Marten W Devries

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Major depressive disorder (MDD) is characterized by high negative affect (NA) and low positive affect (PA), but little is known about emotional reactivity in daily life. The authors used experience sampling methodology to investigate changes in NA and PA following minor daily events in MDD compared with healthy participants. Contrary to expectation, MDD(More)
The form and the content of chronic auditory hallucinations were compared in three cohorts, namely patients with schizophrenia, patients with a dissociative disorder, and nonpatient voice-hearers. The form of the hallucinatory experiences was not significantly different between the three groups. The subjects in the nonpatient group, unlike those in the(More)
BACKGROUND This is the first report of results from the EURODEP Programme. AIMS To assess the prevalence of depression judged suitable for intervention in randomised samples of those aged > or = 65 in nine European centres. METHOD The GMS-AGECAT package. RESULTS Differences in prevalence are apparent, 8.8% (Iceland) to 236% (Munich). When sub-cases(More)
OBJECTIVE To investigate the emotional reactivity to small disturbances in daily life in patients with non-affective psychosis (NAP), bipolar disorder (BD) and major depression [major depressive disorder (MDD)]. METHOD Forty-two patients with NAP, 38 with BD, 46 with MDD, and 49 healthy controls were studied with the experience sampling method to assess(More)
Ideas about infant capabilities and toilet training practice have changed in the United States following cultural trends and the advice of child care experts. Anthropologists have shown that a society's specific infant training practices are adaptive to survival and cultural values. The different expectations of infant behavior of the East African Digo(More)
Background Data related to the dynamics of hallucinatory experiences of patients suffering from schizophrenia are scarce. Detecting antecedent conditions and coping strategies may aid development of targeted psychological interventions. Method We studied hallucinating and non-hallucinating patients suffering from schizophrenia spectrum disorder (n = 57),(More)
Previous studies on bipolar disorder revealed abnormalities in the function of the HPA axis, including disturbed patterns of cortisol secretion, during depressive and manic episodes. It is less clear whether these abnormalities persist after symptomatic recovery. In the present study we used the experience sampling method with intensive salivary cortisol(More)
Information about mood reactions to naturally occurring stress in remitted bipolar patients may help elucidate the mechanism by which stressors influence the propensity to manic or depressive relapse in these patients. Using the experience sampling method (ESM), we therefore investigated negative and positive mood states and their reactivity to daily(More)
Flat affect is a core symptom of schizophrenia. To date, researchers have focused primarily on emotional expression. Only recently has the emotional experience of patients with schizophrenia been studied in laboratory settings. The goal of this study is to assess emotional experience in the complex world of daily life. A structured time-sampling technique,(More)