Abstract:
BACKGROUND:Genetic influences contribute significantly to co-morbidity between conduct disorder and substance use disorders. Estimating the extent of overlap can assist in the development of phenotypes for genomic analyses. METHOD:Multivariate quantitative genetic analyses were conducted using data from 9577 individuals, including 3982 complete twin pairs and 1613 individuals whose co-twin was not interviewed (aged 24-37 years) from two Australian twin samples. Analyses examined the genetic correlation between alcohol dependence, nicotine dependence and cannabis abuse/dependence and the extent to which the correlations were attributable to genetic influences shared with conduct disorder. RESULTS:Additive genetic (a(2) = 0.48-0.65) and non-shared environmental factors explained variance in substance use disorders. Familial effects on conduct disorder were due to additive genetic (a(2) = 0.39) and shared environmental (c(2) = 0.15) factors. All substance use disorders were influenced by shared genetic factors (rg = 0.38-0.56), with all genetic overlap between substances attributable to genetic influences shared with conduct disorder. Genes influencing individual substance use disorders were also significant, explaining 40-73% of the genetic variance per substance. CONCLUSIONS:Among substance users in this sample, the well-documented clinical co-morbidity between conduct disorder and substance use disorders is primarily attributable to shared genetic liability. Interventions targeted at generally reducing deviant behaviors may address the risk posed by this shared genetic liability. However, there is also evidence for genetic and environmental influences specific to each substance. The identification of these substance-specific risk factors (as well as potential protective factors) is critical to the future development of targeted treatment protocols.
journal_name
Psychol Medjournal_title
Psychological medicineauthors
Grant JD,Lynskey MT,Madden PA,Nelson EC,Few LR,Bucholz KK,Statham DJ,Martin NG,Heath AC,Agrawal Adoi
10.1017/S0033291715001518subject
Has Abstractpub_date
2015-12-01 00:00:00pages
3505-15issue
16eissn
0033-2917issn
1469-8978pii
S0033291715001518journal_volume
45pub_type
杂志文章abstract:BACKGROUND:Major depressive disorder (MDD) is accompanied by alterations in grey matter volume. However, the biological processes associated with regional structural perturbations remain elusive. METHODS:We applied integrative omics analysis to investigate specialized transcriptome signatures and translational determi...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291720002676
更新日期:2020-07-29 00:00:00
abstract:BACKGROUND:Studies investigating neurocognitive impairment in subjects with eating disorders (EDs) have reported heterogeneous patterns of impairment and, in some instances, no dysfunction. The present study aimed to define the pattern of neurocognitive impairment in a large sample of bulimia nervosa (BN) patients and ...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291710001303
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Sleep disruption is a common precursor to deterioration and relapse in people living with psychotic disorders. Understanding the temporal relationship between sleep and psychopathology is important for identifying and developing interventions which target key variables that contribute to relapse. METHODS:We...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291720004857
更新日期:2021-01-12 00:00:00
abstract:BACKGROUND:Understanding the pathways to psychiatric care and recognition of delay points are crucial for the development of interventions that aim to improve access to mental health-care services. METHOD:Over a 2-month period in 2003, a total of 1044 patients at the commencement of new episodes of care at Amanuel Spe...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291708003929
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND:This study integrated an experimental medicine approach and a randomized cross-over clinical trial design following CONSORT recommendations to evaluate a cognitive training (CT) intervention for attention deficit hyperactivity disorder (ADHD). The experimental medicine approach was adopted because of documen...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291720000288
更新日期:2020-02-24 00:00:00
abstract:BACKGROUND:It is unknown whether patient disengagement from early intervention services for psychosis is as prevalent in low- and middle-income countries (LMICs) like India, as it is in high-income countries (HICs). Addressing this gap, we studied two first-episode psychosis programs in Montreal, Canada and Chennai, In...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291720003359
更新日期:2020-09-28 00:00:00
abstract::The CAMCOG, the cognitive section of the Cambridge Examination for Mental Disorders of the Elderly (CAMDEX), was administered twice to 53 patients with a clinical diagnosis ranging from no dementia to severe dementia. The stability of the total CAMCOG score was high (0.97). Patients with less than moderate dementia we...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291700039003
