Abstract：
:Sleep disturbances have been reliably reported in patients with schizophrenia, thus suggesting that abnormal sleep may represent a core feature of this disorder. Traditional electroencephalographic studies investigating sleep architecture have found reduced deep non-rapid eye movement (NREM) sleep, or slow wave sleep (SWS), and increased REM density. However, these findings have been inconsistently observed, and have not survived meta-analysis. By contrast, several recent EEG studies exploring brain activity during sleep have established marked deficits in sleep spindles in schizophrenia, including first-episode and early-onset patients, compared to both healthy and psychiatric comparison subjects. Spindles are waxing and waning, 12-16Hz NREM sleep oscillations that are generated within the thalamus by the thalamic reticular nucleus (TRN), and are then synchronized and sustained in the cortex. While the functional role of sleep spindles still needs to be fully established, increasing evidence has shown that sleep spindles are implicated in learning and memory, including sleep dependent memory consolidation, and spindle parameters have been associated to general cognitive ability and IQ. In this article we will review the EEG studies demonstrating sleep spindle deficits in patients with schizophrenia, and show that spindle deficits can predict their reduced cognitive performance. We will then present data indicating that spindle impairments point to a TRN-MD thalamus-prefrontal cortex circuit deficit, and discuss about the possible molecular mechanisms underlying thalamo-cortical sleep spindle abnormalities in schizophrenia.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Ferrarelli F,Tononi Gdoi
10.1016/j.schres.2016.05.023subject
Has Abstractpub_date
2017-02-01 00:00:00pages
36-43eissn
0920-9964issn
1573-2509pii
S0920-9964(16)30247-Xjournal_volume
180pub_type
杂志文章,评审abstract：BACKGROUND:Persistent formal thought disorder (FTD) is one of the most characteristic features of schizophrenia. Several neuroimaging studies report spatially distinct neuroanatomical changes in association with FTD. Given that most studies so far have employed a univariate localisation approach that obscures the study...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2015.07.022
更新日期：2015-10-01 00:00:00
abstract：:This prospective study examined the effect of medication compliance and substance abuse on 4 year outcome in 99 patients following a relapse of schizophrenia. Univariate survival analysis revealed longer community tenure in patients if they were over the age of 35 years, not admitted 2 years prior to the index episode...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(01)00261-4
更新日期：2002-04-01 00:00:00
abstract：BACKGROUND:The Heinrichs-Carpenter Quality of Life Scale (QLS) is the most extensively used real-world community functioning scale in schizophrenia research. However, the extensive time required to administer it and the inclusion of items that overlap conceptually with negative symptoms limit its use across studies. Th...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.02.013
更新日期：2014-04-01 00:00:00
abstract：:Neurological Examination Abnormalities (NEA) are prevalent in schizophrenia, but the significance of this is obscured by methodological problems. The Neurological Evaluation Scale (NES), the most widely used structured neurological examination in schizophrenia research, has had limited study of its inter-rater reliabi...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(97)00103-5
更新日期：1998-02-09 00:00:00
abstract：BACKGROUND:In recent years, schizophrenia has increasingly been recognized as a neurocognitive disorder, which has led to a growing literature on cognitive rehabilitation, and suggested several potential enhancements to cognitive function. For instance, it has been shown that executive functioning deficits as measured ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2008.08.005
更新日期：2008-12-01 00:00:00
abstract：:Few studies have been conducted examining cytokines in cerebrospinal fluid of patients compared to healthy volunteers. The goals of this study were: 1) to report original data detailing cytokine levels in the cerebrospinal fluid (CSF) of 10 patients with a schizophrenia spectrum disorder (SSD) diagnosis and 10 healthy...
