知觉组织对时序知觉的双重影响:同时判断任务的证据

本研究探讨知觉组织对时序知觉的双重影响。实验采用三条线段构成的C形为实验材料,操纵图形朝向和SOA水平(实验1和实验2)、图形颜色(实验3)以及反应限制(实验4),要求被试完成同时判断任务。结果发现,在不同的SOA条件下,图形对向条件的同时判断频率均显著高于图形反向条件(实验1),即使在知觉组织线索弱化时这种现象仍然存在(实验2和实验3),而且知觉组织对时序知觉的影响不是由于被试的反应偏向导致的(实验4)。结果说明知觉组织对时序知觉存在双重影响:当两个刺激同时出现时,知觉组织能够提高时序知觉表现; 而当两个刺激非同时出现时,知觉组织显著降低时序知觉表现。

The Dual Effect of Perceptual Grouping on Temporal Order Perception:The Evidence From Simultaneity Judgment Task

The goal of the present study was to investigate the dual effect of perceptual grouping on temporal order perception.Participants performed a simultaneity judgment task,two stimuli were presented encouraged perceptual grouping or not.In experiment 1,We found an effect of perceptual grouping on simultaneity temporal order perception.Specifically,the proportion of simultaneity judgment was significant higher when the stimuli were presented that encouraged perceptual grouping.In Experiment 2 and Experiment 3,we weaken the perceptual grouping conditions by varying the length of horizontal line of the configuration and the color of both the target configuration in order to examine this phenomenon further.These results still revealed an influence of perceptual grouping on simultaneity temporal order perception.In experiment 4,participants were asked to make simultaneously judgments only if they had undoubtedly perceived simultaneous presentations in the condition of restrictive instruction.In the unrestricted condition they can make simultaneously judgments when they perceived simultaneity as well as uncertainty.It was found that there was no significant difference in the frequency of judgement between these conditions.The results indicate that perceptual grouping can improve or impair the performance of temporal order perception.