I-PerceptionPub Date : 2023-11-14eCollection Date: 2023-11-01DOI: 10.1177/20416695231205365
Gregor U Hayn-Leichsenring, Dana G Rottleb
{"title":"Cupid stealing visual attention - the restoration of Vermeer's \"Girl Reading a Letter at an Open Window\" altered viewing behavior.","authors":"Gregor U Hayn-Leichsenring, Dana G Rottleb","doi":"10.1177/20416695231205365","DOIUrl":"https://doi.org/10.1177/20416695231205365","url":null,"abstract":"<p><p>A major restoration of Vermeer's \"Girl Reading a Letter at an Open Window\" revealed a painting of cupid on the back wall that had been overpainted. The uncovering of this painting within a painting changed the composition of the artwork. We performed an eye tracking study on digital representations of the painting to investigate how the restoration altered the way people perceive this artwork. We show that the painting of cupid draws visual attention from the letter and that viewing behavior depends on knowledge of the other version of the painting. Moreover, lay people prefer the version without cupid.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652807/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138463556","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 : 2023-11-14eCollection Date: 2023-11-01DOI: 10.1177/20416695231213213
Sarah Koch, Torsten Schubert, Sven Blankenberger
{"title":"The spatial representation of loudness in a timbre discrimination task.","authors":"Sarah Koch, Torsten Schubert, Sven Blankenberger","doi":"10.1177/20416695231213213","DOIUrl":"https://doi.org/10.1177/20416695231213213","url":null,"abstract":"<p><p>When participants decide whether a presented tone is loud or soft they react faster to loud tones with a top-sided response key in comparison to a bottom-sided response key and vice versa for soft tones. This effect is comparable to the well-established horizontal Spatial-Numerical Association of Response Codes (SNARC) effect and is often referred to as Spatial-Musical Association of Response Codes (SMARC) effect for loudness. The SMARC effect for loudness is typically explained by the assumption of a spatial representation or by the polarity correspondence principle. Crucially, both theories differ in the prediction of the SMARC effect when loudness is task-irrelevant. Therefore, we investigated whether the SMARC effect still occurs in a timbre discrimination task: Participants (<i>N</i> = 36) heard a single tone and classified its timbre with vertically arranged response keys. Additionally, the tone's loudness level varied in six levels. In case of a spatial representation, the SMARC effect should still occur while in case of polarity corresponding principle, the effect should be absent. Results showed that the SMARC effect was still present and that the differences between top-sided and bottom-sided responses were a linear function of loudness level indicating a continuous spatial representation of loudness.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652803/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138463561","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":"Temporal visuomotor synchrony induces embodiment towards an avatar with biomechanically impossible arm movements.","authors":"Harin Hapuarachchi, Hiroki Ishimoto, Michiteru Kitazaki, Maki Sugimoto, Masahiko Inami","doi":"10.1177/20416695231211699","DOIUrl":"https://doi.org/10.1177/20416695231211699","url":null,"abstract":"Visuomotor synchrony in time and space induces a sense of embodiment towards virtual bodies experienced in first-person view using Virtual Reality (VR). Here, we investigated whether temporal visuomotor synchrony affects avatar embodiment even when the movements of the virtual arms are spatially altered from those of the user in a non-human-like manner. In a within-subjects design VR experiment, participants performed a reaching task controlling an avatar whose lower arms bent in inversed and biomechanically impossible directions from the elbow joints. They performed the reaching task using this “unnatural avatar” as well as a “natural avatar,” whose arm movements and positions spatially matched the user. The reaching tasks were performed with and without a one second delay between the real and virtual movements. While the senses of body ownership and agency towards the unnatural avatar were significantly lower compared to those towards the natural avatar, temporal visuomotor synchrony did significantly increase the sense of embodiment towards the unnatural avatar as well as the natural avatar. These results suggest that temporal visuomotor synchrony is crucial for inducing embodiment even when the spatial match between the real and virtual limbs is disrupted with movements outside the pre-existing cognitive representations of the human body.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10631331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134650217","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 : 2023-11-01DOI: 10.1177/20416695231214439
Michael Falconbridge, Robert L. Stamps, Mark Edwards, David R. Badcock
{"title":"Target motion misjudgments reflect a misperception of the background; revealed using continuous psychophysics","authors":"Michael Falconbridge, Robert L. Stamps, Mark Edwards, David R. Badcock","doi":"10.1177/20416695231214439","DOIUrl":"https://doi.org/10.1177/20416695231214439","url":null,"abstract":"Determining the velocities of target objects as we navigate complex environments is made more difficult by the fact that our own motion adds systematic motion signals to the visual scene. The flow-parsing hypothesis asserts that the background motion is subtracted from visual scenes in such cases as a way for the visual system to determine target motions relative to the scene. Here, we address the question of why backgrounds are only partially subtracted in lab settings. At the same time, we probe a much-neglected aspect of scene perception in flow-parsing studies, that is, the perception of the background itself. Here, we present results from three experienced psychophysical participants and one inexperienced participant who took part in three continuous psychophysics experiments. We show that, when the background optic flow pattern is composed of local elements whose motions are congruent with the global optic flow pattern, the incompleteness of the background subtraction can be entirely accounted for by a misperception of the background. When the local velocities comprising the background are randomly dispersed around the average global velocity, an additional factor is needed to explain the subtraction incompleteness. We show that a model where background perception is a result of the brain attempting to infer scene motion due to self-motion can account for these results.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139305436","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}
