Abstract：
:A broad definition of sensory gating refers to the ability of the brain to modulate its sensitivity to incoming sensory stimuli. This definition allows the concept of gating to include both the capacities to minimize or stop responding to incoming irrelevant stimuli (gating out) and to respond when a novel stimulus is presented or a change occurs in ongoing stimuli (gating in). In order to further characterize the function of sensory gating, we examined the attenuation (decreased responding) and augmentation (increased responding) of the P50 EP amplitudes in 22 normal volunteers. Three EP paradigms, each including a number of conditions, designed to examine both EP habituation (inhibition) and dishabituation (excitation) were administered to each subject. In conditions designed to examine habituation (identical pairs of clicks or trains of repetitive identical clicks), the P50 behaved, as expected, with decrease of the amplitude with repetition. In conditions designed to examine dishabituation the amplitude of the P50, EP did not decrease as much (and frequently increased) with stimulus change. The results suggest that the P50 EP is sensitive to the effects of stimulus repetition and stimulus change and can be used to study the different aspects of sensory gating.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Boutros NN,Belger Adoi
10.1016/s0006-3223(98)00253-4subject
Has Abstractpub_date
1999-04-01 00:00:00pages
917-22issue
7eissn
0006-3223issn
1873-2402pii
S0006-3223(98)00253-4journal_volume
45pub_type
杂志文章abstract：BACKGROUND:Limited successes of gene finding for major depressive disorder (MDD) may be partly due to phenotypic heterogeneity. We tested whether the genetic load for MDD, bipolar disorder, and schizophrenia (SCZ) is increased in phenotypically more homogenous MDD patients identified by specific clinical characteristic...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2016.05.024
更新日期：2017-02-15 00:00:00
abstract：BACKGROUND:Animal and human studies implicate forebrain neural circuits in maternal behavior. Here, we hypothesized that human brain response to emotional stimuli relevant for social interactions between infants and adults are modulated by sex- and experience-dependent factors. METHODS:We used functional magnetic reso...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(03)00697-8
更新日期：2003-12-15 00:00:00
abstract：:Injection of ferric chloride (FC) into the left amygdala of rats produced limbic seizures that lasted at least 3 weeks. In addition, FC-injected animals demonstrated motor impairment, decreased protesting vocalizations, and spontaneous stereotypies during a behavioral examination. An increase in apomorphine-induced st...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(85)90151-9
更新日期：1985-07-01 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:Advanced Parkinson's disease (PD) is characterized by massive degeneration of nigral dopaminergic neurons, dramatic motor and cognitive alterations, and presence of nigral Lewy bodies, whose main constituent is α-synuclein (α-syn). However, the synaptic mechanisms underlying behavioral and motor effects indu...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.08.013
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:Stress activates the hypothalamic-pituitary-adrenal (HPA) axis, so it was expected that posttraumatic stress disorder (PTSD) would be associated with activation of this axis; however, studies have found both increased and decreased cortisol in PTSD. To address this question, we collected saliva cortisol at h...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.05.011
更新日期：2004-08-01 00:00:00
abstract：BACKGROUND:In schizophrenia (SZ), disturbances in integration of activity among brain regions seem to be as important as abnormal activity of any single region. Brain regions are connected through white matter (WM) tracts, and diffusion tensor imaging has provided compelling evidence for WM abnormalities in SZ. However...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2013.03.003
更新日期：2013-09-15 00:00:00
abstract：:Traumatic events are common, but posttraumatic stress disorder (PTSD) is relatively rare. These facts have prompted several questions: What variables increase risk for PTSD among trauma-exposed people? Can we distinguish between pathologic and nonpathologic responses to traumatic stressors? If so, what psychobiologica...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(02)01663-3
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:Despite widely replicated abnormalities of gamma-aminobutyric acid (GABA) neurons in schizophrenia postmortem, few studies have measured tissue GABA levels in vivo. We used proton magnetic resonance spectroscopy to measure tissue GABA levels in participants with schizophrenia and healthy control subjects in ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.05.016
更新日期：2010-10-01 00:00:00
abstract：BACKGROUND:Structural MRI data indicate schizophrenics have reduced left-sided temporal lobe gray matter volumes, especially in the superior temporal gyrus (STG) and medial temporal lobe. Our data further suggest a specificity to schizophrenia spectrum disorders of STG volume reduction. Interpretation of research studi...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00030-x
更新日期：1999-06-01 00:00:00
abstract：:Previous studies indicate differences between schizophrenics and normals in thickness and overall size of the corpus callosum, particularly in female subjects. The present study compares the area of the corpus callosum as measured by magnetic resonance imaging (MRI) in men and women experiencing first-episode cases of...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(94)91237-8
更新日期：1994-06-15 00:00:00
abstract：:Sixty psychiatrically depressed patients (female = 39, male = 21), classified as psychotic or neurotic, were neuropsychologically assessed on an expanded Halstead-Reitan battery before antidepressant medication. Extant normative data from a large control group (N = 142) were employed for comparative purposes. Statisti...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:This review describes the strategy of using elementary phenotypes for neurobiological and genetic linkage studies of schizophrenia. The review concentrates on practical aspects of selecting the phenotype and then understanding the confounds in its measurement and interpretation. Examples from the authors' studies of d...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(99)00085-2
更新日期：1999-07-01 00:00:00
