Abstract：
:Caffeine is not considered addictive, and in animals it does not trigger metabolic increases or dopamine release in brain areas involved in reinforcement and reward. Our objective was to measure caffeine effects on cerebral perfusion in humans using single photon emission computed tomography with a specific focus on areas of reinforcement and reward. Two groups of nonsmoking subjects were studied, one with a low (8 subjects) and one with a high (6 subjects) daily coffee consumption. The subjects ingested 3 mg/kg caffeine or placebo in a raspberry-tasting drink, and scans were performed 45 min after ingestion. A control group of 12 healthy volunteers receiving no drink was also studied. Caffeine consumption led to a generalized, statistically nonsignificant perfusion decrease of 6% to 8%, comparable in low and high consumers. Compared with controls, low consumers displayed neuronal activation bilaterally in inferior frontal gyrus-anterior insular cortex and uncus, left internal parietal cortex, right lingual gyrus, and cerebellum. In high consumers, brain activation occurred bilaterally only in hypothalamus. Thus, on a background of widespread low-amplitude perfusion decrease, caffeine activates a few regions mainly involved in the control of vigilance, anxiety, and cardiovascular regulation, but does not affect areas involved in reinforcing and reward.
journal_name
Dialogues Clin Neuroscijournal_title
Dialogues in clinical neuroscienceauthors
Nehlig A,Armspach JP,Namer IJsubject
Has Abstractpub_date
2010-01-01 00:00:00pages
255-63issue
2eissn
1294-8322issn
1958-5969journal_volume
12pub_type
临床试验,杂志文章,随机对照试验abstract：:Recent years have seen an explosive growth of interest in the application of imaging genetics to understand neurogenetic mechanisms of schizophrenia. Imaging genetics applies structural and functional neuroimaging to study subjects carrying genetic risk variants that relate to a psychiatric disorder. We review selecte...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2010-01-01 00:00:00
abstract：:The validity of diagnostic definitions in psychiatry is directly related to the extent to which their etiology can be specified. However, since detailed knowledge of causal or susceptibility factors is lacking for most psychiatric disorders with a known or suspected familial-genetic origin, the current widely accepted...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-12-01 00:00:00
abstract：:We review critical trends in imaging genetics as applied to schizophrenia research, and then discuss some future directions of the field. A plethora of imaging genetics studies have investigated the impact of genetic variation on brain function, since the paradigm of a neuroimaging intermediate phenotype for schizophr...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2013-09-01 00:00:00
abstract：:Cognitive symptoms are a core feature of schizophrenia and are related to an unfavorable disease outcome. So far, there are no satisfactory pharmacological approaches to address cognitive symptoms. For some time now, aerobic exercise has been demonstrated in various trials to be a promising candidate for this indicati...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,meta分析,评审
doi：10.31887/DCNS.2019.21.3/aschmitt
更新日期：2019-09-01 00:00:00
abstract：:It is well established that individuals with bipolar disorder are differentially affected by substance-related as well as medical disorders (ie, cardiometabolic disorders, respiratory disorders, neurological disorders, and infectious diseases). Emerging evidence indicates that some comorbid conditions (eg, diabetes me...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2008-01-01 00:00:00
abstract：:Time has long been a major topic of study in social science, as in other sciences or in philosophy. Social scientists have tended to focus on collective representations of time, and on the ways in which these representations shape our everyday experiences. This contribution addresses work from such disciplines as anth...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2012-12-01 00:00:00
abstract：:There is increasing knowledge about considerable comorbidity between psychiatric and somatic diseases, questioning whether variations in genes could be predisposing factors for both conditions. With respect to the multiple interactions between brain and body investigations have centered on variants in several candidat...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
abstract：:The recognition that there are fundamental biological sex differences that extend beyond those that define sexual behavior and reproductive function has inspired the drive toward inclusion of both sexes in research design. This is supported by an underlying clinical rationale that studying both sexes is necessary to e...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2016-12-01 00:00:00
abstract：:The introduction of biological markers in the clinical management of Alzheimer's disease (AD) will not only improve diagnosis relating to early detection of neuropathology with underlying molecular mechanisms, but also provides tools for the assessment of objective treatment benefits. In this review, we identify a num...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2009-01-01 00:00:00
abstract：:Late-life depression (LLD) is a growing public and global health concern with diverse clinical manifestations and etiology. This literature review summarizes neuroimaging findings associated with depression in older adults and treatment-response variability. LLD has been associated with cerebral atrophy, diminished my...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2015-06-01 00:00:00
abstract：:The study of molecular clock mechanisms in psychiatric disorders is gaining significant interest due to data suggesting that a misalignment between the endogenous circadian system and the sleep-wake cycle might contribute to the clinical status of patients suffering from a variety of psychiatric disorders. Sleep distu...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2007-01-01 00:00:00
abstract：:Contemporary biological psychiatry uses experimental animal models to increase our understanding of affective disorder pathogenesis. Modern anxiolytic drug discovery mainly targets specific pathways and molecular determinants within a single phenotypic domain. However, greater understanding of the mechanisms of action...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2015-09-01 00:00:00
