Hendrik Müller

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BACKGROUND Impaired cortical inhibition is a well-established finding in schizophrenia patients and has been linked to dysfunctional gamma-aminobutyric acid (GABA)ergic transmission. However, there have been no previous studies investigating cortical excitability with particular regard to intracortical inhibitory networks in antipsychotic-naive subjects at(More)
Antipsychotics, cognitive behavioral therapy (CBT), and omega-3-fatty acids have been found superior to control conditions as regards prevention of psychosis in people at-risk of first-episode psychosis. However, no large-scale trial evaluating the differential efficacy of CBT and antipsychotics has been performed yet. In PREVENT, we evaluate CBT,(More)
The aim of the present study was to evaluate the combined test-retest and interrater reliability of different psychiatric lifetime diagnoses yielded in the course of a family study in elderly patients and controls. The following interviews and questionnaires were used in combination: the Composite International Diagnostic Interview (CIDI), the Structured(More)
Knowledge on the reliability of family history information is essential for every family study. However, systematic analyses of interinformant reliability of family history information on individual relatives have not yet been published. Consequently, family history information on 1306 first-degree relatives and spouses of patients and of control subjects(More)
The aim of the present study was to determine and assess a possible selection bias in an epidemiologic investigation in the elderly. A stratified sample of 1305 probands aged 60–99 years was initially contacted by mail and then by telephone to obtain their consent to participate in a psychiatric interview. A liberal recruitment procedure led to interview(More)
The aim of psychotherapy among individuals at clinical high risk (CHR) for psychosis is to prevent transition to full-blown psychosis. Psychotherapy in individuals with a first-episode psychosis (FEP) aims to reduce relapse rates. Remission of (pre-) psychotic symptoms, psychosocial functioning, quality of life, comorbid disorders and self-esteem are also(More)
AIM Schizophrenia is a heterogeneous disorder that presents differently in men and women: men show a higher propensity to negative symptoms, lower social functioning, earlier age at onset and co-morbid substance abuse, whereas women display more affective symptoms. It is unknown whether these differences extend to subjects at high risk (HR) of psychosis.(More)
There is no study indicating that informant-derived information on dementia and depression (i.e. family history information) is equivalently valid for first-degree relatives and for index subjects (i.e. patients and control subjects). However, this unproven assumption is the basis for the frequent, possibly inappropriate, use of instruments validated for(More)