I-Perception最新文献_第3页

Characterization of human lightness discrimination thresholds for independent spectral variations. 独立光谱变化的人类亮度辨别阈值的特征。

IF 2.4 4区心理学

I-Perception Pub Date : 2024-09-26 eCollection Date: 2024-09-01 DOI: 10.1177/20416695241274662

Devin Reynolds, Vijay Singh

{"title":"Characterization of human lightness discrimination thresholds for independent spectral variations.","authors":"Devin Reynolds, Vijay Singh","doi":"10.1177/20416695241274662","DOIUrl":"https://doi.org/10.1177/20416695241274662","url":null,"abstract":"The lightness of an object is an intrinsic property that depends on its surface reflectance spectrum. The visual system estimates an object's lightness from the light reflected off its surface. However, the reflected light also depends on object extrinsic properties of the scene, such as the light source. For stable perception, the visual system needs to discount the variations due to the object extrinsic properties. We characterize this perceptual stability for variation in two spectral properties of the scene: the reflectance spectra of background objects and the intensity of light sources. We measure human observers' thresholds of discriminating computer-generated images of 3D scenes based on the lightness of a spherical target object in the scene. We measured change in discrimination thresholds as we varied the reflectance spectra of the objects and the intensity of the light sources in the scene, both individually and simultaneously. For small amounts of extrinsic variations, the discrimination thresholds remained nearly constant indicating that the thresholds were dominated by observers' intrinsic representation of lightness. As extrinsic variation increased, it started affecting observers' lightness judgment and the thresholds increased. We estimated that the effects of extrinsic variations were comparable to observers' intrinsic variation in the representation of object lightness. Moreover, for simultaneous variation of these spectral properties, the increase in threshold squared compared to the no-variation condition was a linear sum of the corresponding increase in threshold squared for the individual properties, indicating that the variations from these independent sources combine linearly.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"15 5","pages":"20416695241274662"},"PeriodicalIF":2.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11475098/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Can we estimate which colors our participants see? Comparing results from different gamma correction methods 我们能估计出参与者看到的颜色吗？比较不同伽玛校正方法的结果

IF 1.9 4区心理学

I-Perception Pub Date : 2024-09-17 DOI: 10.1177/20416695241278562

Déborah Epicoco, Domicele Jonauskaite, Christine Mohr, C. Alejandro Parraga

{"title":"Can we estimate which colors our participants see? Comparing results from different gamma correction methods","authors":"Déborah Epicoco, Domicele Jonauskaite, Christine Mohr, C. Alejandro Parraga","doi":"10.1177/20416695241278562","DOIUrl":"https://doi.org/10.1177/20416695241278562","url":null,"abstract":"In experimental color research, one must ensure that color is displayed and described reliably. When monitors are involved, colors are displayed through device-dependent color systems. However, these values must be translated into device-independent color systems to interpret what people perceive, often involving techniques such as gamma correction. We sought to explore the feasibility of estimating gamma instead of relying on direct gamma measurements, which typically require specialized equipment like a chromameter. Potential solutions include a computerized perception-based gamma estimation task or adopting the industry-standard gamma value of 2.2. We compared these two solutions against the chromameter measurements in the context of a color-matching task. Thirty-nine participants visually matched red, yellow, green, and blue physical objects using a computerized color picker. Starting from these color choices, we applied two RGB-to-CIE Lab color conversion methods: one using a perception-based gamma estimation and another using the industry-standard gamma. Color values obtained with the chromameter differed from the other two methods by 6–15 JNDs. Small differences existed between the results obtained using the perception-based task and the industry-standard gamma. Thus, we conclude that when standard viewing conditions cannot be assumed, adopting a gamma value of 2.2 should suffice.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"51 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142266224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Varieties of pictorial vision. 图像视觉的多样性

IF 2.4 4区心理学

I-Perception Pub Date : 2024-09-02 eCollection Date: 2024-09-01 DOI: 10.1177/20416695241267371

Jan Koenderink, Andrea van Doorn, Johan Wagemans

引用次数: 0

Bilateral rubber hand illusion induced by unilateral visuotactile stimulation. 单侧视觉触觉刺激诱发的双侧橡胶手幻觉

