| Summary: | 博士 === 國立政治大學 === 心理學系 === 104 === Visual recognition is a fast and accurate process. The present study adopted a progressive revelation task, which mimics the visual dynamics appropriately, to investigate the interaction of character and surroundings in the dynamic visual processing. Experiment 1 aimed to establish visual recognition curves for character and surroundings separately as baselines. The results showed that less amount of cumulated perceptual evidence was required for character than surroundings, so that it showed the object advantage effect. In Experiment 2, the non-independent relationship between the object- and background-related visual processes was verified. The performance of isolation condition with the character and surroundings presented in isolation was compared to the concurrent condition with the two presented concurrently. The results of the surroundings recognition task showed that less amount of cumulated perceptual evidence was required for concurrent condition than isolation condition. In contrast, for the character recognition task, there was no difference between these two conditions. These results supported the non-independent relationship between object- and background-related processes. Object advantage effect was replicated in the isolation condition but not in the concurrent condition, which meant that surroundings required less amount of perceptual evidence than character for visual recognition instead. In Experiment 3, interaction between object- and background-related processes was investigated by consistency effect from both the aspects of facilitation and inhibition effects. Results of Experiment 3a showed that consistency effect was only contributed by inhibition effect in the character recognition task. Results of Experiment 3b showed that both the facilitation and inhibition effects contributed to the consistency effect in the surroundings recognition task. In Experiment 4, participants were asked to report both the contents of character and surroundings. The results showed that consistency effects occurred in both of the content reports. And also the object advantage effect appeared in both of the consistent and inconsistent conditions. Overall, the results of the present study implied that object- and background-related visual processes operate in parallel while interchange information intimately at each level of the visual processing stages. The results also suggest that deployment of attention resource played an important role in the dynamic visual process.
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