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Iris E. C. Sommer
Researcher at University Medical Center Groningen
Publications - 454
Citations - 20580
Iris E. C. Sommer is an academic researcher from University Medical Center Groningen. The author has contributed to research in topics: Schizophrenia & Medicine. The author has an hindex of 68, co-authored 394 publications receiving 16545 citations. Previous affiliations of Iris E. C. Sommer include University of Toronto & University of Michigan.
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Auditory hallucinations across the lifespan: a systematic review and meta-analysis.
TL;DR: Current meta-analysis shows that AH are quite common (up to one in ten individuals) in the general population during lifetime, with children and adolescents reporting these experiences significantly more often compared with adults and elderly.
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Better Than Mermaids and Stray Dogs? Subtyping Auditory Verbal Hallucinations and Its Implications for Research and Practice
Simon McCarthy-Jones,Neil Thomas,Clara Strauss,Guy Dodgson,Nev Jones,Angela Woods,Chris R. Brewin,Mark Hayward,Massoud Stephane,Jack Barton,David Kingdon,Iris E. C. Sommer +11 more
TL;DR: This article explores how AVH subtypes may be identified at the levels of phenomenology, cognition, neurology, etiology, treatment response, diagnosis, and voice hearer’s own interpretations, including the need for a subtype assessment tool.
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Prefrontal cortical thinning links to negative symptoms in schizophrenia via the ENIGMA consortium.
Esther Walton,Derrek P. Hibar,T.G.M. van Erp,Steven G. Potkin,Roberto Roiz-Santiañez,Benedicto Crespo-Facorro,Paula Suárez-Pinilla,N.E.M. van Haren,S. M. C. de Zwarte,René S. Kahn,Wiepke Cahn,Nhat Trung Doan,Kjetil Nordbø Jørgensen,Tiril P. Gurholt,Ingrid Agartz,Ole A. Andreassen,Lars T. Westlye,Ingrid Melle,Akiah Ottesen Berg,Lynn Mørch-Johnsen,Ann Færden,Lena Flyckt,Helena Fatouros-Bergman,Erik G. Jönsson,Ryota Hashimoto,Hidenaga Yamamori,Masaki Fukunaga,Neda Jahanshad,P. De Rossi,Fabrizio Piras,Nerisa Banaj,Gianfranco Spalletta,R.E. Gur,Ruben C. Gur,Daniel H. Wolf,Theodore D. Satterthwaite,L M Beard,Iris E. C. Sommer,Sanne Koops,Oliver Gruber,Anja Richter,Bernd Krämer,Sinead Kelly,Gary Donohoe,Colm McDonald,Dara M. Cannon,Aiden Corvin,Michael Gill,A. Di Giorgio,Alessandro Bertolino,Stephen M. Lawrie,Thomas Nickson,Heather C. Whalley,Emma Neilson,Vince D. Calhoun,Paul M. Thompson,Jessica A. Turner,Stefan Ehrlich +57 more
TL;DR: Using an unusually large cohort and a meta-analytical approach, the findings point towards a link between prefrontal thinning and negative symptom severity in schizophrenia.
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An update on the efficacy of anti-inflammatory agents for patients with schizophrenia: a meta-analysis
Nuray Çakici,Nuray Çakici,N. J. M. van Beveren,G. Judge-Hundal,Maju Mathew Koola,Iris E. C. Sommer +5 more
TL;DR: Some, but not all agents with anti-inflammatory properties showed efficacy in schizophrenia symptoms tested in randomized controlled trials (RCTs), and effective agents were aspirin, estrogens, minocycline, and NAC.
Journal ArticleDOI
Cannabis use at a young age is associated with psychotic experiences.
Christian D. Schubart,W. A. van Gastel,E. J. Breetvelt,S. L. Beetz,Roel A. Ophoff,Iris E. C. Sommer,René S. Kahn,Marco P. Boks +7 more
TL;DR: Early start of cannabis use is strongly associated with subclinical psychotic symptoms and to a lesser degree with negative symptoms, while smoking high amounts of cannabis is associated with increased levels of all three symptom dimensions: psychotic, negative and depressive.