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Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).

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Schizophrenia--what does structural MRI show?

Unn Kristin Haukvik1, Cecilie Bhandari Hartberg, Ingrid Agartz

  • 1K.G. Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Norway. unn.haukvik@medisin.uio.no

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|April 25, 2013
PubMed
Summary
This summary is machine-generated.

Magnetic Resonance Imaging (MRI) reveals brain structure differences in schizophrenia patients, including smaller brain volume and altered cortical thickness. These neuroanatomical changes are observable at a group level but not for individual diagnosis.

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Area of Science:

  • Neuroimaging
  • Psychiatry
  • Neuroscience

Background:

  • Schizophrenia is a severe mental disorder impacting brain function.
  • Magnetic Resonance Imaging (MRI) allows in vivo examination of brain anatomy in schizophrenia patients.
  • Understanding neuroanatomical differences is key to comprehending schizophrenia.

Purpose of the Study:

  • To review structural MRI findings in schizophrenia.
  • To synthesize current knowledge on neuroanatomical correlates of schizophrenia.
  • To assess the diagnostic potential of MRI in schizophrenia.

Main Methods:

  • Literature review of PubMed-searched studies on "schizophrenia MRI".
  • Inclusion of structural MRI studies on humans, written in English.
  • Selection of representative studies based on authors' expertise.

Main Results:

  • Schizophrenia patients exhibit smaller total brain volume and enlarged ventricles on MRI.
  • Reduced hippocampal and thalamic volumes, increased globus pallidus volume observed.
  • Cortical changes include altered folding, reduced volume/thickness, particularly in frontal and temporal lobes.
  • Neurodevelopmental abnormalities may underlie schizophrenia, with some changes present at onset.
  • Longitudinal studies report anatomical changes, but their precise meaning remains unclear.

Conclusions:

  • Neuroanatomical differences in schizophrenia are detectable via group-level MRI analysis.
  • Structural MRI is currently insufficient for diagnosing schizophrenia in individuals.
  • Further research is needed to interpret longitudinal anatomical changes.