Memory Systems of the Addicted Brain: The Underestimated Role of Drug-Induced Cognitive Biases in Addiction and Its Treatment PDF Download
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Author: Vincent David
Publisher: Frontiers Media SA
ISBN: 2889454878
Category :
Languages : en
Pages : 163
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Book Description
Drug addiction may be viewed as a form of learning during which strong associations linking actions to drug-seeking are expressed as persistent stimulus–response habits, thereby maintaining a vulnerability to relapse. Disrupting cue–drug memory could be an efficient strategy to reduce the strength of cues in motivating drug-taking behavior. Upon reactivation, these memories undergo a reconsolidation process that can be blocked pharmacologically, providing an opportunity to prevent the powerful control of drug cues on behavior. This conceptually elegant approach still calls for more experimental data. However, an increasing body of evidence suggests that drug taking not only accelerates habit forming, but has long-lasting effects on interactions between memory systems eventually leading to a functional imbalance. The dorsal part of the striatum plays a critical role in habit/procedural learning, whereas the hippocampal memory system encodes relationships between events and their later flexible use. Both humans and rodents studies support the view that the hippocampus and the dorsal striatum interact in either a cooperative or competitive manner during learning, the prefrontal cortex being involved in the selection of an appropriate learning strategy. Chronic drug consumption biases normal interactions between these memory systems. For instance, drug-experienced rodents tend to use preferentially striatum-dependent learning strategies in navigational tasks. These persistent effects seem to occur at cellular, neurophysiological and behavioral levels to promote specific, striatal-dependent forms of learning, to the detriment of spatial/declarative, hippocampal-dependent and more flexible types of memory. Whether cue sensitive and response learners, in contrast to spatial learners, could be prone to drug addiction is an intriguing hypothesis which clearly deserves to be further explored. A loss of flexibility may be uncovered also by imposing changing rules on the subject, such as requiring an attentional shift between different perceptual features of a complex stimulus, as in the attentional set shifting task which was recently adapted to rodents. Working memory is at risk during transition phases, although it remains to be determined whether withdrawal-induced alterations are observed also during protracted abstinence. Drug-induced cognitive biases thus lead to cognitive rigidity which could play a critical, yet overlooked role in different phases of addiction (acquisition, extinction/withdrawal and relapse). They are also likely to preclude the clinical efficiency of treatments. Therefore, the aim of this research topic is to provide an overview of the current work investigating the long-term impact of drug use on learning and memory processes, how multiple memory systems modulate drug-seeking behavior, as well as how drug-induced cognitive biases could contribute to the persistence of addictive behaviors.
Author: Vincent David
Publisher: Frontiers Media SA
ISBN: 2889454878
Category :
Languages : en
Pages : 163
Get Book Here
Book Description
Drug addiction may be viewed as a form of learning during which strong associations linking actions to drug-seeking are expressed as persistent stimulus–response habits, thereby maintaining a vulnerability to relapse. Disrupting cue–drug memory could be an efficient strategy to reduce the strength of cues in motivating drug-taking behavior. Upon reactivation, these memories undergo a reconsolidation process that can be blocked pharmacologically, providing an opportunity to prevent the powerful control of drug cues on behavior. This conceptually elegant approach still calls for more experimental data. However, an increasing body of evidence suggests that drug taking not only accelerates habit forming, but has long-lasting effects on interactions between memory systems eventually leading to a functional imbalance. The dorsal part of the striatum plays a critical role in habit/procedural learning, whereas the hippocampal memory system encodes relationships between events and their later flexible use. Both humans and rodents studies support the view that the hippocampus and the dorsal striatum interact in either a cooperative or competitive manner during learning, the prefrontal cortex being involved in the selection of an appropriate learning strategy. Chronic drug consumption biases normal interactions between these memory systems. For instance, drug-experienced rodents tend to use preferentially striatum-dependent learning strategies in navigational tasks. These persistent effects seem to occur at cellular, neurophysiological and behavioral levels to promote specific, striatal-dependent forms of learning, to the detriment of spatial/declarative, hippocampal-dependent and more flexible types of memory. Whether cue sensitive and response learners, in contrast to spatial learners, could be prone to drug addiction is an intriguing hypothesis which clearly deserves to be further explored. A loss of flexibility may be uncovered also by imposing changing rules on the subject, such as requiring an attentional shift between different perceptual features of a complex stimulus, as in the attentional set shifting task which was recently adapted to rodents. Working memory is at risk during transition phases, although it remains to be determined whether withdrawal-induced alterations are observed also during protracted abstinence. Drug-induced cognitive biases thus lead to cognitive rigidity which could play a critical, yet overlooked role in different phases of addiction (acquisition, extinction/withdrawal and relapse). They are also likely to preclude the clinical efficiency of treatments. Therefore, the aim of this research topic is to provide an overview of the current work investigating the long-term impact of drug use on learning and memory processes, how multiple memory systems modulate drug-seeking behavior, as well as how drug-induced cognitive biases could contribute to the persistence of addictive behaviors.
