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  • 1
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Alexithymie ; Entkopplungshypothese ; Key words Alexithymia ; Elektrodermal activity ; Decoupling hypothesis ; Dissociation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The theoretical background of the present investigation was the decoupling hypothesis of alexithymia, which presumes for alexithymic individuals a dissociation of psychophysiological indicators of emotion from verbal cognitive awareness of one’s emotional state. To study alterations in reactivity to emotionally distressing stimuli in alexithymic individuals, 12 high-alexithymic and 14 low-alexithymic subjects (separated by TAS) out of a general sample of 54 were investigated. All subjects were exposed to cognitive (CPT) and affect inductive (film sequences) distress. During stimulus exposition electrodermal activity (sponateous fluctuations) was recorded. After stimulus exposition the subjects assessed their emotional reaction towards the film sequences (DAS). Concerning electrodermal activity no differences were found between high and low alexithymics under cognitive distress. In any case a significant autonomous arousal was registered. However, only the low alexithymic subjects but not the high alexithymics showed a significant increase of spontaneous fluctuations as expression of autonomous arousal during presentation of affect inductive stimuli. The altered psychophysiological reactivity found in high alexithymics in contrast to low alexithymic subjects was revealed specifically for the processing of emotional qualified stimuli. However, there was no difference between the groups in cognitive self assessment of emotional response towards the film sequences. The findings are discussed with reference to neurophysiological and psychodynamic models and the decoupling hypothesis of alexithymia.
    Notes: Zusammenfassung Theoretischer Hintergrund dieser Untersuchung ist die sog. Entkopplungshypothese der Alexithymie. Diese postuliert für alexithyme Individuen eine Dissoziation psychophysiologischer Aktivierungsprozesse und des subjektiven Affekterlebens speziell unter affektinduktiven Belastungen. 12 hochalexithyme und 14 niedrigalexithyme Probanden aus einer Gesamtstichprobe von 54 Individuen wurden bezüglich der elektrodermaler Spontanfluktuationsrate unter affektneutraler (Reiz-Reaktions-Aufgabe) und affektinduktiver Stimulierung (Videofilme) untersucht. Ihr Affekterleben während der Filmbetrachtung schätzten die Probanden selbst ein. Unter kognitiver Belastung bestanden hinsichtlich der elektrodermalen Aktivierung keine Gruppenunterschiede. Es kam in jedem Falle zu einem signifikanten Anstieg der Spontanfluktuationsrate. Unter affektinduktiver Belastung kam es jedoch nur bei den Niedrigalexithymen nicht aber bei den hochalexithymen Probanden zu einem signifikanten Anstieg der Spontanfluktuationsrate als Ausdruck einer autonomen Aktivierung. In der Bewertung ihres reizbezogenen Affekterlebens unterschieden sich die Gruppen nicht. Diese Befunde sind in Übereinstimmung mit der Entkopplungshypothese, und werden im Hinblick auf neuropsychologische und psychodynamisch-interaktionsdynamische Modellvorstellungen diskutiert.
    Type of Medium: Electronic Resource
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