Smoking and structural brain deficits: a volumetric MR investigation

…, J Bierbrauer, T Kienast, H Witthaus… - European Journal of …, 2006 - Wiley Online Library
Growing evidence from animal studies indicates brain‐damaging properties of nicotine
exposure. Investigations in humans found a wide range of functional cerebral effects of nicotine …

An fMRI study of theory of mind in schizophrenic patients with “passivity” symptoms

M Brüne, S Lissek, N Fuchs, H Witthaus, S Peters… - Neuropsychologia, 2008 - Elsevier
Several studies have shown that patients with schizophrenia underactivate brain regions
involved in theory of mind relative to controls during functional brain imaging. However, in most …

Validation of the Personal and Social Performance (PSP) Scale in a German sample of acutely ill patients with schizophrenia

…, N Fuchs, U Naumann, I Uhl, H Witthaus… - Schizophrenia …, 2008 - Elsevier
In trying to more broadly define outcome in the efficient long-term treatment of patients with
schizophrenia it is necessary to consider not only a reduction in psychopathological …

Gray matter abnormalities in subjects at ultra-high risk for schizophrenia and first-episode schizophrenic patients compared to healthy controls

H Witthaus, C Kaufmann, G Bohner, S Özgürdal… - Psychiatry Research …, 2009 - Elsevier
… Author links open overlay panel Henning Witthaus a , Christian Kaufmann b , Georg Bohner
c , Seza … The results of the study constitute part of the doctoral thesis of Henning Witthaus. …

Reduction of auditory event-related P300 amplitude in subjects with at-risk mental state for schizophrenia

S Özgürdal, Y Gudlowski, H Witthaus, W Kawohl… - Schizophrenia …, 2008 - Elsevier
Neurophysiological methods allow the examination of cognitive–cortical functioning in
patients with schizophrenia in its prodromal states. As revealed by previous studies, event-related …

[HTML][HTML] Cooperation and deception recruit different subsets of the theory-of-mind network

S Lissek, S Peters, N Fuchs, H Witthaus, V Nicolas… - PloS one, 2008 - journals.plos.org
The term “theory of mind” (ToM) describes an evolved psychological mechanism that is
necessary to represent intentions and expectations in social interaction. It is thus involved in …

Hippocampal subdivision and amygdalar volumes in patients in an at-risk mental state for schizophrenia

H Witthaus, U Mendes, M Brüne, S Özgürdal… - Journal of Psychiatry and …, 2010 - jpn.ca
Background: Accumulating evidence from postmortem and magnetic resonance imaging (MRI)
studies suggests that abnormalities of medial temporal lobe structures are critically …

Ventral striatal activation during reward processing in subjects with ultra-high risk for schizophrenia

G Juckel, E Friedel, M Koslowski, H Witthaus… - …, 2012 - karger.com
Background: Early dysfunction of the brain reward system in schizophrenia might be already
recognized in the prodromal phase of this illness. We used functional magnetic resonance …

“Theory of mind” is impaired in Huntington's disease

M Brüne, K Blank, H Witthaus, C Saft - Movement Disorders, 2011 - Wiley Online Library
Background: Huntington's disease (HD) is an autosomal dominant degenerative brain
disorder that is characterized by motor, cognitive, and affective symptoms. There is, to some, …

Test-performance after cognitive training in persons at risk mental state of schizophrenia and patients with schizophrenia

…, S Ozgurdal, E Littmann, Y Gudlowski, H Witthaus… - Psychiatry …, 2011 - Elsevier
This exploratory study aims to examine the differential effects of a computer–based cognitive
training in ‘prodromal’ patients (mean age 27.20years, SD 5.31years) compared with …