Author:
Publisher:
ISBN:
Category : Drug addiction
Languages : en
Pages : 216
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Book Description
Author: Nicholas W. Gilpin
Publisher: Academic Press
ISBN: 0128234547
Category : Psychology
Languages : en
Pages : 560
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Book Description
People use drugs for many different reasons, including the pursuit of "high," social factors and self-medication of other conditions. Many millions of people are addicted to at least one substance, and the cost of addiction is immense, at both the individual and societal levels. Neurocircuitry of Addiction is the first book of its kind, with a focus on addiction neuroscience from a neural circuit perspective. This book begins with a primer on circuit-based neuroscience that equips the reader with an understanding of the applications described throughout the book. Each subsequent chapter positions a different brain region at the "center" of addiction neurocircuitry and goes on to describe the anatomical connectivity of that brain region, how those circuits are affected by drug exposure, and the role of those circuits in controlling addiction-related behaviors. All chapters of this book are written by content experts for a target audience that has some basic neuroscience background, but no prior in-depth knowledge regarding the neurocircuitry of addiction. - Reviews the circuit-based tools that are used by scientists to investigate neural circuit function - Describes how acute and chronic alcohol and drug exposure affect neural circuit function - Describes the state of the science regarding the role of specific neural circuis in drug addiction - Chapters include data from both human neuroscience and animal models
Author: John M. Oldham
Publisher: American Psychiatric Pub
ISBN: 9780880486767
Category : Medical
Languages : en
Pages : 314
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Book Description
Traditionally, impulsive and compulsive behaviors have been categorized as fundamentally distinct. However, patients often exhibit both of these behaviors. This common comorbidity has sparked renewed interest in the factors contributing to the disorders in which these behaviors are prominent. Impulsivity and Compulsivity applies a provocative spectrum model to this psychopathology. The spectrum model is consistent with a dimensional model for psychopathology and considers the dynamic interaction of biopsychosocial forces in the development of impulsive and compulsive disorders. In this important work on impulsive/compulsive psychopathology, leading researchers and clinicians share their expertise on the phenomenological, biological, psychodynamic, and treatment aspects of these disorders. Differential diagnosis, comorbidity of the impulsive-compulsive spectrum of disorders, and assessment by the seven-factor model of temperament and character are discussed. Chapters are also dedicated to the antianxiety function of impulsivity and compulsivity, defense mechanisms in impulsive disorders versus obsessive-compulsive disorders, and the unique aspects of psychotherapy with impulsive and compulsive patients. Clinical researchers and clinicians will be enlightened by this exceptional work. The information provided is supplemented with clinical vignettes, and the final chapter provides a synthetic summary that offers a unified, dynamic approach to impulsive and compulsive behavior.
Author: Ronald Ross Watson
Publisher: Academic Press
ISBN: 0128092963
Category : Medical
Languages : en
Pages : 416
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Book Description
Addictive Substances and Neurological Disease: Alcohol, Tobacco, Caffeine, and Drugs of Abuse in Everyday Lifestyles is a complete guide to the manifold effects of addictive substances on the brain, providing readers with the latest developing research on how these substances are implicated in neurological development and dysfunction. Cannabis, cocaine, and other illicit drugs can have substantial negative effects on the structure and functioning of the brain. However, other common habituating and addictive substances often used as part of an individual's lifestyle, i.e., alcohol, tobacco, caffeine, painkillers can also compromise brain health and effect or accentuate neurological disease. This book provides broad coverage of the effects of addictive substances on the brain, beginning with an overview of how the substances lead to dysfunction before examining each substance in depth. It discusses the pathology of addiction, the structural damage resulting from abuse of various substances, and covers the neurobiological, neurodegenerative, behavioral, and cognitive implications of use across the lifespan, from prenatal exposure, to adolescence and old age. This book aids researchers seeking an understanding of the neurological changes that these substances induce, and is also extremely useful for those seeking potential treatments and therapies for individuals suffering from chronic abuse of these substances. - Integrates current research on the actions of addictive substances in neurological disease - Includes functional foods, such as caffeine beverages, that have habituating effects on the brain - Provides a synopsis of key ideas associated with the consequences of addictive and habituating lifestyle substances
Author: Andreas Heinz
Publisher: Springer
ISBN: 3030030601
Category : Medical
Languages : en
Pages : 318
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Book Description
This book provides an overview of the state of the art in research on and treatment of gambling disorder. As a behavioral addiction, gambling disorder is of increasing relevance to the field of mental health. Research conducted in the last decade has yielded valuable new insights into the characteristics and etiology of gambling disorder, as well as effective treatment strategies. The different chapters of this book present detailed information on the general concept of addiction as applied to gambling, the clinical characteristics, epidemiology and comorbidities of gambling disorder, as well as typical cognitive distortions found in patients with gambling disorder. In addition, the book includes chapters discussing animal models and the genetic and neurobiological underpinnings of the disorder. Further, it is examining treatment options including pharmacological and psychological intervention methods, as well as innovative new treatment approaches. The book also discusses relevant similarities to and differences with substance-related disorders and other behavioral addictions. Lastly, it examines gambling behavior from a cultural perspective, considers possible prevention strategies and outlines future perspectives in the field.