更新日期:1993-02-01 00:00:00
abstract:BACKGROUND:Strategies to dissect phenotypic and genetic heterogeneity of major depressive disorder (MDD) have mainly relied on subphenotypes, such as age at onset (AAO) and recurrence/episodicity. Yet, evidence on whether these subphenotypes are familial or heritable is scarce. The aims of this study are to investigate...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291715000215
更新日期:2015-07-01 00:00:00
abstract::Twenty-three acute psychotic patients who were drug free at the time of testing performed a motor task designed to elicit many errors. Normal subjects and many of the psychotic patients were able to correct these errors in the absence of visual feedback. The ability to make such corrections depends on the subject know...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s003329170001240x
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:Aberrant functional connectivity within the default network is generally assumed to be involved in the pathophysiology of obsessive compulsive disorder (OCD); however, the genetic risk of default network connectivity in OCD remains largely unknown. METHOD:Here, we systematically investigated default network...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291713002250
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:This study examined two competing hypotheses concerning the association between diabetes and treatment for depression: (1) the detection/ascertainment bias hypothesis suggesting that those with diabetes are more likely to be diagnosed with and treated for depression because of increased medical attention and...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291713001566
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Anxiety disorders are very common and increase risk for suicide attempts. Little is known about predictors of increased risk specifically among individuals with anxiety disorders. The purpose of this study was to investigate whether specific anxiety disorders and other co-morbid psychiatric disorders, physic...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291712002504
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:Neuroticism has been shown to increase the risk of depression whereas extraversion is associated with a reduction of risk. These personality traits play a central role in aetiological theories of affective disorder but their role in schizophrenia is unclear. In this study, the risk for schizophrenia associat...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291701004044
更新日期:2001-08-01 00:00:00
abstract:BACKGROUND:Impaired emotion regulation may underlie exaggerated emotional reactivity in patients with obsessive compulsive disorder (OCD), yet instructed emotion regulation has never been studied in the disorder. METHOD:This study aimed to assess the neural correlates of emotion processing and regulation in 43 medicat...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291715001026
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Cognitive behavioral therapy (CBT) can be delivered efficaciously through various modalities, including telephone (T-CBT) and face-to-face (FtF-CBT). The purpose of this study was to explore predictors of outcome in T-CBT and FtF-CBT for depression. METHOD:A total of 325 depressed participants were randomiz...
journal_title:Psychological medicine
pub_type: 杂志文章,随机对照试验
doi:10.1017/S0033291715001208
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Early Intervention in Psychosis Services (EIS) for young people in England experiencing first-episode psychosis (FEP) were commissioned in 2002, based on an expected incidence of 15 cases per 100 000 person-years, as reported by schizophrenia epidemiology in highly urban settings. Unconfirmed reports from EI...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291710002461
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND:Although the traditional view of bipolar affective disorder is that the majority of patients have full remission between episodes, recent evidence suggests that residual cognitive deficits are present. The aim of this study was to determine whether memory and executive deficits were present in a well-defined...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291799002664
更新日期:2000-09-01 00:00:00
abstract::Sixty-four children taken to court for failure to attend school were reliably classified into 4 groups, according to whether they exhibited the features of 'school refusal' and/or 'truancy'. About a fifth of them were found to exhibit 'school refusal'; a third showed 'truancy'; less than a sixth exhibited both 'school...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291700021024
更新日期:1985-02-01 00:00:00
