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Ultra-high risk for psychosis

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https://www.readbyqxmd.com/read/27903412/long-term-employment-among-people-at-ultra-high-risk-for-psychosis
#1
Jack Cotter, Ashleigh Lin, Richard J Drake, Andrew Thompson, Barnaby Nelson, Patrick McGorry, Stephen J Wood, Alison R Yung
BACKGROUND: Psychotic disorders are associated with high rates of sustained unemployment, however, little is known about the long-term employment outcome of people at ultra-high risk (UHR) of developing psychosis. We sought to investigate the long-term unemployment rate and baseline predictors of employment status at follow-up in a large UHR cohort. METHOD: 268 UHR patients recruited from the Personal Assessment and Crisis Evaluation clinic in Melbourne, Australia were followed-up over 2-14years after initial presentation to the service...
November 27, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27887781/high-psychosis-liability-is-associated-with-altered-autonomic-balance-during-exposure-to-virtual-reality-social-stressors
#2
Jacqueline Counotte, Roos Pot-Kolder, Arie M van Roon, Olivier Hoskam, Mark van der Gaag, Wim Veling
BACKGROUND: Social stressors are associated with an increased risk of psychosis. Stress sensitisation is thought to be an underlying mechanism and may be reflected in an altered autonomic stress response. Using an experimental Virtual Reality design, the autonomic stress response to social stressors was examined in participants with different liability to psychosis. METHOD: Fifty-five patients with recent onset psychotic disorder, 20 patients at ultra-high risk for psychosis, 42 siblings of patients with psychosis and 53 controls were exposed to social stressors (crowdedness, ethnic minority status and hostility) in a Virtual Reality environment...
November 22, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27863320/the-effect-of-childhood-adversity-on-4-year-outcome-in-individuals-at-ultra-high-risk-for-psychosis-in-the-dutch-early-detection-intervention-evaluation-edie-nl-trial
#3
Tamar C Kraan, Helga K Ising, Marjolein Fokkema, Eva Velthorst, David P G van den Berg, Margot Kerkhoven, Wim Veling, Filip Smit, Don H Linszen, Dorien H Nieman, Lex Wunderink, Nynke Boonstra, Rianne M C Klaassen, Sara Dragt, Judith Rietdijk, Lieuwe de Haan, Mark van der Gaag
Childhood adversity is associated with a range of mental disorders, functional impairment and higher health care costs in adulthood. In this study we evaluated if childhood adversity was predictive of adverse clinical and functional outcomes and health care costs in a sample of patients at ultra-high risk (UHR) for developing a psychosis. Structural Equation Modeling was used to examine the effect of childhood adversity on depression, anxiety, transition to psychosis and overall functioning at 4-year follow-up...
November 11, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27860294/screening-for-psychosis-risk-among-adolescents-in-child-and-adolescent-mental-health-services-a-description-of-the-first-step-with-the-16-item-version-of-the-prodromal-questionnaire-pq-16
#4
Yvonne de Jong, Cornelis L Mulder, Albert E Boon, Mathijs Deen, Maarten van 't Hof, Mark van der Gaag
AIM: Although the 16-item version of the Prodromal Questionnaire (PQ-16) is used as a screener in the early detection of psychosis risk, little is known about PQ-16 scores among adolescents referred to the Child and Adolescent Mental Health Services. We assessed such scores in adolescents referred to these services in the Netherlands, and also their associations with age, gender, diagnosis and level of functioning. METHODS: The PQ-16 was added to regular intake procedures...
November 9, 2016: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/27828960/cortical-morphology-differences-in-subjects-at-increased-vulnerability-for-developing-a-psychotic-disorder-a-comparison-between-subjects-with-ultra-high-risk-and-22q11-2-deletion-syndrome
#5
Geor Bakker, Matthan W A Caan, Wilhelmina A M Vingerhoets, Fabiana da Silva-Alves, Mariken de Koning, Erik Boot, Dorien H Nieman, Lieuwe de Haan, Oswald J Bloemen, Jan Booij, Thérèse A M J van Amelsvoort
INTRODUCTION: Subjects with 22q11.2 deletion syndrome (22q11DS) and subjects with ultra-high risk for psychosis (UHR) share a risk of approximately 30% to develop a psychotic disorder. Studying these groups helps identify biological markers of pathophysiological processes involved in the development of psychosis. Total cortical surface area (cSA), total cortical grey matter volume (cGMV), cortical thickness (CT), and local gyrification index (LGI) of the cortical structure have a distinct neurodevelopmental origin making them important target markers to study in relation to the development of psychosis...
