Time course of encoding and maintenance of stereoscopically induced size–distance scaling

IF 1.7 4区 心理学 Q3 PSYCHOLOGY, EXPERIMENTAL VISUAL COGNITION Pub Date : 2022-11-26 DOI:10.1080/13506285.2023.2174232
Wanyi Guan, Binglong Li, J. Qian
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Abstract

ABSTRACT The mechanism of size constancy assures that an object is perceived to be constant in size despite that its retinal size varies with viewing distance. Conversely, an object can be perceived as illusorily larger if the perceived distance becomes greater, due to the size–distance scaling mechanism. The present study aimed at exploring how size–distance scaling is modulated by the encoding duration and how its memory is affected by the retention duration. In Experiment 1, we presented two stimuli simultaneously at two stereoscopic depth planes and manipulated the presentation duration, and found that the magnitude of the size scaling increased with presentation duration. In Experiment 2, we examined the maintenance of size–distance scaling when component stimulus was kept in working memory with variable delays. The results showed that the size scaling was reliably retrieved from working memory if there was no disparity manipulation on the to-be-memorized item, but it decreased with retention if a disparity was applied to the to-be-memorized item. The findings suggest that although the post-scaling size can be stored in working memory, the scaling mechanism may still be in effect when there were conflicts in the oculomotor cues and disparity cues that produces depth perception.
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编码和维持立体诱导尺寸-距离缩放的时间过程
尺寸恒定的机制保证了一个物体被认为是恒定的大小,尽管它的视网膜大小随观看距离而变化。相反,由于尺寸-距离缩放机制,如果感知距离变大,物体就会被误认为变大。本研究旨在探讨编码持续时间如何调节大小-距离缩放,以及其记忆如何受到保留持续时间的影响。在实验1中,我们在两个立体深度平面上同时呈现两个刺激,并对呈现时间进行操纵,发现尺寸缩放幅度随呈现时间的增加而增加。在实验2中,我们考察了在工作记忆中以可变延迟保存成分刺激时尺寸-距离尺度的维持情况。结果表明,在未对待记忆项目进行视差操作的情况下,工作记忆的尺寸缩放量能够得到可靠的恢复,但在待记忆项目上施加视差操作时,工作记忆的尺寸缩放量会随着记忆的保留而降低。研究结果表明,虽然后尺度可以存储在工作记忆中,但当产生深度知觉的动眼线索和视差线索存在冲突时,尺度机制可能仍然有效。
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来源期刊
VISUAL COGNITION
VISUAL COGNITION PSYCHOLOGY, EXPERIMENTAL-
CiteScore
4.20
自引率
10.00%
发文量
29
期刊介绍: Visual Cognition publishes new empirical research that increases theoretical understanding of human visual cognition. Studies may be concerned with any aspect of visual cognition such as object, face, and scene recognition; visual attention and search; short-term and long-term visual memory; visual word recognition and reading; eye movement control and active vision; and visual imagery. The journal is devoted to research at the interface of visual perception and cognition and does not typically publish papers in areas of perception or psychophysics that are covered by the many publication outlets for those topics.
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