abstract:BACKGROUND:The neurocognitive deficits and other correlates of problem gambling are also observable in individuals with lower cognitive abilities, suggesting that a low IQ may be a determinant of problem gambling. There has been very little research into this possibility. This study aimed to investigate the characteris...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291713002195
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Victims of war captivity sometimes suffer from complex post-traumatic stress disorder (PTSD), a unique form of PTSD that entails various alterations in personality. These alterations may involve changes in attachment orientation. METHOD:The sample comprised two groups of veterans from the 1973 Yom Kippur Wa...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291708002808
更新日期:2008-10-01 00:00:00
abstract::Data are presented from a study of acculturation and psychiatric disorder in 291 Greek Cypriot immigrants from the general population of Camberwell, south London. We hypothesized that 'pre-acculturation' would protect against mental disorder, that difficulties in the period immediately after migration would increase t...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291700036631
更新日期:1990-11-01 00:00:00
abstract:BACKGROUND:Aberrant emotional biases have been reported in bipolar disorder (BD), but results are inconsistent. Despite the clinical relevance of chronic mood variability in BD, there is no previous research investigating how the extent of symptom fluctuations in bipolar disorder might relate to emotional biases. This ...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S003329171600180X
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:The potential effects of antipsychotic drugs on brain structure represent a key factor in understanding neuroanatomical changes in psychosis. This review addresses two issues: (1) do antipsychotic medications induce changes in total or regional human brain volumes and (2) do such effects depend on antipsycho...
journal_title:Psychological medicine
pub_type: 杂志文章,评审
doi:10.1017/S0033291709005315
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:Non-clinical psychosis-like symptoms (PLIKS) occur in about 15% of the population. It is not clear whether adverse events during early development alter the risk of developing PLIKS. We aimed to examine whether maternal infection, diabetes or pre-eclampsia during pregnancy, gestational age, perinatal cardiop...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291708005126
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Several questions remain unanswered regarding the magnitude and time course of cognitive improvement in response to antipsychotic treatment. The purpose of this study was to assess changes in cognitive performance in antipsychotic-naive or minimally medicated patients with first-episode schizophrenia during ...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291715000860
更新日期:2015-10-01 00:00:00
abstract::Preliminary data from the National Institute of Mental Health-Clinical Research Branch Collaborative Program on the Psychobiology of Depression dealing with the human growth hormone (hGH) response to the Insulin Tolerance Test (ITT) during the pre-treatment (drug-free) period of the study are presented in this paper. ...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291700043270
更新日期:1982-02-01 00:00:00
abstract:BACKGROUND:Previous research has yielded conflicting evidence regarding the long-term cognitive outcome of depression. Some studies have found evidence for a higher incidence of subsequent cognitive impairment or dementia, while others have refuted this. METHOD:Depression, neuropsychological performance, functional ab...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291703008195
更新日期:2003-10-01 00:00:00
abstract::The examination of moment-to-moment, 'micro-level' patterns of experience and behaviour using experience sampling methodology has contributed to our understanding of the 'macro-level' development of full-blown symptoms and disorders. This paper argues that the micro-level perspective can be used to identify the smalle...
journal_title:Psychological medicine
pub_type: 杂志文章,评审
doi:10.1017/S0033291713001979
更新日期:2014-05-01 00:00:00
abstract::We report the results of a survey of the burdens and needs for items of care of 45 supporters of long-term users of psychiatric day care facilities in Camberwell. The supporters reported high levels of disturbed behaviour and low levels of self-care skills in the attenders. They were also subject to high levels of soc...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/s0033291700024326
更新日期:1989-08-01 00:00:00
abstract:BACKGROUND:Evidence from high-income countries suggests that childhood trauma is associated with schizophrenia. Studies of childhood trauma and schizophrenia in low and middle income (LMIC) countries are limited. This study examined the prevalence of childhood traumatic experiences among cases and controls and the rela...
journal_title:Psychological medicine
pub_type: 杂志文章
doi:10.1017/S0033291719001703
更新日期:2020-07-01 00:00:00