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Imaging in Psychiatry

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https://www.readbyqxmd.com/read/29307222/-professional-identity-of-hungarian-psychiatrist-experiences-of-a-study
#1
Adrienne Incze, Szabolcs Kéri, György Szekeres
INTRODUCTION: A main determinant of professional identity is the integrity of the discipline. The complexity of psychiatry in biological, psychological and sociological aspects is a typical instance of the necessity for integration. AIM: Based on the bio-psycho-social dimensions and on their opinion about acceptance of psychiatry, we explored the professional identities of physicians working in Hungarian contemporary psychiatry. METHOD: Voluntary, anonymous responses were collected by using a 10-point evaluation scale on professional attitude, appreciation of psychiatry from lay society and other medical professions, and the importance of biology, psychology and sociology within psychiatry...
January 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29289377/treatment-of-paraphilic-disorders-in-sexual-offenders-or-men-with-a-risk-of-sexual-offending-with-luteinizing-hormone-releasing-hormone-agonists-an-updated-systematic-review
#2
REVIEW
Daniel Turner, Peer Briken
BACKGROUND: Different pharmacologic agents are used in the treatment of paraphilic disorders in sexual offenders or men with a risk of sexual offending, with luteinizing hormone-releasing hormone (LHRH) agonists being the agents introduced more recently to treatment regimens. AIM: To summarize the relevant literature concerning LHRH agonist treatment of paraphilic disorders in sexual offenders and update the previously published systematic review by Briken et al (J Clin Psychiatry 2003;64:890-897)...
January 2018: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29216834/inventory-of-real-world-data-sources-in-parkinson-s-disease
#3
Audrey Tanguy, Linus Jönsson, Lianna Ishihara
BACKGROUND: Real world data have an important role to play in the evaluation of epidemiology and burden of disease; and in assisting health-care decision-makers, especially related to coverage and payment decisions. However, there is currently no overview of the existing longitudinal real world data sources in Parkinson's disease (PD) in the USA. Such an assessment can be very helpful, to support a future effort to harmonize real world data collection and use the available resources in an optimal way...
December 8, 2017: BMC Neurology
https://www.readbyqxmd.com/read/29206007/christian-psychopathology-psychiatry-and-knowledge-for-the-sake-of-salvation-in-the-early-years-of-francoism
#4
Ángel González de Pablo
After World War II came to an end, General Franco's regime attempted to step aside from the defeated fascist states by emphasizing its Catholic character. The change of image culminated in 1947 with the establishment of Spain as a Catholic State by means of the Law of Succession. This process generated the national catholic ideology, which became, during the first decades of the dictatorship, the hegemonic instrument for the transformation of Spanish society in an anti-modernizing way. Scientific activity was not excluded from these changes, and a Catholic science conveying universal values and in harmony with the faith was strongly encouraged...
2017: Dynamis
https://www.readbyqxmd.com/read/29203852/the-dynamics-of-stress-a-longitudinal-mri-study-of-rat-brain-structure-and-connectome
#5
R Magalhães, D A Barrière, A Novais, F Marques, P Marques, J Cerqueira, J C Sousa, A Cachia, F Boumezbeur, M Bottlaender, T M Jay, S Mériaux, N Sousa
Stress is a well-established trigger for a number of neuropsychiatric disorders, as it alters both structure and function of several brain regions and its networks. Herein, we conduct a longitudinal neuroimaging study to assess how a chronic unpredictable stress protocol impacts the structure of the rat brain and its functional connectome in both high and low responders to stress. Our results reveal the changes that stress triggers in the brain, with structural atrophy affecting key regions such as the prelimbic, cingulate, insular and retrosplenial, somatosensory, motor, auditory and perirhinal/entorhinal cortices, the hippocampus, the dorsomedial striatum, nucleus accumbens, the septum, the bed nucleus of the stria terminalis, the thalamus and several brain stem nuclei...
December 5, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29203849/an-integrated-brain-behavior-model-for-working-memory
#6
D A Moser, G E Doucet, A Ing, D Dima, G Schumann, R M Bilder, S Frangou
Working memory (WM) is a central construct in cognitive neuroscience because it comprises mechanisms of active information maintenance and cognitive control that underpin most complex cognitive behavior. Individual variation in WM has been associated with multiple behavioral and health features including demographic characteristics, cognitive and physical traits and lifestyle choices. In this context, we used sparse canonical correlation analyses (sCCAs) to determine the covariation between brain imaging metrics of WM-network activation and connectivity and nonimaging measures relating to sensorimotor processing, affective and nonaffective cognition, mental health and personality, physical health and lifestyle choices derived from 823 healthy participants derived from the Human Connectome Project...
