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Early psychosis

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https://www.readbyqxmd.com/read/28325573/brain-network-characteristics-separating-individuals-at-clinical-high-risk-for-psychosis-into-normality-or-psychosis
#1
Soo-Hee Choi, Sunghyon Kyeong, Kang Ik K Cho, Je-Yeon Yun, Tae Young Lee, Hye Yoon Park, Sung Nyun Kim, Jun Soo Kwon
We aimed to separate individuals at clinical high risk for psychosis (CHR) state into subgroups according to neurobiological characteristics using structural and functional network constructs and examine their clinical characteristics. Structural diffusion tensor imaging and resting-state functional magnetic resonance imaging were performed in 61 healthy controls (HC), 57 individuals at CHR and 29 patients with schizophrenia (SZ). The main outcome was a likelihood ratio calculated from measures of structural and functional network efficiencies, coupling strength of structural and functional networks, and a disease-specific data analysis, resulting in the most probable classification of CHR into HC or SZ...
March 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28321200/the-importance-of-metamemory-functioning-to-the-pathogenesis-of-psychosis
#2
REVIEW
Sarah Eisenacher, Mathias Zink
Many studies up to date have implied that biases in the metacognition of memory, so called metamemory, contribute to the development and maintenance of positive symptoms in schizophrenia. However, no study exists which has longitudinally followed patients experiencing positive symptoms. The present article therefore reviews cross-sectional studies on retrospective metamemory abilities in participants within different stages of a schizophrenia spectrum disorder, with heterogeneous symptom severities, creating a pseudo-longitudinal overview...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28321193/early-psychosis-and-trauma-related-disorders-clinical-practice-guidelines-and-future-directions
#3
Casey A Cragin, Martha B Straus, Dawn Blacker, Laura M Tully, Tara A Niendam
Despite high rates of trauma-related disorders among individuals with early psychosis, no clinical practice guidelines for the treatment of comorbid early psychosis and trauma-related disorders exist to date. Indeed, the routine exclusion of individuals with past and current psychosis from participation in trauma research and practice has limited the accumulation of research that could support such clinical practice guidelines. While preliminary research evidence suggests that traditional, evidence-based treatments for trauma-related disorders can be safely and effectively employed to reduce symptoms of posttraumatic stress and chronic psychosis, it remains unclear whether such treatments are appropriate for individuals in the early stages of psychotic illness...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28320226/functional-neuroimaging-predictors-of-self-reported-psychotic-symptoms-in-adolescents
#4
Josiane Bourque, Philip A Spechler, Stéphane Potvin, Robert Whelan, Tobias Banaschewski, Arun L W Bokde, Uli Bromberg, Christian Büchel, Erin Burke Quinlan, Sylvane Desrivières, Herta Flor, Vincent Frouin, Penny Gowland, Andreas Heinz, Bernd Ittermann, Jean-Luc Martinot, Marie-Laure Paillère-Martinot, Sarah C McEwen, Frauke Nees, Dimitri Papadopoulos Orfanos, Tomáš Paus, Luise Poustka, Michael N Smolka, Nora C Vetter, Henrik Walter, Gunter Schumann, Hugh Garavan, Patricia J Conrod
OBJECTIVE: This study investigated the neural correlates of psychotic-like experiences in youths during tasks involving inhibitory control, reward anticipation, and emotion processing. A secondary aim was to test whether these neurofunctional correlates of risk were predictive of psychotic symptoms 2 years later. METHOD: Functional imaging responses to three paradigms-the stop-signal, monetary incentive delay, and faces tasks-were collected in youths at age 14, as part of the IMAGEN study...
March 21, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28318837/innovations-in-first-episode-psychosis-interventions-the-case-for-a-raise-plus-approach
#5
Emily Kline, Matcheri Keshavan
Several papers in the current issue of Schizophrenia Research show evidence supporting interventions that are not yet grouped with standard care practices in FEP. Taken together, these studies make the case for a more inclusive approach for early psychosis care than what is embodied in RAISE. Although providing all interventions to all patients, however, will be impractical and expensive, a personalized approach to such interventions, whereby the appropriate interventions are implemented in a phase specific and individually tailored manner after a careful assessment of each person's core deficits within a coordinated specialty care model, is likely to improve lives and be cost-effective...