journal_title：Schizophrenia research
pub_type： 杂志文章,meta分析
doi：10.1016/j.schres.2018.07.019
更新日期：2018-12-01 00:00:00
abstract：BACKGROUND:International studies indicate that the median prevalence of psychotic experiences in children is 7%. It has been proposed that environmental stress during pregnancy may affect the neurodevelopment of the foetus and lead to a vulnerability in the child to later stressors and psychopathology. AIM:In this stu...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2013.11.006
更新日期：2014-01-01 00:00:00
abstract：BACKGROUND:Many social processes such as emotion recognition are severely impaired in patients with schizophrenia. While basic auditory processing seems to play a key role in identifying emotions, research in this field is limited due to the lack of proper assessment batteries. Many of the widely accepted tests utilize...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2019.11.043
更新日期：2020-08-01 00:00:00
abstract：:Auditory--verbal hallucinations (AVH) are a characteristic feature of schizophrenia. Patients with AVHs have been found to differ from non-hallucinating patients in volumes of certain asymmetrical brain structures on MRI, and on certain neuropsychological measures. There is also evidence of corpus callosum (CC) abnorm...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(00)00070-0
更新日期：2001-05-30 00:00:00
abstract：:Schizophrenia is an illness characterized by positive symptoms, negative symptoms, and cognitive impairments. Cognitive impairments occur before the onset of psychosis and could reflect glutamatergic dysregulation. Thus, identifying associations between genetic variations in genes coding for glutamatergic receptors an...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2020.06.019
更新日期：2020-07-02 00:00:00
abstract：INTRODUCTION:Widespread white matter abnormalities and alterations in glutamate levels have been reported in patients with schizophrenia. We hypothesized that alterations in white matter integrity and glutamate levels in individuals at clinical high risk (CHR) for psychosis are associated with the subsequent developmen...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2020.06.006
更新日期：2020-06-25 00:00:00
abstract：:The recalcitrance of negative symptoms in the face of pharmacologic treatment has spurred interest in understanding the psychological factors that contribute to their formation and persistence. Accordingly, this study investigated whether deficits in metacognition, or the ability to form integrated ideas about oneself...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2015.06.015
更新日期：2015-10-01 00:00:00
abstract：:In keeping with the current clinical and research focus on early intervention and the rapid increase worldwide of programs for those experiencing a first episode of psychosis, the development of services for families has to be an integral part of any comprehensive program. Families can and do play a major role in the ...
journal_title：Schizophrenia research
pub_type： 杂志文章,评审
doi：10.1016/j.schres.2005.01.013
更新日期：2005-11-01 00:00:00
abstract：:Evidence-based decisions on indicated prevention in early psychosis require large-scale studies on the pathways to care in high-risk subjects. EPOS (The European Prediction of Psychosis Study), a prospective multi-center, naturalistic field study in four European countries (Finland, Germany, The Netherlands and Englan...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.schres.2013.11.031
更新日期：2014-02-01 00:00:00
abstract：OBJECTIVE:This study aims to differentiate schizoaffective disorder (SAD) and bipolar-I-disorder (BD) in first-episode psychotic mania (FEPM). METHODS:All 134 patients from an epidemiological first-episode psychosis cohort (N=786) with FEPM and an 18-month follow-up final diagnosis of SAD (n=36) or BD (n=98) were asse...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2012.07.010
更新日期：2012-09-01 00:00:00
abstract：OBJECTIVE:Studies in first episode psychosis samples about status of cardiovascular risk factors have shown discordant results. We aimed to determine the 10-year risk of developing coronary heart disease in a sample of first episode psychosis patients referred to an early intervention clinic and compared the same with ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.12.008
更新日期：2011-04-01 00:00:00
abstract：:Elevated serum levels of Interleukin-3 (IL-3), a major component of the cytokines, have been observed in chronic and medicated patients with schizophrenia, but this elevation may reflect either or both medication and illness chronicity effects. Thus, we compared serum IL-3 levels in first-episode drug-naive (FEDN) to ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.05.010
更新日期：2016-10-01 00:00:00
abstract：:The purpose of the study was to examine the relationship between social anxiety and social functioning in first episode psychosis, and to determine whether those with psychosis have any maladaptive or irrational beliefs regarding social situations. A sample of 60 first episode patients (41 males, 19 females) participa...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2005.01.001
