I-PerceptionPub Date : 2025-07-25eCollection Date: 2025-07-01DOI: 10.1177/20416695251349685
Nicholas J Wade
{"title":"Textured surface stereoscopy.","authors":"Nicholas J Wade","doi":"10.1177/20416695251349685","DOIUrl":"10.1177/20416695251349685","url":null,"abstract":"<p><p>Julesz constructed stereograms in which surfaces in depth could be seen with two eyes but not with either eye alone. He noted that such enclosed surfaces in depth never occur in natural scenes. In contrast, extended stereoscopic surfaces are a natural feature of binocular vision. Examples of constructed textured surface stereograms are presented as anaglyphs. They satisfy the criterion of revealing depth seen with two eyes which is concealed from each eye alone. A wide range of carrier patterns can be employed to construct complex stereoscopic surfaces. Stereoscopic inclusions can be embedded within modulated surface depths in the same anaglyphs, and conventional stereoscopic images (photographs) can be incorporated within constructed stereograms. Textured surface stereograms offer the possibility of extending the artistic expression of stereoscopy.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251349685"},"PeriodicalIF":1.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12304618/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144745467","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}
I-PerceptionPub Date : 2025-07-24eCollection Date: 2025-07-01DOI: 10.1177/20416695251359216
Vebjørn Ekroll, Rob van Lier
{"title":"The three rules of mountaineering and amodal volume completion.","authors":"Vebjørn Ekroll, Rob van Lier","doi":"10.1177/20416695251359216","DOIUrl":"10.1177/20416695251359216","url":null,"abstract":"<p><p>When climbing a mountain, one is sometimes surprised at how the mountain turns out to be much taller than one initially believed. Wishful thinking easily comes to mind as an explanation for this, but we illustrate how this misjudgment may also be explained as a consequence of the perceptual experience of amodal volume completion.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251359216"},"PeriodicalIF":1.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12301588/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144733857","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}
I-PerceptionPub Date : 2025-07-22eCollection Date: 2025-07-01DOI: 10.1177/20416695251355381
Sabrina Hansmann-Roth, Pascal Mamassian
{"title":"Perceiving gloss through transparency.","authors":"Sabrina Hansmann-Roth, Pascal Mamassian","doi":"10.1177/20416695251355381","DOIUrl":"10.1177/20416695251355381","url":null,"abstract":"<p><p>The image intensity depends on the illumination, the reflectance properties of objects but also on the reflectance and absorption properties of any intervening media. In this study we present observers with glossy objects behind partially transmissive materials. The transparent layer causes an achromatic color shift and compression in luminance contrast, which can affect the perception of the specular reflections of the object behind the layer. In two distinct experiments, we examine how an achromatic color shift and the compression of luminance contrast affect perceived gloss. Thanks to the maximum likelihood conjoint measurement paradigm, we estimate the contamination of different transparent layers on perceived gloss. In the follow-up experiment, observers were asked to match the albedo and the gloss of surfaces seen in plain view to surfaces seen behind a transparent layer. Our results indicate a high degree of gloss constancy with some small but significant contribution of the transparent layer when estimating gloss, especially in the case of light-colored transparent layers. Overall, gloss is significantly overestimated.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251355381"},"PeriodicalIF":1.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12290337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144733856","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}
{"title":"Human color constancy in cast shadows.","authors":"Takuma Morimoto, Masayuki Sato, Shoji Sunaga, Keiji Uchikawa","doi":"10.1177/20416695251349737","DOIUrl":"10.1177/20416695251349737","url":null,"abstract":"<p><p>Illumination conditions inside and outside cast shadows typically differ significantly in both intensity and in chromaticity. However, our daily experiences suggest that we generally have no difficulty in stably perceiving surface color in cast shadows. In this study, two experiments were conducted to measure the extent to which color constancy holds within cast shadows. We constructed a scene with colored hexagons illuminated by two projectors simulating \"sunlight\" and \"skylight.\" Part of the scene included a cast shadow, illuminated only by the skylight, where a subjective white point was measured. We also created a condition in which a cast shadow was not perceived as a shadow. Results showed that color constancy generally holds well in shadows, and the color of skylight had varying effects depending on observers. Perceiving a cast shadow as a shadow had no effect. Overall, these findings are consistent with our daily experiences, in which we stably judge objects' color even within cast shadows.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251349737"},"PeriodicalIF":2.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12264327/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650878","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}
