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Book
La schizophrénie et les troubles de la dépendance tabagique

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Abstract

Since years, scientists have noticed a strong nicotinic tendency by schizophrenics. The number of smokers is indeed two to three times more important than in the general population, and twice the number by people affected by other mental diseases.
Several assumptions were formulated to define this link between schizophrenia and nicotinism.
The most defended assumption is self medication. Indeed, schizophrenia is a disease characterized by an excess and, at the same time, a deficit in dopamine involving positive and negative symptoms but also cognitive disorders. In addition to these general effects, nicotine increases the release of the dopamine by acting on the reward pathways, what results in a reduction of the negative symptoms and some cognitive disorders but also to avoid some side effects caused by the schizophrenics’ treatment.
However, we can notice that the treatment of the schizophrenic can have an influence on their nicotinic behaviour. Indeed, the atypical antipsychotics, acting at the same time on the positive and the negative symptoms but also improving some cognitive disorders involve a reduction in the cigarette consumption in opposition to the traditional antipsychotics which act only on the positive symptoms.
But nowadays, none of the voiced assumptions is a certainty Depuis plusieurs années, les chercheurs constatent une forte tendance tabagique chez les schizophrènes. En effet, le nombre de fumeurs dans la population schizophrénique est 2 à 3 fois celui rencontré dans la population générale et 2 fois celui des personnes atteintes d’autres maladies mentales.
Plusieurs hypothèques ont été formulées pour définir ce lien entre schizophrénie et tabagisme.
L’hypothèse le plus défendue est celle de l’automédication. En effet, la schizophrénie est une maladie caractérisé à la fois pas un excès et un déficit en dopamine entrainant des symptômes positifs, des symptômes négatifs mais aussi des troubles cognitifs. Le nicotine, en plus de ces effets généraux, augmente la libération de la dopamine en agissant au niveau de la voie de la récompense, ce qui a pour conséquences de réduire les symptômes négatifs et certains troubles cognitifs lier à un manque de dopamine.
La cigarette serait donc utilisée pour réduire les symptômes négatifs, les troubles cognitifs mais aussi pour éviter certains effets secondaires provoqués par le traitement des schizophrènes.
On peu remarquer, cependant, que le traitement médicamenteux du schizophrène peut avoir une influence sur le comportement tabagique. En effet, les neuroleptiques atypiques, agissant en même temps sur les symptômes positifs et sur les symptômes négatifs mais aussi améliorant certains troubles cognitifs, entrainent une diminution de la consommation de cigarette contrairement aux neuroleptiques classiques qui n’agissent que sur les symptômes positifs.
Mais à l’heure actuelle, aucune des hypothèses émises n’est une certitude


Book
Nicotine Psychopharmacology
Authors: --- --- ---
ISBN: 9783540692461 9783540692485 Year: 2009 Publisher: Berlin Heidelberg Springer Berlin Heidelberg

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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).


Book
Nicotine Psychopharmacology
Authors: --- ---
ISBN: 3642088724 3540692460 9786612000805 1282000802 3540692487 Year: 2009 Publisher: Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer,

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Abstract

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).

Keywords

Nicotine --Physiological effect. --- Nicotine. --- Psychopharmacology. --- Nicotine --- Psychopharmacology --- Tobacco Use Disorder --- Methods --- Pharmacology --- Biological Science Disciplines --- Pyridines --- Substance-Related Disorders --- Solanaceous Alkaloids --- Behavioral Sciences --- Psychiatric Somatic Therapies --- Investigative Techniques --- Diseases --- Heterocyclic Compounds, 1-Ring --- Behavioral Disciplines and Activities --- Alkaloids --- Natural Science Disciplines --- Mental Disorders --- Analytical, Diagnostic and Therapeutic Techniques and Equipment --- Health Occupations --- Psychiatry and Psychology --- Heterocyclic Compounds --- Disciplines and Occupations --- Chemicals and Drugs --- Pharmacy, Therapeutics, & Pharmacology --- Toxicology & Public Health --- Public Health --- Health & Biological Sciences --- Physiological effect --- Physiological effect. --- Behavioral pharmacology --- Drugs --- Psychotropic effects --- Medicine. --- Neurosciences. --- Pharmacology. --- Psychiatry. --- Neuropsychology. --- Biomedicine. --- Pharmacology/Toxicology. --- Chemotherapy --- Psychotropic drugs --- Pyridine --- Tobacco --- Tobacco products --- Toxicology. --- Psychology, clinical. --- Neural sciences --- Neurological sciences --- Neuroscience --- Medical sciences --- Nervous system --- Medicine and psychology --- Mental health --- Psychology, Pathological --- Chemicals --- Medicine --- Poisoning --- Poisons --- Toxicology --- Neurophysiology --- Psychophysiology --- Drug effects --- Medical pharmacology --- Pharmacy


