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Cognitive psychiatry

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https://www.readbyqxmd.com/read/28220477/parent-child-learning-interactions-a-review-of-the-literature-on-scaffolding
#1
Roni Mermelshtine
BACKGROUND: Scaffolding can be observed during learning-based interactions, when interventions by parents are adjusted according to children's observed abilities, with the main goal of enabling the child to work independently (Wood et al., 1976, Journal of child psychology and psychiatry, 17, 89). Such contingent instruction behaviours occur from infancy, and are said to be relevant for children's development of executive function, language acquisition, and cognitive and academic abilities...
February 21, 2017: British Journal of Educational Psychology
https://www.readbyqxmd.com/read/28220082/synaptic-and-neuronal-autoantibody-associated-psychiatric-syndromes-controversies-and-hypotheses
#2
Adam Al-Diwani, Thomas A Pollak, Alexander E Langford, Belinda R Lennox
Autoimmune encephalitis (AE) mediated by antibodies against synaptic and neuronal surface targets frequently presents with a psychiatric syndrome. In these patients, removal of autoantibodies treats the disease and outcomes are closely linked to early intervention. The discovery of these autoantibodies in isolated psychiatric syndromes has raised the possibility that these patients may derive similar benefits from immunotherapy, a potentially transformational approach to the treatment of mental illness. Although open-label case series suggest impressive therapeutic outcomes, the pathological relevance of these autoantibodies outside of canonical presentations is debated...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28220044/pregnenolone-blocks-cannabinoid-induced-acute-psychotic-like-states-in-mice
#3
A Busquets-Garcia, E Soria-Gómez, B Redon, Y Mackenbach, M Vallée, F Chaouloff, M Varilh, G Ferreira, P-V Piazza, G Marsicano
Cannabis-induced acute psychotic-like states (CIAPS) represent a growing health issue, but their underlying neurobiological mechanisms are poorly understood. The use of antipsychotics and benzodiazepines against CIAPS is limited by side effects and/or by their ability to tackle only certain aspects of psychosis. Thus, safer wide-spectrum treatments are currently needed. Although the blockade of cannabinoid type-1 receptor (CB1) had been suggested as a therapeutical means against CIAPS, the use of orthosteric CB1 receptor full antagonists is strongly limited by undesired side effects and low efficacy...
February 21, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28217838/the-experiences-of-people-with-dementia-and-their-carers-participating-in-individual-cognitive-stimulation-therapy
#4
Phuong Leung, Lauren Yates, Vasiliki Orgeta, Fara Hamidi, Martin Orrell
BACKGROUND: The carer-delivered individual cognitive stimulation therapy (iCST) was developed to improve cognition and quality of life of people with dementia. This study aims to explore people with dementia and family carers' concepts of mental stimulation and experiences of participating in the iCST intervention. METHODS: A sub-sample of 23 dyads of people with dementia and their family carers who completed the iCST intervention took part in semi-structured in-depth interviews...
February 20, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28211553/the-assessment-of-schizotypy-by-the-o-life-oxford-liverpool-inventory-for-feelings-and-experiences-in-patients-with-schizophrenia-and-affective-disorders
#5
Daria Dembińska-Krajewska, Janusz Rybakowski
OBJECTIVES: The aim of the study was to assess schizotypy by using the Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE), in the groups of patients with schizophrenia, bipolar disorder (BD) and unipolar (recurrent) depression (UD). An important element of the study was to compare - in terms of similarity - the results obtained in schizophrenia and BD, and - in terms of differences - the results obtained in BD and UD. METHODS: The study involved 58 patients with schizophrenia (35 men, 23 women, mean age = 34...
December 23, 2016: Psychiatria Polska
https://www.readbyqxmd.com/read/28195316/structural-hierarchy-of-autism-spectrum-disorder-symptoms-an-integrative-framework
#6
Hyunsik Kim, Cara M Keifer, Craig Rodriguez-Seijas, Nicholas R Eaton, Matthew D Lerner, Kenneth D Gadow
BACKGROUND: In an attempt to resolve questions regarding the symptom classification of autism spectrum disorder (ASD), previous research generally aimed to demonstrate superiority of one model over another. Rather than adjudicating which model may be optimal, we propose an alternative approach that integrates competing models using Goldberg's bass-ackwards method, providing a comprehensive understanding of the underlying symptom structure of ASD. METHODS: The study sample comprised 3,825 individuals, consecutive referrals to a university hospital developmental disabilities specialty clinic or a child psychiatry outpatient clinic...
