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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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Five year follow-up of non-psychotic adults with frequent auditory verbal hallucinations: are they still healthy?
TL;DR: It is suggested that frequent AVH in non-psychotic adults past the peak incidence age for psychosis constitute a rather static symptom and that individuals with AVH may be best viewed as situated on a need for care continuum.
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Auditory hallucinations, top-down processing and language perception : A general population study
J. de Boer,Mascha M. J. Linszen,J. de Vries,Maya J. L. Schutte,Marieke J. H. Begemann,Sophie M. Heringa,Marc M. Bohlken,Kenneth Hugdahl,Kenneth Hugdahl,André Aleman,Frank Wijnen,Iris E. C. Sommer +11 more
TL;DR: The presence of verbal AH (AVH) was predictive for false alarm rate in auditory language perception, whereas the presence of non-verbal auditory or visual hallucinations was not, suggesting that enhanced top-down processing does not transfer across modalities.
Journal Article
Left with the voices or hearing right? Lateralization of auditory verbal hallucinations in schizophrenia.
TL;DR: Results showed that language-related areas in the left hemisphere were significantly more activated than the right-sided homotope regions, and the hypothesis that auditory verbal hallucinations arise from a right hemisphere source of language production (inner speech) and are subsequently perceived as originating from an external source is not supported by the available evidence.
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Digital phenotyping and the COVID-19 pandemic: Capturing behavioral change in patients with psychiatric disorders.
Raj R. Jagesar,Mila C. Roozen,Inge van der Heijden,Nessa Ikani,Anna Tyborowska,Brenda W.J.H. Penninx,Henricus G. Ruhé,Iris E. C. Sommer,Martien J H Kas,Jacob A. S. Vorstman +9 more
TL;DR: The data provides a proof of principle that digital phenotyping tools can identify changes in human behavior incited by a common external environmental factor.
Journal ArticleDOI
Neuroimaging auditory verbal hallucinations in schizophrenia patient and healthy populations
Maria A Di Biase,Fan Zhang,Amanda E. Lyall,Amanda E. Lyall,Marek Kubicki,Marek Kubicki,René C.W. Mandl,Iris E. C. Sommer,Ofer Pasternak +8 more
TL;DR: White matter pathology associated with the presence of AVH, independent of diagnostic status, was identified, however, commonalities were constrained to younger and more homogenous groups, after reducing pathologic variance associated with advancing age and chronicity effects.