Abstract：
BACKGROUND:Deficits in schizophrenia patients and their first-degree relatives have been reported in prepulse inhibition (PPI), a phenomenon that measures an early stage of information processing (sensorimotor gating). It is less clear whether these information processing deficits extend to prepulse facilitation (PPF), which measures a later stage of generalized alerting or orienting. METHODS:This study examined three separate issues: first, whether schizophrenia patients have deficits in PPI and PPF; second, whether the siblings of patients show deficits in these processes; and third, whether prepulse duration influences the degree of the deficits. These issues were examined in 76 schizophrenia patients, 36 of their siblings, and 41 normal control subjects. RESULTS:Patients and siblings did not differ from control subjects in PPI, perhaps due to the use of different procedural parameters compared with other laboratories that have consistently found PPI deficits in schizophrenia patients. Patients and their siblings produced significantly less PPF than control subjects. For both PPI and PPF, prepulse duration was not a significant factor. CONCLUSIONS:These results imply that PPF deficits reveal a generalized alerting or orienting deficit that is present in both schizophrenia patients and their siblings, suggesting that this deficit may be tapping an endophenotypic vulnerability factor.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Wynn JK,Dawson ME,Schell AM,McGee M,Salveson D,Green MFdoi
10.1016/j.biopsych.2003.10.018subject
Has Abstractpub_date
2004-03-01 00:00:00pages
518-23issue
5eissn
0006-3223issn
1873-2402pii
S0006322303011296journal_volume
55pub_type
临床试验,杂志文章abstract：:In four series of studies on schizophrenic patients and normals we found that all the schizophrenics eliminated N, N-dimethyltryptamines in their urine while none of the normals did so. Similarly, with early infantile autism (Studies I and II) and normal controls, this separation between patiens and normals still held...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1975-08-01 00:00:00
abstract：:Covariance of brain electrical activity (EEG), plasma adrenocorticotrophic hormone (ACTH) and cortisol levels, and mood states were determined for healthy adult men during the first 2 hr after ingestion of ethanol or ethanol placebo under controlled double-blind conditions. Analysis of integrated plasma ACTH and corti...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/0006-3223(88)90084-4
更新日期：1988-01-15 00:00:00
abstract：:There is recognition that the cognitive symptoms of schizophrenia have the most substantial impact on illness outcome. Domains of cognition reported to be significantly affected include serial learning, executive function, vigilance, and distractibility, to name a few. Dopamine activity at D1 receptors mediates many c...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(98)00287-x
更新日期：1999-01-01 00:00:00
abstract：BACKGROUND:Few studies have examined the involvement of the central dopaminergic system in the pathophysiology of mood disorders. The study of prolactin (PRL) secretion may be an informative indirect method for the assessment of the dopaminergic system in children with major depressive disorder (MDD). METHODS:Plasma P...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00005-0
更新日期：1999-08-15 00:00:00
abstract：:In order to evaluate the impact of aging on EEG sleep patterns we investigated the polysomnograms of 74 patients with major depression and 51 healthy volunteers aged 18-65 years. In most of the EEG sleep parameters, age-related changes were obvious in both the depressives and the normals. In the patients, some of thes...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90355-p
更新日期：1991-05-15 00:00:00
abstract：:The effects of naltrexone on both mood and cognition were examined in overweight male subjects. Subjects were randomly prescribed, in a double-blind fashion, either placebo or naltrexone for 8 weeks. The results of the study showed that a chronic administration of a high dose of naltrexone (300 mg/day) does not signif...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0006-3223(86)90050-8
更新日期：1986-03-01 00:00:00
abstract：BACKGROUND:Most depressed adults exhibit dysregulation of the hypothalamic-pituitary-adrenal axis, including cortisol hyperreactivity to psychosocial challenge. In contrast, remarkably little is known about hypothalamic-pituitary-adrenal axis activity in response to psychosocial challenge among at-risk children and ado...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.04.004
更新日期：2010-09-01 00:00:00