IF 2.4 4区心理学

I-Perception Pub Date : 2024-09-02 eCollection Date: 2024-09-01 DOI: 10.1177/20416695241278277

Shinya Yamamoto

引用次数: 0

The well-tempered color circle: A chromatic Gestalt. 调和的色环：色度格式塔

IF 2.4 4区心理学

I-Perception Pub Date : 2024-08-22 eCollection Date: 2024-07-01 DOI: 10.1177/20416695241269314

Jan J Koenderink, Andrea J van Doorn, Doris I Braun

引用次数: 0

The effect of shape on visual size perception. 形状对视觉大小感知的影响

IF 2.4 4区心理学

I-Perception Pub Date : 2024-08-21 eCollection Date: 2024-07-01 DOI: 10.1177/20416695241270301

Xiaolin Zhang, Shujie Li, Keli Yin

{"title":"The effect of shape on visual size perception.","authors":"Xiaolin Zhang, Shujie Li, Keli Yin","doi":"10.1177/20416695241270301","DOIUrl":"10.1177/20416695241270301","url":null,"abstract":"The Delboeuf illusion occurs when two circles (test figures) of equal radius are placed side by side and surrounded by concentric circles (inducers) of varying radii, resulting in the test figure being misestimated depending on the size of the surrounding inducer. This study conducted three experiments to explore the impact of shape and the contour attraction and parallel attraction on the Delboeuf illusion for different shapes. In Experiment 1 (n = 64), the test figures remained as circles while the inducers varied in shape. Experiment 2 (n = 64) involved simultaneous changes in the shape of both the test figures and the inducers. Experiment 3 (n = 64) replicated Experiment 2, with the exception that the areas of the inducers were equal and the distances between the inducers and the test figures were also equal. We conclude that the shape of the inducer and the test figure had an impact on the visual size perception, and in the magnitude of the Delboeuf illusion, varied depending on contour attraction. Configurations with circles or shapes resembling circles exhibit contour attraction, while configurations with shapes possessing longer parallel lines shift toward parallel attraction, both attractions enhance the perceived magnitude of the Delboeuf illusion.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"15 4","pages":"20416695241270301"},"PeriodicalIF":2.4,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11342332/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142056832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Looking with or without seeing in an individual with age-related macular degeneration impairing central vision. 患有老年性黄斑变性、中心视力受损的人，看东西时有或没有视力。

IF 2.4 4区心理学

I-Perception Pub Date : 2024-08-14 eCollection Date: 2024-07-01 DOI: 10.1177/20416695241265821

Li Zhaoping

{"title":"Looking with or without seeing in an individual with age-related macular degeneration impairing central vision.","authors":"Li Zhaoping","doi":"10.1177/20416695241265821","DOIUrl":"10.1177/20416695241265821","url":null,"abstract":"Looking leads gaze to objects; seeing recognizes them. Visual crowding makes seeing difficult or impossible before looking brings objects to the fovea. Looking before seeing can be guided by saliency mechanisms in the primary visual cortex (V1). We have proposed that looking and seeing are mainly supported by peripheral and central vision, respectively. This proposal is tested in an observer with central vision loss due to macular degeneration, using a visual search task that can be accomplished solely through looking, but is actually impeded through seeing. The search target is an uniquely oriented, salient, bar among identically shaped bars. Each bar, including the target, is part of an \" <math><mo>\"</mo> <mi>X</mi></math> \" shape. The target's <math><mo>\"</mo> <mi>X</mi></math> is identical to, although rotated from, the other <math><mo>\"</mo> <mi>X</mi></math> 's in the image, which normally causes confusion. However, this observer exhibits no such confusion, presumably because she cannot see the <math><mo>\"</mo> <mi>X</mi></math> 's shape, but can look towards the target. This result demonstrates a critical dichotomy between central and peripheral vision.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"15 4","pages":"20416695241265821"},"PeriodicalIF":2.4,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11325320/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141989125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Individual factors and vection in younger and older adults: How sex, field dependence, personality, and visual attention do (or do not) affect illusory self-motion. 年轻人和老年人的个体因素和视线：性别、场地依赖性、性格和视觉注意力如何影响（或不影响）幻觉自我运动。

