Abstract：
:Schizophrenia is still a condition with obscure causes and psychopathology. This paper aims to discuss the "disconnectivity" hypothesis in relation to some neurological conditions which are known to alter brain connectivity, as well as mimicking some aspects of the disorder. After a short historical introduction to the concept, we will examine the evidence for connectivity problems in schizophrenia, separating the anatomical level from the functional level. Then, we will discuss three different issues concerning connectivity: i) local reduction in connectivity without neuronal loss (within the gray matter); ii) reduction in or alteration of long-range connectivity (within the white matter); and iii) abnormal targets for connections. For each of these aspects, we will look at the conditions able to reproduce anomalies capable of increasing susceptibility to schizophrenia. We conclude that psychosis is more likely to occur: i) when long-range connectivity is concerned; ii) when lesions result in lengthening and scattering of conduction times; and iii) when there are high dopamine levels, shedding light on or adding weight to the idea of an interaction between dopamine and connectivity.
journal_name
Dialogues Clin Neuroscijournal_title
Dialogues in clinical neuroscienceauthors
Foucher JR,Luck Dsubject
Has Abstractpub_date
2006-01-01 00:00:00pages
17-27issue
1eissn
1294-8322issn
1958-5969journal_volume
8pub_type
杂志文章,评审abstract：:Impairment of cognitive function is the central feature of dementia. Although, clinically, the cognitive deficit most often manifests itself as memory problems, a number of other areas of cognition are affected, and memory is but one of the cognitive skills compromised in dementia. Dementia with Lewy bodies, for examp...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：:In 2003, we proposed the hypersystemizing theory of autism. The theory proposes that the human mind possesses a systemizing mechanism (SM) that helps identify lawful regularities (often causal) that govern the input-operation-output workings of a system. The SM can be tuned to different levels, from low to high, with ...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2017-12-01 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：: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：: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：: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：:Partial remission from depression, with residual symptoms, is an important problem in depression. This paper reviews the frequency and features of this outcome, and its association with relapse. Residual symptoms occur in many depressed patients after acute treatment. They span the typical symptoms of depression, exce...
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：:Inborn errors of metabolism (IEMs) are particularly frequent as diseases of the nervous system. In the pediatric neurologic presentations of IEMs neurodevelopment is constantly disturbed and in fact, as far as biochemistry is involved, any kind of monogenic disease can become an IEM. Clinical features are very diverse...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2018-12-01 00:00:00
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journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
abstract：:It is clinically important to recognize both bipolar disorder and borderline personality disorder (BPD) in patients seeking treatment for depression, and it is important to distinguish between the two. Research considering whether BPD should be considered part of a bipolar spectrum reaches differing conclusions. We re...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2013-06-01 00:00:00
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journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：2004-03-01 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：:Biomarkers have been receiving increasing attention, especially in the field of psychiatry In contrast to the availability of potent therapeutic tools including pharmacotherapy, psychotherapy, and biological therapies, unmet needs remain in terms of onset of action, stability of response, and further improvement of th...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2011-01-01 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：:Psychiatric disorders are complex multifactorial disorders involving chronic alterations in neural circuit structure and function. While genetic factors play a role in the etiology of disorders such as depression, addiction, and schizophrenia, relatively high rates of discordance among identical twins clearly point to...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2014-09-01 00:00:00
abstract：:Depression can occur in association with virtually all the other psychiatric and physical diagnoses. Physical illness increases the risk of developing severe depressive illness. There are two broadly different mechanisms. The most obvious has a psychological or cognitive mechanism. Thus, the illness may provide the li...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2006-01-01 00:00:00
abstract：:Despite pharmacologic advances, the treatment of schizophrenia remains a challenge, and suboptimal outcomes are still all too frequent. Although treatment goals of response, remission, and recovery have been defined more uniformly, a good "effectiveness" measure mapping onto functional outcomes is still lacking. Moreo...
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：:Post-traumatic stress disorder (PTSD) may be associated with long-lasting psychological suffering, distressing psychosocial disability, markedly reduced health-related quality of life, and increased morbidity and mortality in a subgroup of individuals in the aftermath of serious traumatic events. Both etiopathogenesis...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2014-06-01 00:00:00
abstract：:Accumulating evidence suggests that psychotropic agents such as mood stabilizers, antidepressants, and antipsychotics realize their neurotrophic/neuroprotective effects by activating the mitogen activated protein kinase/extracellular signal-related kinase, PI3-kinase, and wingless/glycogen synthase kinase (GSK) 3 sign...
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：:Decision making has been extensively studied in the context of economics and from a group perspective, but still little is known on individual decision making. Here we discuss the different cognitive processes involved in decision making and its associated neural substrates. The putative conductors in decision making ...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2016-03-01 00:00:00
abstract：:It is timely to consider the ethical and social questions raised by progress in pharmacogenomics, based on the current importance of pharmacogenomics for avoidance of predictable side effects of drugs, and for correct choice of medications in certain cancers. It has been proposed that the entire population be genotype...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2014-12-01 00:00:00
abstract：:Schizophrenia (SZ) and bipolar disorder (BPD) patients show a downregulation of GAD67, reelin (RELN), brain-derived neurotrophic factor (BDNF), and other genes expressed in telencephalic GABAergic and glutamatergic neurons. This downregulation is associated with the enrichment of 5-methylcytosine and 5-hydroxymethylcy...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2014-09-01 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：:Nosological classification in psychiatry, as it is currently applied, does not facilitate biological and psychopharmacological research.• Syndromal acuity has disappeared. Consequently, it is impossible to determine: (i) vi/hether a particular drug affects a particular symptom configuration; (ii) what exactly the beha...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-12-01 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
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journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2006-01-01 00:00:00
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journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2005-01-01 00:00:00
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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：: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：:The insights of ethology-the science of animal behavior from a biological and psychological point of view-were incorporated in the 1950s by the British developmental psychiatrist, John Bowlby, into his attachment theory, which argued that a secure affective base in infancy was critical to the normal development of per...
journal_title：Dialogues in clinical neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2005-01-01 00:00:00
