Abstract：
:Although much is now known about the neural basis of fear acquisition, the mechanisms of fear inhibition or suppression remain largely obscure. Fear inhibition is studied in the laboratory through the use of an extinction procedure, in which an animal (typically a rat) is exposed to nonreinforced presentations of a conditioned stimulus (CS; e.g., a light or tone) that had previously been paired with a fear-inducing unconditioned stimulus (US; e.g., a mild footshock). Over the course of such training, the conditioned fear response exhibited by the rat in the presence of the CS is reduced in amplitude and frequency. This procedure is analogous to those employed in the treatment of fear dysregulation in humans, which typically involve exposure to the feared object in the absence of any overt danger. Recent work on the neural basis of extinction indicates that the neurotransmitters gamma-aminobutyric acid (GABA) and glutamate are critically involved. Gamma-aminobutyric acid may act to inhibit brain areas involved in fear learning (e.g., the amygdala), and glutamate, acting at N-methyl-D-aspartate receptors, may play a role in the neural plasticity that permits this GABA-mediated inhibition to be exerted appropriately. These insights have significant implications for the conduct of extinction-based clinical interventions for fear disorders.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Davis M,Myers KMdoi
10.1016/s0006-3223(02)01507-xsubject
Has Abstractpub_date
2002-11-15 00:00:00pages
998-1007issue
10eissn
0006-3223issn
1873-2402pii
S000632230201507Xjournal_volume
52pub_type
杂志文章,评审abstract：:Neutrophils from 22 patients (11 men, 11 women) under chronic lithium therapy and from 22 age- and sex-matched healthy controls were assessed for the activity of the agonist-stimulated inositol-phospholipid second messenger-producing system. [3H]inositol-labeled cells were stimulated with the chemotactic peptide formy...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90305-6
更新日期：1991-09-01 00:00:00
abstract：BACKGROUND:Cannabis use is associated with an increased risk of psychosis. One study has suggested that genetic variation in the AKT1 gene might influence this effect. METHODS:In a case-control study of 489 first-episode psychosis patients and 278 control subjects, we investigated the interaction between variation at ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2012.06.020
更新日期：2012-11-15 00:00:00
abstract：BACKGROUND:Hypersecretion of corticotropin-releasing hormone (CRH) in the brain has been implicated in stress-related human pathologies. We developed a transgenic mouse line overexpressing CRH (CRH-OE) exclusively in neural tissues to assess the effect of long-term CRH overproduction on regulation of the hypothalamic-p...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01334-3
更新日期：2002-06-01 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：:Social phobia (or "social anxiety disorder") is a prevalent condition that has been the subject of increased scrutiny in recent years. The purpose of this paper is to review the neurobiology of social phobia. It is apparent from the extant literature that this disorder is poorly understood from a neurobiological persp...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(98)00265-0
更新日期：1998-12-15 00:00:00
abstract：BACKGROUND:Neurocognitive deficits are recognized as a cardinal feature of schizophrenia, but the determinants of these deficits remain unknown. Recent reports have suggested that a functional polymorphism, Val(158)Met in exon III of the catechol-O-methyltransferase gene, shares approximately 4% variance with performan...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01416-6
更新日期：2002-10-01 00:00:00
abstract：:The behavioral effects of a 2 mg/kg iv bolus infusion of naloxone were compared with a placebo infusion using a double-blind design in a small group of inpatient depressives (n = 6) and normals (n = 8). Naloxone produced consistent and significant worsening in the rated signs and subjective symptoms of depression in t...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：
更新日期：1984-06-01 00:00:00
abstract：:There is no definitive neural marker of suicidal thoughts and behaviors (STBs) or nonsuicidal self-injury (NSSI), and relative to adults, research in youth is more limited. This comprehensive review focuses on magnetic resonance imaging studies reporting structural and functional neural correlates of STBs and NSSI in ...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2020.06.002
更新日期：2021-01-15 00:00:00
abstract：:It has been proposed that the nailfold subpapillary plexus visibility score (PVS) may be a marker of susceptibility to schizophrenia. To further investigate this hypothesis, we evaluated plexus visibility in a sample of 61 chronic schizophrenics, a large sample of first-episode psychotic patients and their first-degre...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90231-n
更新日期：1992-02-15 00:00:00
abstract：:An early-onset, familial form of Alzheimer's disease (AD) has been reported to be linked to a locus on the long arm of chromosome 21 (21q21). Furthermore, duplications in the vicinity of this locus involving the beta-amyloid gene and the proto-oncogene ets-2 have been reported in association with AD. The structural ge...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(89)90236-9
更新日期：1989-03-15 00:00:00
abstract：:The current concept that blunted adrenocorticotropic hormone (ACTH) response to human corticotropin-releasing-hormone (h-CRH) in depression is primarily determined by elevated circulating plasma cortisol levels is still unproven. We tested this hypothesis by comparing ACTH release following intravenous administration ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(88)90254-5
更新日期：1988-11-01 00:00:00
abstract：BACKGROUND:Limited success has been achieved through previous attention-deficit/hyperactivity disorder (ADHD) linkage scans, which were all designed to map genes underlying the dichotomous phenotype. The International Multi-centre ADHD Genetics (IMAGE) project performed a whole genome linkage scan specifically designed...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.02.024
更新日期：2008-10-01 00:00:00
abstract：:It has previously been demonstrated that direct opiate infusion into nucleus accumbens elicits psychomotor activation in rats. In the present study, the effects of chronic treatment with five different neuroleptics on this behavioral response were investigated. All neuroleptics tested (haloperidol, sulpiride, flupenti...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(86)90006-5
更新日期：1986-01-01 00:00:00
