【作者】 何立国； 周爱保； 游旭群；

【Author】 He Liguo~(1,2,3) Zhou Aibao~3 You Xuqun~1 1 Psychology College of Shaanxi Normal University,Xian.710062 2 Psychology Department of Shenzhen University,Shenzhen,518060 3 Education College of North West Normal University,Lanzhou,730070

【机构】 陕西师范大学心理学院； 深圳大学心理学实验室； 西北师范大学教育学院；

【摘要】 论文通过2个实验探讨了视觉表象任务信息的通达对表象过程眼动的影响。实验1采用"感知-表象"的双任务范式,比较了图片感知任务和表象任务的眼动,结果表明:在无信息通达条件下,表象任务的眼动复制了感知任务的眼动,随着任务信息的通达,表象任务的注视点持续时间、眼跳距离和眼跳时间发生变化。实验2采用言语诱发表象任务范式,分离了眼动控制变量后探讨表象任务信息通达对表象眼动的影响,结果表明:表象任务信息的通达影响注视点平均持续时间、平均眼跳时间等参数,眼动控制影响平均注视时间和平均眼跳距离等参数。眼动控制与表象任务通达水平对表象眼动的影响存在不同的机制。表象的眼动不是单纯对感知任务眼动的复制,会依赖于任务信息的通达而变化,佐证了眼动在视觉表象中起功能性作用的观点。更多还原

【Abstract】 Forty postgraduates,from 25 to 30 years old,attended two experiments respectively.All participants didn’t know the purpose of the experiment and had normal or corrected-to-normal vision.Stimulus presentation and data collection were controlled by two microcomputers.Eye movements were recorded by means of the Eye Tracking Device which made by ASL with a sample frequency of 256Hz.Referenced Brandt & Stark(1997) and Laeng & Teodorescu(2002) study,The "perception - imagery" dual task experimental paradigm was applied to compare the change of eye-movement parameters in different task information accessibility level in Experiment 1.In Experiment 2,task information accessibility effect was dissociated from eye controlling in order to see how task information accessibility levels influence visual imagery eye movements. The results revealed that under the low task information accessibility,the eye movements in visual imagery duplicate the perception.And the eye-movement parameters,such as average fixation,saccade duration,saccade distance,will change following task information accessibility levels.The second experiment replicated successfully the findings of the first experiment. Eye-movement control and task information accessibility has different influence on visual imagery processing.The eye movements in visual imagery are no only duplicate perception,but changing depending on task information accessibility.That is to say,eye movements play a functional role in visual imagery.更多还原