abstract：BACKGROUND:The search for susceptibility genes in autism and autism spectrum disorders (ASD) has been hindered by the possible small effects of individual genes and by genetic (locus) heterogeneity. To overcome these obstacles, one method is to use autism-related subphenotypes instead of the categorical diagnosis of au...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.05.023
更新日期：2008-10-01 00:00:00
abstract：BACKGROUND:Reduction of precuneus choline acetyltransferase activity co-occurs with greater beta-amyloid (Aβ) in Alzheimer's disease (AD). Whether this cholinergic deficit is associated with alteration in nerve growth factor (NGF) signaling and its relation to Aβ plaque and neurofibrillary tangle (NFT) pathology during...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2013.12.016
更新日期：2015-04-15 00:00:00
abstract：BACKGROUND:Recent postmortem studies demonstrate disrupted neurochemistry of the noradrenergic locus coeruleus (LC) in major depression (MD). Increased levels of tyrosine hydroxylase and decreased levels of norepinephrine transporter implicate a norepinephrine deficiency in the LC in MD. Here we describe a study of alp...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01728-6
更新日期：2003-02-15 00:00:00
abstract：BACKGROUND:Why do we jump the gun or speak out of turn? Waiting impulsivity has a preclinical basis as a predictor for the development of addiction. Here, we mapped the intrinsic neural correlates of waiting and dissociated it from stopping, both fundamental mechanisms of behavioral control. METHODS:We used a recently...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.06.009
更新日期：2016-03-15 00:00:00
abstract：BACKGROUND:The development of adaptive implicit and explicit emotion regulation skills is crucial for mental health. Adolescence and emerging adulthood are periods of heightened risk for psychopathology associated with emotion dysregulation, and neurodevelopmental mechanisms have been proposed to account for this incre...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2020.08.006
更新日期：2021-01-15 00:00:00
abstract：BACKGROUND:DISC1 has been suggested as a causative gene for psychoses in a large Scottish kindred. PCNT2 has recently been identified as an interacting partner of DISC1. In this study, we investigated the role of PCNT2 in bipolar disorder, by gene expression analysis and genetic association study. METHODS:By TaqMan re...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2007.07.010
更新日期：2008-04-01 00:00:00
abstract：:The aim of the present study was to evaluate the pattern of basal cortisol release in PTSD and major depression using a chronobiological analysis. Plasma for cortisol determination was obtained from 15 combat veterans with PTSD, 14 subjects with major depression, and 15 normal men every 30 min during a 24-hour period ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00451-3
更新日期：1996-07-15 00:00:00
abstract：:Sixty-five cocaine-dependent subjects were enrolled into a 10-week randomized, double-blind study to determine the safety and efficacy of the serotonin-2 receptor antagonist, ritanserin (10 mg/day), in reducing cocaine consumption and craving. All subjects also participated in a structured intensive outpatient psychos...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/S0006-3223(96)00490-8
更新日期：1997-11-15 00:00:00
abstract：BACKGROUND:Subjects with chronic fatigue syndrome (CFS) frequently report symptoms of subnormal body temperature and low-grade fever. We conducted a study to determine whether CFS subjects manifest any abnormality of core body temperature (CBT) that might help explain their fatigue. METHODS:Continuous 24-hour recordin...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)83214-3
更新日期：1998-02-15 00:00:00
abstract：BACKGROUND:This study has two goals: 1) to establish a generalizable model of the symptoms observed in outpatients with major depressive disorder (MDD); and 2) to compare symptom coverage of the Inventory of Depressive Symptomatology, Clinician-Rated (IDS-C) and Self-Report (IDS-SR) to that of the Hamilton Depression R...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(98)00235-2
更新日期：1998-11-15 00:00:00
abstract：:This paper is not a comprehensive review of the literature. Rather, it is a viewpoint based upon advances in other fields of medicine and genetics that may provide a model for guiding research in psychiatry. The paper discusses the major limitations of the medicines currently used to treat schizophrenia and bipolar il...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2006.02.022
更新日期：2006-06-01 00:00:00
abstract：BACKGROUND:Impaired response inhibition is a key feature of patients with alcohol dependence. Improving impulse control is a promising target for the treatment of alcohol dependence. The pharmacologic agent modafinil enhances cognitive control functions in both healthy subjects and in patients with various psychiatric ...
