上下文预期在快速场景识别中的作用

发布时间：2018-04-21 01:03

本文选题：快速场景识别 + 上下文预期　；参考：《心理学报》2017年05期

【摘要】：本研究首先考察上下文预期是否能够影响快速场景识别,进而通过比较不同空间频率的场景信息来探究上下文预期在快速场景识别不同阶段的作用。共包括3个实验:实验1采用双眼竞争范式,考察对快速呈现场景刺激的主观选择是否受到上下文预期的影响;实验2采用词汇分类与快速场景识别的双任务范式,比较预期与非预期条件下快速场景识别绩效的差异;实验3分别以低频信息(实验3a)和高频信息(实验3b)作为实验材料,探讨预期效应的作用阶段。结果发现:上下文预期可以影响快速场景识别过程中的主观选择与反应绩效;对不同空间频率的场景信息,场景刺激与预期相一致时均可以提高辨别力,但预期对反应偏好的影响只发生在对高空间频率场景信息的加工阶段。因此,上下文预期在快速场景识别不同加工阶段的作用不同,快速场景识别需要结合不同空间频率信息加工的结果。
[Abstract]:This study first investigates whether context expectation can affect fast scene recognition and then explores the role of context expectation in different stages of fast scene recognition by comparing scene information with different spatial frequencies. There are three experiments: experiment 1 uses binocular competition paradigm to investigate whether the subjective choice of fast presentation scene stimulus is affected by context expectation; experiment 2 adopts a two-task paradigm of lexical classification and fast scene recognition. In experiment 3, low-frequency information (experiment 3a) and high-frequency information (experiment 3b) were used as experimental materials to explore the effect stage of expected effect. The results show that context expectation can affect the subjective selection and response performance in the process of rapid scene recognition, and the scene stimulation and expectation can improve the discriminative ability when the scene information of different spatial frequency is consistent with the expectation. However, the effect of expectation on response preference occurs only in the processing stage of high spatial frequency scene information. Therefore, context is expected to play a different role in different processing stages of fast scene recognition, and fast scene recognition needs to combine the results of processing with different spatial frequency information.
【作者单位】：浙江大学心理与行为科学系;
【基金】：国家自然科学基金项目(31371039)资助
【分类号】：TP391.41

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