Psychiatry Res 2011 Feb 21;185(3):315-20. Epub 2010 May 21.
Department of Psychiatry, Université catholique de Louvain, UCL, 1200 Brussels, Belgium.
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Encephale 2005 Nov-Dec;31(6 Pt 1):672-82
Geneva Emotion Research Group, Section de Psychologie, Université de Genève, 40, boulevard du Pont d'Arve, CH-1205 Genève, Suisse.
Schizophrenia is a disease that constitutes a particularly relevant way to investigate emotional processing. Indeed, major clinical signs of emotional disturbance (eg, anhedonia) suggest that some emotional mechanisms are defective in patients with schizophrenia. Evaluation can be considered as a fundamental component of the emotional system (28) and the first aim of the present study was to test the polarity hypothesis according to which different mechanisms are involved in the evaluation of positive vs negative emotional events. Read More
Psychiatry Res 2006 Aug 1;143(2-3):135-45. Epub 2006 Aug 1.
Department of Psychiatry, Ilsan Hospital, National Health Insurance Corporation, Gyeonggi-do, Korea.
To investigate the nature of emotional experience in schizophrenia, we examined emotional responses to affective stimuli. Twenty-one outpatients with schizophrenia (9 paranoid, 12 nonparanoid) and 20 normal controls rated the arousal and valence that they experienced from the presentation of 60 pictures. Schizophrenia patients displayed less emotional responsivity to the positive stimuli and they displayed diverse responsivity to the negative stimuli, which depended upon arousal level. Read More
Psychiatry Res 2011 Jan 23;185(1-2):44-8. Epub 2010 May 23.
Department of Biological Psychiatry, Cuban Neurosciences Center, Havana City, Cuba.
It is well established that schizophrenia is associated with difficulties in recognizing facial emotional expressions, but few studies have reported the presence of this deficit among their unaffected relatives. This study attempts to add new evidence of familial association on an emotional expression processing test. The study evaluated the performance of 93 paranoid schizophrenia patients, 110 first-degree relatives of probands from multiplex schizophrenia families, and 109 nonpsychiatric controls on a facial emotional recognition test using a computer morphing technique to present the dynamic expressions. Read More
Eur Psychiatry 2010 Mar 21;25(2):75-9. Epub 2009 Jun 21.
INSERM U, Rouen University Hospital Charles Nicolle, France.
The colour-word Emotional Stroop task (ES task) has been proposed to assess the interferences between emotion and attention. Using this task, first, we examined how attention (using reaction times) can be modified by emotionally relevant words in schizophrenics as compared with controls as a function of the emotional significance of the word; second, we tested the assumption that schizophrenics with the most negative symptoms will show higher impairment in relationship to negative emotional words. In general, schizophrenics were slower to react. Read More