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Abstract
The relationship between the evoked heart-rate (HR) reaction to phobic pictures and the attentional bias was investigated in specific phobics. Forty-five specific phobic and 39 control participants were shown phobia-related pictures while HR was being recorded; they were administered the modified dot-probe task, the modified Stroop task, and gave subjective ratings of pictures. Unlike control participants, specific phobics showed HR acceleration to phobia-related pictures, which was significantly correlated with their fear ratings, and a significant Stroop interference effect. There were no group differences with regard to an attentional bias in the dot-probe task but early deceleration of the HR reaction to phobic pictures was related to more pronounced selective attention toward these stimuli in phobics. The results provide partial support for Cook and Turpin's (1997) conjecture of a relationship between the early decelerative orienting component of the HR reaction and the selective attentional bias in phobia.
Acknowledgments
This study was supported by the Deutsche Forschungsgemeinschaft (Sa 735/13-1,2). We are grateful for the contribution to the data collection by Nicole Kowald, Swenja Piltz, Renate Schmidt, and Angela Ross.
