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https://www.readbyqxmd.com/read/28527907/behavioral-and-cognitive-impact-of-early-life-stress-insights-from-an-animal-model
#1
Hesong Liu, Fatin Atrooz, Ankita Salvi, Samina Salim
BACKGROUND: Children subjected to traumatic events during childhood are reported to exhibit behavioral and cognitive deficits later in life, often leading to post-traumatic stress disorder (PTSD) and major depression. Interestingly, some children continue to remain normal despite being exposed to the same risk factors. These trauma-related behavioral and cognitive profiles across different stages of life are not well understood. Animal studies can offer useful insights. OBJECTIVE: The goal of this study was to determine the impact of early life exposure to traumatic events on behavioral and cognitive profile in rats by tracking the behavior of each rat at different ages...
May 17, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28523217/relation-between-patterns-of-intrinsic-network-connectivity-cognitive-functioning-and-symptom-presentation-in-trauma-exposed-patients-with-major-depressive-disorder
#2
Melissa Parlar, Maria Densmore, Geoffrey B Hall, Paul A Frewen, Ruth A Lanius, Margaret C McKinnon
OBJECTIVE: The present study investigated resting fMRI connectivity within the default mode (DMN), salience (SN), and central executive (CEN) networks in relation to neurocognitive performance and symptom severity in trauma-exposed patients with major depressive disorder (MDD). METHOD: Group independent component analysis was conducted among patients with MDD (n = 21), examining DMN, SN, and CEN connectivity in relation to neurocognitive performance and symptom severity...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28499272/effects-of-cortisol-on-the-memory-bias-for-emotional-words-a-study-in-patients-with-depression-and-healthy-participants-using-the-directed-forgetting-task
#3
Linn K Kuehl, Oliver T Wolf, Martin Driessen, Nicole Schlosser, Silvia Carvalho Fernando, Katja Wingenfeld
Mood congruent alterations in information processing such as an impaired memory bias for emotional information and impaired inhibitory functions are prominent features of a major depressive disorder (MDD). Furthermore, in MDD patients hypothalamic-pituitary-adrenal axis dysfunctions are frequently found. Impairing effects of stress or cortisol administration on memory retrieval as well as impairing stress effects on cognitive inhibition are well documented in healthy participants. In MDD patients, no effect of acute cortisol administration on memory retrieval was found...
April 29, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28493605/adverse-effects-of-obesity-on-cognitive-functions-in-individuals-at-ultra-high-risk-for-bipolar-disorder-results-from-the-global-mood-and-brain-science-initiative
#4
Roger S McIntyre, Rodrigo B Mansur, Yena Lee, Letícia Japiassú, Kun Chen, Rui Lu, Weicong Lu, Xiaodong Chen, Ting Li, Guiyun Xu, Kangguang Lin
BACKGROUND: The burden of illness associated with bipolar disorder (BD) warrants early pre-emption/prevention. Prediction models limited to psychiatric phenomenology have insufficient predictive power. Herein, we aimed to evaluate whether the presence of overweight/obesity is associated with greater cognitive decline in individuals at high risk (HR) or ultra high risk (UHR) for BD. METHODS: We conducted a retrospective analysis to investigate the moderational role of body mass index (BMI) on measures of cognitive function...
March 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28476208/transcriptome-alterations-in-prefrontal-pyramidal-cells-distinguish-schizophrenia-from-bipolar-and-major-depressive-disorders
#5
Dominique Arion, Zhiguang Huo, John F Enwright, John P Corradi, George Tseng, David A Lewis
BACKGROUND: Impairments in certain cognitive processes (e.g., working memory) are typically most pronounced in schizophrenia (SZ), intermediate in bipolar disorder, and least in major depressive disorder. Given that working memory depends, in part, on neural circuitry that includes pyramidal cells in layer 3 (L3) and layer 5 (L5) of the dorsolateral prefrontal cortex (DLPFC), we sought to determine if transcriptome alterations in these neurons were shared or distinctive for each diagnosis...
