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prof. dr. I.E.C. (Iris) Sommer Full Professor

  • Psychiatry

I.E.C. Sommer

Contact

Research Programs

Biography

Iris Sommer obtained her PhD in 2004 cum laude on language lateralization in schizophrenia. After she finished her psychiatry residencies she worked as a psychiatrist in UMCU where she started the Voices Clinic. She started a research group investigating the pathophysiology of hallucinations and developed an interest in the treatment of schizophrenia.

She has several positions in editorial boards and committees:

  1. Elected member of the Young Academy of the Royal Dutch Academy of Arts and Science (DJA of KNAW)
  2. Invited member of AcademiaNet (500 leading women in science), headed by Angela Merckel
  3. Associate editor at Schizophrenia Bulletin (neuro-imaging section),
  4. Chair of the Dutch ZonMW program "Memorabel", part of the Deltaplan Dementie
  5. Member of the International Advisory Council SIRS (Schizophrenia International Research Society), 
  6. Member of the Steering Committee of the International Consortium on Hallucination Research
  7. Chair of the Scientific Committee of the Dutch Psychiatry Association 
  8. Member of the Dutch Committee for Research Integrity (Landelijk Orgaan Wetenschappelijke Integriteit)
  9. Member of the KNAW (Royal Dutch Academy of Arts and Sciences) Jury of the Heineken Medicine Price 
  10. Member of the KNAW (Royal Dutch Academy of Arts and Sciences) Committee KNAW-agenda large-scale research facilities (grootschalige onderzoeksfaciliteiten)

Research line

Pathophysiology and treatment of psychosis

Most recent key publications

1: Sommer IE, de Kort GA, Meijering AL, Dazzan P, Hulshoff Pol HE, Kahn RS, van Haren NE. How Frequent Are Radiological Abnormalities in Patients With Psychosis? A Review of 1379 MRI Scans. Schizophr Bull, 2012 Mar 13, Epub ahead of print
2: Sommer IE, de Witte L, Begemann M, Kahn RS. Nonsteroidal anti-inflammatory drugs in schizophrenia: ready for practice or a good start? A meta-analysis. J Clin Psychiatry, 2012 73(4):414-419.
3: Sommer IE, Slotema CW, Daskalakis J, Derks EM, Blom JD, van der Gaag M. The treatment of hallucinations in schizophrenia Schizophrenia Bulletin, 2012 Jun;38(4):704-14
4: Howes O, Shotbold PJ, Daalman K, Diederen KMJ, Kahn RS, Sommer IE. Dopaminergic function in the psychosis spectrum: an [18F]-DOPA imaging study in healthy individuals with auditory hallucinations. Schizophrenia Bulletin 2012 January 26
5: Sommer IE, Aleman A, Slotema CM, Schutter DJ. Transcranial stimulation for psychosis: the relationship between effect size and published findings. Am J Psychiatry, 2012 169(11):1211

Fellowship and Awards

  • 2005 Veni ZONMW € 200,000, nr. 916.56.172
    2008 Clinical Fellowship ZonMW €160,000, nr. 40-00703-97-270
    2009 Vidi, ZonMW €800,000, nr. 017.106.301 
    2012: Stanley foundation USA, $491,000 12T-008
    2012: Stanley foundation USA, $475,000, and 12T-009

Research Output (276)

Auditory hallucinations, top-down processing and language perception:a general population study

de Boer J. N., Linszen M. M.J., de Vries J., Schutte M. J.L., Begemann M. J.H., Heringa S. M., Bohlken M. M., Hugdahl K., Aleman A., Wijnen F. N.K., Sommer I. E.C. 1 dec 2019, In: Psychological medicine. 49 , p. 2772-2780 9 p.

Evolutionary modifications in human brain connectivity associated with schizophrenia

van den Heuvel Martijn P, Scholtens Lianne H, de Lange Siemon C, Pijnenburg Rory, Cahn Wiepke, van Haren Neeltje E M, Sommer Iris E, Bozzali Marco, Koch Kathrin, Boks Marco P, Repple Jonathan, Pievani Michela, Li Longchuan, Preuss Todd M, Rilling James K 14 nov 2019, In: Brain : a journal of neurology. 142 , p. 3991-4002 12 p.

