A Key Brain Difference Between Voice-Hearing Patients And Voice-Hearing Healthy Controls Challenges The “Continuum Model”

Via Garrison et al, 2019 By Christian Jarrett Hearing voices that don’t exist in the outside world is the most common form of hallucination experienced by people with a diagnosis of schizophrenia or related conditions and it can be very distressing. However, there is a growing recognition that hearing voices is not always pathological. Many mentally well people hear voices (or “auditory verbal hallucinations”) – in fact, around 6-7 per cent of adults in the general population report having had such experiences at some point in their lives. This has led some experts to propose a “continuum model” in which the same fundamental underlying mechanism leads to hearing voices in healthy people and in patients with a clinical diagnosis, but that for various reasons, such as a traumatic past, the experience is more troublesome and distressing for the patients. However, a new open-access paper in Schizophrenia Bulletin challenges the continuum model, finding an important brain difference between patients who hear voices and voice-hearing healthy controls. The research team, led by Jane Garrison and Iris Sommer, recruited three groups matched for age, education, sex, handedness and overall brain volume: 50 patients with a diagnosis of schizophrenia (or related conditions such as nonspecific psychosis or schizoaffective disorder) who hear voices; 50 non-clinical healthy volunteers who hear voices (at least once per week); and 50 healthy controls who d...
Source: BPS RESEARCH DIGEST - Category: Psychiatry & Psychology Authors: Tags: Brain Mental health Psychosis Source Type: blogs

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Source: Scandinavian Journal of Primary Health Care - Category: Primary Care Authors: Source Type: research
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Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: General Research Schizophrenia Causes Of Schizophrenia Schizophrenia Causes Source Type: blogs
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Source: IEE Transactions on Medical Imaging - Category: Biomedical Engineering Source Type: research
Purpose of review To give an update on recent imaging studies probing positron emission tomography (PET) as a tool for improving biomarker-guided diagnosis of neuropsychiatric disorders. Recent findings Several studies confirmed the value of imaging of regional neuronal activity and imaging of dopaminergic, serotonergic, and other neuroreceptor function in the diagnostic process of neuropsychiatric disorders, particularly schizophrenia, depression/bipolar disorder, substance use disorders, obsessive compulsive disorders (OCD), and attention-deficit/hyperactivity disorder. Additionally, imaging brain microglial activat...
Source: Current Opinion in Neurology - Category: Neurology Tags: NEUROIMAGING: Edited by Stefan Klöppel Source Type: research
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Source: The Medical Futurist - Category: Information Technology Authors: Tags: Future of Medicine AI artificial intelligence bipolar disorder chatbots future of psychiatry mental disorder mental health mental health disorders mental health issues moodkit pacifica schizophrenia suicide thriveport woebot Source Type: blogs
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Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: A Bipolar, A Schizophrenic, and a Podcast Minding the Media Source Type: blogs
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Conclusions: Interhemispheric functional coordination abnormalities may be one of the important pathophysiological mechanisms of OCD.
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
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Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
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Source: Psychiatry Investigation - Category: Psychiatry Tags: Psychiatry Investig Source Type: research
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