Book
The Motivational Impact of Nicotine and its Role in Tobacco Use
Authors: ---
ISBN: 0387787488 1441926992 9786611954321 1281954322 0387787496 9780387787480 Year: 2009 Volume: 55 Publisher: New York, NY : Springer New York : Imprint: Springer,

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Tobacco kills more people worldwide than any legal or illegal drug; the collective benefits of quitting smoking are plentiful, from improved health, increased life expectancy, and fewer sick days to less stress on families and health care providers. Tobacco use and addiction depend on the complex interplay of neurochemical, genetic, personal, and social factors—and nicotine, as the principal psychoactive ingredient in tobacco smoke, stands at the center of this equation. The Motivational Impact of Nicotine and Its Role in Tobacco Use assembles papers from the 55th Nebraska Symposium on Motivation in a multidimensional analysis of nicotine at work. These papers present data, theories, and findings useful in understanding not only the mechanisms behind tobacco dependence and resistance to quitting, but also the issues involved in smoking cessation, initial use prevention, and relapse prevention. Some of the key areas covered include: Molecular and neurobiological perspectives on the motivational effects of nicotine. The motivational components of nicotine dependence and the import of learning history. The role of nicotine in making environmental cues associated with smoking more reinforcing. The effects of pharmaco- and immunotherapies on the ability of psychological cues to influence smoking behavior. Sex differences in nicotine reinforcement and their implications for treatment. The importance of craving in the maintenance of smoking behavior and in its relapse after quitting. Given the continued impact of smoking on public health, The Motivational Impact of Nicotine and Its Role in Tobacco Use will attract a wide audience. This cutting-edge information is vital to the clinical psychologist, researcher, and policymaker involved in developing more efficient therapies, more effective treatment products, better delivery systems, or new avenues for research. About the Nebraska Symposium on Motivation The Nebraska Symposium on Motivation has been sponsored by the Department of Psychology at the University of Nebraska-Lincoln since 1953. Each year the Symposium invites leading scholars from around the world to speak at a conference devoted to a topic of current interest to psychology, the proceedings of which are published in an edited volume.

Keywords

Motivation (Psychology). --- Nicotine addiction. --- Tobacco use. --- Nicotine addiction --- Tobacco use --- Motivation (Psychology) --- Motivation --- Nicotine --- Tobacco Use Disorder --- Emotional Intelligence --- Pyridines --- Substance-Related Disorders --- Behavior and Behavior Mechanisms --- Solanaceous Alkaloids --- Intelligence --- Heterocyclic Compounds, 1-Ring --- Alkaloids --- Diseases --- Mental Disorders --- Psychiatry and Psychology --- Heterocyclic Compounds --- Personality --- Chemicals and Drugs --- Psychology --- Substance Abuse Disorders --- Social Change --- Psychiatry --- Social Sciences --- Sociology & Social History --- Health & Biological Sciences --- Cigarette habit --- Nicotine dependence --- Tobacco addiction --- Tobacco dependence --- Action, Psychology of --- Drive (Psychology) --- Psychology of action --- Tobacco habit --- Psychology. --- Personality. --- Social psychology. --- Personality and Social Psychology. --- Mass psychology --- Psychology, Social --- Human ecology --- Social groups --- Sociology --- Personal identity --- Personality psychology --- Personality theory --- Personality traits --- Personology --- Traits, Personality --- Individuality --- Persons --- Self --- Temperament --- Behavioral sciences --- Mental philosophy --- Mind --- Science, Mental --- Human biology --- Philosophy --- Soul --- Mental health --- Habit --- Substance abuse --- Drug addiction --- Tabagisme --- Motivation (Psychologie) --- Consciousness. --- Apperception --- Mind and body --- Perception --- Spirit --- Difference (Psychology). --- Personality and Differential Psychology. --- Differential psychology --- Psychology, Differential --- Differentiation (Developmental psychology)

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