Glossiness perception and its pupillary response

IF 1.5 4区 心理学 Q4 NEUROSCIENCES
Hideki Tamura, Shigeki Nakauchi, Tetsuto Minami
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引用次数: 0

Abstract

Recent studies have revealed that pupillary response changes depend on perceptual factors such as subjective brightness caused by optical illusions and luminance. However, the manner in which the perceptual factor that is derived from the glossiness perception of object surfaces affects the pupillary response remains unclear. We investigated the relationship between the glossiness perception and pupillary response through a glossiness rating experiment that included recording the pupil diameter. We prepared general object images (original) and randomized images (shuffled) that comprised the same images with randomized small square regions as stimuli. The image features were controlled by matching the luminance histogram. The observers were asked to rate the perceived glossiness of the stimuli presented for 3,000 ms and the changes in their pupil diameters were recorded. Images with higher glossiness ratings constricted the pupil size more than those with lower glossiness ratings at the peak constriction of the pupillary responses during the stimulus duration. The linear mixed-effects model demonstrated that the glossiness rating, image category (original/shuffled), variance of the luminance histogram, and stimulus area were most effective in predicting the pupillary responses. These results suggest that the illusory brightness obtained by the image regions of high-glossiness objects, such as specular highlights, induce pupil constriction.

Abstract Image

光泽感及其瞳孔反应
最近的研究表明,瞳孔反应的变化取决于感知因素,如光学幻觉和亮度引起的主观亮度。然而,源自物体表面光泽度感知的感知因素是如何影响瞳孔反应的仍不清楚。我们通过一项包括记录瞳孔直径在内的光泽度评级实验来研究光泽度感知与瞳孔反应之间的关系。我们准备了一般物体图像(原始图像)和随机图像(洗牌图像),后者由带有随机小方块区域的相同图像作为刺激物。图像特征通过匹配亮度直方图来控制。观察者被要求对呈现 3,000 毫秒的刺激物的光泽度进行评分,并记录其瞳孔直径的变化。在刺激持续期间瞳孔反应收缩的峰值,光泽度评级较高的图像比光泽度评级较低的图像更能收缩瞳孔。线性混合效应模型表明,光泽度评级、图像类别(原始图像/混淆图像)、亮度直方图方差和刺激面积对预测瞳孔反应最有效。这些结果表明,高光泽度物体图像区域获得的虚幻亮度(如镜面高光)会诱发瞳孔收缩。
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来源期刊
Vision Research
Vision Research 医学-神经科学
CiteScore
3.70
自引率
16.70%
发文量
111
审稿时长
66 days
期刊介绍: Vision Research is a journal devoted to the functional aspects of human, vertebrate and invertebrate vision and publishes experimental and observational studies, reviews, and theoretical and computational analyses. Vision Research also publishes clinical studies relevant to normal visual function and basic research relevant to visual dysfunction or its clinical investigation. Functional aspects of vision is interpreted broadly, ranging from molecular and cellular function to perception and behavior. Detailed descriptions are encouraged but enough introductory background should be included for non-specialists. Theoretical and computational papers should give a sense of order to the facts or point to new verifiable observations. Papers dealing with questions in the history of vision science should stress the development of ideas in the field.
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