1997 – 2000

H.-P. Volz, C. Gaser, H. Sauer.
Supporting evidence for the model of cognitive dysmetria – a structural MRI study using deformation based morphometry.
Schizophrenia Research, 46:45-56, 2000. PDF

C. Gaser, H.-P. Volz, S. Kiebel, S. Riehemann, H. Sauer.
Detecting structural changes in whole brain based on nonlinear deformations – application to schizophrenia research.
Neuroimage, 10:107-113, 1999. PDF

H.-P. Volz, C. Gaser, F. Häger, R. Rzanny, J. Pönisch, H.-J. Mentzel, W. A. Kaiser, H. Sauer.
Decreased frontal activation in schizophrenics during stimulation with the Continuous Performance Test – a functional magnetic resonance study.
European Psychiatry, 14:17-24, 1999. PDF

H.-J. Mentzel, C. Gaser, H.-P. Volz, R. Rzanny, F. Häger, H. Sauer, W. A. Kaiser.
Cognitive stimulation by using the Wisconsin Card Sorting Test – a functional magnetic resonance imaging study at 1.5 Tesla.
Radiology, 207:399-404, 1998. PDF

F. Häger, H.-P. Volz, C. Gaser, H.-J. Mentzel, W. A. Kaiser, H. Sauer.
Challenging the anterior attentional system with a continuous performance task – a functional magnetic resonance approach.
European Archives of Psychiatry and Clinical Neuroscience, 248:161-70, 1998. PDF

H.-P. Volz, C. Gaser, F. Häger, R. Rzanny, H.-J. Mentzel, I. Kreitschmann-Andermahr, W. A. Kaiser, H. Sauer.
Brain activation during cognitive stimulation with the Wisconsin Card Sorting Test – a functional MRI study of healthy volunteers and schizophrenics.
Psychiatry Research Neuroimaging, 75:145-157, 1997. PDF