baseline impulsive behavior, with more pronounced effects in the 5-CSRTT. To further examine the effects of DBS on trait impulsive action, rats were screened for high (HI) and low (LI) impulsive responding in the 5-CSRTT. NAcore DBS decreased impulsive, premature responding in HI rats under conventional conditions. However, upon challenged conditions to increase impulsive responding, NAcore DBS did not alter impulsivity. These results strongly suggest a baseline-dependent effect of DBS on impulsivity, which is in line with clinical observations.
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Affiliation(s)
- Maria C Schippers
- Amsterdam Neuroscience, Department of Anatomy and Neurosciences, VU University Medical Center Amsterdam, Netherlands
| | - Bastiaan Bruinsma
- Amsterdam Neuroscience, Department of Anatomy and Neurosciences, VU University Medical Center Amsterdam, Netherlands
| | - Mathijs Gaastra
- Amsterdam Neuroscience, Department of Anatomy and Neurosciences, VU University Medical Center Amsterdam, Netherlands
| | - Tanja I Mesman
- Amsterdam Neuroscience, Department of Anatomy and Neurosciences, VU University Medical Center Amsterdam, Netherlands
| | - Damiaan Denys
- Amsterdam Neuroscience, Department of Psychiatry, Academic Medical Center, University of Amsterdam Amsterdam, Netherlands
| | - Taco J De Vries
- Amsterdam Neuroscience, Department of Anatomy and Neurosciences, VU University Medical Center Amsterdam, Netherlands
| | - Tommy Pattij
- Amsterdam Neuroscience, Department of Anatomy and Neurosciences, VU University Medical Center Amsterdam, Netherlands
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