I-PerceptionPub Date : 2025-07-13eCollection Date: 2025-07-01DOI: 10.1177/20416695251350000
Joshua P Matthews, Debra L Mills, Ayelet Sapir
{"title":"Three-dimensional shape from shading is modulated by top-down attention: Evidence from event-related potentials.","authors":"Joshua P Matthews, Debra L Mills, Ayelet Sapir","doi":"10.1177/20416695251350000","DOIUrl":"10.1177/20416695251350000","url":null,"abstract":"<p><p>Shading is an important monocular cue for three-dimensional (3D) perception, whereby 3D shape can be inferred from shading patterns across an object, in a process termed <i>shape-from-shading</i>. Shape-from-shading has been characterised as a pre-attentive process that occurs in parallel across the visual field. Recent evidence, however, has challenged this notion, suggesting that it consists of an early pre-attentive process and a later stage of processing that is reliant on top-down attention. Here, we use event-related potentials (ERPs) to test this claim whilst participants were instructed either to ignore or to attend to shaded stimuli that could be perceived as two-dimensional (2D) and 3D. We found that 3D stimuli evoked a larger N1 component than 2D stimuli in both attended and unattended conditions, implying an early, pre-attentive processing stage in shape-from-shading. This activity was lateralised to the right hemisphere when participants attended to the stimuli, in accordance with the right hemisphere advantage in top-down attention. Further, when participants attended to the stimuli, a larger N2 component for 3D compared to 2D shape was found, suggesting a late, top-down process for identifying 3D shape. These findings provide evidence for two distinct stages of processing for shape-from-shading and suggest that attention is necessary for the perception of shape-from-shading.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251350000"},"PeriodicalIF":2.4,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12260317/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643855","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}
I-PerceptionPub Date : 2025-07-10eCollection Date: 2025-07-01DOI: 10.1177/20416695251356615
{"title":"Erratum to \"Sound effects have only minor contribution to perceptions of anthropomorphism and animacy of simple animated shapes\".","authors":"","doi":"10.1177/20416695251356615","DOIUrl":"https://doi.org/10.1177/20416695251356615","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1177/20416695251315382.].</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251356615"},"PeriodicalIF":2.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12254650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144627403","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}
I-PerceptionPub Date : 2025-07-09eCollection Date: 2025-07-01DOI: 10.1177/20416695251349735
Chiara Valzolgher, Elena Gessa, Elena Giovanelli, Francesco Pavani
{"title":"Someone else's ears: Metacognitive auditory perspective taking in young and older adults.","authors":"Chiara Valzolgher, Elena Gessa, Elena Giovanelli, Francesco Pavani","doi":"10.1177/20416695251349735","DOIUrl":"10.1177/20416695251349735","url":null,"abstract":"<p><p>Understanding others' listening experiences is an instance of social metacognition. We investigate attributed listening experiences to fictional others in two online experiments involving two groups, young and older adults with normal hearing. We assessed the similarity between the judgement they gave for themselves and for two fictional characters (same or different age), with respect to listening experiences and effort required across various listening scenarios. In Exp. 1, all characters were described as having normal hearing; in Exp. 2, we introduced one additional older character with hearing loss. In both experiments, younger adults judged the older characters as experiencing more effort, irrespective of hearing loss. Instead, older adults reported to experience less effort than older characters, irrespective of characters' hearing status and judged themselves closer to the young character. These findings show disparities in metacognitive auditory perspective taking in young and older adults, documenting a potential self-serving bias of older adults.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251349735"},"PeriodicalIF":2.4,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281472/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144691927","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}
I-PerceptionPub Date : 2025-07-03eCollection Date: 2025-07-01DOI: 10.1177/20416695251351412
Peeraya Sripian, Takashi Ijiri, Yasushi Yamaguchi
