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Iris E. Sommer

university medical center groningen

86H-index
658Paper Count
2.9WCitation Count
Published Papers 352
Publication Date
Co-reference and the topology of meaning in schizophrenia and depression
err2026-09-30
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errOAAI
errClaudio Palominos; Karla Fröhlich; Rieke Roxanne Mülfarth; Svenja Seuffert; Thomas Brochhagen; Frederike Stein; Tilo Kircher; Iris E. Sommer; Philipp Homan; Wolfram Hinzen
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Polysubstance use after remission in first-episode psychosis: Associations with positive symptoms and self-care
err2026-09-09
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errOAAI
errDunja M. van der Velde; Lieuwe de Haan; Albert Batalla; Iris E. Sommer; Nynke Boonstra; Jentien M. Vermeulen
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Olanzapine Dosing in Women with First-Episode Psychosis: An Age-Based Proxy for Menopausal Status
err2026-08-24
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errOAAI
errTara Burke; Karen O’Connor; Iris E Sommer; Dolores Keating; Richard Duffy; Anne Doherty; Brian O’Donoghue
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Social functioning and formal thought disorder in schizophrenia: A Bayesian meta-analysis
err2026-08-01
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PREAI
errSoldovieri, Clara Benedetta Caterina; Elleuch, Dalia; Ahrens, Jessica; Bambini, Valentina; Delgaram-Nejad, Oliver; Garani, Ranjini; Harrison, Neil A.; Kircher, Tilo; Kuperberg, Gina; Rossell, Susan L.; Sommer, Iris E.; Bosia, Marta; Palaniyappan, Lena
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Multiscale characterization of cortical signatures in positive and negative schizotypy: a worldwide ENIGMA study
err2026-04-18
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errOAAI
errMatthias Kirschner; Benazir Hodzic-Santor; Leda Kennedy; Justine Y. Hansen; Mathilde Antoniades; Igor Nenadić; Tilo Kircher; Axel Krug; Tina Meller; Udo Dannlowski; Dominik Grotegerd; Kira Flinkenflügel; Susanne Meinert; Tiana Borgers; Janik Goltermann; Tim Hahn; Joscha Böhnlein; Elisabeth J. Leehr; Carlotta Barkhau; Alex Fornito; Aurina Arnatkeviciute; Mark A. Bellgrove; Jeggan Tiego; Pamela DeRosse; Melissa Green; Yann Quidé; Christos Pantelis; Raymond C. K. Chan; Yi Wang; Ulrich Ettinger; Martin Debbané; Melodie Derome; Christian Gaser; Bianca Besteher; Kelly Diederen; Tom J. Spencer; Josselin Houenou; Edith Pomarol-Clotet; Raymond Salvador; Wulf Rössler; Lukasz Smigielski; Veena Kumari; Preethi Premkumar; Haeme R. P. Park; Kristina Wiebels; Imke Jansen; James Gilleen; Paul Allen; Jan-Bernard Marsman; Irina Lebedeva; Alexander Tomyshev; Anne-Kathrin Fett; Iris Sommer; Sanne Koops; Phillip Grant; Asia Ferrari; Bin Wan; Indrit Bègue; Dennis Hernaus; Maria Jalbrzikowski; Casey Paquola; Sara Larivière; Boris Bernhardt; Sofie L. Valk; Bratislav Misic; Theo G. M. van Erp; Jessica A. Turner; Paul M. Thompson; Andre Aleman; Alain Dagher; Stefan Kaiser; Gemma Modinos
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Midbrain microglial and macrophage mRNAs distinguish neuroinflammatory schizophrenia from bipolar disorder
err2026-01-16
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errOAAI
errGerardo Mendez-Victoriano; Yunting Zhu; Yasmine Kostoglou; Adam K. Walker; Frank Middleton; Paul T. Massa; Bart J.L. Eggen; Maree J. Webster; Iris E.C. Sommer; Cynthia S. Weickert
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Investigating the methodological foundation of lesion network mapping
err2026-01-15
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errMartijn P. van den Heuvel; Ilan Libedinsky; Sebastian Quiroz Monnens; Jonathan Repple; Iris Sommer; Luca Cocchi
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Negative association between cognitive functioning and antipsychotic D2 receptor occupancy, affinity, and dose after first episode psychosis
err2026-01-02
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PREAI
errOomen, Priscilla P.; Gangadin, Shiral S.; de Haan, Lieuwe; de Beer, Franciska; Beune, Oda E.; Oostendorp, Doris A. D.; Begemann, Marieke J. H.; Boonstra, Nynke; Kikkert, Martijn; Koops, Sanne; Veling, Wim; Sommer, Iris E. C.
