Related Experiment Video
Updated: Jul 4, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Neuropsychological relationships in paranoid schizophrenia with and without delusional misidentification syndromes. A
L Lykouras1, M Typaldou, P Mourtzouchou
12nd Department of Psychiatry, Athens University Medical School, Attikon Hospital, 1 Rimini Street, 124 62, Athens, Greece. panpsyclin@attikonhospital.gr
Abstract:
Delusional misidentification syndromes (DMSs) and schizophrenia are strongly associated, since the former occur predominantly in the context of paranoid schizophrenia. However, the possible underlying neuropsychological relationships between DMSs and paranoid schizophrenia have not been thoroughly investigated. The aim of the present study was to investigate whether DMSs in paranoid schizophrenia are associated with a distinct neuropsychological substrate indicative of differential bilateral frontal and right hemisphere dysfunction. We compared two matched groups of paranoid schizophrenic patients with (N=22) and without (N=22) DMS(s) on a battery of neuropsychological tests assessing mainly frontal and right hemisphere functions. No statistically significant differences were detected between the two groups. Our findings are indicative of a bilateral frontal and right hemisphere dysfunction of equal severity in both DMS and non-DMS patients with paranoid schizophrenia.
More Related Videos
Related Concept Videos
Personality Disorders: Paranoid and Schizoid
Paranoid Personality Disorder
Paranoid personality disorder is...
Positive Symptoms Schizophrenia: Hallucinations and Delusions
Hallucinations
Hallucinations in...
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Positive Symptoms of Schizophrenia: Hallucinations and Delusions
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes loosely...
Psychological and Sociocultural Causes of Schizophrenia
Personality Disorders: Schizotypal and Histrionic
Schizotypal Personality Disorder: Eccentric Behavior and Social Withdrawal
Schizotypal personality disorder is marked by odd or eccentric...

