Wolfgang Trapp

Prof. Dr. Wolfgang Trapp


Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 July 2013 in BMC Psychiatry
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Journal Article
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WTWolfgang Trapp
Wolfgang Trapp
MLMichael Landgrebe
Michael Landgrebe
KHKatharina Hoesl
Katharina Hoesl
Stefan LautenbacherStefan Lautenbacher
Stefan Lautenbacher
BGBernd Gallhofer
Bernd Gallhofer
GHGöran Hajak
Göran Hajak
Cognitive deficits are stable features of schizophrenia that are linked to functional outcome. Cognitive remediation approaches have been proven successful in ameliorating these deficits, although effect sizes vary considerably. Whether cognitive deficits are serious predictors of clinical outcome is less clear. Sixty patients suffering from schizophrenia were included in our sample, thirty of them received computer-assisted cognitive training, and thirty received occupational therapy. For a subsample of 55 patients, who could be traced over a period of five years after the end of the cognitive remediation intervention, time until first relapse and time in psychosis were determined retrospectively from their medical records. Cognitive remediation significantly improved problem solving, memory and attention with high effect sizes. Employment status, a post test verbal memory performance measure and a measure of executive functioning outperformed all other measures in the prediction of time to relapse, while allocation to treatment group outperformed all other variables in the prediction of both cognitive measures. Cognitive remediation of neurocognitive deficits thus makes sense in a twofold fashion: It enhances cognition directly and positively acts on clinical course indirectly via improved neurocognition. German Clinical Trials Register: DRKS00004880

25 December 2015 in Australian & New Zealand Journal of Psychiatry
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Journal Article
Open access
WTWolfgang Trapp
Wolfgang Trapp
SESinha Engel
Sinha Engel
GHGoeran Hajak
Goeran Hajak
SLStefan Lautenbacher
Stefan Lautenbacher
BGBernd Gallhofer
Bernd Gallhofer
Neurocognitive deficits that persist despite antidepressive treatment and affect social and vocational functioning are well documented in major depressive disorder. Cognitive training approaches have proven successful in ameliorating these deficits in other psychiatric groups, but very few studies have been conducted in unipolar depressive patients by now. In contrast to previous studies solely including outpatients, effects of a cognitive remediation intervention on neurocognitive functioning of depressed inpatients were assessed by the present study. A randomized controlled trial was carried out with 46 depressed inpatients of a psychiatric hospital. Patients were randomly assigned to either a control group that received standard drug and non-drug (cognitive behavioural, occupational, sports, relaxation and music therapy) antidepressive treatment or a remediation group that additionally received 12 sessions of cognitive training for a total of 4 weeks (three sessions per week). An intent to treat analysis and a last observation carried forward method was used for data analyses. Patients of the remediation group demonstrated greater improvements in neurocognitive measures of verbal and nonverbal memory, working memory and executive function (Cohen’s d effect sizes between .52 and .98). These results provide preliminary evidence that cognitive remediation interventions can be successfully applied also in psychiatric inpatients experiencing an acute depressive episode.

2 December 2015 in Journal of Back and Musculoskeletal Rehabilitation
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WTWolfgang Trapp
Wolfgang Trapp
MWMatthias Weinberger
Matthias Weinberger
SESarah Erk
Sarah Erk
BFBenedikt Fuchs
Benedikt Fuchs
MMMarcus Mueller
Marcus Mueller
SLStefan Lautenbacher
Stefan Lautenbacher
BACKGROUND: Chronic low back pain (CLBP) is a serious health problem in industrialised countries and the efficacy of current treatment options is unsatisfying. OBJECTIVE: The present study examines the effects of a combined intervention that utilize

1 March 2018 in Psychiatry Research
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Journal Article
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WTWolfgang Trapp
Wolfgang Trapp
CKChristoph Kalzendorf
Christoph Kalzendorf
CBCorinna Baum
Corinna Baum
GHGöran Hajak
Göran Hajak
SLStefan Lautenbacher
Stefan Lautenbacher

1 December 2017 in Schizophrenia Research: Cognition
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Journal Article
Open access
WTWolfgang Trapp
Wolfgang Trapp
SDSimone Dotterweich
Simone Dotterweich
LHLena Hintner
Lena Hintner
HWHannah Wollny
Hannah Wollny
SLStefan Lautenbacher
Stefan Lautenbacher
GHGöran Hajak
Göran Hajak
Schizophrenia is associated with deficits in working memory (WM) and executive functioning (EF) that are present from prodrome to chronic stages of the disease and are related to social and occupational functioning. Recent empirical findings suggest that schizophrenia patients might suffer from a specific speed deficit regarding WM operations that also affects EF. To test this hypothesis, executive functioning (EF) and working memory (WM) performance of 20 schizophrenia (SC) patients, 20 patients suffering from Major Depressive Disorder (MDD) and 40 healthy control (HC) subjects were compared. While schizophrenia patients performed worse in the measure of EF, no difference between the SC and the MDD patients was found regarding WM capacity. However, the SC group was shown to have an impaired speed in encoding, retrieval and manipulation of WM contents compared to the HC group whereas the MDD group showed no such deficit. Furthermore, while in the MDD group only WM capacity was linked to EF performance, in the SC group EF was determined by both WM capacity and WM speed. Hence, increasing the speed of WM operations might be a fruitful target for future therapeutic interventions, and assessing not only the capacity but also the speed of WM might be helpful in identifying candidates for endophenotypic cognitive markers of SC.

24 May 2022 in Brain Sciences
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Journal Article
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WTWolfgang Trapp
Wolfgang Trapp
AHAndreas Heid
Andreas Heid
SRSusanne Röder
Susanne Röder
FWFranziska Wimmer
Franziska Wimmer
GHGöran Hajak
Göran Hajak
Many people with psychiatric disorders experience impairments in cognition. These deficits have a significant impact on daily functioning and sometimes even on the further course of their disease. Cognitive remediation (CR) is used as an umbrella term for behavioral training interventions to ameliorate these deficits. In most but not all studies, CR has proven effective in improving cognition and enhancing everyday functional outcomes. In this paper, after quickly summarizing the empirical evidence, practical advice to optimize the effects of CR interventions is provided. We advocate that CR interventions should be as fun and motivating as possible, and therapists should at least consider using positively toned emotional stimuli instead of neutral stimuli. Participants should be screened for basic processing deficits, which should be trained before CR of higher-order cognitive domains. CR should stimulate metacognition and utilize natural settings to invoke social cognition. Wherever possible, CR tasks should link to tasks that participants face in their everyday life. Therapists should consider that participants might also benefit from positive side effects on symptomatology. Finally, the CR approach might even be utilized in settings where the treatment of cognitive impairments is not a primary target.