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Related Experiment Videos

Effects of antipsychotics on brain structure.

Harald Scherk1, Peter Falkai

  • 1Department of Psychiatry and Psychotherapy, Saarland University Hospital, Homburg, Germany.

Current Opinion in Psychiatry
|April 14, 2006
PubMed
Summary

Typical antipsychotics increase basal ganglia volume and decrease grey matter, while atypical antipsychotics may reverse these effects and potentially ameliorate schizophrenia-related brain changes. Further research is needed.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Radiology

Background:

  • Schizophrenia is associated with structural brain changes.
  • Typical and atypical antipsychotics are used to manage schizophrenia symptoms.
  • The differential effects of these medication classes on brain structure require clarification.

Purpose of the Study:

  • To review recent findings on the effects of typical and atypical antipsychotics on brain structure.
  • To compare the impact of typical versus atypical antipsychotics on specific brain regions.
  • To explore the potential of atypical antipsychotics in mitigating disease-related and drug-induced structural alterations.

Main Methods:

  • Literature review of studies investigating antipsychotic effects on brain structure.
  • Analysis of neuroimaging data (e.g., MRI) from patients treated with typical or atypical antipsychotics.

Related Experiment Videos

  • Comparison of brain volumes (basal ganglia, thalamus, cortical grey matter) between patient groups and healthy controls.

    • Main Results:

    • Typical antipsychotics significantly increased basal ganglia volumes and decreased cortical grey matter, observable within 12 weeks.
    • Atypical antipsychotics did not alter basal ganglia volumes in neuroleptic-naïve patients.
    • Switching from typical to atypical antipsychotics normalized increased basal ganglia volumes; atypical antipsychotics increased thalamus and cortical grey matter volumes.

    Conclusions:

    • Atypical antipsychotics may ameliorate structural brain changes associated with schizophrenia and typical antipsychotic treatment.
    • Evidence suggests differential effects of typical and atypical antipsychotics on brain structure.
    • Further research is necessary to elucidate the mechanisms underlying these observed neuroanatomical differences.