2016: PloS One
https://www.readbyqxmd.com/read/27824119/intake-of-7-8-dihydroxyflavone-during-juvenile-and-adolescent-stages-prevents-onset-of-psychosis-in-adult-offspring-after-maternal-immune-activation
#6
Mei Han, Ji-Chun Zhang, Wei Yao, Chun Yang, Tamaki Ishima, Qian Ren, Min Ma, Chao Dong, Xu-Feng Huang, Kenji Hashimoto
Prenatal infection and subsequent abnormal neurodevelopment of offspring is involved in the etiology of schizophrenia. Brain-derived neurotrophic factor (BDNF) and its high affinity receptor, tropomyosin receptor kinase B (TrkB) signaling plays a key role in the neurodevelopment. Pregnant mice exposed to polyriboinosinic-polyribocytidylic acid [poly(I:C)] causes schizophrenia-like behavioral abnormalities in their offspring at adulthood. Here we found that the juvenile offspring of poly(I:C)-treated mice showed cognitive deficits, as well as reduced BDNF-TrkB signaling in the prefrontal cortex (PFC)...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27821204/cannabis-induced-attenuated-psychotic-symptoms-implications-for-prognosis-in-young-people-at-ultra-high-risk-for-psychosis
#7
M J McHugh, P D McGorry, A R Yung, A Lin, S J Wood, J A Hartmann, B Nelson
BACKGROUND: Cannabis use shows a robust dose-dependent relationship with psychosis risk among the general population. Despite this, it has been difficult to link cannabis use with risk for transitioning to a psychotic disorder among individuals at ultra-high risk (UHR) for psychosis. The present study examined UHR transition risk as a function of cannabis use characteristics which vary substantially between individuals including age of first use, cannabis abuse severity and a history of cannabis-induced attenuated psychotic symptoms (APS)...
November 8, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27779285/-prognostic-modelling-and-proactive-intervention-in-psychosis-efficacy-and-cost-effectiveness
#8
M van der Gaag, H Ising, J Lokkerbol, F Smit
Diagnoses have heterogeneous outcomes, varying from good to extremely poor. There is a need to single out an ultra-high-risk group of individuals who have illnesses that might well end unfavourably or who might later develop serious psychopathology.<br/> AIM: To devise a screening instrument that can identify a group of individuals who run a very high risk of developing a first-episode psychosis, and to create a type of intervention that can modify the course of the illness.<br/> METHOD: We developed a short screening instrument (PQ-16) and were able to ascertain its predictive value...
2016: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/27774914/interplay-of-hippocampal-volume-and-hypothalamus-pituitary-adrenal-axis-function-as-markers-of-stress-vulnerability-in-men-at-ultra-high-risk-for-psychosis
#9
M Pruessner, L Bechard-Evans, S Pira, R Joober, D L Collins, J C Pruessner, A K Malla
BACKGROUND: Altered hypothalamus-pituitary-adrenal (HPA) axis function and reduced hippocampal volume (HV) are established correlates of stress vulnerability. We have previously shown an attenuated cortisol awakening response (CAR) and associations with HV specifically in male first-episode psychosis patients. Findings in individuals at ultra-high risk (UHR) for psychosis regarding these neurobiological markers are inconsistent, and assessment of their interplay, accounting for sex differences, could explain incongruent results...