February 14, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28194005/genetic-inhibition-of-neurotransmission-reveals-role-of-glutamatergic-input-to-dopamine-neurons-in-high-effort-behavior
#7
M A Hutchison, X Gu, M F Adrover, M R Lee, T S Hnasko, V A Alvarez, W Lu
Midbrain dopamine neurons are crucial for many behavioral and cognitive functions. As the major excitatory input, glutamatergic afferents are important for control of the activity and plasticity of dopamine neurons. However, the role of glutamatergic input as a whole onto dopamine neurons remains unclear. Here we developed a mouse line in which glutamatergic inputs onto dopamine neurons are specifically impaired, and utilized this genetic model to directly test the role of glutamatergic inputs in dopamine-related functions...
February 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28194004/genetic-contributions-to-self-reported-tiredness
#8
V Deary, S P Hagenaars, S E Harris, W D Hill, G Davies, D C M Liewald, A M McIntosh, C R Gale, I J Deary
Self-reported tiredness and low energy, often called fatigue, are associated with poorer physical and mental health. Twin studies have indicated that this has a heritability between 6 and 50%. In the UK Biobank sample (N=108 976), we carried out a genome-wide association study (GWAS) of responses to the question, 'Over the last two weeks, how often have you felt tired or had little energy?' Univariate GCTA-GREML found that the proportion of variance explained by all common single-nucleotide polymorphisms for this tiredness question was 8...
February 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28194003/lower-levels-of-the-glial-cell-marker-tspo-in-drug-naive-first-episode-psychosis-patients-as-measured-using-pet-and-11-c-pbr28
#9
K Collste, P Plavén-Sigray, H Fatouros-Bergman, P Victorsson, M Schain, A Forsberg, N Amini, S Aeinehband, S Erhardt, C Halldin, L Flyckt, L Farde, S Cervenka
Several lines of evidence are indicative of a role for immune activation in the pathophysiology of schizophrenia. Nevertheless, studies using positron emission tomography (PET) and radioligands for the translocator protein (TSPO), a marker for glial activation, have yielded inconsistent results. Whereas early studies using a radioligand with low signal-to-noise in small samples showed increases in patients, more recent studies with improved methodology have shown no differences or trend-level decreases. Importantly, all patients investigated thus far have been on antipsychotic medication, and as these compounds may dampen immune cell activity, this factor limits the conclusions that can be drawn...
February 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28183085/reviving-research-on-medication-attitudes-for-improving-pharmacotherapy-focusing-on-adherence
#10
Carlos De Las Cuevas, Jose de Leon
There is little current interest in research into patients' attitudes toward medications. In the 1960s, psychiatric researchers including Uhlenhuth, Rickels and Covi focused on this area, but this research topic needs to be revived in the 21st century. The Health Belief Model may hold potential for doing this. This model was initially developed by 2 health psychologists, Rosenstock and Becker, to explain why patients did not follow medical interventions. The application of this model to study medication adherence in psychiatric outpatients has provided multiple findings including the conclusions that adherence is associated with: (1) the balance between internal and external health control beliefs, (2) psychological reactance, (3) patients' attitudes toward prescribed drug treatment in general and (4) the balance between the necessity of taking medications versus the concerns derived from adverse drug reactions (ADRs)...