journal_title：Biological psychiatry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.biopsych.2012.06.032
更新日期：2013-02-01 00:00:00
abstract：:Both genetic and environmental factors have been associated with an increased risk for schizophrenia. These factors are not mutually exclusive; a single gene can be a genetic factor (due to a mutation in the gene sequence) and a target of a physiological response to an environmental stimulus, both with the common endp...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2006.04.028
更新日期：2006-09-15 00:00:00
abstract：BACKGROUND:The hippocampus is likely involved in mood disorders, but in vivo evidence for the role of anatomically distinct hippocampal subregions is lacking. Multiple sclerosis, an inflammatory disease of the central nervous system, is linked to a high prevalence of depression as well as hippocampal damage and may thu...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.04.025
更新日期：2010-09-15 00:00:00
abstract：BACKGROUND:Long term medication with antipsychotic drugs is known to produce changes in neurotransmitter levels and receptor sensitivity in the cortex; however, the anatomic consequences of chronic antipsychotic exposure are not well established. METHODS:Accordingly, rhesus monkeys were given daily oral doses of typic...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00113-4
更新日期：1999-07-15 00:00:00
abstract：:Hypertonic hemolysis was increased in patients with a manic episode (n = 6, mean NaCl concentration in mol/L at which 50% of the erythrocytes was hemolyzed (H50) 3.24 +/- 0.10), compared to healthy controls (n = 12, mean H50 3.43 +/- 0.13) (p < or = 0.02) and patients with a nonaffective psychotic disorder (n = 15, me...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00106-9
更新日期：1996-01-01 00:00:00
abstract：:Psychiatric and neurologic disorders ranging from mental retardation to addiction are accompanied by structural and functional alterations of synaptic connections in the brain. Such alterations include abnormal density and morphology of dendritic spines, synapse loss, and aberrant synaptic signaling and plasticity. Re...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2003.10.006
更新日期：2004-06-15 00:00:00
abstract：:This study investigates whether response to total sleep deprivation in depressed patients may be predicted by the presence of diurnal variation of mood. Diurnal variation was measured with two different self-rating scales in 140 untreated depressed patients. Sleep deprivation responders manifest a higher percentage of...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90050-a
更新日期：1992-02-01 00:00:00
abstract：:Psychomotor retardation is a frequently observed clinical feature of depressive states. This study attempted to assess the relationship between response slowness and central nervous system (CNS) activity by examining cortical evoked potentials (EPs) during psychomotor task performance. Patients consisted of 21 women w...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(87)90149-1
更新日期：1987-03-01 00:00:00
abstract：BACKGROUND:To test the hypothesis that depression is associated with an increased ratio of cholinergic to serotonergic neurotransmission, we compared the effects of pilocarpine, a muscarinic agonist, and ipsapirone, a serotonin (5-HT)1A agonist, on electroencephalographic (EEG) sleep in depressed and healthy subjects. ...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)00551-9
更新日期：1998-07-01 00:00:00
abstract：BACKGROUND:Exploiting synteny between mouse and human disease loci has been proposed as a cost-effective method for the identification of human susceptibility genes. Here we explore its utility in an analysis of a human personality trait, neuroticism, which can be modeled in mice by tests of emotionality. We investigat...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2007.10.019
更新日期：2008-05-01 00:00:00
abstract：BACKGROUND:Obsessive-compulsive disorder (OCD) and tic disorders have phenomenological and familial-genetic overlaps. An OCD family study sample that excludes Tourette's syndrome in probands is used to examine whether tic disorders are part of the familial phenotype of OCD. METHODS:Eighty case and 73 control probands ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(01)01074-5
更新日期：2001-10-15 00:00:00
abstract：BACKGROUND:Pediatric anxiety disorders involve greater capture of attention by threatening stimuli. However, it is not known if disturbances extend to nonthreatening stimuli, as part of a pervasive disturbance in attention-related brain systems. We hypothesized that pediatric anxiety involves greater capture of attenti...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2020.07.016
更新日期：2020-08-01 00:00:00