abstract：:The history of psychiatric research is filled with widely accepted etiologic and pathophysiologic theories that eventually were proven wrong. The prevailing pathophysiologic theories of schizophrenia have emphasized the role of abnormal neurodevelopment in determining the onset and course of the illness. Relatively li...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(99)00147-x
更新日期：1999-09-15 00:00:00
abstract：BACKGROUND:A genetic component has a role in the etiology of Panic Disorder (PD) and a familial association between PD and CO2 hypersensitivity have been repeatedly described. METHODS:Complex segregation analysis was performed on a sample of 165 families of PD probands and on the subgroup homogeneous for CO2 hypersens...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00004-9
更新日期：1999-09-15 00:00:00
abstract：:Several studies have reported prolonged neural transmission times on auditory brainstem responses (ABRs) measured in autistic children, a finding which implicates CNS dysfunction at the level of the brainstem in autistic conditions. This study measured ABRs in 25 children and adults with pervasive developmental disord...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1984-10-01 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：BACKGROUND:Posttraumatic stress disorder (PTSD) is marked by intrusive, chronic, and distressing memories of highly emotional events. Previous research has highlighted the role of the amygdala and its interactions with the hippocampus in mediating the effect of enhanced memory for emotional information in healthy indiv...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.07.018
更新日期：2010-12-01 00:00:00
abstract：BACKGROUND:Degeneration of the locus coeruleus (LC), the major noradrenergic nucleus in the brain, occurs early and is ubiquitous in Alzheimer's disease (AD). Experimental lesions to the LC exacerbate AD-like neuropathology and cognitive deficits in several transgenic mouse models of AD. Because the LC contains multipl...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2012.06.013
更新日期：2013-03-01 00:00:00
abstract：BACKGROUND:Plasma homovanillic acid (HVA) changes in response to a challenge of several days with haloperidol have been found to be predictive of the therapeutic response to haloperidol over a longer period of treatment. METHODS:Twenty-six elderly women who gave informed consent were divided into two groups, with or w...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)00257-6
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND:The aim of the present study was to investigate dopamine synthesis in the brain of drug-free schizophrenic patients, not only in the striatum but also in extrastriatal areas like the prefrontal cortex, brain areas that for a long time has been in focus of interest in the pathophysiology of schizophrenia. ME...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00109-2
更新日期：1999-09-01 00:00:00
abstract：BACKGROUND:Recent reports suggest that gamma-glutamyl transferase (GGT) decreases with coffee intake. The aim of this study was to examine the joint influence of alcohol, tobacco, cotinine, coffee, and caffeine on biological markers of heavy drinking in an alcoholic population. METHODS:Subjects were 160 alcohol-depend...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)00438-1
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND:Alterations of mineralocorticoid receptor (MR) mediated negative feedback inhibition of cortisol might contribute to abnormalities of hypothalamic-pituitary adrenal (HPA) activity in posttraumatic stress disorder (PTSD). METHODS:In a placebo-controlled study, we examined 11 subjects with PTSD and 11 healthy...
journal_title：Biological psychiatry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.biopsych.2006.01.014
更新日期：2006-10-01 00:00:00
abstract：:Depersonalization and other behavioral and physiological indices were monitored before and after the administration of high- and low-potency marijuana cigarettes and a placebo cigarette in 35 physically and mentally healthy normal volunteers. The cigarettes were administered under double-blind conditions during three ...
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(93)90171-9
更新日期：1993-03-15 00:00:00
abstract：:Cerebrospinal fluid beta-endorphin-like immunoreactivity (CSF BLI) was determined for 69 patients who met DSM-III criteria for delirium and for 8 controls. The CSF BLI was significantly lower in the delirious patient group than in the controls (12.5 +/- 3.0 pg/ml versus 15.0 +/- 3.4 pg/ml, p less than 0.05). CSF BLI h...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(89)90273-4
更新日期：1989-04-01 00:00:00
abstract：:Several clinical investigations have suggested that captopril, an angiotensin-converting enzyme inhibitor (ACEI), currently used as an antihypertensive agent, exhibited anti-depressant properties in humans. The present experiment was evaluated for potential antidepressive activity of captopril on the learned helplessn...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(90)90034-y
更新日期：1990-05-01 00:00:00
abstract：:Determinations of albumin and immunoglobulin G (IgG) were performed in paired cerebrospinal fluid (CSF) and serum samples from 24 subjects with schizophrenia. These determinations allowed calculation of two indices, one that is an indicator of integrity of the blood-brain barrier and the other a measure of selective I...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(85)90002-2
更新日期：1985-10-01 00:00:00
abstract：BACKGROUND:Early emerging characteristics of visual orienting have been associated with a wide range of typical and atypical developmental outcomes. In the current study, we examined the development of visual disengagement in infants at risk for autism. METHODS:We measured the efficiency of disengaging from a central ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2012.11.030
更新日期：2013-08-01 00:00:00
abstract：BACKGROUND:Women are overrepresented in samples of patients with rapid cycling bipolar disorder (RCBD). To explore whether menstrually related mood changes might account for this gender difference, we studied the relationship between menstrual cycle phase and mood in a sample of premenopausal women with rapid cycling b...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00023-2
更新日期：1999-08-15 00:00:00
abstract：:Certain investigators have asserted that the illness of anorexia nervosa is a form of hypothalamic disturbance. The relationship between 24-hr urine 3-methoxy-4-hydroxyphenylglycol (MHPG) and dexamethasone suppression tests was examined in 13 female patients with AN diagnosed by RDC. Patients showed a consistent assoc...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