abstract：BACKGROUND:Elevated endogenous levels of corticosteroids cause neural dysfunction and loss, especially within the hippocampus, as well as cognitive impairment in hippocampus-mediated tasks. Because Cushing's syndrome patients suffer from hypercortisolism, they represent a unique opportunity to study the impact of eleva...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.09.003
更新日期：2004-12-01 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:Addiction relies on persistent alterations of neuronal properties, which depends on gene regulation. Activity-regulated cytoskeleton-associated protein (Arc) is an immediate early gene that modulates neuronal plasticity underlying learning and memory. Its role in cocaine-induced neuronal and behavioral adapt...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2016.05.025
更新日期：2017-04-01 00:00:00
abstract：:There is substantial evidence that depression is a risk factor for cardiac morbidity and mortality, both for patients without clinical evidence of coronary heart disease at index examination and for patients with established coronary disease. The relationship is most apparent for patients with a recent acute myocardia...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(03)00111-2
更新日期：2003-08-01 00:00:00
abstract：:Circling behavior is one of the best understood behaviors in animals. It is, for the most part, dopaminergically mediated and related to asymmetry in dopaminergic activity between the left and right basal ganglia or left and right frontal cortex. As a rule, animals rotate toward the hemisphere with lower striatal dopa...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(87)90009-6
更新日期：1987-08-01 00:00:00
abstract：BACKGROUND:Conflicting findings have emerged from studies examining the impact of depression on death and readmission following a coronary event, possibly reflecting differences in the measurement of "depression" and the onset of depression in relation to the coronary event. The aim of this study was to examine the rel...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.05.021
更新日期：2008-10-15 00:00:00
abstract：BACKGROUND:Overconsumption of calorically dense foods contributes substantially to the current obesity epidemic. The adiposity hormone leptin has been identified as a potential modulator of reward-induced feeding. The current study asked whether leptin signaling within the lateral hypothalamus (LH) and midbrain is invo...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.08.028
更新日期：2011-04-01 00:00:00
abstract：BACKGROUND:Chromatin remodeling, including changes in histone acetylation, might play a role in the pathophysiology and treatment of depression. We investigated whether the histone deacetylase inhibitor sodium butyrate (SB) administered as single drug or in combination with the selective serotonin reuptake inhibitor (S...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.06.036
更新日期：2007-07-01 00:00:00
abstract：BACKGROUND:Knockout (KO) mice invalidated for the dopamine transporter (DAT) constitute a powerful animal model of neurobiological alterations associated with hyperdopaminergia relevant to schizophrenia and attention-deficit/hyperactivity disorder (ADHD). METHODS:Because of continuously increasing evidence for a neuro...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2005.08.019
更新日期：2006-03-15 00:00:00
abstract：BACKGROUND:The interactions among experience, emotion, and memory are considered to be instrumental in the ontogeny and maintenance of acquired emotional and behavioral disorders (e.g., phobias). Here we address the question whether an anxiety-like state can associate with taste to produce conditioned taste aversion (C...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.08.024
更新日期：2004-12-01 00:00:00
abstract：:Five fixed doses of the atypical antipsychotic "Seroquel" (quetiapine) were evaluated to delineate a dose-response relationship, as measured by changes from baseline in Brief Psychiatric Rating Scale (BPRS), Clinical Global Impression (CGI), and Modified Scale for the Assessment of Negative Symptoms (SANS) summary sco...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s0006-3223(97)00190-x
更新日期：1997-08-15 00:00:00
abstract：:The male bias in autism spectrum disorder incidence is among the most extreme of all neuropsychiatric disorders, yet the origins of the sex difference remain obscure. Developmentally, males are exposed to high levels of testosterone and its byproduct, estradiol. Together these steroids modify the course of brain devel...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2016.10.004
更新日期：2017-03-01 00:00:00
abstract：BACKGROUND:Our study described the neuropsychological profile of psychotic major depression (PMD) compared to nonpsychotic major depression (NPMD) patients and psychiatrically healthy controls (HC). We predicted that higher cortisol levels would be associated with greater cognitive deficits. METHODS:Twenty-nine PMDs, ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2005.11.010
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND:The medial prefrontal cortex (mPFC) subserves complex cognition and is impaired by stress. Corticotropin-releasing factor (CRF), through CRF receptor 1 (CRFR1), constitutes a key element of the stress response. However, its contribution to the effects of stress in the mPFC remains unclear. METHODS:Mice were...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2016.03.2106
更新日期：2016-11-15 00:00:00
abstract：:Quantitative and qualitative measures of brain morphology were derived through CT scans using computer-assisted methodology in patients with schizophrenia or schizo-affective psychosis and headache controls. Schizophrenics had significantly higher density of white matter, together with greater right vs. left asymmetry...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1984-07-01 00:00:00
abstract：:Dynamic computed tomography (CT) scanning of the brain was performed in 26 patients with primary degenerative dementia (PDD) and in 15 age-matched controls without evidence of a dementing illness. Changes in CT density values over time were obtained for 16 regions of interest (ROIs) that were carefully chosen to avoid...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(90)90410-4
更新日期：1990-09-01 00:00:00
abstract：BACKGROUND:A facial discrimination task was adapted to be used in an event-related potential (ERP) paradigm in order to evaluate whether young women's brain responses to affective stimuli differed from those of young men. METHODS:The stimuli used to generate a late positive component of the ERP, designated the "P450,"...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(97)00487-3
更新日期：1998-08-15 00:00:00
