1. Epidemiology of severe insomnia and its consequences in Germany

   • G. Hajak
   • on behalf of the SINE Study Group

   Original paper Pages: 49 - 56

2. Association between TaqI A dopamine D₂ receptor polymorphism and therapeutic response to bromperidol: a preliminary report

   • A. Suzuki
   • T. Kondo
   • Y. Inoue

   Original paper Pages: 57 - 59

3. Remitted schizophrenia-spectrum patients with spared working memory show information processing abnormalities

   • Szabolcs Kéri
   • István Szendi
   • Zoltán Janka

   Original paper Pages: 60 - 65

4. Hypofrontality in neuroleptic-naive schizophrenic patients during the Wisconsin Card Sorting Test – a fMRI study

   • Stefan Riehemann
   • Hans-Peter Volz
   • Heinrich Sauer

   Original paper Pages: 66 - 71

5. Effectiveness of targeted intervention and maintenance pharmacotherapy in conjunction with family intervention in schizophrenia

   • G. Wiedemann
   • K. Hahlweg
   • M. Dose

   Original paper Pages: 72 - 84

6. Increased prevalence of obesity in narcoleptic patients and relatives

   • Norbert Dahmen
   • Jürgen Bierbrauer
   • Meike Kasten

   Original paper Pages: 85 - 89

7. Different immune patterns in melancholic and non-melancholic major depression

   • Matthias Rothermundt
   • Volker Arolt
   • Holger Kirchner

   Original paper Pages: 90 - 97