Philipp Koschorke

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BACKGROUND Motor symptoms are frequent in schizophrenia and relevant to the diagnosis of subtypes. However, the assessment has been limited to observations recorded in scales and experimental designs. The aim of this study was to use wrist actigraphy to obtain motor activity data in 3 schizophrenia subtypes. METHODS In total, 60 patients with(More)
Motor symptoms are frequent in schizophrenia and relevant to diagnosis. They are usually assessed by clinical observation and ratings based on psychometric scales. However, investigations with quantitative measurements are rare. To understand the relationship between the objective parameters of a quantitative motor activity measurement and the items related(More)
Although cycloid psychoses share psychopathological features with schizophrenia, their course and outcome are comparable to those seen in bipolar affective disorder. The diagnostic category is of interest because it has been demonstrated that cycloid psychoses can be diagnosed reliably and distinguished from other psychoses based on treatment response and(More)
There are indications that atypical antipsychotics differ in the probability of causing motor retardation. Whereas olanzapine seems to exert sedation, risperidone might slow patients because of parkinsonism or increased negative symptoms. Objective data on gross motor activity are not available. We present actigraphic data of 16 schizophrenia patients(More)
Despite the use of actigraphy in depression research, the association of depression ratings and quantitative motor activity remains controversial. In addition, the impact of recurring episodes on motor activity is uncertain. In 76 medicated inpatients with major depression (27 with a first episode, 49 with recurrent episodes), continuous wrist actigraphy(More)
Motor symptoms in schizophrenia occur frequently and are relevant to diagnosis and antipsychotic therapy. To date motor symptoms are difficult to assess and their pathobiology is a widely unresolved issue. The Bern Psychopathology Scale for the assessment of system-specific psychotic symptoms (BPS) was designed to identify homogenous patient groups by(More)
The translation from psychiatric core symptoms to brain functions and vice versa is a largely unresolved issue. In particular, the search for disorders of single brain regions explaining classical symptoms has not yielded the expected results. Based on the assumption that the psychopathology of psychosis is related to a functional imbalance of higher-order(More)
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