Marek Preiss

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The Trail Making Test (TMT) comprises two psychomotor tasks that measure a wide range of visual-perceptual and executive functions. The purpose of this study was to provide Czech normative data and to examine the relationship between derived TMT indices and demographic variables. The TMT was administered to 421 healthy adults. Two clinical groups (n = 126)(More)
Toxoplasma gondii, a parasitic protozoan, infects about 30-60% of people worldwide. The latent toxoplasmosis, i.e. life-long presence of cysts in the brain and muscular tissues, has no effect on human health. However, infected subjects score worse in psychomotor performance tests and have different personality profiles than Toxoplasma-negative subjects. The(More)
We explore psychometric characteristics of a modified version of the Cloninger's personality questionnaire, the Temperament and Character Inventory-Revised (TCI-R) in a 200-subject sample. This sample was stratified in accordance with the Czech population. We performed principal component analyses and explored the factorial structure of the questionnaire,(More)
OBJECTIVE Toxoplasmosis is a lifelong parasitic disease that appears to be associated to schizophrenia. However, no distinguishing attributes in Toxoplasma-infected schizophrenia patients have been described as yet. METHOD We searched for differences in symptom profile, cognitive performance and treatment response between 194 Toxoplasma-free and 57(More)
BACKGROUND Methamphetamine is a neurotoxic agent. Its chronic abuse may result in cognitive impairment with negative consequences for patients' treatment and rehabilitation. The aim of the study was to compare Wisconsin Card Sorting Test profiles of Czech subjects dependent on methamphetamine with healthy individuals. SUBJECTS AND METHODS Forty-three(More)
The present study provides normative data stratified by age for the Rey Auditory Verbal Learning test Czech version (RAVLT) derived from a sample of 306 cognitively normal subjects (20-85 years). Participants met strict inclusion criteria (absence of any active or past neurological or psychiatric disorder) and performed within normal limits on other(More)
BACKGROUND Cortisol, along with other hormones of hypothalamo-pituitary-adrenal axis, belongs to one of the main factors influencing psychological and pathognomic factors, intelligence, and memory. METHODS The aim of our study was to review a large battery of psychological, performance, IQ and memory tests as to their relation with cortisol, testosterone(More)
BACKGROUND Examination of existing research on posttraumatic adjustment after disasters suggests that survivors' posttraumatic stress levels might be better understood by investigating the influence of the characteristics of the event experienced on how people thought and felt, during the event as well as afterwards. OBJECTIVE To compare survivors'(More)
In the European multi-centre study BeSeCu (Behaviour, Security, Culture), interviews were conducted in seven countries to explore survivors' emotional, behavioural, and cognitive responses during disasters. Interviews, either in groups or one-to-one, were convened according to type of event: collapse of a building; earthquake; fire; flood; and terror(More)
The Cognitive Estimation Test (CET) represents a novel diagnostic tool for quantifying the ability to provide accurate cognitive estimates. Cognitive estimates are supposed to result from frontal cortex activity. The general aim of our study was to evaluate the brain regions responsible for cognitive estimation. In a group of ten healthy volunteers we used(More)