2017: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/28167838/glrb-allelic-variation-associated-with-agoraphobic-cognitions-increased-startle-response-and-fear-network-activation-a-potential-neurogenetic-pathway-to-panic-disorder
#11
J Deckert, H Weber, C Villmann, T B Lonsdorf, J Richter, M Andreatta, A Arias-Vasquez, L Hommers, L Kent, C Schartner, S Cichon, C Wolf, N Schaefer, C R von Collenberg, B Wachter, R Blum, D Schümann, R Scharfenort, J Schumacher, A J Forstner, C Baumann, M A Schiele, S Notzon, P Zwanzger, J G E Janzing, T Galesloot, L A Kiemeney, A Gajewska, E Glotzbach-Schoon, A Mühlberger, G Alpers, T Fydrich, L Fehm, A L Gerlach, T Kircher, T Lang, A Ströhle, V Arolt, H-U Wittchen, R Kalisch, C Büchel, A Hamm, M M Nöthen, M Romanos, K Domschke, P Pauli, A Reif
The molecular genetics of panic disorder (PD) with and without agoraphobia (AG) are still largely unknown and progress is hampered by small sample sizes. We therefore performed a genome-wide association study with a dimensional, PD/AG-related anxiety phenotype based on the Agoraphobia Cognition Questionnaire (ACQ) in a sample of 1370 healthy German volunteers of the CRC TRR58 MEGA study wave 1. A genome-wide significant association was found between ACQ and single non-coding nucleotide variants of the GLRB gene (rs78726293, P=3...
February 7, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28167837/neural-mechanisms-of-mismatch-negativity-dysfunction-in-schizophrenia
#12
M Lee, P Sehatpour, M J Hoptman, P Lakatos, E C Dias, J T Kantrowitz, A M Martinez, D C Javitt
Schizophrenia is associated with cognitive deficits that reflect impaired cortical information processing. Mismatch negativity (MMN) indexes pre-attentive information processing dysfunction at the level of primary auditory cortex. This study investigates mechanisms underlying MMN impairments in schizophrenia using event-related potential, event-related spectral decomposition (ERSP) and resting state functional connectivity (rsfcMRI) approaches. For this study, MMN data to frequency, intensity and duration-deviants were analyzed from 69 schizophrenia patients and 38 healthy controls...
February 7, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28167616/towards-trans-diagnostic-mechanisms-in-psychiatry-neurobehavioral-profile-of-rats-with-a-loss-of-function-point-mutation-in-the-dopamine-transporter-gene
#13
Valentina Vengeliene, Anton Bespalov, Martin Roßmanith, Sandra Horschitz, Stefan Berger, Ana L Relo, Hamid R Noori, Peggy Schneider, Thomas Enkel, Dusan Bartsch, Miriam Schneider, Berthold Behl, Anita C Hansson, Patrick Schloss, Rainer Spanagel
The Research Domain Criteria (RDoC) matrix has been developed to reorient psychiatric research towards measurable behavioral dimensions and underlying mechanisms. Here we used a new genetic rat model with a loss of function point mutation in the dopamine transporter (DAT) gene (Slc6a3_N157K) to systematically study the RDoC matrix (www.nimh.nih.gov/research-priorities/rdoc/constructs/rdoc-matrix.shtml). First, we examined the impact of the Slc6a3_N157K mutation on monoaminergic signaling. We then performed behavioral tests representing each of the five RDoC domains - negative and positive valence systems, cognitive, social, and in arousal/regulatory systems...
February 6, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28163496/association-of-cognitive-and-noncognitive-symptoms-of-delirium-a-study-from-consultation-liaison-psychiatry-set-up
#14
Sandeep Grover, Aseem Mehra, Subho Chakrabarti, Ajit Avasthi
AIMS: This study aims to evaluate the cognitive functions of patients with delirium using Hindi Mental Status Examination (HMSE), to study the correlation of cognitive functions assessed by HMSE with noncognitive symptoms as assessed using Delirium Rating Scale-Revised 1998 (DRS-R-98) and to study the association of cognitive functions assessed using HMSE and DRS-R98. METHODS: A total of 76 consecutive patients fulfilling the diagnosis of delirium were evaluated on DRS-R-98, HMSE, and Short Informant Questionnaire on Cognitive Decline in the Elderly (retrospective IQCODE)...
