Skip to content

Iris E C Sommer

7 papers in the library · 174 citations · publishing 2012-2026

Papers

Sort Most recent Most cited

Using AI to Detect Psychosis Relapse: Scoping Review.

JMIR Ment Health June 16, 2026 Lorenzo Ghelfi, Jack Healy, Francesco Piacenza et al.

Abstract Background Psychotic disorder represents a leading cause of disability worldwide, and relapse in psychosis is common. Artificial intelligence (AI) is increasingly recognized as a method that could aid clinical monitoring for individuals experiencing psychosis. Objective This review aims to map the existing literature on AI-based approaches—including machine learning, deep learning, and...

Shared effects of electroconvulsive shocks and ketamine on neuroplasticity: A systematic review of animal models of depression.

Neuroscience and Biobehavioral Reviews September 1, 2024 Jesca E De Jager, Rutger Boesjes, Gijs H J Roelandt et al. 13 citations

Electroconvulsive shocks (ECS) and ketamine are antidepressant treatments with a relatively fast onset of therapeutic effects compared to conventional medication and psychotherapy. While the exact neurobiological mechanisms underlying the antidepressant response of ECS and ketamine are unknown, both interventions are associated with neuroplasticity. Restoration of neuroplasticity may be a...

Language and Psychosis: Tightening the Association.

Schizophrenia Bulletin March 22, 2023 Eric J Tan, Iris E C Sommer, Lena Palaniyappan

This special issue of DISCOURSE in Psychosis focuses on the role of language in psychosis, including the relationships between formal thought disorder and conceptual disorganization, with speech and language markers and the neural mechanisms underlying these features in psychosis. It also covers the application of computational techniques in the study of language in psychosis, as well as the...

Cross-cultural Differences in Hallucinations: A Comparison Between Middle Eastern and European Community-Based Samples.

Schizophrenia Bulletin February 24, 2023 Salma M Khaled, Sanne G Brederoo, Arij Yehya et al. 8 citations

While literature indicates that culture modulates phenomenological characteristics of hallucinations in schizophrenia-spectrum disorders, little is known about the extent culture modulates these characteristics in nonclinical samples. We compared lifetime prevalence, age of onset, and phenomenology of hallucinations as assessed with the Questionnaire for Psychotic Experiences between samples of...

Occurrence and phenomenology of hallucinations in the general population: A large online survey

Schizophrenia April 23, 2022 Mascha M.J. Linszen, Janna De Boer, Maya Schutte et al. 55 citations

Although epidemiological studies report that hallucinations occur in 6-15% of the general population, little is known about their phenomenology. To overcome this paucity, this study investigates the phenomenological characteristics of hallucinations in the general population, by using a nationally promoted online survey to assess hallucination phenomenology in four sensory modalities, through a...

Psychotic-like experiences among university female students in Qatar: A qualitative-phenomenological study.

Frontiers in Psychiatry 2022 Arij Yehya, Salma M Khaled, Iris E C Sommer et al. 4 citations

Psychotic-like experiences (PLEs) are hallucinatory or delusional experiences that fall below the threshold of a diagnosable psychotic disorder. Although PLEs are common across the spectrum of psychiatric disorders, they also have been commonly reported in the general population. In this study, we aimed to describe the types of PLEs experienced by university students in Qatar. Furthermore, we...