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Common and Distinct Information Processing Biases in Social Anxiety and Depression as Revealed by Event-related Brain Potentials

出版	University of Delaware, 2009
ISBN	11093936449781109393644
URL	http://books.google.com.hk/books?id=4WuInQAACAAJ&hl=&source=gbs_api

註釋The study of common and distinct information processing biases in anxiety and depression is of great importance to understanding the development, maintenance, and treatment of negative affective psychopathology. Event-related brain potentials (ERPs) were utilized to examine the relationship between attention and interpretation biases and dimensions of social anxiety and depression. Generally consistent with a vigilance-avoidance hypothesis, social anxiety was associated with early enhancements of attention to emotional significance followed by reduced threat processing reflected in the stimulus-locked frontal N1 and N2 and centro-parietal early P3, respectively. Depression, on the other hand, was associated with enhancement of later response-related control processes reflected in the response-locked error-related negativity. Social anxiety and depression showed a common negative interpretation bias as indexed by the stimulus-locked N4 expectancy violation effect. Implications of these findings for research and theory of information processing biases in social anxiety, depression and negative affective psychopathology more generally are considered.