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Behavioral Addiction

John R Fedota, Xiaoyu Ding, Allison L Matous, Betty Jo Salmeron, Michael R McKenna, Hong Gu, Thomas J Ross, Elliot A Stein
BACKGROUND: Insular subdivisions show distinct patterns of resting-state functional connectivity (rsFC) with specific brain regions, each with different functional significance. Seeds in these subdivisions are employed to characterize the effects of acute nicotine abstinence on rsFC between insula subdivisions and brain networks implicated in addiction and attentional control. METHODS: In a within-subjects design, resting-state blood oxygen level-dependent data were collected from treatment-seeking smokers (N= 20) following smoking satiety and again following 48 hours of nicotine abstinence...
February 2018: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
Jérôme Linden, Alexander S James, Colin McDaniel, J David Jentsch
Neuroimaging studies in animal models and human subjects have each revealed that relatively low striatal dopamine D2-like receptor binding potential is associated with poor impulse control and with vulnerability for addiction-related behaviors. These studies cannot, however, disambiguate the roles for various pools of D2 receptors found in the striatum (e.g., those expressed on medium spiny striato-pallidal neurons vs on dopamine-releasing nerve terminals) in these behavioral outcomes. To clarify the role of the latter pool, namely, D2 autoreceptors, we studied mice carrying a conditional DRD2 gene, with or without Cre-recombinase expressed under the transcriptional control of the dopamine transporter gene locus (autoDrd2-KO, n = 19 and controls, n = 21)...
January 2018: ENeuro
Nadia K Bisch, Taís de C Moreira, Mariana C Benchaya, Dan R Pozza, Larissa C N de Freitas, Michelle S Farias, Maristela Ferigolo, Helena M T Barros
AIM: To describe the users' drug abuse characteristics, problematic behaviors associated with addiction, the motivation of teenagers and young adults to quit cocaine and/or crack abuse, and then compare these characteristics. METHODS: A cross-section study was conducted with 2390 cocaine/crack users (teenagers from 14 to 19 years of age, and young adults from 20 to 24 years of age); 1471 were young adults and 919 were teenagers who had called a phone counseling service between January 2006 and December 2013...
March 8, 2018: Jornal de Pediatria
Meaghan Creed
Neuromodulation therapies such as deep brain stimulation or transcranial magnetic stimulation have shown promise in reducing symptoms of addiction when applied to the prefontal cortex, nucleus accumbens or subthalamic nucleus. Pre-clinical investigations implicate modulation of the cortico-basal ganglia network in these therapeutic effects, and this mechanistic understanding is necessary to optimize stimulation paradigms. Recently, the principle that neuromodulation can reverse drug-evoked synaptic plasticity and reduce behavioral symptoms of addiction has inspired novel stimulation paradigms that have long-term effects in animal models...
March 7, 2018: Current Opinion in Neurobiology
Jory Deleuze, Jiang Long, Tie-Qiao Liu, Pierre Maurage, Joël Billieux
A criticism of current diagnostic approaches to gaming disorder is that they fail to take into account that high and repeated engagement is not problematic per se, nor is it necessarily associated with adverse consequences. To tackle this controversy, we used Confirmatory Factor Analysis (CFA) to test, in regular gamers (N = 268), whether high (but healthy) engagement can be distinguished from problematic engagement by using the Addiction-Engagement Questionnaire (Charlton & Danforth, 2007). We then tested whether differential relationships exist between the engagement and addiction constructs, DSM-5 criteria for Internet gaming disorder (IGD), and psychological factors linked to gaming use and misuse (self-reported impulsivity, motives to play, and depression)...
February 27, 2018: Addictive Behaviors
Gareth Roderique-Davies, Robert M Heirene, Stephen Mellalieu, David A Shearer
Conceptual similarities have been identified between experiences of extreme sports athletes and those with drug and behavioral addictions. Evidence suggests rock climbers experience craving and other withdrawal-like states when abstinent from their sport. However, no studies have attempted to quantitatively measure the craving experienced by participants of any extreme sports. Such a measure could allow a greater understanding of the craving experienced by extreme sports athletes and a comparison of these across sports (e...