December 5, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29203847/reconceptualization-of-translocator-protein-as-a-biomarker-of-neuroinflammation-in-psychiatry
#7
T Notter, J M Coughlin, A Sawa, U Meyer
A great deal of interest in psychiatric research is currently centered upon the pathogenic role of inflammatory processes. Positron emission tomography (PET) using radiolabeled ligands selective for the 18 kDa translocator protein (TSPO) has become the most widely used technique to assess putative neuroimmune abnormalities in vivo. Originally used to detect discrete neurotoxic damages, TSPO has generally turned into a biomarker of 'neuroinflammation' or 'microglial activation'. Psychiatric research has mostly accepted these denotations of TSPO, even if they may be inadequate and misleading under many pathological conditions...
January 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29189628/screening-for-posttraumatic-stress-disorder-in-civilians-with-mangled-hand-injury-a-practice-enhancement-approach
#8
Ruth A Cook, Marie-Annette Brown, Christopher Allan, Karen Schepp, Joachim G Voss
Posttraumatic stress disorder (PTSD) is a symptom cluster of intrusion, avoidance, negative alteration in cognition, and alteration in arousal and reactivity following trauma. PTSD occurs frequently after a physical trauma such as a severe hand injury. It is often not recognized and consequently untreated. Previous research has shown that 10%-40% of civilian trauma survivors experience PTSD in the first 12 months after injury. There is great urgency to identify patients in the early stage of recovery from trauma, as PTSD becomes more difficult to treat in its chronic form...
November 2017: Orthopaedic Nursing
https://www.readbyqxmd.com/read/29179742/neuroimaging-genomics-in-psychiatry-a-translational-approach
#9
REVIEW
Mary S Mufford, Dan J Stein, Shareefa Dalvie, Nynke A Groenewold, Paul M Thompson, Neda Jahanshad
Neuroimaging genomics is a relatively new field focused on integrating genomic and imaging data in order to investigate the mechanisms underlying brain phenotypes and neuropsychiatric disorders. While early work in neuroimaging genomics focused on mapping the associations of candidate gene variants with neuroimaging measures in small cohorts, the lack of reproducible results inspired better-powered and unbiased large-scale approaches. Notably, genome-wide association studies (GWAS) of brain imaging in thousands of individuals around the world have led to a range of promising findings...
November 27, 2017: Genome Medicine
https://www.readbyqxmd.com/read/29133954/exogenous-ghrelin-administration-increases-alcohol-self-administration-and-modulates-brain-functional-activity-in-heavy-drinking-alcohol-dependent-individuals
#10
M Farokhnia, E N Grodin, M R Lee, E N Oot, A N Blackburn, B L Stangl, M L Schwandt, L A Farinelli, R Momenan, V A Ramchandani, L Leggio
Preclinical evidence suggests that ghrelin, a peptide synthesized by endocrine cells of the stomach and a key component of the gut-brain axis, is involved in alcohol seeking as it modulates both central reward and stress pathways. However, whether and how ghrelin administration may impact alcohol intake in humans is not clear. For, we believe, the first time, this was investigated in the present randomized, crossover, double-blind, placebo-controlled, human laboratory study. Participants were non-treatment-seeking alcohol-dependent heavy-drinking individuals...
November 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29133948/increased-hippocampal-tail-volume-predicts-depression-status-and-remission-to-anti-depressant-medications-in-major-depression
#11
J J Maller, K Broadhouse, A J Rush, E Gordon, S Koslow, S M Grieve
Studies of patients with major depressive disorder (MDD) have consistently reported reduced hippocampal volumes; however, the exact pattern of these volume changes in specific anatomical subfields and their functional significance is unclear. We sought to clarify the relationship between hippocampal tail volumes and (i) a diagnosis of MDD, and (ii) clinical remission to anti-depressant medications (ADMs). Outpatients with nonpsychotic MDD (n=202) based on DSM-IV criteria and a 17-item Hamilton Rating Scale for Depression (HRSD17) score ⩾16 underwent pretreatment magnetic resonance imaging as part of the international Study to Predict Optimized Treatment for Depression (iSPOT-D)...
November 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29112191/identifying-specific-prefrontal-neurons-that-contribute-to-autism-associated-abnormalities-in-physiology-and-social-behavior
#12
A C Brumback, I T Ellwood, C Kjaerby, J Iafrati, S Robinson, A T Lee, T Patel, S Nagaraj, F Davatolhagh, V S Sohal
Functional imaging and gene expression studies both implicate the medial prefrontal cortex (mPFC), particularly deep-layer projection neurons, as a potential locus for autism pathology. Here, we explored how specific deep-layer prefrontal neurons contribute to abnormal physiology and behavior in mouse models of autism. First, we find that across three etiologically distinct models-in utero valproic acid (VPA) exposure, CNTNAP2 knockout and FMR1 knockout-layer 5 subcortically projecting (SC) neurons consistently exhibit reduced input resistance and action potential firing...
