Time Pressure Inhibits Dynamic Advantage in the Classification of Facial Expressions of EmotionReport as inadecuate




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Recent studies suggest an advantage in the recognition of dynamic over static facial expressions of emotion. Here, we explored the differences in the processing of static and dynamic faces under condition of time pressure. A group of 18 participants classified static and dynamic facial expressions angry, happy, and neutral. In order to increase the goal-directed attention, instructions emphasized speed and announced time pressure in the interval for the response maximal 600 ms. Participants responded faster and more accurately in the static than in the dynamic condition. Event-related potentials ERPs showed larger amplitude of the P1 90–130 ms and LPC 300–600 ms components for dynamic relative to static stimuli, indicating enhanced early visual processing and emotional attention. On the other hand, the N170 was more negative in static relative to dynamic faces, suggesting better structural encoding for static faces under time pressure. The present study shows some advantages in the processing of static over dynamic facial expressions of emotion when the top-down goal-driven attention is strengthened.



Author: Zhongqing Jiang , Wenhui Li, Guillermo Recio, Ying Liu, Wenbo Luo, Doufei Zhang, Dan Sun

Source: http://plos.srce.hr/



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