March 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28315846/risk-factors-for-early-psychosis-in-pd-insights-from-the-parkinson-s-progression-markers-initiative
#6
Dominic H Ffytche, Joana B Pereira, Clive Ballard, K Ray Chaudhuri, Daniel Weintraub, Dag Aarsland
BACKGROUND: Parkinson's Disease (PD) psychosis refers to the spectrum of illusions, formed hallucinations and delusions that occur in PD. Visual hallucinations and illusions are thought to be caused by specific cognitive and higher visual function deficits and patients who develop such symptoms early in the disease course have greater rates of cognitive decline and progression to dementia. To date, no studies have investigated whether such deficits are found prior to the onset of PD psychosis...
April 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28314681/duration-and-frequency-mismatch-negativity-shows-no-progressive-reduction-in-early-stages-of-psychosis
#7
Daisuke Koshiyama, Kenji Kirihara, Mariko Tada, Tatsuya Nagai, Shinsuke Koike, Motomu Suga, Tsuyoshi Araki, Kiyoto Kasai
The auditory mismatch negativity (MMN) is a component of event-related potentials, which is being increasingly recognized as a candidate biomarker for early stages of psychosis. Although previous cross-sectional studies have demonstrated small MMN amplitude in early stages of psychosis, it remains unknown whether small MMN amplitude is due to progressive reduction during the early course. In this study, we investigated longitudinal changes of MMN in early stages of psychosis. Participant included 14 patients with first-episode psychosis (FEP), 16 individuals with ultra-high risk (UHR), and 16 healthy control subjects (HC)...
March 14, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28314460/schizophrenia-and-psychosis-diagnosis-current-research-trends-and-model-treatment-approaches-with-implications-for-transitional-age-youth
#8
REVIEW
Vivien Chan
This article reviews the current state of diagnosis and treatment of schizophrenia, describing the recent proliferation of research in high-risk psychosis spectrum conditions, which are different from childhood-onset and early onset schizophrenia, and findings of psychotic-like experiences in the normal population. Taken from adult and childhood literature, clinical quandaries in accurate diagnosis, and treatment gaps in co-occurring, or sometimes confounding, conditions are discussed. Thoughts on the impact of schizophrenia on an emerging adulthood trajectory are offered...
April 2017: Child and Adolescent Psychiatric Clinics of North America
https://www.readbyqxmd.com/read/28304340/neuroinflammation-and-oxidative-stress-in-psychosis-and-psychosis-risk
#9
REVIEW
Henry Barron, Sina Hafizi, Ana C Andreazza, Romina Mizrahi
Although our understanding of psychotic disorders has advanced substantially in the past few decades, very little has changed in the standard of care for these illnesses since the development of atypical anti-psychotics in the 1990s. Here, we integrate new insights into the pathophysiology with the increasing interest in early detection and prevention. First, we explore the role of N-methyl-d-aspartate receptors in a subpopulation of cortical parvalbumin-containing interneurons (PVIs). Postmortem and preclinical data has implicated these neurons in the positive and negative symptoms, as well as the cognitive dysfunction present in schizophrenia...
March 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28302703/predictors-and-moderators-of-treatment-outcome-in-patients-receiving-multi-element-psychosocial-intervention-for-early-psychosis-results-from-the-get-up-pragmatic-cluster-randomised-controlled-trial
#10
Antonio Lasalvia, Chiara Bonetto, Jacopo Lenzi, Paola Rucci, Laura Iozzino, Massimo Cellini, Carla Comacchio, Doriana Cristofalo, Armando D'Agostino, Giovanni de Girolamo, Katia De Santi, Daniela Ghigi, Emanuela Leuci, Maurizio Miceli, Anna Meneghelli, Francesca Pileggi, Silvio Scarone, Paolo Santonastaso, Stefano Torresani, Sarah Tosato, Angela Veronese, Angelo Fioritti, Mirella Ruggeri
BackgroundThe GET UP multi-element psychosocial intervention proved to be superior to treatment as usual in improving outcomes in patients with first-episode psychosis (FEP). However, to guide treatment decisions, information on which patients may benefit more from the intervention is warranted.AimsTo identify patients' characteristics associated with (a) a better treatment response regardless of treatment type (non-specific predictors), and (b) a better response to the specific treatment provided (moderators)...