November 7, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29038599/widespread-white-matter-microstructural-differences-in-schizophrenia-across-4322-individuals-results-from-the-enigma-schizophrenia-dti-working-group
#13
S Kelly, N Jahanshad, A Zalesky, P Kochunov, I Agartz, C Alloza, O A Andreassen, C Arango, N Banaj, S Bouix, C A Bousman, R M Brouwer, J Bruggemann, J Bustillo, W Cahn, V Calhoun, D Cannon, V Carr, S Catts, J Chen, J-X Chen, X Chen, C Chiapponi, Kl K Cho, V Ciullo, A S Corvin, B Crespo-Facorro, V Cropley, P De Rossi, C M Diaz-Caneja, E W Dickie, S Ehrlich, F-M Fan, J Faskowitz, H Fatouros-Bergman, L Flyckt, J M Ford, J-P Fouche, M Fukunaga, M Gill, D C Glahn, R Gollub, E D Goudzwaard, H Guo, R E Gur, R C Gur, T P Gurholt, R Hashimoto, S N Hatton, F A Henskens, D P Hibar, I B Hickie, L E Hong, J Horacek, F M Howells, H E Hulshoff Pol, C L Hyde, D Isaev, A Jablensky, P R Jansen, J Janssen, E G Jönsson, L A Jung, R S Kahn, Z Kikinis, K Liu, P Klauser, C Knöchel, M Kubicki, J Lagopoulos, C Langen, S Lawrie, R K Lenroot, K O Lim, C Lopez-Jaramillo, A Lyall, V Magnotta, R C W Mandl, D H Mathalon, R W McCarley, S McCarthy-Jones, C McDonald, S McEwen, A McIntosh, T Melicher, R I Mesholam-Gately, P T Michie, B Mowry, B A Mueller, D T Newell, P O'Donnell, V Oertel-Knöchel, L Oestreich, S A Paciga, C Pantelis, O Pasternak, G Pearlson, G R Pellicano, A Pereira, J Pineda Zapata, F Piras, S G Potkin, A Preda, P E Rasser, D R Roalf, R Roiz, A Roos, D Rotenberg, T D Satterthwaite, P Savadjiev, U Schall, R J Scott, M L Seal, L J Seidman, C Shannon Weickert, C D Whelan, M E Shenton, J S Kwon, G Spalletta, F Spaniel, E Sprooten, M Stäblein, D J Stein, S Sundram, Y Tan, S Tan, S Tang, H S Temmingh, L T Westlye, S Tønnesen, D Tordesillas-Gutierrez, N T Doan, J Vaidya, N E M van Haren, C D Vargas, D Vecchio, D Velakoulis, A Voineskos, J Q Voyvodic, Z Wang, P Wan, D Wei, T W Weickert, H Whalley, T White, T J Whitford, J D Wojcik, H Xiang, Z Xie, H Yamamori, F Yang, N Yao, G Zhang, J Zhao, T G M van Erp, J Turner, P M Thompson, G Donohoe
The regional distribution of white matter (WM) abnormalities in schizophrenia remains poorly understood, and reported disease effects on the brain vary widely between studies. In an effort to identify commonalities across studies, we perform what we believe is the first ever large-scale coordinated study of WM microstructural differences in schizophrenia. Our analysis consisted of 2359 healthy controls and 1963 schizophrenia patients from 29 independent international studies; we harmonized the processing and statistical analyses of diffusion tensor imaging (DTI) data across sites and meta-analyzed effects across studies...
