Abstract：
:Two reaction time (RT) paradigms were used to study clozapine's effects on sustained and selective attention compared to fluphenazine and placebo in 25 chronic schizophrenic patients. Sensory dominance was studied via simple and choice RTs to lights and tones, and on double-stimulus trials in which the two stimuli were presented simultaneously. Although 8 of the 25 patients could not perform the RT tasks when taking placebo, there were no effects of clozapine on simple or choice RT compared to placebo or fluphenazine. Subjects on all 3 treatments showed visual dominance: faster RT to lights than to tones on choice and double-stimulus trials. However, clozapine reduced this by means of a selective increase in RT to lights. Clozapine reduced failures to respond to the tone on double-stimulus trials. This was shown to be due to reductions in hallucinations. Clozapine does not generally improve attention, but it may increase the ability of schizophrenic persons to process nondominant or unattended stimuli possibly by increasing the efficiency of resource allocation. This may be partially mediated by a reduction in hallucinations.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Zahn TP,Pickar D,Haier RJdoi
10.1016/0920-9964(94)90094-9subject
Has Abstractpub_date
1994-09-01 00:00:00pages
133-44issue
2eissn
0920-9964issn
1573-2509pii
0920-9964(94)90094-9journal_volume
13pub_type
临床试验,杂志文章,随机对照试验abstract：:While the "clinical high-risk state" for psychosis has demonstrated good reliability and fair predictive validity for psychotic disorders, over 50% of identified subjects do not progress to psychosis. Despite the benefits that early detection and treatment might offer, debate concerning the official inclusion of a "ps...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.03.012
更新日期：2010-07-01 00:00:00
abstract：:Mitochondria have been linked to the etiology of schizophrenia (SZ). However, studies of mitochondria in SZ might be confounded by the effects of pharmacological treatment with antipsychotic drugs (APDs) and other common medications. This review summarizes findings on relevant mitochondria mechanisms underlying SZ, an...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2019.09.007
更新日期：2020-03-01 00:00:00
abstract：:The ubiquitin ligase F-box protein 45 (FBXO45) is critical for synaptogenesis, neuronal migration, and synaptic transmission. FBXO45 is included in the 3q29 microdeletion region that confers a significant risk for schizophrenia, as shown by rare structural variant studies. Thus, FBXO45 is considered a prominent candid...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.04.032
更新日期：2014-08-01 00:00:00
abstract：:Verbal fluency deficits in schizophrenia are difficult to interpret because the tasks are multi-factorial and groups differ in total words generated. We manipulated retrieval and switching demands by requiring alternation between over-learned sequences in which retrieval is relatively automatic (OS) and semantic categ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2007.11.017
更新日期：2008-02-01 00:00:00
abstract：BACKGROUND:People with schizophrenia have an increased risk of premature mortality compared to the general population. We aimed to quantify which types of causes of death contributed to the excess mortality, and to examine whether there has been an increase in the excess mortality among persons with schizophrenia in th...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2018.11.003
更新日期：2019-04-01 00:00:00
abstract：INTRODUCTION:EEG power in the delta, theta and beta1 bands has been shown to be positively correlated with negative symptoms in first episode psychotic patients. The present study investigates this correlation in an "at risk mental state for psychosis" (ARMS) with the aim to improve prediction of transition to psychosi...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.08.031
更新日期：2010-11-01 00:00:00
abstract：BACKGROUND:A false sense of reality is a characteristic of schizophrenia spectrum disorders (SSD). Reality confusion may also emanate from posterior orbitofrontal cortex (OFC) lesions, as evident in confabulations that patients act upon and disorientation. This confusion can be measured by repeated runs of a continuous...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2018.07.036
更新日期：2019-02-01 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：:The distribution of schizophrenia in families supports the hypothesis of heritable risk factors in schizophrenia, but there is as yet no identification of an inherited neurobiological defect. Human embryonic brain tissue fragments, derived from first trimester abortions, can be transplanted into rat hosts, where they ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(94)90051-5
更新日期：1994-10-01 00:00:00
abstract：:Diffusion tensor imaging (DTI) studies suggest abnormalities in the white matter microstructure of the fornix in schizophrenia patients. Research evaluating schizophrenia patient and relatives also suggests that the white matter microstructure of the fornix is heritable. However, previous studies have been hindered by...
