视觉工作记忆参与融景知觉  

Visual Working Memory Involves In Anorthoscopic Perception

作　　者：黄坚[1] 尹军[1] 高在峰[1] 丁晓伟[1] 

机构地区：[1]浙江大学心理与行为科学系,杭州310028

出　　处：《应用心理学》2014年第3期195-202,共8页Chinese Journal of Applied Psychology

摘　　要：融景知觉现象是指观察者任意时刻虽然只能观察到部分刺激模式,却能基于部分刺激模式形成完整知觉。完成融景知觉的关键在于需要将时间序列上的信息进行整合。根据视知觉与视觉工作记忆动态交互模型,完成信息整合需视觉工作记忆的参与。然而以往研究均关注融景现象的知觉加工特性,尚未涉及视觉工作记忆在该现象中的作用机制。笔者采用双任务范式,要求被试完成规则或不规则刺激模式的融景知觉,同时操纵工作记忆负荷,以考察记忆负荷对融景知觉的影响。结果发现,高记忆负荷显著降低不规则刺激的融景知觉绩效(实验一);且该效应并非由记忆负荷对融景刺激维持阶段的影响所致(实验二)。上述结果说明,至少对不规则图形的融景知觉需要视觉工作记忆参与。An object passing a narrow slit is still perceived as an integrated object in spite of being perceived partly at any moment. This phenomenon is called Anorthoscopic perception （AP）. A key aspect in anorthoscopic perception is to integrate the fractional information received at distinct time points. According to the interactive model of perception and visual working memory （VWM）, VWM plays a critical role in integrating online information in the AP. However, all previous studies on AP focused on its perceptual aspects, and the role of VWM in this phenomenon remains unknown. In the current study we addressed this issue in a dual-task paradigm. The participants were required to remember load） shapes into VWM. 1 （low load） or 3 （high During the maintenance phase of the VWM task, an anorthoscopic perception task was inserted. The stimulus in the AP could be a regular or irregular shape. The results showed that the performance of AP task was significantly impaired under high VWM load than under low load conditions, particularly for the irregular stimulus （Experiment 1 ）. This effect was not due to the maintenance impairment of visual information after the AP task （Experiment 2）. Our findings suggest that VWM is involved in the AP, at least for the irregular stimuli.

关 键 词：融景知觉 视觉工作记忆 负荷 规则刺激 不规则刺激 

分 类 号：B842.3[哲学宗教—基础心理学]