Brain Structure and Function

, Volume 217, Issue 2, pp 517–522

Brain grey matter deficits in smokers: focus on the cerebellum

  • Simone Kühn
  • Alexander Romanowski
  • Christina Schilling
  • Arian Mobascher
  • Tracy Warbrick
  • Georg Winterer
  • Jürgen Gallinat
Original Article

Abstract

Structural cerebral deficiencies in smokers have been well characterized by morphometric investigations focussing on cortical and subcortical structures. Although the role of the cerebellum is increasingly noted in mental and addiction disorders, no reports exist regarding cerebellar alterations in smokers employing a methodology specifically designed to assess the cerebellar morphology. We acquired high-resolution MRI scans from 33 heavy smokers and 22 never-smokers and used a voxel-based morphometry (VBM) approach utilizing the Spatially Unbiased Infratentorial (SUIT) toolbox (Diedrichsen 2006) to provide an optimized and fine-grained exploration of cerebellar structural alterations associated with smoking. Relative to never-smokers, smokers showed significant reductions of grey matter volume in the right cerebellum Crus I. The grey matter volume in Crus I correlated negatively with the amount of nicotine dependence as assessed by means of the Fagerström scale. Since Crus I has been identified as the cognitive division of the cerebellum, the structural deficit may in part mediate cognitive deficits previously reported in smokers. Of note, the dependence-related magnitude of the volume deficit may support the notion that the cerebellum is substantially involved in core mechanisms of drug dependence.

Keywords

Smoking Nicotine Cerebellum Voxel-based morphometry Addiction SUIT toolbox 

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Simone Kühn
    • 1
    • 5
  • Alexander Romanowski
    • 1
  • Christina Schilling
    • 1
    • 6
  • Arian Mobascher
    • 2
    • 3
  • Tracy Warbrick
    • 3
  • Georg Winterer
    • 3
    • 4
  • Jürgen Gallinat
    • 1
  1. 1.Charité University Medicine, St Hedwig Krankenhaus, Clinic for Psychiatry and PsychotherapyBerlinGermany
  2. 2.Department of PsychiatryUniversity of MainzMainzGermany
  3. 3.Institute of Neurosciences and Medicine, Helmholtz Research Centre JülichJülichGermany
  4. 4.Cologne Center for Genomics, University of CologneCologneGermany
  5. 5.Department of Experimental Psychology and Ghent Institute for Functional and Metabolic ImagingGhent University, Faculty of Psychology and Educational SciencesGhentBelgium
  6. 6.Department of PsychologyHumboldt-Universität zu BerlinBerlinGermany

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