October 24, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27761399/disruptions-in-neural-connectivity-associated-with-reduced-susceptibility-to-a-depth-inversion-illusion-in-youth-at-ultra-high-risk-for-psychosis
#10
Tina Gupta, Steven M Silverstein, Jessica A Bernard, Brian P Keane, Thomas V Papathomas, Andrea Pelletier-Baldelli, Derek J Dean, Raeana E Newberry, Ivanka Ristanovic, Vijay A Mittal
Patients with psychosis exhibit a reduced susceptibility to depth inversion illusions (DII) in which a physically concave surface is perceived as convex (e.g., the hollow mask illusion). Here, we examined the extent to which lessened susceptibility to DII characterized youth at ultra high risk (UHR) for psychosis. In this study, 44 UHR participants and 29 healthy controls judged the apparent convexity of face-like human masks, two of which were concave and the other convex. One of the concave masks was painted with realistic texture to enhance the illusion; the other was shown without such texture...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27760701/course-of-illness-in-a-sample-of-patients-diagnosed-with-a-schizotypal-disorder-and-treated-in-a-specialized-early-intervention-setting-findings-from-the-3-5year-follow-up-of-the-opus-ii-study
#11
Nikolai Albert, Louise Birkedal Glenthøj, Marianne Melau, Heidi Jensen, Carsten Hjorthøj, Merete Nordentoft
BACKGROUND: Previous studies report that 20% to 30% of those initially diagnosed with schizotypal disorder go on to develop a psychotic disorder (predominantly schizophrenia). Schizotypal disorder share some traits of those used to identify patients at ultra-high risk for psychosis. METHOD: As part of a randomized clinical trial testing the effect of prolonged specialized early intervention, we recruited 83 participants diagnosed with a schizotypal disorder. Participants were recruited 18 months into their two-year treatment program, and follow-up interviews were conducted three and a half year later...
October 16, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27747152/corticolimbic-dysfunction-during-facial-and-prosodic-emotional-recognition-in-first-episode-psychosis-patients-and-individuals-at-ultra-high-risk
#12
Huai-Hsuan Tseng, Jonathan P Roiser, Gemma Modinos, Irina Falkenberg, Carly Samson, Philip McGuire, Paul Allen
Emotional processing dysfunction is widely reported in patients with chronic schizophrenia and first-episode psychosis (FEP), and has been linked to functional abnormalities of corticolimbic regions. However, corticolimbic dysfunction is less studied in people at ultra-high risk for psychosis (UHR), particularly during processing prosodic voices. We examined corticolimbic response during an emotion recognition task in 18 UHR participants and compared them with 18 FEP patients and 21 healthy controls (HC). Emotional recognition accuracy and corticolimbic response were measured during functional magnetic resonance imaging (fMRI) using emotional dynamic facial and prosodic voice stimuli...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27733710/structural-neuroimaging-across-early-stage-psychosis-aberrations-in-neurobiological-trajectories-and-implications-for-the-staging-model
#13
Cali F Bartholomeusz, Vanessa L Cropley, Cassandra Wannan, Maria Di Biase, Patrick D McGorry, Christos Pantelis
OBJECTIVE: This review critically examines the structural neuroimaging evidence in psychotic illness, with a focus on longitudinal imaging across the first-episode psychosis and ultra-high-risk of psychosis illness stages. METHODS: A thorough search of the literature involving specifically longitudinal neuroimaging in early illness stages of psychosis was conducted. The evidence supporting abnormalities in brain morphology and altered neurodevelopmental trajectories is discussed in the context of a clinical staging model...
October 12, 2016: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/27732025/-psychosis-predictive-value-of-self-reported-schizotypy-in-a-clinical-high-risk-sample-correction-to-fl%C3%A3-ckiger-et-al-2016
#14
(no author information available yet)
Reports an error in "Psychosis-Predictive Value of Self-Reported Schizotypy in a Clinical High-Risk Sample" by Rahel Flückiger, Stephan Ruhrmann, Martin Debbané, Chantal Michel, Daniela Hubl, Benno G. Schimmelmann, Joachim Klosterkötter and Frauke Schultze-Lutter (Journal of Abnormal Psychology, Advanced Online Publication, Sep 1, 2016, np). In the article, there was an error in the Author Note. The affiliation of Daniela Hubl was incorrectly listed as "University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern...
October 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27717277/ultra-high-risk-status-and-transition-to-psychosis-in-22q11-2-deletion-syndrome
#15
Maude Schneider, Marco Armando, Maria Pontillo, Stefano Vicari, Martin Debbané, Frauke Schultze-Lutter, Stephan Eliez
The 22q11.2 deletion syndrome (22q11DS) is characterized by high rates of psychotic symptoms and schizophrenia, making this condition a promising human model for studying risk factors for psychosis. We explored the predictive value of ultra high risk (UHR) criteria in a sample of patients with 22q11DS. We also examined the additional contribution of socio-demographic, clinical and cognitive variables to predict transition to psychosis within a mean interval of 32.5 ± 17.6 months after initial assessment...
