外周与中心情绪信息的返回抑制效应

Effects of Inhibition of Return on Central and Peripheral Information of Real Emotional Scene Pictures

目的:探讨外周信息和中心情绪信息对返回抑制的影响。方法:采用真实情绪场景图片,结合隐性附随搜索范式,考察线索化中心情绪信息与外周信息的返回抑制效应。结果:①线索化负性中心信息时,返回抑制效应消失且出现易化效应;线索化中性中心信息时,返回抑制效应依然存在。②线索化外周信息时,不管中心信息的情绪性如何,返回抑制效应均消失且均出现易化效应。结论:返回抑制是一种受外界情绪刺激干扰,受之前线索化位置或客体加工深度影响的非"盲目"机制。

Objective:Inhibition of return(IOR)refers to a phenomenon that is prolonged in response to an object or position in which the individual was observed before,and is an inhibitory mechanism in selective attention.Real scene emotional picture is a kind of stimulation with higher biological meaning,which is composed of emotional central information and neutral background.This study aimed to explore the effect of IOR on peripheral information or emotional central information.Methods:Central and peripheral information of real emotional scene pictures was defined according to eye movement index,and covert probe-following-search paradigm was used to analyze the difference effects of IOR between cued central emotional information and peripheral information.Results:①When the negative central information was cued,the effect of IOR disappeared while the effect of facilitation of return appeared.When neutral central information was cued,the effect of IOR still existed.②Regardless of emotional type about central information,the effect of IOR disappeared and the effect of facilitation appeared when the peripheral information was cued.Conclusion:The IOR is not a blindness mechanism influenced by external emotional stimuli and processing depth about cued positions or objects.