IF 2.4 4区心理学

I-Perception Pub Date : 2024-08-12 eCollection Date: 2024-07-01 DOI: 10.1177/20416695241270302

Brandy Murovec, Julia Spaniol, Behrang Keshavarz

{"title":"Individual factors and vection in younger and older adults: How sex, field dependence, personality, and visual attention do (or do not) affect illusory self-motion.","authors":"Brandy Murovec, Julia Spaniol, Behrang Keshavarz","doi":"10.1177/20416695241270302","DOIUrl":"10.1177/20416695241270302","url":null,"abstract":"An important aspect to an immersive experience in Virtual Reality is vection, defined as the illusion of self-motion. Much of the literature to date has explored strategies to maximize vection through manipulations of the visual stimulus (e.g., increasing speed) or the experimental context (e.g., framing of the study instructions). However, the role of individual differences (e.g., age, biological sex) in vection susceptibility has received little attention. The objective of the current study was to investigate the influence of individual-difference factors on vection perception in younger and older adults. Forty-six younger adults (M age = 25.1) and 39 older adults (M age = 72.4) completed assessments of personality traits, field dependence, and visual attention prior to observing a moving visual stimulus aimed at inducing circular vection. Vection was measured using self-reports of onset latency, duration, and intensity. Results indicated that, in both age groups, females experienced longer-lasting vection compared to males. Additionally, the level of field dependence was related to vection intensity and duration in males but not in females. Variability in vection intensity was best explained by a mixture of biological, perceptual, cognitive, and personality variables. Taken together, these findings suggest that individual factors are important for understanding differences in vection susceptibility.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"15 4","pages":"20416695241270302"},"PeriodicalIF":2.4,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11320702/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The mechanism for the specificity of gaze direction: Inhibiting background location. 凝视方向特异性的机制：抑制背景位置

IF 2.4 4区心理学

I-Perception Pub Date : 2024-08-12 eCollection Date: 2024-07-01 DOI: 10.1177/20416695241270303

Airui Chen, Weixia Han, Wei Wang, Bo Dong

引用次数: 0

Material perception across different media-comparing perceived attributes in oil paintings and engravings. 不同媒介的物质感知--比较油画和雕刻的感知属性。

IF 2.4 4区心理学

I-Perception Pub Date : 2024-08-03 eCollection Date: 2024-07-01 DOI: 10.1177/20416695241261140

Yuguang Zhao, Jeroen Stumpel, Huib de Ridder, Maarten W A Wijntjes

{"title":"Material perception across different media-comparing perceived attributes in oil paintings and engravings.","authors":"Yuguang Zhao, Jeroen Stumpel, Huib de Ridder, Maarten W A Wijntjes","doi":"10.1177/20416695241261140","DOIUrl":"10.1177/20416695241261140","url":null,"abstract":"We investigated the influence of the medium on the perception of depicted objects and materials. Oil paintings and their reproductions in engravings were chosen because they are vastly distinctive media while having completely identical content. A total of 15 pairs were collected, consisting of 88 fragments depicting different materials, including fabric, skin, wood and metal. Besides the original condition, we created three manipulations to understand the effect of colour (a greyscale version) and contrast (equalised histograms towards both painting and engraving). We performed rating experiments on five attributes: three-dimensionality, glossiness, convincingness, smoothness and softness. An average of 25 participants finished each of the 20 online experimental sessions (five attributes X four conditions). Besides clear correlations between the two media, the differences mainly show in their means (different levels of perceived attributes) and standard deviations (perceived range). In most sessions, paintings depict a wider range than engravings. In addition, it was the histogram equalisation (global contrast) that made the most impact on perceived attributes, rather than colour removal. This suggests that engravers compensated for the lack of colour by exploiting the possibilities of local contrast.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"15 4","pages":"20416695241261140"},"PeriodicalIF":2.4,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11297522/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141890406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0