Abstract：
:This paper describes an elementary deficit in sensory processing in people with schizophrenia. If paired sounds are presented to normal subjects, the response to the first sound, as measured by the P50 wave of the auditory-evoked potential, is much greater than the response to the second sound. The diminished response to the second sound is an example of a sensory gating mechanism that enables people to regulate their vigilance so that they can either detect all sounds in the environment or ignore most of them, in favor of narrowing the focus of their concentration. In schizophrenia, this mechanism is usually deficient; patients are in a state of hypervigilance and have diminished abilities to focus their attention. The deficiency appears to be genetically determined and to involve the brainstem control of sensory input to the hippocampus. Such sensory gating deficits may underlie more complex psychotic symptoms, such as hallucinations and delusions. Further studies of their neurobiology could lead to increased understanding of the pathophysiology of schizophrenia.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Freedman R,Waldo M,Bickford-Wimer P,Nagamoto Hdoi
10.1016/0920-9964(91)90035-psubject
Has Abstractpub_date
1991-03-01 00:00:00pages
233-43issue
2eissn
0920-9964issn
1573-2509pii
0920-9964(91)90035-Pjournal_volume
4pub_type
杂志文章,评审abstract：:Deficits in N-methyl-d-aspartate-type (NMDAR) function contribute to cognitive deficits in schizophrenia, particularly dysfunction in neuroplasticity, defined as reduced learning during training on exercises that place implicit, increasing demands on early sensory (auditory and visual) information processing. Auditory...
journal_title：Schizophrenia research
pub_type： 杂志文章,评审
doi：10.1016/j.schres.2018.02.003
更新日期：2019-05-01 00:00:00
abstract：:Learning and memory impairments are present in schizophrenia (SZ) throughout the illness course and predict psychosocial function. Abnormalities in prefrontal and hippocampal function are thought to contribute to SZ deficits. The radial arm maze (RAM) is a test of spatial learning and memory in rodents that relies on ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2011.11.014
更新日期：2012-03-01 00:00:00
abstract：:Impaired illness insight in schizophrenia is associated with non-adherence and worse outcomes. Schizophrenia patients also exhibit error-monitoring deficits, which have been proposed to cause poor insight. To test this hypothesis, we examined whether schizophrenia patients' deficits in neurophysiological error-monitor...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.03.023
更新日期：2014-06-01 00:00:00
abstract：BACKGROUND:Pharmaceutical companies conduct clinical trials to show the efficacy and safety of new medications for the treatment of schizophrenia. After the new medications are marketed, clinicians treating patients with schizophrenia discover that a considerable number of patients do not respond to these new medicatio...
journal_title：Schizophrenia research
pub_type： 杂志文章,评审
doi：10.1016/j.schres.2017.03.020
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to test the goodness-of-fit of all previously published five-factor models of the Positive and Negative Syndrome Scale (PANSS). METHODS:We used confirmatory factor analysis (CFA) with a large data set (N = 5769). RESULTS:The different subsamples were tested for heterogeneity and we...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2006.04.001
更新日期：2006-07-01 00:00:00
abstract：:Individuals with schizophrenia have difficulties in emotional information processing. A relationship between behavioral variables of emotional processing and structural amygdala alterations in schizophrenia has been proposed but not shown, yet. Morphological studies of amygdala size in schizophrenia have yielded incon...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2004.02.023
更新日期：2004-12-01 00:00:00
abstract：:We examined the fractionation of executive functioning performance in ninety patients with schizophrenia, who were tested for initiation, sustained attention, switching/flexibility, attention allocation and impulsivity/disinhibition. The participants were also given tests of general intelligence and memory. We analyse...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2005.08.011
更新日期：2006-01-31 00:00:00
abstract：:The results of research on the relation of family history (FH) of psychosis with clinical presentation in schizophrenia have been mixed. To date, there have been no comprehensive reviews that have examined this body of research. The current review quantitatively evaluates research on the relation of FH with two aspect...
journal_title：Schizophrenia research
pub_type： 杂志文章,meta分析
doi：10.1016/j.schres.2010.01.011
更新日期：2010-07-01 00:00:00
abstract：:Functional abnormalities in the interhemispheric transfer via the corpus callosum in schizophrenia may result in filtering problems and information processing problems, which may in turn be related to the synchronization of cortical event-related activity. To explore whether a relationship exists between corpus callos...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(00)00123-7
更新日期：2001-04-15 00:00:00
abstract：:Large-scale gene expression studies in schizophrenia (SZ) have generally focused on the dorsolateral prefrontal cortex. Despite a wealth of evidence implicating multiple other brain regions in the disease, studies of other brain regions have been less frequent and have rarely been performed in the same subjects. We an...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2005.03.020
更新日期：2005-09-15 00:00:00
abstract：:Previous studies suggest that schizophrenia-related visual perceptual abnormalities are primarily attributed to deficits of the dorsal rather than ventral visual pathway. In this study, we comparatively explored changes in dorsal and ventral networks in schizophrenia patients in both static and dynamic functional conn...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2018.12.005
更新日期：2019-04-01 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：:Gray matter brain volume decreases have been found in patients with schizophrenia as compared to healthy control subjects measured by using Magnetic Resonance Imaging (MRI). An association has been suggested between decreased gray matter volume and poor outcome in chronically ill patients with schizophrenia. The prese...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究
doi：10.1016/s0920-9964(03)00018-5
更新日期：2003-11-01 00:00:00
abstract：:The intracellular enzyme phospholipase A2 (PLA2) plays an essential role in the breakdown of membrane phospholipids, which regulate the physicochemical properties of the cell membrane. In the brain PLA2 has been reported to influence receptor function and signal transduction. Regarding dopaminergic neurons, data from ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(94)00060-l