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Increased TNF Superfamily Members in Neuroinflammatory Schizophrenia and Bipolar Disorder Midbrains
err2025-11-01
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errOAAI
errGerardo Mendez-Victoriano; Yunting Zhu; Layla Neuhaus; Suhaana Shaik; Frank Middleton; Yuji Kondo; Amir Fayyazuddin; Daniel Hoeppner; Sofía Puvogel; Astrid Alsema; Laura Kracht; Mitsuyuki Matsumoto; Bart J.L. Eggen; Adam K. Walker; Maree J. Webster; Iris E.C. Sommer; Cynthia S. Weickert
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The Transdiagnostic Association Between Childhood Trauma and Accelerated Brain Aging in Two Independent Datasets
err2025-11-01
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PREAI
errZhou, Lan; Schnack, Hugo; van Dellen, Edwin; Boks, Marco P.; Bakker, P. Roberto; Cahn, Wiepke; Sommer, Iris E. C.; Begemann, Marieke J. H.
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Association between the exposome score for schizophrenia and functioning in remitted first-episode psychosis: results from the HAMLETT study
err2025-10-06
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errSterre Kamphuis; Angelo Arias-Magnasco; Shiral Gangadin; Marieke Begemann; Ben Wijnen; Wim Veling; Lieuwe de Haan; Iris Sommer; Jim van Os; P. Roberto Bakker; Sinan Gülöksüz
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Trajectories of Clozapine Concentrations in Women Across Menopausal Age
err2025-10-01
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PREAI
errde Beer, Franciska; Hamers, Iris M. H.; Prycka, Michalina; Schoretsanitis, Georgios; Gangadin, Shiral S.; Touw, Daan J.; Sommer, Iris E. C.
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rTMS treatment for refractory hallucinations: new insights from classic targets
err2025-08-04
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PREAI
errIris E Sommer; Sanne Koops; Martijn van den Heuvel
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The Effects of Antipsychotic Dose Reduction on Movement Disorders and Cardiometabolic Indices in Patients Remitted from a First Episode of Psychosis
err2025-08-01
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errLiu, Yinzhao; Sommer, Iris E.; Begemann, Marieke J. H.; Gangadin, Shiral S.; Perry, Benjamin, I; Scheurink, Toon A. W.; van Beveren, Nico J. M.; Bakker, Pieter Roberto; Koops, Sanne
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Prednisolone add-on in early phase schizophrenia: A randomized, double-blind, placebo-controlled pilot study
err2025-07-10
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errOAAI
errGunnhild E. Hoprekstad; Erik Johnsen; Christoffer Bartz-Johannessen; Jill Kristin Bjarke; Petros Drosos; Ole Bernt Fasmer; Kristian Varden Gjerde; Solveig K. Reitan; Silje Skrede; Iris E.C. Sommer; Lena Stabell; Vidar M. Steen; Rune A. Kroken
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Towards a name change of schizophrenia: Positive and Negative Symptoms Disorder (PND)
err2025-05-19
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errOAAI
errLeucht, Stefan; Yurtseven, Deniz S.; Priller, Josef; Davis, John M.; van Os, Jim; Sommer, Iris E. C.
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A single composite index of semantic behavior tracks symptoms of psychosis over time
err2025-05-01
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errOAAI
errPalominos, Claudio; Kirdun, Maryia; Nikzad, Amir H.; Spilka, Michael J.; Homan, Philipp; Sommer, Iris E.; Tang, Sunny X.; Hinzen, Wolfram
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What Do Four Decades of Research Tell Us About the Association Between Childhood Adversity and Psychosis: An Updated and Extended Multi-Level Meta-Analysis
err2025-04-01
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PREAI
errZhou, Lan; Sommer, Iris E. C.; Yang, Pengyuan; Sikirin, Lev; van Os, Jim; Bentall, Richard P.; Varese, Filippo; Begemann, Marieke J. H.
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