October 2016: World Psychiatry: Official Journal of the World Psychiatric Association (WPA)
https://www.readbyqxmd.com/read/27699911/individual-prediction-of-long-term-outcome-in-adolescents-at-ultra-high-risk-for-psychosis-applying-machine-learning-techniques-to-brain-imaging-data
#16
Sanne de Wit, Tim B Ziermans, M Nieuwenhuis, Patricia F Schothorst, Herman van Engeland, René S Kahn, Sarah Durston, Hugo G Schnack
An important focus of studies of individuals at ultra-high risk (UHR) for psychosis has been to identify biomarkers to predict which individuals will transition to psychosis. However, the majority of individuals will prove to be resilient and go on to experience remission of their symptoms and function well. The aim of this study was to investigate the possibility of using structural MRI measures collected in UHR adolescents at baseline to quantitatively predict their long-term clinical outcome and level of functioning...
October 4, 2016: Human Brain Mapping
https://www.readbyqxmd.com/read/27697078/longitudinal-alterations-in-motivational-salience-processing-in-ultra-high-risk-subjects-for-psychosis
#17
A Schmidt, M Antoniades, P Allen, A Egerton, C A Chaddock, S Borgwardt, P Fusar-Poli, J P Roiser, O Howes, P McGuire
BACKGROUND: Impairments in the attribution of salience are thought to be fundamental to the development of psychotic symptoms and the onset of psychotic disorders. The aim of the present study was to explore longitudinal alterations in salience processing in ultra-high-risk subjects for psychosis. METHOD: A total of 23 ultra-high-risk subjects and 13 healthy controls underwent functional magnetic resonance imaging at two time points (mean interval of 17 months) while performing the Salience Attribution Test to assess neural responses to task-relevant (adaptive salience) and task-irrelevant (aberrant salience) stimulus features...
October 4, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27693282/pattern-of-activation-during-delayed-matching-to-sample-task-predicts-functional-outcome-in-people-at-ultra-high-risk-for-psychosis
#18
Irina Falkenberg, Isabel Valli, Marie Raffin, Matthew R Broome, Paolo Fusar-Poli, Pall Matthiasson, Marco Picchioni, Philip McGuire
BACKGROUND: Clinical outcomes in people identified as at ultra-high risk (UHR) for psychosis are remarkably heterogeneous, and are difficult to predict on the basis of the presenting clinical features. Individuals at UHR are at risk of poor functional outcome regardless of development of psychotic disorder. The aim of the present study was to assess whether there is a relationship between functional neuroimaging measures at presentation and functional outcome as measured by the GAF three years after scanning...
September 29, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27689019/volumetric-relaxometric-and-diffusometric-correlates-of-psychotic-experiences-in-a-non-clinical-sample-of-young-adults
#19
Mark Drakesmith, Anirban Dutt, Leon Fonville, Stanley Zammit, Abraham Reichenberg, C John Evans, Philip McGuire, Glyn Lewis, Derek K Jones, Anthony S David
BACKGROUND: Grey matter (GM) abnormalities are robust features of schizophrenia and of people at ultra high-risk for psychosis. However the extent to which neuroanatomical alterations are evident in non-clinical subjects with isolated psychotic experiences is less clear. METHODS: Individuals (mean age 20 years) with (n = 123) or without (n = 125) psychotic experiences (PEs) were identified from a population-based cohort. All underwent T1-weighted structural, diffusion and quantitative T1 relaxometry MRI, to characterise GM macrostructure, microstructure and myelination respectively...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27684654/premorbid-adjustment-in-individuals-at-ultra-high-risk-for-developing-psychosis-a-case-control-study
#20
Anders L Dannevang, Lasse Randers, Matthias Gondan, Kristine Krakauer, Dorte Nordholm, Merete Nordentoft
AIM: Deterioration in premorbid adjustment is related to ultra-high risk (UHR) individuals developing psychosis, but it has not been examined how UHR individuals' development differs compared to healthy controls. This study investigates differences in premorbid adjustment between UHR individuals and a healthy control group. METHOD: A total of 48 UHR individuals and 50 healthy controls matched on group level for age, gender and parents' socio-economic status were included in the study...
September 29, 2016: Early Intervention in Psychiatry
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