December 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28141713/developmental-regression-depression-and-psychosocial-stress-in-an-adolescent-with-down-syndrome
#15
David S Stein, Kerim M Munir, Andrea J Karweck, Emily J Davidson, Martin T Stein
Kristen is a 13-year-old girl with Down syndrome (DS) who was seen urgently with concerns of cognitive and developmental regression including loss of language, social, and toileting skills. The evaluation in the DS clinic focused on potential medical diagnoses including atlantoaxial joint instability, vitamin deficiency, obstructive sleep apnea (OSA), and seizures. A comprehensive medical evaluation yielded only a finding of moderate OSA. A reactive depression was considered in association with several psychosocial factors including moving homes, entering puberty/onset of menses, and classroom change from an integrated setting to a self- contained classroom comprising unfamiliar peers with behavior challenges...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28141710/the-curse-of-the-dolphins-cognitive-decline-and-psychosis
#16
Randall Phelps, Anne Tsai, Arlene Hagen, Joseph Pinter, Raegan Smith, Martin T Stein
Isela is an 11-year-old Mexican-American girl with mild intellectual disability. During a vacation with her family, she went swimming with dolphins. A few days later, Isela awoke at night with laughing spells; during the day, she was pacing, aggressive, and had a decline in self-care and communication skills. Her parents attributed the symptoms to the dolphins. She was evaluated by a pediatric neurologist. The sleep-deprived electroencephalogram, brain magnetic resonance imaging, lumbar puncture, and thyroid function tests were normal...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28135816/the-youth-mood-clinic-an-innovative-service-for-the-treatment-of-severe-and-complex-depression
#17
Simon M Rice, Steve Halperin, Sara Cahill, Ingrid Cranston, Mark Phelan, Sarah E Hetrick, Simon Blaikie, Jane Edwards, John Koutsogiannis, Christopher G Davey
OBJECTIVE: Depression is the leading cause of disability for Australians from late adolescence through mid-adulthood, and effective treatments can positively impact subsequent life course trajectories. A treatment model for the management of complex youth depression, characterised by symptom severity, multi-morbidity and ongoing suicidality is presented. CONCLUSIONS: The Youth Mood Clinic (YMC) provides multidisciplinary, team-based treatment for young people aged 15-25 years...
January 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28130814/serum-tumour-necrosis-factor-%C3%AE-and-interleukin-6-levels-in-alzheimer-s-disease-and-mild-cognitive-impairment
#18
Yo Sup Kim, Kang Joon Lee, Hyun Kim
BACKGROUND: Neuroinflammation has been recognized as a feature of Alzheimer's disease (AD), and mild cognitive impairment (MCI) is believed to share several pathological features with AD. The aim of the present study was to compare serum cytokine levels between patients with AD, subjects with MCI, and healthy controls, and to assess the correlation between cytokine levels and cognitive performance in these subjects. METHODS: Participants included 35 patients with AD, 29 subjects with MCI, and 28 healthy controls from the Department of Psychiatry of IIlsan Paik Hospital in South Korea...
January 28, 2017: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/28130745/sex-attracts-neural-correlates-of-sexual-preference-under-cognitive-demand
#19
Kirsten Jordan, Katrin Wieser, Isabel Methfessel, Peter Fromberger, Peter Dechent, Jürgen L Müller
Neurofunctional correlates of sexual arousal are of interest in basic research as well as in clinical science. In forensic psychiatry, it is important to use designs which are potentially robust against susceptibility to manipulation or deception. We tested a new design to measure neurofunctional correlates of sexual preference. Twenty-two healthy heterosexual men had to solve a mental rotation task while sexually preferred or non-preferred distractors were presented simultaneously. With this challenging active task, subjects' possibility to manipulate their response to the sexual stimuli should be lower than in easier tasks and in passive designs...
January 27, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28127512/side-of-onset-of-parkinson-s-disease-in-relation-to-neuropsychological-measures
#20
Edward J Modestino, Chioma Amenechi, AnnaMarie Reinhofer, Patrick O'Toole
BACKGROUND: Parkinson's disease (PD) usually emerges with a unilateral side-of-onset (left-onset: LOPD; right-onset: ROPD; Marinus & van Hilten, 2015) due to an asymmetrical degeneration of striatal dopaminergic neurons (Donnemiller et al., Brain, 135, 2012, 3348). This has led to a body of research exploring the cognitive, neuropsychological, and clinical differences between LOPD and ROPD (e.g., Verreyt et al., Neuropsychology Review, 21, 2011, 405). METHODS: Thirty ROPD and 14 LOPD cases were drawn from a Boston clinic specializing in PD...
January 2017: Brain and Behavior
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