April 4, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28476207/real-time-functional-magnetic-resonance-imaging-amygdala-neurofeedback-changes-positive-information-processing-in-major-depressive-disorder
#6
Kymberly D Young, Masaya Misaki, Catherine J Harmer, Teresa Victor, Vadim Zotev, Raquel Phillips, Greg J Siegle, Wayne C Drevets, Jerzy Bodurka
BACKGROUND: In participants with major depressive disorder who are trained to upregulate their amygdalar hemodynamic responses during positive autobiographical memory recall with real-time functional magnetic resonance imaging neurofeedback (rtfMRI-nf) training, depressive symptoms diminish. This study tested whether amygdalar rtfMRI-nf also changes emotional processing of positive and negative stimuli in a variety of behavioral and imaging tasks. METHODS: Patients with major depressive disorder completed two rtfMRI-nf sessions (18 received amygdalar rtfMRI-nf, 16 received control parietal rtfMRI-nf)...
March 28, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28475603/the-impact-of-obesity-on-neuropsychological-functioning-in-adults-with-and-without-major-depressive-disorder
#7
Maria R Restivo, Margaret C McKinnon, Benicio N Frey, Geoffrey B Hall, Wasimuddin Syed, Valerie H Taylor
BACKGROUND: Evidence suggests obesity exerts a negative impact on cognition. Major Depressive Disorder (MDD) is also linked to problems in cognitive functioning. Obesity is highly prevalent in individuals with MDD and is linked to a failure to return to a full level of functioning. The study's objective was to investigate the effect of obesity on cognitive impairment in participants with MDD. METHODS: This study compared cognitive performance in obese individuals with MDD and two control populations (obese individuals without a psychiatric illness and non-obese controls)...
2017: PloS One
https://www.readbyqxmd.com/read/28460315/preliminary-evidence-concerning-the-pattern-and-magnitude-of-cognitive-dysfunction-in-major-depressive-disorder-using-cogstate-measures
#8
Margaret T Davis, Nicole DellaGioia, David Matuskey, Brian Harel, Paul Maruff, Robert H Pietrzak, Irina Esterlis
BACKGROUND: Cognitive deficits are common in individuals with major depressive disorder (MDD), and are associated with treatment non-responsiveness and poorer functional outcomes. Characterization of the nature and magnitude of deficits in this population has been limited in part by lack of brief, practical, and well-validated assessment measures. The goal of this study was to use a brief, practical, and repeatable computerized cognitive test battery from Cogstate to examine differences in cognitive functioning between individuals with MDD and healthy controls...
April 27, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28446254/functional-neuroimaging-of-sex-differences-in-autobiographical-memory-recall-in-depression
#9
K D Young, J Bodurka, W C Drevets
BACKGROUND: Females are more likely than males to develop major depressive disorder (MDD). The current study used fMRI to compare the neural correlates of autobiographical memory (AM) recall between males and females diagnosed with MDD. AM overgenerality is a persistent cognitive deficit in MDD, the magnitude of which is correlated with depressive severity only in females. Delineating the neurobiological correlates of this deficit may elucidate the nature of sex-differences in the diathesis for developing MDD...
April 27, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28443631/a-peripheral-epigenetic-signature-of-immune-system-genes-is-linked-to-neocortical-thickness-and-memory
#10
Virginie Freytag, Tania Carrillo-Roa, Annette Milnik, Philipp G Sämann, Vanja Vukojevic, David Coynel, Philippe Demougin, Tobias Egli, Leo Gschwind, Frank Jessen, Eva Loos, Wolfgang Maier, Steffi G Riedel-Heller, Martin Scherer, Christian Vogler, Michael Wagner, Elisabeth B Binder, Dominique J-F de Quervain, Andreas Papassotiropoulos
Increasing age is tightly linked to decreased thickness of the human neocortex. The biological mechanisms that mediate this effect are hitherto unknown. The DNA methylome, as part of the epigenome, contributes significantly to age-related phenotypic changes. Here, we identify an epigenetic signature that is associated with cortical thickness (P=3.86 × 10(-8)) and memory performance in 533 healthy young adults. The epigenetic effect on cortical thickness was replicated in a sample comprising 596 participants with major depressive disorder and healthy controls...