March 16, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28302699/psychological-and-psychosocial-interventions-for-negative-symptoms-in-psychosis-systematic-review-and-meta-analysis
#11
REVIEW
Danyael Lutgens, Genevieve Gariepy, Ashok Malla
BackgroundNegative symptoms observed in patients with psychotic disorders undermine quality of life and functioning. Antipsychotic medications have a limited impact. Psychological and psychosocial interventions, with medication, are recommended. However, evidence for the effectiveness of specific non-biological interventions warrants detailed examination.AimsTo conduct a meta-analytic and systematic review of the literature on the effectiveness of non-biological treatments for negative symptoms in psychotic disorders...
March 16, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28302395/social-cognition-psychometric-evaluation-scope-in-people-with-early-psychosis-a-preliminary-study
#12
Kelsey A Ludwig, Amy E Pinkham, Philip D Harvey, Skylar Kelsven, David L Penn
Social cognition is an important outcome in schizophrenia research. Unfortunately, there has been a lack of consensus regarding which measures of social cognition best capture this domain of functioning. The Social Cognition Psychometric Evaluation (SCOPE) study was developed to address the need for a battery of measures that have sound psychometric properties and can be implemented in clinical trials for individuals with chronic schizophrenia. The current study expands upon the SCOPE study by examining the psychometric properties of the eight candidate measures administered to individuals early in the course of psychosis...
March 14, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28300493/mother-child-incest-psychosis-and-the-dynamics-of-relatedness
#13
Joan Haliburn
Sexual abuse perpetrated by a parent particularly the mother creates turmoil in the child who has to depend on the very person who betrays their trust. A review of the literature confirms that there are only a few case studies of mother-child incest reported in the psychoanalytic literature; the incidence of such incest, however, is unknown. Considerably, more information is available in the forensic and child abuse literatures along with an increase in research; yet, there is a paucity of data. Child sexual abuse by women as highly prevalent is described in early societies, and that there is a bias in peoples' minds about the capacity of females to sexually abuse children is raised by many writers...
February 26, 2017: Journal of Trauma & Dissociation
https://www.readbyqxmd.com/read/28294477/identifying-neurocognitive-markers-for-outcome-prediction-of-global-functioning-in-ultra-high-risk-for-psychosis-and-first-episode-psychosis
#14
Kingo Sawada, Akiko Kanehara, Satoshi Eguchi, Mariko Tada, Yoshihiro Satomura, Motomu Suga, Shinsuke Koike, Kiyoto Kasai
AIM: There is an increasing need for identifying neurocognitive predictors of global functional outcome in early psychosis toward optimizing early intervention strategy. METHODS: We conducted a longitudinal observational study to investigate an association between neurocognitive assessments at baseline and global functional outcome at an average of one-year follow-up. Participants included ultra-high-risk for psychosis (UHR) individuals who had not converted to psychosis during the follow-up period (UHR-NP), and those with first-episode psychosis (FEP) individuals...
March 14, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28294137/relationship-between-duration-of-untreated-psychosis-and-intrinsic-corticostriatal-connectivity-in-patients-with-early-phase-schizophrenia
#15
Deepak K Sarpal, Delbert G Robinson, Christina Fales, Todd Lencz, Miklos Argyelan, Katherine H Karlsgodt, Juan A Gallego, Majnu John, John M Kane, Philip R Szeszko, Anil K Malhotra
Patients with first-episode psychosis experience psychotic symptoms for a mean of up to two years prior to initiation of treatment, and long duration of untreated psychosis (DUP) is associated with poor clinical outcomes. Meanwhile, evidence compiled from numerous studies suggests that longer DUP is not associated with structural brain abnormalities. To date, few studies have examined the relationship between DUP and functional neuroimaging measures. In the present study, we used seed-based resting-state functional connectivity to examine the impact of DUP on corticostriatal circuitry...