更新日期：2005-07-15 00:00:00
abstract：BACKGROUND:We previously developed a novel method of identifying children aged 9-12 years who may be at elevated risk of developing schizophrenia and the spectrum disorders because they present a triad of putative antecedents of schizophrenia (ASz). The present study aimed to determine whether ASz children also present...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.05.034
更新日期：2010-08-01 00:00:00
abstract：:Neurodevelopmental pathogenesis of schizophrenia might be mediated by abnormalities in Insulin-like Growth Factor-1 (IGF-1). Developmental disturbances like obstetric complications, by themselves, as well as through the resultant hypercortisolemia due to hypothalamic-pituitary-adrenal (HPA) axis hyperactivity, can lea...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.01.033
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND:Loneliness is common in people with psychotic disorders and associated with reduced health and well-being. The relationship between loneliness in psychosis and health service use is unclear. This study examined whether loneliness predicts increased health care utilization in this population, independently of...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2020.05.059
更新日期：2020-09-01 00:00:00
abstract：:Enhancing work function is now widely considered a core element of comprehensive schizophrenia treatment. While research efforts have illuminated factors that influence how well patients perform at work, less is known about the factors influencing the subjective experience of work. It is not known how, and to what ext...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.04.017
更新日期：2014-08-01 00:00:00
abstract：BACKGROUND:The concept of dose equivalence of depot medication is important for many scientific and clinical purposes. METHODS:A systematic literature search on four second-generation antipsychotics available as long-acting injectable drugs and haloperidol was conducted. We used the minimum effective dose method which...
journal_title：Schizophrenia research
pub_type： 杂志文章,评审
doi：10.1016/j.schres.2017.07.033
更新日期：2018-03-01 00:00:00
abstract：:Nondeclarative memory (NDM) has subtypes associated with different brain regions; learning of a probabilistic classification task is impaired by striatal damage and learning of a gambling task is impaired by ventromedial prefrontocortical damage. Typical and atypical antipsychotic medications differentially affect imm...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(02)00315-8
更新日期：2003-06-01 00:00:00
abstract：:Prospective, double-blind, randomized trials comparing atypical antipsychotic drugs (APDs) to typical APDs, such as haloperidol, indicate that atypical APDs provide a modest benefit to cognitive function in schizophrenia. However, the validity of this inference has been contested by suggestions that the cognitive impr...
journal_title：Schizophrenia research
pub_type： 杂志文章,meta分析
doi：10.1016/j.schres.2006.08.021
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND:Current early screeners for psychosis-risk states have still to prove ability in identifying at-risk individuals. Among screeners, the 92-item Prodromal Questionnaire (PQ-92) is often used. We aimed to assess the validity of its Italian translation in a large Italian adolescent and young adult help-seeking s...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2017.02.008
更新日期：2017-11-01 00:00:00
abstract：:Given the morbidity and difficulty of treating psychotic disorders, including schizophrenia, there has been a move toward identifying and treating adolescents and young adults who appear to be clinically at risk or "prodromal" to psychosis. The field now has greater specificity in identification, with rates of 40-50% ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2004.05.021
更新日期：2005-03-01 00:00:00
abstract：BACKGROUND:Schizophrenia is a disabling complex mental disorder and despite all available treatment, many patients unfortunately remain partial- or non-responders. A large body of research has shown that oxytocin is an important prosocial peptide and there is initial evidence that the central oxytocin system is altered...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2016.02.011
更新日期：2016-04-01 00:00:00
abstract：:Schizophrenia typically results in reduced performance on the Wisconsin Card Sorting Test (WCST). In the current study, we used a variety of approaches to examine the role of working memory (WM) in this deficit. One approach was to examine patterns of perseverative and non-perseverative errors. A second approach invol...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(02)00353-5
更新日期：2003-10-01 00:00:00
abstract：BACKGROUND:Recent empirical evidence [Maher, B.A., Manschreck, T.C., Linnert, J., Candela, S., 2005. Quantitative assessment of the frequency of normal associations in the utterances of schizophrenia patients and healthy controls. Schizophrenia Research 78, 219-224] shows that schizophrenia patients produce an elevated...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2007.06.009
更新日期：2007-09-01 00:00:00