April 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28434642/-late-life-depression-or-prodromal-alzheimer-s-disease-which-tools-for-the-differential-diagnosis
#11
A-I Gasser, V Salamin, S Zumbach
INTRODUCTION: Depression and Alzheimer's disease are both very frequent in elderly people. Cognitive deficits are the hallmark of Alzheimer's disease, but they are also common in depressed elderly people who often present cognitive deficits such as memory, attention and executive function problems. On the other hand, people with early Alzheimer's disease demonstrate emotional and behavioral disorders generally encountered in depression such as loss of energy, apathy, mood disorder, and irritability...
April 20, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28429562/predictors-of-the-health-related-quality-of-life-of-chinese-people-with-major-neurocognitive-disorders-and-their-caregivers-the-roles-of-self-esteem-and-caregiver-s-burden
#12
Daniel Kim-Wan Young, Petrus Yat-Nam Ng, Timothy Kwok
AIM: The present research study aimed to identify and compare the clinical and non-clinical factors that predict the self-reported and proxy-reported health-related quality of life (HRQoL) of people with major neurocognitive disorder (PwND) who are living at home in a Chinese society. METHODS: A total of 57 Chinese PwND-family caregiver dyads that were using the services of local senior centers were recruited through a cross-sectional survey with convenience sampling...
April 20, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28407727/randomized-clinical-trial-of-real-time-fmri-amygdala-neurofeedback-for-major-depressive-disorder-effects-on-symptoms-and-autobiographical-memory-recall
#13
Kymberly D Young, Greg J Siegle, Vadim Zotev, Raquel Phillips, Masaya Misaki, Han Yuan, Wayne C Drevets, Jerzy Bodurka
OBJECTIVE: Patients with depression show blunted amygdala hemodynamic activity to positive stimuli, including autobiographical memories. The authors examined the therapeutic efficacy of real-time functional MRI neurofeedback (rtfMRI-nf) training aimed at increasing the amygdala's hemodynamic response to positive memories in patients with depression. METHOD: In a double-blind, placebo-controlled, randomized clinical trial, unmedicated adults with depression (N=36) were randomly assigned to receive two sessions of rtfMRI-nf either from the amygdala (N=19) or from a parietal control region not involved in emotional processing (N=17)...
April 14, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28406681/affective-enhancement-of-working-memory-is-maintained-in-depression
#14
Susanne Schweizer, Lauren Navrady, Lauren Breakwell, Rachel M Howard, Ann-Marie Golden, Aliza Werner-Seidler, Tim Dalgleish
We currently know little about how performance on assessments of working memory capacity (WMC) that are designed to mirror the concurrent task demands of daily life are impacted by the presence of affective information, nor how those effects may be modulated by depression-a syndrome where sufferers report global difficulties with executive processing. Across 3 experiments, we investigated WMC for sets of neutral words in the context of processing either neutral or affective (depressogenic) sentences, which had to be judged on semantic accuracy (Experiments 1 and 2) or self-reference (Experiment 3)...
April 13, 2017: Emotion
https://www.readbyqxmd.com/read/28387438/the-cognitive-footprint-of-psychiatric-and-neurological-conditions-cross-sectional-study-in-the-uk-biobank-cohort
#15
B Cullen, D J Smith, I J Deary, J J Evans, J P Pell
OBJECTIVE: We aimed to quantify the prevalence of cognitive impairment in adults with a history of mood disorder, schizophrenia, multiple sclerosis or Parkinson's disease, within a large general population cohort. METHOD: Cross-sectional study using UK Biobank data (n = 502 642). Psychiatric and neurological exposure status was ascertained via self-reported diagnoses, hospital records and questionnaires. Impairment on reasoning, reaction time and memory tests was defined with reference to a single unexposed comparison group...