{"title":"Magnification effects on perspective angle and optical slant angle across locations.","authors":"Peeraya Sripian, Takashi Ijiri, Yasushi Yamaguchi","doi":"10.1177/20416695251351412","DOIUrl":"10.1177/20416695251351412","url":null,"abstract":"<p><p>This study investigates the phenomenon of magnification illusion, where the perception of perspective and optical slant angles changes when a scene is magnified. Our findings indicate that magnification influences these angles differently depending on location, which suggests that the illusion might be caused by changes in three-dimensional (3D) interpretation. Our findings reveal that the change of perspective angle interpretation primarily occurred when the stimuli were on the ground and sidewall but not those on the ceiling. Specifically, stimuli on the ceiling exhibit a significant underestimation of optical slant angles, while the perspective angle remains relatively stable. We developed a mathematical model based on the hypothesis of changes in 3D interpretation, which aligns well with our data. It was found that the interpretation of the perspective angle and the optical slant angle changes when a scene is magnified as indicated by the proposed relationship. This research provides the characteristics underlying spatial perception and its alteration under magnification and relative location, with potential applications in virtual reality and augmented reality system designs.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251351412"},"PeriodicalIF":2.4,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12227876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144576659","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}
I-PerceptionPub Date : 2025-07-02eCollection Date: 2025-07-01DOI: 10.1177/20416695251352067
Loes Cj van Dam, Svenja Kernig, Karina Lazarova, Melisa Ünal, Nicole Gappa, Benjamin Straube, Thomas Sa Wallis
{"title":"Delay adaptation does not transfer between discrete button press actions and continuous control.","authors":"Loes Cj van Dam, Svenja Kernig, Karina Lazarova, Melisa Ünal, Nicole Gappa, Benjamin Straube, Thomas Sa Wallis","doi":"10.1177/20416695251352067","DOIUrl":"10.1177/20416695251352067","url":null,"abstract":"<p><p>When interacting with technology, humans often deal with delays between an action and the desired action outcome. Through delay adaptation these delays will become less detrimental to visuomotor performance over time. Delay adaptation has been shown for a variety of tasks and control modes, from simple button presses causing a beep or flash to continuous target-tracking tasks. Here we investigated whether the delay adaptation is specific for the control mode used, when the task itself remained unaltered. To this end, participants performed a target tracking task in which they controlled a cursor item either by moving a stylus on a graphics tablet or by pressing the arrow keys on a keyboard. We found that delay adaptation occurred for both these types of control modes, but observed no transfer to the other control mode. This indicates that delay adaptation is specific to the control mode used during adaptation.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251352067"},"PeriodicalIF":2.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12235500/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144592651","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}
I-PerceptionPub Date : 2025-06-30eCollection Date: 2025-07-01DOI: 10.1177/20416695251338718
Riccardo Wanke, Alessandro Ansani, Nicola Di Stefano, Charles Spence
{"title":"Exploring auditory morphodynamics: Audiovisual associations in sound-based music.","authors":"Riccardo Wanke, Alessandro Ansani, Nicola Di Stefano, Charles Spence","doi":"10.1177/20416695251338718","DOIUrl":"10.1177/20416695251338718","url":null,"abstract":"<p><p>This article explores audiovisual associations within the context of contemporary and experimental music practices, particularly focusing on sound-based music. While extensive studies exist on crossmodality in relation to traditional music genres (such as classical instrumental music), the perceptual potential of sound-based music remains an underexplored field of psychological research. In an online procedure, 152 participants were exposed to six musical excerpts from spectralism and electronic-glitch music and were asked to rate the extent to which each audio matched with six ad hoc generated black and white abstract images. Statistical analysis revealed that ratings were highly consistent across participants, indicating that they may rely on a shared set of implicit perceptual criteria rooted in Gestalt and morphodynamic features common to both auditory and visual stimuli. In particular, smoothness, continuity, numericity, symmetry, and spectrotemporal dimensions emerged as the primary factors influencing the association ratings. We discuss the implication of these findings both for crossmodal research and musicology, and suggest some directions for future research in audiovisual associations using sound-based music.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":"16 4","pages":"20416695251338718"},"PeriodicalIF":2.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12209565/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555319","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}