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Related Experiment Video

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Assessment of Long-term Depression Induction in Adult Cerebellar Slices
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Cerebellar Contributions to Major Depression.

Malte S Depping1, Mike M Schmitgen1, Katharina M Kubera1

  • 1Department of General Psychiatry, Center for Psychosocial Medicine, University of Heidelberg, Heidelberg, Germany.

Frontiers in Psychiatry
|December 18, 2018
PubMed
Summary

The cerebellum, beyond motor control, influences cognition and mood. Neuroimaging reveals distinct cerebellar structural and functional changes in major depressive disorder (MDD), impacting cognitive and self-referential processing networks.

Keywords:
VBMcerebellumcerebro-cerebellar networksintrinsic connectivitymajor depression

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Area of Science:

  • Neuroimaging
  • Cognitive Neuroscience
  • Psychiatry

Background:

  • The cerebellum's role extends beyond motor functions to cognition and affect.
  • Evidence suggests a topographic organization of cognitive functions within the cerebellum.
  • Major depressive disorder (MDD) is increasingly recognized to involve non-motor brain regions.

Purpose of the Study:

  • To review recent neuroimaging research on cerebellar contributions to major depressive disorder (MDD).
  • To synthesize structural and functional neuroimaging findings in depression.
  • To provide future perspectives for neuroimaging research in this area.

Main Methods:

  • Review of existing neuroimaging studies (structural and functional) in MDD patients.
  • Analysis of cerebellar volume and cerebro-cerebellar connectivity.
  • Synthesis of findings related to specific cerebellar lobules and their cortical connections.

Main Results:

  • Increased volume in lobule IX in MDD patients, irrespective of disease state.
  • Successful electroconvulsive therapy associated with increased lobule VIIA volume.
  • Reduced cerebro-cerebellar connectivity in lobules VI and VIIA/B with prefrontal, parietal, and limbic regions in MDD.

Conclusions:

  • MDD pathophysiology affects specific cerebellar subregions involved in cognitive and self-referential processing.
  • Cerebellar structural and functional alterations are linked to MDD.
  • Future research should address limitations such as sample size and phenotypic characterization.