Factors Affecting Seasonal Affective Disorder

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1. Although many studies have focused on individual factors relating to Seasonal Affective Disorder (SAD), this study sought to extend such research by determining whether cognitive, behavioral and psychophysiological factors that associate to individuals with nonseasonal depression would correlate to those of SAD (Rohan, Sigmon & Dorhofer, 2003). 2. Before gathering the data, the researchers had a couple hypotheses in mind. They first hypothesized that women with a history of SAD would encounter and report more negative thinking as well as reduced activity frequency and enjoyment during the winter time. Not only that, but they expected that a predicted ruminative response style in the fall would help foretell the severity of depressive symptoms later during the winter time. The researchers then went on to assume that women with a history of SAD would ultimately report more depressed mood and experience greater psychophysiological reactivity as a response to low light intensity stimuli during the winter time relative to controls. 3. The type of research method involved was a correlational study, however the researchers ended up taking on a longitudinal, multimethod approach. Twenty women with a history of SAD and twenty women with equivalent age and education level were recruited for this study, however two participants dropped out of the study who had a history of SAD, leaving them with eighteen SAD participants and twenty controls. Each participant went through

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