2018: Frontiers in Psychology
Jessica K Pepper, Matthew C Farrelly, Kimberly A Watson
INTRODUCTION: Nicotine harms adolescent brain development and contributes to addiction. Some adolescents report using nicotine-free e-cigarettes, but the accuracy of their reporting is unclear. We explored adolescents' use of nicotine-free e-cigarettes and understanding of chemicals in e-cigarettes, including nicotine. METHODS: Using social media, we recruited 1589 US adolescents (aged 15-17) who reported past 30-day use of e-cigarettes in 2016. We assessed perceptions of the nicotine source in e-liquid and whether e-cigarette aerosol is just "water vapor...
February 10, 2018: Addictive Behaviors
Robert K Doot, Jacob G Dubroff, Kyle J Labban, Robert H Mach
Dopamine D3 receptors have key roles in behavioral reward, addiction, Parkinson's disease, and schizophrenia, and there is interest in studying their role in these disorders using PET. However, current PET radiotracers for studying D3 receptors in humans all bind to both D2 and D3 due to similarities between the two receptors. Selective D2 and D3 radioligands would aid investigation of the differences between D2 and D3 circuitry in the central nervous system. While there are currently in vitro measures of ligand D3/D2 selectivity, there is a need for an in vivo PET measure of D3/D2 selectivity...
March 5, 2018: Neuroscience Letters
Alexandre Y Dombrovski, Elizabeth Aslinger, Aidan G C Wright, Katalin Szanto
OBJECTIVE: While loss of socioeconomic status (SES) has been linked to suicidal behavior, it is unclear whether this experience is merely a downstream effect of psychopathology ("downward drift"), a sign of hardship, or an independent psychological contributor to suicide risk. We examined the association between the subjective experience of status loss and suicidal behavior and ideation in old age, while accounting for potential confounders. We were also interested in whether status loss was associated with mere thoughts of suicide vs...
March 7, 2018: International Journal of Geriatric Psychiatry
Paula G Slater, Sebastian E Gutierrez-Maldonado, Katia Gysling, Carlos F Lagos
The corticotropin-releasing factor (CRF) system is a key mediator of the stress response and addictive behavior. The CRF system includes four peptides: The CRF system includes four peptides: CRF, urocortins I-III, CRF binding protein (CRF-BP) that binds CRF with high affinity, and two class B G-protein coupled receptors CRF1 R and CRF2 R. CRF-BP is a secreted protein without significant sequence homology to CRF receptors or to any other known class of protein. Recently, it has been described a potentiation role of CRF-BP over CRF signaling through CRF2 R in addictive-related neuronal plasticity and behavior...
2018: Frontiers in Endocrinology
Michael P Bogenschutz, Samantha K Podrebarac, Jessie H Duane, Sean S Amegadzie, Tara C Malone, Lindsey T Owens, Stephen Ross, Sarah E Mennenga
After a hiatus of some 40 years, clinical research has resumed on the use of classic hallucinogens to treat addiction. Following completion of a small open-label feasibility study, we are currently conducting a double-blind placebo-controlled clinical trial of psilocybin-assisted treatment of alcohol use disorder. Although treatment effects cannot be analyzed until the study is complete, descriptive case studies provide a useful window into the therapeutic process of psychedelic-assisted treatment of addiction...
2018: Frontiers in Pharmacology
Ritchy Hodebourg, Jennifer E Murray, Maxime Fouyssac, Mickaël Puaud, Barry J Everitt, David Belin
The alarming increase in heroin overdoses in the USA is a reminder of the need for efficacious and novel treatments for opiate addiction. This may reflect the relatively poor understanding of the neural basis of heroin, as compared to cocaine, seeking behavior. While cocaine reinforcement depends on the mesolimbic system, well established cocaine seeking is dependent on dorsolateral striatum (aDLS) dopamine-dependent mechanisms which are disrupted by N-acetylcysteine, through normalisation of corticostriatal glutamate homeostasis...
March 7, 2018: European Journal of Neuroscience
Michael E Authement, Ludovic D Langlois, Ryan D Shepard, Caroline A Browne, Irwin Lucki, Haifa Kassis, Fereshteh S Nugent
Centrally released corticotropin-releasing factor or hormone (extrahypothalamic CRF or CRH) in the brain is involved in the behavioral and emotional responses to stress. The lateral habenula (LHb) is an epithalamic brain region involved in value-based decision-making and stress evasion. Through its inhibition of dopamine-mediated reward circuitry, the increased activity of the LHb is associated with addiction, depression, schizophrenia, and behavioral disorders. We found that extrahypothalamic CRF neurotransmission increased neuronal excitability in the LHb...
