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Glutamate and choline levels predict individual differences in reading ability in emergent readers

Test 3 March 29, 2016 - 2:03pm
Reading disability is a brain-based difficulty in acquiring fluent reading skills that affects significant numbers of children. Although neuroanatomical and neurofunctional networks involved in typical and atypical reading are increasingly well characterized, the underlying neurochemical bases of individual differences in reading development are virtually unknown.
Categories: News

Genetic modifiers of cognitive maintenance among older adults

Test 3 March 29, 2016 - 2:02pm
Identify genetic factors associated with cognitive maintenance in late life and assess their association with gray matter (GM) volume in brain networks affected in aging.
Categories: News

Recent challenges to the psychiatric diagnostic nosology: a focus on the genetics and genomics of neurodevelopmental disorders

Test 3 March 29, 2016 - 2:02pm
Recent advances in the genetics of neurodevelopmental disorder (NDD) have demonstrated that rare mutations play a role not only in Mendelian syndromes, but in complex, common forms of NDDs as well.
Categories: News

Multiple conserved regulatory domains promote Fezf2 expression in the developing cerebral cortex

Test 3 March 29, 2016 - 2:01pm
The genetic programs required for development of the cerebral cortex are under intense investigation. However, non-coding DNA elements that control the expression of developmentally important genes remain poorly defined. Here we investigate the regulation of Fezf2, a transcription factor that is necessary for the generation of deep-layer cortical projection neurons.
Categories: News

A variant of sparse partial least squares for variable selection and data exploration

Test 3 March 29, 2016 - 2:00pm
When data are sparse and/or predictors multicollinear, current implementation of sparse partial least squares (SPLS) does not give estimates for non-selected predictors nor provide a measure of inference. In response, an approach termed "all-possible" SPLS is proposed, which fits a SPLS model for all tuning parameter values across a set grid.
Categories: News

Relationship between 25-hydroxyvitamin D and cognitive function in older adults: the Health, Aging and Body Composition Study

Test 3 March 29, 2016 - 2:00pm
To examine the relationship between 25-hydroxyvitamin D (25(OH)D) levels and cognitive performance over time in older adults in the Health, Aging and Body Composition (Health ABC) Study.
Categories: News

Functions of non-suicidal self-injury in adolescents and young adults with Borderline Personality Disorder symptoms

Test 3 March 29, 2016 - 2:00pm
Rates of deliberate non-suicidal self-injury (NSSI) increase during adolescence and young adulthood, particularly in clinical samples, making these important developmental stages for understanding the functions of NSSI. Borderline Personality Disorder (BPD) symptoms also begin to emerge in adolescence, though little research has examined relationships between BPD symptoms and the functions of NSSI in youth, the primary goal of the present study.
Categories: News

Do manualized treatments for depression reduce insomnia symptoms?

Test 3 March 29, 2016 - 1:56pm
Researchers evaluated the effect of manualized treatments for depression on comorbid symptoms of insomnia.
Categories: News

Contribution of Alzheimer disease to mortality in the United States

Test 3 March 29, 2016 - 1:56pm
Over an average of 8 years, 559 participants (21.8%) without dementia at baseline developed AD dementia and 1,090 (42.4%) died. Median time from AD dementia diagnosis to death was 3.8 years.
Categories: News

Influence of the X-chromosome on neuroanatomy: evidence from Turner and Klinefelter syndromes

Test 3 March 29, 2016 - 1:55pm
Studies of sex effects on neurodevelopment have traditionally focused on animal models investigating hormonal influences on brain anatomy. However, more recent evidence suggests that sex chromosomes may also have direct upstream effects that act independently of hormones.
Categories: News

DAWN: a framework to identify autism genes and subnetworks using gene expression and genetics

Test 3 March 29, 2016 - 1:55pm
De novo loss-of-function (dnLoF) mutations are found twofold more often in autism spectrum disorder (ASD) probands than their unaffected siblings. Multiple independent dnLoF mutations in the same gene implicate the gene in risk and hence provide a systematic, albeit arduous, path forward for ASD genetics. It is likely that using additional non-genetic data will enhance the ability to identify ASD genes.
Categories: News

White matter hyperintensities are associated with amyloid burden in APOE4 non-carriers

Test 3 March 29, 2016 - 1:54pm
Previous preclinical studies have suggested a close relationship between cerebrovascular disease (CVD) and Alzheimer's disease. However, a direct correlation between CVD and amyloid burden has not yet been shown in humans.
Categories: News

A mixed-methods study of young adults' receptivity to using Facebook for smoking cessation: if you build it, will they come?

Test 3 March 29, 2016 - 1:53pm
Participants (N = 570) completed an online survey of tobacco and social media use. A subset of 30 survey completers, stratified by motivation to quit smoking, agreed to participate in a structured interview over online chat. Themes were identified by using grounded theory.
Categories: News

A mixed-methods study of young adults' receptivity to using Facebook for smoking cessation: if you build it, will they come?

Test 2 March 29, 2016 - 1:53pm
Participants (N = 570) completed an online survey of tobacco and social media use. A subset of 30 survey completers, stratified by motivation to quit smoking, agreed to participate in a structured interview over online chat. Themes were identified by using grounded theory.

Associations between subjective sleep quality and brain volume in Gulf War veterans

Test 3 March 29, 2016 - 1:51pm
To investigate whether subjective sleep quality is associated with brain volume independent of comorbid psychiatric conditions.
Categories: News

In people with ultra high risk symptoms, risk of transition to psychotic disorders is highest in the first 2 years

Test 3 March 29, 2016 - 1:50pm
Long-term follow-up of a group at ultra high risk ("prodromal") for psychosis: the PACE 400 study.
Categories: News

Depressive Symptoms and Longitudinal Changes in Cognition: Women's Health Initiative Study of Cognitive Aging

Test 3 March 29, 2016 - 1:48pm
Elevated depressive symptoms (DS) are associated with incident mild cognitive impairment and probable dementia in postmenopausal women. We examined the association of elevated DS with domain-specific cognitive changes and the moderating role of cardiovascular risk factor severity and cardiovascular disease (CVD).
Categories: News

Synergistic effects of ischemia and β-amyloid burden on cognitive decline in patients with subcortical vascular mild cognitive impairment

Test 3 March 29, 2016 - 1:48pm
Cerebrovascular disease (CVD) and Alzheimer disease are significant causes of cognitive impairment in the elderly. However, few studies have evaluated the relationship between CVD and β-amyloid burden in living humans or their synergistic effects on cognition. Thus, there is a need for better understanding of mild cognitive impairment (MCI) before clinical deterioration begins.
Categories: News

Dapper Antagonist of Catenin-1 (Dact1) contributes to dendrite arborization in forebrain cortical interneurons

Test 3 March 29, 2016 - 1:47pm
In mice, genetically engineered knockout of the Dapper Antagonist of Catenin-1 (Dact1) locus, which encodes a scaffold protein involved in Wnt signaling, leads to decreased excitatory input formation on dendrites of developing forebrain neurons. We have previously demonstrated this in both (excitatory, glutamatergic) pyramidal neurons of the hippocampus and in (inhibitory GABAergic) interneurons of the cortex.
Categories: News

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