journal_title：Schizophrenia research
pub_type： 历史文章,杂志文章
doi：10.1016/j.schres.2014.09.037
更新日期：2014-11-01 00:00:00
abstract：BACKGROUND:Structural pathology in the hippocampus is well-documented in schizophrenia, but brain functional changes have not been consistently found. We used spatial navigation in a virtual reality environment, a task that is known to produce robust hippocampal activation in healthy subjects, to examine task-related a...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.02.033
更新日期：2016-04-01 00:00:00
abstract：:Mismatch negativity (MMN) and P3a are auditory event-related potential (ERP) components that show robust deficits in schizophrenia (SZ) patients and exhibit qualities of endophenotypes, including substantial heritability, test-retest reliability, and trait-like stability. These measures also fulfill criteria for use a...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.schres.2014.09.042
更新日期：2015-04-01 00:00:00
abstract：BACKGROUND:Patients with psychotic disorders show impairments in the recognition of emotions in other people. These impairments have been associated with poor social functioning as measured by self-report questionnaires, clinical interviews and laboratory-based tests of social skills. The ecological validity of these t...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2012.10.003
更新日期：2012-12-01 00:00:00
abstract：:Noises elicit startle blinks that are inhibited when immediately (approximately 100 ms) preceded by non-startling prepulses, perhaps reflecting automatic sensory gating. Startle blinks are facilitated when preceded by prepulses at longer lead intervals, perhaps reflecting strategic processes. Event-related brain poten...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(98)00148-0
更新日期：1999-05-25 00:00:00
abstract：BACKGROUND:A definition of clinical remission in schizophrenia has recently been proposed. However, it is also known that neuropsychological (NP) impairments may be better predictors of functional outcomes than clinical symptoms. Understanding the relationship between clinical remission and cognitive improvement may be...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2006.12.032
更新日期：2007-08-01 00:00:00
abstract：:A study of mortality for all patients with schizophrenia admitted to the University Hospital of North Norway during 1980-2006 was performed, with a special focus on gender differences and changes in mortality during a period of transition from hospital-based to community-based care. A total of 1111 patients with schiz...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2011.07.021
更新日期：2011-11-01 00:00:00
abstract：BACKGROUND:Delusions of control are among the most distinctive and characteristic symptoms of schizophrenia. Several theories have been proposed that implicate aberrant communication between spatially disparate brain regions in the etiology of this symptom. Given that white matter fasciculi represent the anatomical inf...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.08.033
更新日期：2015-01-01 00:00:00
abstract：:A prerequisite to longitudinal fMRI studies in schizophrenia is the knowledge on fMRI signal reliability in schizophrenia patients. We assessed the reproducibility of activations elicited by two fMRI sessions, which were 21 months apart, of a story listening paradigm in 10 schizophrenia patients and 10 healthy subject...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2011.01.025
更新日期：2011-05-01 00:00:00
abstract：BACKGROUND:D-serine is an allosteric modulator of the brain N-methyl-d-aspartate (NMDA) receptor and a potential novel treatment of schizophrenia. Double-blind studies have been performed at 30 mg/kg/day (approximately 2 g/day) with encouraging results, but no formal dose escalation studies have been performed. We desc...
journal_title：Schizophrenia research
pub_type： 临床试验,杂志文章
doi：10.1016/j.schres.2010.05.012
更新日期：2010-08-01 00:00:00
abstract：INTRODUCTION:Childhood abuse and neglect are risk factors for psychotic symptoms. Early adversities may contribute to alterations in neuro/social cognition, which in turn is associated with psychosis. This study explored the possible mediating/moderating role of neuro/social cognition between childhood abuse and neglec...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2018.11.028
更新日期：2019-04-01 00:00:00
abstract：OBJECTIVE:The primary aim is to examine concordant/discordant results of drug use assessments in adults with schizophrenia. METHODS:Latent class analysis and multinomial logistic regression were used to examine concordance/discordance between drug use measures and identify characteristics differentiating participants ...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2014.11.016
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:Appropriate expression of emotions and correct perception of emotional expression in others are important social skills which may be impaired in schizophrenia and contribute to poor social adjustment. We examined the relationship between expression of emotions as measured by affective flattening and other ne...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(00)00093-1
更新日期：2001-12-01 00:00:00
abstract：:Biomarkers which predict response to atypical antipsychotic drugs (AAPDs) increases their benefit/risk ratio. We sought to identify common variants in genes which predict response to lurasidone, an AAPD, by associating genome-wide association study (GWAS) data and changes (Δ) in Positive And Negative Syndrome Scale (P...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.schres.2017.04.009
更新日期：2018-02-01 00:00:00
abstract：OBJECTIVE:The diagnosis of psychotic disorder is associated with a risk of violence. Psychotic-like experiences (PLEs) in the general population may share an etiological background with psychotic disorders. The present study has evaluated the association between PLEs and violent behavior in adolescents. METHODS:PLEs a...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.08.028
更新日期：2011-03-01 00:00:00
abstract：:In previous studies of self-monitoring in schizophrenia, patients have exhibited reductions in the amplitude of the error-related negativity (ERN), a component of the event-related brain potential (ERP) elicited most prominently immediately following the execution of incorrect responses. In the current study, we exami...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2007.08.027
更新日期：2008-02-01 00:00:00
abstract：:Cholesterol metabolism is vital for brain function. Previous work in cultured cells has shown that a number of psychotropic drugs inhibit the activity of 7-dehydrocholesterol reductase (DHCR7), an enzyme that catalyzes the final steps in cholesterol biosynthesis. This leads to the accumulation of 7-dehydrocholesterol ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2017.02.001
更新日期：2017-09-01 00:00:00
abstract：:Schizophrenia (SZ) is associated with broad burden. The clinical manifestations of SZ are related to pathophysiological alterations similar to what is seen in normal aging. Our aim was to evaluate the differences in telomere length (TL), a biomarker of cellular aging, in subjects with SZ (n=36), unaffected siblings (S...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.04.004
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:Cognitive Remediation (CR) is an evidence based treatment targeting cognitive and functional difficulties in people with psychosis. Despite the large number of effectiveness studies, only limited evidence exists for the active ingredients of this therapy. This study begins to fill this gap by exploring the r...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2017.09.012
更新日期：2019-01-01 00:00:00
abstract：:Due to the limitations of analytical techniques and the complicity of schizophrenia, nowadays it is still a challenge to diagnose and stratify schizophrenia patients accurately. Many attempts have been made to identify and validate available biomarkers for schizophrenia from CSF and/or peripheral blood in clinical stu...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2019.03.009
更新日期：2020-12-01 00:00:00
abstract：:In 1873 Skeffington Lutwidge, a Lunacy Commission inspector of asylums in England, was killed by an asylum patient. Lutwidge was the uncle and close friend of Charles Lutwidge Dodgson, also known as Lewis Carroll. One year later, Carroll began writing The Hunting of the Snark, a poem whose meaning has mystified Carrol...
journal_title：Schizophrenia research
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.schres.2014.10.001
更新日期：2014-12-01 00:00:00