March 15, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28291864/sex-specific-cognitive-abnormalities-in-early-onset-psychosis
#16
Miguel Ruiz-Veguilla, Josefa Moreno-Granados, Maria D Salcedo-Marin, Maria L Barrigon, Maria J Blanco-Morales, Evelio Igunza, Anselmo Cañabate, Maria D Garcia, Teresa Guijarro, Francisco Diaz-Atienza, Maite Ferrin
Objectives: Brain maturation differs depending on the area of the brain and sex. Girls show an earlier peak in maturation of the prefrontal cortex. Although differences between adult females and males with schizophrenia have been widely studied, there has been less research in girls and boys with psychosis. The purpose of this study was to examine differences in verbal and visual memory, verbal working memory, auditory attention, processing speed, and cognitive flexibility between boys and girls...
January 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28291777/adolescent-but-not-adult-ethanol-binge-drinking-modulates-cocaine-withdrawal-symptoms-in-mice
#17
Juan Carlos Ledesma, Maria A Aguilar, Pablo Giménez-Gómez, José Miñarro, Marta Rodríguez-Arias
BACKGROUND: Ethanol (EtOH) binge drinking is an increasingly common behavior among teenagers that induces long-lasting neurobehavioral alterations in adulthood. An early history of EtOH abuse during adolescence is highly correlated with cocaine addiction in adulthood. Abstinence of cocaine abuse can cause psychiatric symptoms, such as anxiety, psychosis, depression, and cognitive impairments. This study assessed the consequences of adolescent exposure to EtOH on the behavioral alterations promoted by cocaine withdrawal in adulthood...
2017: PloS One
https://www.readbyqxmd.com/read/28291299/-neurosyphilis-in-psychiatric-settings-three-case-reports
#18
Erhan Akıncı, Fatih Öncü, Barış Topçular
Syphilis is a generally sexually transmitted and multisystem disease caused by the spirochete Treponema pallidum. All of the organs of the body may be involved during the course of the disease. Neurosyphilis is a clinical form of syphilis with the central nervous system (CNS) involvement. While primarily meningeal and vascular structures are involved in early neurosyphilis, a parenchymal affection of the brain and spinal cord emerges at later stages of neurosyphilis. It presents with symptoms of meningitis, meningovasculitis and parenchymal neurosyphilis (presenting as tabes dorsalis and general paresis)...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/28289277/csf-gaba-is-reduced-in-first-episode-psychosis-and-associates-to-symptom-severity
#19
F Orhan, H Fatouros-Bergman, M Goiny, A Malmqvist, F Piehl, S Cervenka, K Collste, P Victorsson, C M Sellgren, L Flyckt, S Erhardt, G Engberg
Schizophrenia is characterized by a multiplicity of symptoms arising from almost all domains of mental function. γ-Aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the brain and is increasingly recognized to have a significant role in the pathophysiology of the disorder. In the present study, cerebrospinal fluid (CSF) concentrations of GABA were analyzed in 41 first-episode psychosis (FEP) patients and 21 age- and sex-matched healthy volunteers by high-performance liquid chromatography...
March 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28288547/neuropsychological-correlates-of-schizotypy-a-systematic-review-and-meta-analysis-of-cross-sectional-studies
#20
Sara Siddi, Donatella Rita Petretto, Antonio Preti
INTRODUCTION: Cognitive deficits can precede the onset of psychotic episodes and predict the onset of the illness in individuals with schizotypy traits. In some studies, high levels of schizotypy were associated with impairments in memory, attention, executive functions, and verbal fluency. This review provides a more comprehensive understanding of cognitive impairments related to schizoytpy. METHODS:  A systematic review of "schizotypy and neuropsychological measures" was conducted, and it retrieved 67 studies...
March 13, 2017: Cognitive Neuropsychiatry
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