Alexithymia has been linked to various disorders, including compulsive behaviors, anxiety disorders, and physical conditions with or without symptoms. It has been hypothesized that these disorders result from the alexithymic inability to differentiate and elaborate affect, which gives rise to physiological arousal and a negative subjective state, which are not regulated by psychological strategies. We tested these hypothesized mechanisms by comparing 42 alexithymic subjects with 42 sex- and race-matched non-alexithymic subjects on physiological and subjective responses to an autogenic relaxation exercise and three different laboratory stressors. Alexithymic subjects had tonically greater electrodermal activity and reported more arousal and displeasure in general than nonalexithymic subjects. Groups did not differ in the degree to which they relaxed, but alexithymic subjects reported less enjoyment of, less involvement in, and poorer imagery during relaxation. All three stressors evoked reactivity, and alexithymic women had less heart rate change when viewing disgusting scenes than did nonalexithymic women; in general, however, groups did not differ in reactivity or recovery to the stressors. We find some support for the hypothesized mechanisms of alexithymia, and we suggest specific links between alexithymia and clinical disorders.
This article looks at how previous practice of portraiture prepared the way for self-presentation on social networking sites. A portrait is not simply an exercise in the skillful or “realistic” depiction of a subject. Rather, it is a rhetorical exercise in visual description and persuasion and a site of intricate communicative processes. A long evolution of visual culture, intimately intertwined with evolving notions of identity and society, was necessary to create the conditions for the particular forms of self-representation we encounter on Facebook. Many of these premodern strategies prefigure ones we encounter on Facebook. By delineating the ways current practices reflect earlier ones, we can set a baseline from which we can isolate the precise novelty of current practice in social networking sites.
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