abstract：:The present study was conducted in order to investigate the relationships between central noradrenergic (NA) and serotonergic (5-HT) function and clinical characteristics of a major depressive episode according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. We measured growth hormone res...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:The construct of major depressive disorder makes no etiological assumptions about populations with diverse symptom clusters. "Depressed mood" and "loss of interest or pleasure in nearly all activities" are core features of major depressive episode, though a strong case can be made to pay increasing attention to sympto...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2008-01-01 00:00:00
abstract：:Every human is unique. We differ in our genomes, environment, behavior, disease history, and past and current medical treatment-a complex catalog of differences that often leads to variations in the way each of us responds to a particular therapy. We argue here that true personalization of drug therapies will rely on ...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
abstract：:It has become increasingly clear that males and females differ even more dramatically than we previously thought. Not only do they exhibit differing responses to stress and environmental experience, but they can also respond in opposite directions. In rats, it has been shown that exposure to an acute stressful event c...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2002-06-01 00:00:00
abstract：:There is mounting evidence that recurrent mood disorders - once considered "good prognosis diseases"- are, in fact, often very severe and life-threatening illnesses. Furthermore, although mood disorders have traditionally been conceptualized as neurochemical disorders, there is now evidence from a variety of sources d...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:In this review, we outline critical molecular processes that have been implicated by discovery of genetic mutations in autism. These mechanisms need to be mapped onto the neurodevelopment step(s) gone awry that may be associated with cause in autism. Molecular mechanisms include: (i) regulation of gene expression; (ii...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2012-09-01 00:00:00
abstract：:The frontoparietal network is critical for our ability to coordinate behavior in a rapid, accurate, and flexible goal-driven manner. In this review, we outline support for the framing of the frontoparietal network as a distinct control network, in part functioning to flexibly interact with and alter other functional b...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2018-06-01 00:00:00
abstract：:Sleep disorders in children and adolescents is a topic that has been, and remains, neglected in both public health education and professional training. Although much knowledge has been accumulated in recent times, it has been poorly disseminated and, therefore, relatively little is put into practice. Only some general...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2009-01-01 00:00:00
abstract：:While the legitimacy of medical treatments is more and more questioned, one sees a paradoxical increase in nonconventional approaches, notably so in psychiatry. Over time, approaches that were considered valuable by the scientific community were found to be inefficacious, while other approaches, labelled as alternativ...
journal_title：Dialogues in clinical neuroscience
pub_type： 历史文章,杂志文章,评审
doi：
更新日期：2018-09-01 00:00:00
abstract：:A wide range of Internet interventions, mostly grounded in methods of cognitive behavioral therapy, have been developed and tested for several mental disorders. The evidence to date shows that these interventions are effective in reducing symptoms of depression. Metaanalyses report small-to-medium effect sizes when In...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2016-06-01 00:00:00
abstract：:The relationship between stress and infertility has been debated for years. Women with infertility report elevated levels of anxiety and depression, so it is clear that infertility causes stress. What is less clear, however, is whether or not stress causes infertility. The impact of distress on treatment outcome is di...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2018-03-01 00:00:00
abstract：:Mental disorders represent a significant public health burden worldwide due to their high prevalence, chronically disabling nature, and substantial impact on quality of life. Despite growing knowledge of the pathological mechanisms that underlie the development of these disorders, a high percentage of patients do not ...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：10.31887/DCNS.2020.22.3/pfadda
更新日期：2020-09-01 00:00:00
abstract：:Schizophrenia and bipolar disorder have a largely unknown pathophysiology and etiology, but they are highly heritable. Although linkage and association studies have identified a series of chromosomal regions likely to contain susceptibility genes, progress in identifying causative genes has been largely disappointing....
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2010-01-01 00:00:00
abstract：:Emotional processes are central to behavior, yet their deeply subjective nature has been a challenge for neuroscientific study as well as for psychiatric diagnosis. Here we explore the relationships between subjective feelings and their underlying brain circuits from a computational perspective. We apply recent insigh...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2015-12-01 00:00:00
abstract：:As one of the most common neurological disorders, epilepsy has devastating behavioral, social, and occupational consequences and is associated with accumulating brain damage and neurological deficits. Epilepsy comprises a large number of syndromes, which vary greatly with respect to their etiology and clinical feature...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2008-01-01 00:00:00
abstract：:Obsessive-compulsive disorder (OCD) is a serious psychiatric disorder that affects approximately 2% of the populations of children and adults. Family aggregation studies have demonstrated that OCD is familial, and results from twin studies demonstrate that the familiality is due in part to genetic factors. Only three ...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2010-01-01 00:00:00
abstract：:Wider use of pharmacological models would facilitate the development of new drugs for Alzheimer's disease (AD), The two main models currently used are based on the cholinergic and glutamatergic hypotheses of AD, Although they lead to some of the attention and memory impairment observed in AD, they do not fully reprodu...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:Losing a loved to suicide is one is one of life's most painful experiences. The feelings of loss, sadness, and loneliness experienced after any death of a loved one are often magnified in suicide survivors by feelings of quilt, confusion, rejection, shame, anger, and the effects of stigma and trauma. Furthermore, surv...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2012-06-01 00:00:00