June 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28387209/college-binge-drinking-and-its-association-with-depression-and-anxiety-a-prospective-observational-study
#16
R Nourse, P Adamshick, J Stoltzfus
OBJECTIVE: Binge drinking is a significant public health problem across college campuses in the United States. Despite substantial research and the use of evidence-based methods, the binge drinking culture remains an obstinate health crisis on campuses. This study examined the current binge drinking rate on a selected college campus, the association between binge drinking and anxiety and depression as well as the associated consequences of students' alcohol use. METHODS: A sample of 201 students from a small, private Mid-Atlantic college completed validated scales as well as demographics and questionnaires...
March 2017: East Asian Archives of Psychiatry: Official Journal of the Hong Kong College of Psychiatrists
https://www.readbyqxmd.com/read/28385626/abnormal-self-schema-in-semantic-memory-in-major-depressive-disorder-evidence-from-event-related-brain-potentials
#17
Michael Kiang, Faranak Farzan, Daniel M Blumberger, Marta Kutas, Margaret C McKinnon, Vinay Kansal, Tarek K Rajji, Zafiris J Daskalakis
An overly negative self-schema is a proposed cognitive mechanism of major depressive disorder (MDD). Self-schema - one's core conception of self, including how strongly one believes one possesses various characteristics - is part of semantic memory (SM), our knowledge about concepts and their relationships. We used the N400 event-related potential (ERP) - elicited by meaningful stimuli, and reduced by greater association of the stimulus with preceding context - to measure association strength between self-concept and positive, negative, and neutral characteristics in SM...
April 3, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28382870/late-versus-early-onset-depression-in-elderly-patients-vascular-risk-and-cognitive-impairment
#18
Abdelhamid H Hashem, Maged Al-Adrousy Gomaa, Mohamed Nasr Elden Sadek, Ola Osama Khalaf
BACKGROUND: Three-quarters of patients with major depressive disorder have late-onset depression. Late-onset depression is more often associated with cognitive impairment than early-onset depression and evidences showed a relationship between vascular factors and late-life depression. OBJECTIVES: To compare cognitive functions between late-onset (≥60 years) and early-onset (<60 years) depression in elderly patients and to highlight the effect of vascular risk factors in elderly patients with late and early onset depression...
April 4, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28364591/seasonal-affective-disorder-and-alcohol-abuse-disorder-in-a-population-based-study
#19
Isabel Morales-Muñoz, Seppo Koskinen, Timo Partonen
Seasonal affective disorder (SAD) is a recurrent major depressive disorder with a seasonal pattern, which is characterized by sad mood, low energy, longer sleep duration and carbohydrate craving. Furthermore, seasonal changes in mood and behavior may be closely related to alcohol use disorder (AUD). Nevertheless, there is scarce research on the study of cognitive impairments in SAD and AUD. We aimed to examine the relationship between the prevalence between SAD and AUD patients, and how cognitive functioning might be related to these variables...
March 18, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28342378/elevated-triglyceride-levels-are-associated-with-cognitive-impairments-among-patients-with-major-depressive-disorder
#20
Tian Nan Shao, Guang Zhong Yin, Xiao Li Yin, Jing Qin Wu, Xiang Dong Du, Hong Liang Zhu, Jia Hong Liu, Xiao Qiong Wang, Dong Wu Xu, Wen Jie Tang, Li Hui
BACKGROUND: Cognitive deficits have been identified as one of core clinical symptoms of major depressive disorder (MDD). Accumulating evidence indicated that triglycerides (TG) might be associated with MDD and cognitive decline. OBJECTIVE: This study examined whether patients with MDD had poorer cognitive functions than healthy controls, and further investigate whether TG levels were involved in MDD, and its cognitive impairments in a Han Chinese population. METHOD: 115 patients with MDD and 119 healthy controls were enrolled...
May 2017: Comprehensive Psychiatry
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