Correction: Stratification and prediction of remission in first-episode psychosis patients: the OPTiMiSE cohort study (vol 9, 20, 2019):Stratification and prediction of remission in first-episode psychosis patients: the OPTiMiSE cohort study (Translational Psychiatry, (2019), 9, 1, (20), 10.1038/s41398-018-0366-5)

Martinuzzi Emanuela, Barbosa Susana, Daoudlarian Douglas, Ali Wafa Bel Haj, Gilet Cyprien, Fillatre Lionel, Khalfallah Olfa, Troudet Réjane, Jamain Stéphane, Fond Guillaume, Sommer Iris, Leucht Stefan, Dazzan Paola, McGuire Philip, Arango Celso, Diaz-Caneja Covadonga M., Fleischhacker Wolfgang, Rujescu Dan, Glenthøj Birte, Winter Inge, Kahn René Sylvain, Yolken Robert, Lewis Shon, Drake Richard, Davidovic Laetitia, Leboyer Marion, Glaichenhaus Nicolas, 21 jun 2019, In: Translational Psychiatry. 9 1 p.

MRI investigation of immune dysregulation in schizophrenia

Gangadin Shiral S, Nasib Lyliana G, Sommer Iris E C, Mandl René C W mei 2019, In: Current Opinion in Psychiatry. 32 , p. 164-169 6 p.

Stratification and prediction of remission in first-episode psychosis patients:the OPTiMiSE cohort study

Martinuzzi Emanuela, Barbosa Susana, Daoudlarian Douglas, Bel Haj Ali Wafa, Gilet Cyprien, Fillatre Lionel, Khalfallah Olfa, Troudet Réjane, Jamain Stéphane, Fond Guillaume, Sommer Iris, Leucht Stefan, Dazzan Paola, McGuire Philip, Arango Celso, Diaz-Caneja Covadonga M., Fleischhacker Wolfgang, Rujescu Dan, Glenthøj Birte, Winter Inge, Kahn René Sylvain, Yolken Robert, Lewis Shon, Drake Richard, Davidovic Laetitia, Leboyer Marion, Glaichenhaus Nicolas, 17 jan 2019, In: Translational Psychiatry. 9

Atopy increases risk of psychotic experiences:A large population-based study

Begemann Marieke J.H., Linszen Mascha M.J., De Boer Janna N., Hovenga Wytske D., Gangadin Shiral S., Schutte Maya J.L., Sommer Iris E.C. 1 jan 2019, In: Frontiers in Psychiatry. 10

Farmacotherapeutische overwegingen bij eerste psychose — Een samenvatting van de OPTiMiSE-studie

Sommer Iris E., Rossum Inge Winter van, Somers Metten, Kahn Rene S. 1 jan 2019, In: Nederlands Tijdschrift voor Geneeskunde. 163

A novel concurrent TMS-fMRI method to reveal propagation patterns of prefrontal magnetic brain stimulation

Vink Jord J.T., Mandija Stefano, Petrov Petar I., van den Berg Cornells A.T., Sommer Iris E.C., Neggers Sebastiaan F.W. nov 2018, In: Human Brain Mapping. 39 , p. 4580-4592

Antipsychotic treatments:who is really failing here? – Authors' reply

Kahn René S., Sommer Iris E. 1 okt 2018, In: The Lancet Psychiatry. 5 , p. 785-786 2 p.

Clozapine as a first- or second-line treatment in schizophrenia:a systematic review and meta-analysis

Okhuijsen-Pfeifer C., Huijsman E. A.H., Hasan A., Sommer I. E.C., Leucht S., Kahn R. S., Luykx J. J. 1 okt 2018, In: Acta Psychiatrica Scandinavica. 138 , p. 281-288 8 p.

All Research Output (276)
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