October 17, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29030624/psilocybin-for-treatment-resistant-depression-fmri-measured-brain-mechanisms
#14
Robin L Carhart-Harris, Leor Roseman, Mark Bolstridge, Lysia Demetriou, J Nienke Pannekoek, Matthew B Wall, Mark Tanner, Mendel Kaelen, John McGonigle, Kevin Murphy, Robert Leech, H Valerie Curran, David J Nutt
Psilocybin with psychological support is showing promise as a treatment model in psychiatry but its therapeutic mechanisms are poorly understood. Here, cerebral blood flow (CBF) and blood oxygen-level dependent (BOLD) resting-state functional connectivity (RSFC) were measured with functional magnetic resonance imaging (fMRI) before and after treatment with psilocybin (serotonin agonist) for treatment-resistant depression (TRD). Quality pre and post treatment fMRI data were collected from 16 of 19 patients. Decreased depressive symptoms were observed in all 19 patients at 1-week post-treatment and 47% met criteria for response at 5 weeks...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29019460/auditory-hallucinations-as-translational-psychiatry-evidence-from-magnetic-resonance-imaging
#15
Kenneth Hugdahl
In this invited review article I present a translational perspective and overview of our research on auditory hallucinations in schizophrenia at the University of Bergen, Norway with a focus on the neuronal mechanisms underlying the phenomenology of experiencing "hearing voices". An auditory verbal hallucination, i.e. "hearing a voice", is defined as a sensory experience in the absence of a corresponding external sensory source that could explain the phenomenological experience. I suggest a general frame or scheme for the study of auditory verbal hallucinations which is called Levels of Explanation (LoE)...
October 11, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28994478/treatment-of-developmental-stress-disorder-mind-body-and-brain-analysis-and-pharmacology-coupled
#16
Joseph McFadden
The schism between psychiatry, psychology and analysis, while long present, has widened even more in the past half-century with the advances in psychopharmacology. With the advances in electronic brain imaging, particularly in developmental and post-traumatic stress disorders, there has emerged both an understanding of brain changes resulting from severe, chronic stress and an ability to target brain chemistry in ways that can relieve clinical symptomatology. The use of alpha-1 adrenergic brain receptor antagonists decreases many of the manifestations of PTSD...
November 2017: Journal of Analytical Psychology
https://www.readbyqxmd.com/read/28962844/neuroimaging-in-psychiatry-steps-toward-the-clinical-application-of-brain-imaging-in-psychiatric-disorders
#17
EDITORIAL
Eunsoo Won, Yong-Ku Kim
No abstract text is available yet for this article.
January 3, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28924188/dopamine-d1-receptor-subtype-mediates-acute-stress-induced-dendritic-growth-in-excitatory-neurons-of-the-medial-prefrontal-cortex-and-contributes-to-suppression-of-stress-susceptibility-in-mice
#18
R Shinohara, M Taniguchi, A T Ehrlich, K Yokogawa, Y Deguchi, Y Cherasse, M Lazarus, Y Urade, A Ogawa, S Kitaoka, A Sawa, S Narumiya, T Furuyashiki
Dopamine in prefrontal cortices is implicated in cognitive and emotional functions, and the dysfunction of prefrontal dopamine has been associated with cognitive and emotional deficits in mental illnesses. These findings have led to clinical trials of dopamine-targeting drugs and brain imaging of dopamine receptors in patients with mental illnesses. Rodent studies have suggested that dopaminergic pathway projecting to the medial prefrontal cortex (mPFC) suppresses stress susceptibility. Although various types of mPFC neurons express several dopamine receptor subtypes, previous studies neither isolated a role of dopamine receptor subtype nor identified the site of its action in mPFC...
September 19, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28924181/common-and-dissociable-regional-cerebral-blood-flow-differences-associate-with-dimensions-of-psychopathology-across-categorical-diagnoses
#19
A N Kaczkurkin, T M Moore, M E Calkins, R Ciric, J A Detre, M A Elliott, E B Foa, A Garcia de la Garza, D R Roalf, A Rosen, K Ruparel, R T Shinohara, C H Xia, D H Wolf, R E Gur, R C Gur, T D Satterthwaite
The high comorbidity among neuropsychiatric disorders suggests a possible common neurobiological phenotype. Resting-state regional cerebral blood flow (CBF) can be measured noninvasively with magnetic resonance imaging (MRI) and abnormalities in regional CBF are present in many neuropsychiatric disorders. Regional CBF may also provide a useful biological marker across different types of psychopathology. To investigate CBF changes common across psychiatric disorders, we capitalized upon a sample of 1042 youths (ages 11-23 years) who completed cross-sectional imaging as part of the Philadelphia Neurodevelopmental Cohort...
September 19, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28914403/self-transformation-at-the-boundary-of-religious-conversion-and-psychosis
#20
Szabolcs Kéri
The relationship between religious conversion, as a form of spiritual emergency, and psychosis is one of the fundamental issues at the meeting point of theology and clinical psychology. In the present study, we assessed 53 individuals referred to a psychiatry center with the initial diagnosis of a psychotic episode by focusing on the clinical diagnosis (psychosis vs. spiritual emergency), subjective experiences (basic symptoms), and neuropsychological functions. Twenty-nine individuals meet the diagnosis of schizophrenia-spectrum disorders, but 24 persons experienced only religious and spiritual problems (religious conversion)...
September 15, 2017: Journal of Religion and Health
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