Author: Jack E. Henningfield
Publisher: Springer Science & Business Media
ISBN: 3540692487
Category : Medical
Languages : en
Pages : 545
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Book Description
The fact that tobacco ingestion can affect how people feel and think has been known for millennia, placing the plant among those used spiritually, honori?cally, and habitually (Corti 1931; Wilbert 1987). However, the conclusion that nicotine - counted for many of these psychopharmacological effects did not emerge until the nineteenth century (Langley 1905). This was elegantly described by Lewin in 1931 as follows: “The decisive factor in the effects of tobacco, desired or undesired, is nicotine. . . ”(Lewin 1998). The use of nicotine as a pharmacological probe to und- stand physiological functioning at the dawn of the twentieth century was a landmark in the birth of modern neuropharmacology (Limbird 2004; Halliwell 2007), and led the pioneering researcher John Langley to conclude that there must exist some “- ceptive substance” to explain the diverse actions of various substances, including nicotine, when applied to muscle tissue (Langley 1905). Research on tobacco and nicotine progressed throughout the twentieth century, but much of this was from a general pharmacological and toxicological rather than a psychopharmacological perspective (Larson et al. 1961). There was some attention to the effects related to addiction, such as euphoria (Johnston 1941), tolerance (Lewin 1931), and withdrawal (Finnegan et al. 1945), but outside of research supported by the tobacco industry, addiction and psychopharmacology were not major foci for research (Slade et al. 1995; Hurt and Robertson 1998; Henning?eld et al. 2006; Henning?eld and Hartel 1999; Larson et al. 1961).
Author:
Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 268
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Book Description
Author: National Defense University Press
Publisher: NDU Press
ISBN: 1907521658
Category : Psychology
Languages : en
Pages : 529
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Book Description
Includes a foreword by Major General David A. Rubenstein. From the editor: "71F, or "71 Foxtrot," is the AOC (area of concentration) code assigned by the U.S. Army to the specialty of Research Psychology. Qualifying as an Army research psychologist requires, first of all, a Ph.D. from a research (not clinical) intensive graduate psychology program. Due to their advanced education, research psychologists receive a direct commission as Army officers in the Medical Service Corps at the rank of captain. In terms of numbers, the 71F AOC is a small one, with only 25 to 30 officers serving in any given year. However, the 71F impact is much bigger than this small cadre suggests. Army research psychologists apply their extensive training and expertise in the science of psychology and social behavior toward understanding, preserving, and enhancing the health, well being, morale, and performance of Soldiers and military families. As is clear throughout the pages of this book, they do this in many ways and in many areas, but always with a scientific approach. This is the 71F advantage: applying the science of psychology to understand the human dimension, and developing programs, policies, and products to benefit the person in military operations. This book grew out of the April 2008 biennial conference of U.S. Army Research Psychologists, held in Bethesda, Maryland. This meeting was to be my last as Consultant to the Surgeon General for Research Psychology, and I thought it would be a good idea to publish proceedings, which had not been done before. As Consultant, I'd often wished for such a document to help explain to people what it is that Army Research Psychologists "do for a living." In addition to our core group of 71Fs, at the Bethesda 2008 meeting we had several brand-new members, and a number of distinguished retirees, the "grey-beards" of the 71F clan. Together with longtime 71F colleagues Ross Pastel and Mark Vaitkus, I also saw an unusual opportunity to capture some of the history of the Army Research Psychology specialty while providing a representative sample of current 71F research and activities. It seemed to us especially important to do this at a time when the operational demands on the Army and the total force were reaching unprecedented levels, with no sign of easing, and with the Army in turn relying more heavily on research psychology to inform its programs for protecting the health, well being, and performance of Soldiers and their families."
Author: Kelly McGonigal
Publisher: Penguin
ISBN: 1583335080
Category : Psychology
Languages : en
Pages : 290
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Book Description
Based on Stanford University psychologist Kelly McGonigal's wildly popular course "The Science of Willpower," The Willpower Instinct is the first book to explain the science of self-control and how it can be harnessed to improve our health, happiness, and productivity. Informed by the latest research and combining cutting-edge insights from psychology, economics, neuroscience, and medicine, The Willpower Instinct explains exactly what willpower is, how it works, and why it matters. For example, readers will learn: • Willpower is a mind-body response, not a virtue. It is a biological function that can be improved through mindfulness, exercise, nutrition, and sleep. • Willpower is not an unlimited resource. Too much self-control can actually be bad for your health. • Temptation and stress hijack the brain's systems of self-control, but the brain can be trained for greater willpower • Guilt and shame over your setbacks lead to giving in again, but self-forgiveness and self-compassion boost self-control. • Giving up control is sometimes the only way to gain self-control. • Willpower failures are contagious—you can catch the desire to overspend or overeat from your friends—but you can also catch self-control from the right role models. In the groundbreaking tradition of Getting Things Done, The Willpower Instinct combines life-changing prescriptive advice and complementary exercises to help readers with goals ranging from losing weight to more patient parenting, less procrastination, better health, and greater productivity at work.