March 6, 2018: Science Signaling
Robert D Ashford, Kevin Lynch, Brenda Curtis
BACKGROUND: Substance use disorder research and practice have not yet taken advantage of emerging changes in communication patterns. While internet and social media use is widespread in the general population, little is known about how these mediums are used in substance use disorder treatment. OBJECTIVE: The aims of this paper were to provide data on patients' with substance use disorders mobile phone ownership rates, usage patterns on multiple digital platforms (social media, internet, computer, and mobile apps), and their interest in the use of these platforms to monitor personal recovery...
March 6, 2018: Journal of Medical Internet Research
Maryann Mazer-Amirshahi, Sergey Motov, Lewis S Nelson
Hydromorphone (HM) is a potent opioid analgesic that is commonly administered in the emergency department (ED) and other acute care settings, such as medical surgical wards. In recent years, there has been a significant increase in the ED administration of HM relative to other opioids. Although HM is an effective analgesic, its use has been commonly implicated in adverse drug events and medication errors. In addition, intravenous HM has potent euphoric effects that may contribute to its abuse liability. There are limited data regarding how acute parenteral administration of opioid analgesics in the setting of high rates of preexisting chronic opioid use (medical or nonmedical) may contribute to or reinforce addictive behavior, making the potential contribution of rising HM administration to subsequent prescription opioid abuse and overdose uncertain...
January 2018: Journal of Opioid Management
Nerilee Hing, Alex M T Russell, En Li, Peter Vitartas
Background and aims Marketing inducements for addictive products, such as wagering, can prompt impulse purchasing by triggering consumption reminders, urges, and cravings. Wagering inducements incentivize betting by providing bonus bets, money-back guarantees, deposits into betting accounts, and discounts. Their promotion during sporting events, push marketing efforts directed at consumers, and ease of uptake at the point-of-sale, may trigger betting on impulse. This study examined whether the uptake of wagering inducements predicted impulse betting on sport...
March 6, 2018: Journal of Behavioral Addictions
David E Moorman
The hypocretin/orexin (ORX) system has been repeatedly demonstrated to regulate motivation for drugs of abuse, including alcohol. In particular, ORX seems to be critically involved in highly motivated behaviors, as is observed in high-seeking individuals in a population, in the seeking of highly palatable substances, and in models of dependence. It seems logical that this system could be considered as a potential target for treatment for addiction, particularly alcohol addiction, as ORX pharmacological manipulations significantly reduce drinking...
March 6, 2018: Psychopharmacology
Véronique Deroche-Gamonet, Jean-Michel Revest, Jean-François Fiancette, Eric Balado, Muriel Koehl, Noëlle Grosjean, Djoher Nora Abrous, Pier-Vincenzo Piazza
The hippocampus is the main locus for adult dentate gyrus (DG) neurogenesis. A number of studies have shown that aberrant DG neurogenesis correlates with many neuropsychiatric disorders, including drug addiction. Although clear causal relationships have been established between DG neurogenesis and memory dysfunction or mood-related disorders, evidence of the causal role of DG neurogenesis in drug-seeking behaviors has not been established. Here we assessed the role of new DG neurons in cocaine self-administration using an inducible transgenic approach that selectively depletes adult DG neurogenesis...
March 5, 2018: Molecular Psychiatry
Katherine R Tonn Eisinger, Kellie S Gross, Brian P Head, Paul G Mermelstein
Estrogen receptors α and β (ERα and ERβ) have a unique relationship with metabotropic glutamate receptors (mGluRs) in the female rodent brain such that estradiol is able to recruit intracellular G-protein signaling cascades to influence neuronal physiology, structure, and ultimately behavior. While this association between ERs and mGluRs exists in many cell types and brain regions, its effects are perhaps most striking in the nucleus accumbens (NAc). This review will discuss the original characterization of ER/mGluR signaling and how estradiol activity in the NAc confers increased sensitivity to drugs of abuse in females through this mechanism...
March 2, 2018: Hormones and Behavior
Laura M Anderson, Thomas P Chacko
Binge eating disorder, food addiction, and dysregulated overeating are common among people with severe obesity and prevalent among bariatric surgery populations. These problematic eating habits share commonalities with other addictions. Effective, holistic self-management is needed to promote long-term weight loss and psychosocial adjustment among patients who are severely obese who undergo surgery, especially those with clinically remarkable levels of binge eating, food addiction, or dysregulated overeating...
January 2018: Journal of Addictions Nursing
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