更新日期：1995-07-01 00:00:00
abstract：:Because previous studies have shown deficits in olfactory identification for male patients with schizophrenia, either withdrawn from or receiving neuroleptic medication, the purpose of the current study was to determine if such deficits occurred in male patients who had never received neuroleptics. A sample of male (n...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(93)90022-b
更新日期：1993-01-01 00:00:00
abstract：:Poor insight into the neurocognitive deficits in schizophrenia-spectrum disorders may have significant clinical implications for treatment. The purpose of this study was to replicate and extend the psychometric findings initially reported on the Measure of Insight into Cognition Clinician-Rated (MIC-CR) and Self-Repor...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2011.10.002
更新日期：2012-01-01 00:00:00
abstract：OBJECTIVE:To explore the impact of the introduction of newer antipsychotic long-acting injections (LAIs) on trends in LAI prescribing and characteristics associated with initiation of LAIs in naturalistic conditions. METHODS:The study was performed using reimbursement data from the French Insurance Healthcare system. ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.09.014
更新日期：2016-12-01 00:00:00
abstract：:Previous studies have indicated that schizophrenic patients have olfactory deficits. The question as to whether olfactory deficits are due to chronic effects of medication has not been addressed. This is the first paper to report that never-medicated schizophrenic patients also have olfactory deficits. Twenty four nor...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(93)90008-7
更新日期：1993-03-01 00:00:00
abstract：OBJECTIVE:Patients with schizophrenia have a high prevalence of metabolic disorders and cardiovascular mortality. It is possible that a vulnerability to metabolic abnormalities is associated with risk for psychosis, symptoms and functionality. In this study, we evaluate demographic information, cardiometabolic indices,...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2018.09.022
更新日期：2019-02-01 00:00:00
abstract：BACKGROUND:Aberrations in body perception are common in psychotic disorders. The insula and temporoparietal junction (TPJ) are involved in body ownership and spatial perception suggesting that abnormal structure of these regions might be related to the expression of perceptual aberrations in psychosis. METHODS:58 indi...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.10.005
更新日期：2017-01-01 00:00:00
abstract：:Widely used in industrialized countries, cannabis is a neuromodulator substance. The cannabinoid system is present at critical stages of retinal processing. We have recently shown a delay in bipolar and ganglion cell responses in regular cannabis users, as observed using flash (fERG) and pattern (PERG) electroretinogr...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2019.01.013
更新日期：2020-05-01 00:00:00
abstract：:There is growing awareness that reduced expressive behaviors (e.g., blunt affect, alogia, psychomotor retardation) are characteristic of a range of psychiatric conditions, including mood and schizophrenia-spectrum disorders. From a Research Domain Criteria (RDoC) perspective, it would be critical to determine whether ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2012.07.001
更新日期：2012-09-01 00:00:00
abstract：BACKGROUND:Epidemiologic evidence as early as the 1930s has suggested urbanization is linked to schizophrenia, either by place of admission, place of upbringing, or, more recently, place of birth. In the past decade, obstetric complications have been implicated in the etiology of schizophrenia. METHODS:With appropriat...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(99)00152-8
更新日期：2000-06-16 00:00:00
abstract：:Interleukin-1 beta, interleukin-6, tumor necrosis factor-alpha and the soluble interleukin-2 receptor were measured in the serum of 34 healthy controls and 48 patients with chronic schizophrenia using ELISA sandwich assays. No differences were found between the controls and patients. ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(95)00089-5
更新日期：1996-05-01 00:00:00
abstract：:Evidence suggests that insight in psychosis has been related to treatment adherence, recovery and good prognosis, but also to depression, low self-esteem, and diminished quality of life. Thus, insight might not be advantageous under all circumstances. Internalized-stigma (i.e. self-acceptance of stigmatizing images of...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2015.03.010
更新日期：2015-05-01 00:00:00
abstract：:Schizoaffective patients can have neurocognitive deficits and default mode network dysfunction while being acutely ill. It remains unclear to what extent these abnormalities persist when they go into clinical remission. Memory and executive function were tested in 22 acutely ill schizoaffective patients; they also und...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.08.017
更新日期：2014-11-01 00:00:00
abstract：OBJECTIVE:Reduced procreation among men with schizophrenia has been reported consistently when compared with female patients, but the cause is unknown. Reports on Caucasian individuals predominate in the published literature. Therefore, analyses were conducted concurrently among independent Indian and US samples in the...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2003.08.009
更新日期：2004-06-01 00:00:00
abstract：:Schizophrenia may result from the concerted action of several pathophysiological factors. This pilot study compared the distribution of measurements of three such putative factors in 11 schizophrenics and their siblings: a neurophysiological deficit in auditory sensory gating, diminished hippocampal volume, and increa...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(94)90067-1
更新日期：1994-05-01 00:00:00
abstract：:Using the fluorescent probe DPH (1,6-diphenyl-1,3,5-hexatriene), steady-state anisotropy (rs) values were determined in red blood cell (RBC) ghost membranes of schizophrenic patients before (n = 26) and after (n = 16) haloperidol withdrawal, and age- and sex-matched normal controls (n = 22). Patients on haloperidol we...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(94)90014-0
更新日期：1994-02-01 00:00:00
abstract：:Dopamine (DA) D2 receptors which act by modulating second messenger pathways that include protein kinase C (PKC) and adenylate cyclase (AC) have been repeatedly shown to be increased in striatum from subjects with schizophrenia. Therefore it seemed possible that chronic up-regulation of DA-D2 receptors in the schizoph...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(96)00065-5
更新日期：1996-11-15 00:00:00