I-PerceptionPub Date : 2023-11-01DOI: 10.1177/20416695231215604
Isabelle Bülthoff, M. Breidt, H. Bülthoff, Daniel Kersten
{"title":"General lighting can overcome accidental viewing","authors":"Isabelle Bülthoff, M. Breidt, H. Bülthoff, Daniel Kersten","doi":"10.1177/20416695231215604","DOIUrl":"https://doi.org/10.1177/20416695231215604","url":null,"abstract":"When seeing an object in a scene, the presumption of seeing that object from a general viewpoint (as opposed to an accidental viewpoint) is a useful heuristic to decide which of many interpretations of this object is correct. Similar heuristic assumptions on illumination quality might also be used for scene interpretation. Here we tested that assumption and asked if illumination information helps determine object properties when seen from an accidental viewpoint. Test objects were placed on a flat surface and illumination was varied while keeping the objects’ images constant. Observers judged the shape or rigidity of static or moving simple objects presented in accidental view. They also chose which of two seemingly very similar faces was familiar. We found: (1) Objects might appear flat without shadow information but were perceived to be volumetric objects or non-planar in the presence of cast shadows. (2) Apparently non-rigid objects became rigid with shadow information. (3) Shading and shadows helped to infer which of two face was the familiar one. Previous results had shown that cast shadows help determine spatial layout of objects. Our study shows that other properties of objects like rigidity or 3D-shape can be disambiguated by shadow information.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139305832","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}
I-PerceptionPub Date : 2023-11-01DOI: 10.1177/20416695231214440
Michael Falconbridge, Robert L. Stamps, Mark Edwards, David R. Badcock
{"title":"Continuous psychophysics for two-variable experiments; A new “Bayesian participant” approach","authors":"Michael Falconbridge, Robert L. Stamps, Mark Edwards, David R. Badcock","doi":"10.1177/20416695231214440","DOIUrl":"https://doi.org/10.1177/20416695231214440","url":null,"abstract":"Interest in continuous psychophysical approaches as a means of collecting data quickly under natural conditions is growing. Such approaches require stimuli to be changed randomly on a continuous basis so that participants can not guess future stimulus states. Participants are generally tasked with responding continuously using a continuum of response options. These features introduce variability in the data that is not present in traditional trial-based experiments. Given the unique weaknesses and strengths of continuous psychophysical approaches, we propose that they are well suited to quickly mapping out relationships between above-threshold stimulus variables such as the perceived direction of a moving target as a function of the direction of the background against which the target is moving. We show that modelling the participant in such a two-variable experiment using a novel “Bayesian Participant” model facilitates the conversion of the noisy continuous data into a less-noisy form that resembles data from an equivalent trial-based experiment. We also show that adaptation can result from longer-than-usual stimulus exposure times during continuous experiments, even to features that the participant is not aware of. Methods for mitigating the effects of adaptation are discussed.","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139292302","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}
{"title":"Age-related differences in temporal binding and the influence of action body parts.","authors":"Yoshitaka Fujii, Naoki Kuroda, Ryo Teraoka, Shinya Harada, Wataru Teramoto","doi":"10.1177/20416695231208547","DOIUrl":"https://doi.org/10.1177/20416695231208547","url":null,"abstract":"<p><p>If voluntary action is followed by an effect with a short time delay, the time interval between action and effect is often perceived to be shorter than it actually is. This perceptual time compression is termed intentional binding or temporal binding. We investigated age-related changes in adulthood considering temporal binding and its dependence on action body parts (i.e., hand vs. foot). This experiment included 17 young adults (mean age: 21.71 ± 3.14 years) and 27 older adults (mean age: 74.41 ± 3.38 years). Participants performed a button press task using their index fingers (hand condition) or toes (foot condition). The results showed that older participants exhibited a strong time compression comparable to young participants in the voluntary condition. Older participants also showed a strong time compression in involuntary action, which was induced by a mechanical device, differently from young participants. In line with previous research, the present age-related differences in time compression considering involuntary action suggest that causal belief significantly influences event perception rather than the associated intention of action or sensory afferents. The present results also suggest that the nature of action body parts has no significant influence on temporal binding, independent of age group.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10617286/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71427760","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 : 2023-09-27eCollection Date: 2023-09-01DOI: 10.1177/20416695231198762
Makaela Nartker, Chaz Firestone, Howard Egeth, Ian Phillips
{"title":"Six ways of failing to see (and why the differences matter).","authors":"Makaela Nartker, Chaz Firestone, Howard Egeth, Ian Phillips","doi":"10.1177/20416695231198762","DOIUrl":"https://doi.org/10.1177/20416695231198762","url":null,"abstract":"<p><p>Sometimes we look but fail to see: our car keys on a cluttered desk, a repeated word in a carefully proofread email, or a motorcycle at an intersection. Wolfe and colleagues present a unifying, mechanistic framework for understanding these \"Looked But Failed to See\" errors, explaining how such misses arise from natural constraints on human visual processing. Here, we offer a conceptual taxonomy of six distinct ways we might be said to fail to see, and explore: how these relate to processes in Wolfe et al.'s model; how they can be distinguished experimentally; and, why the differences matter.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536858/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41162912","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 : 2023-09-24eCollection Date: 2023-09-01DOI: 10.1177/20416695231201463
Coskun Joe Dizmen, Richard H Y So
{"title":"Vection induced by a pair of patches of synchronized visual motion stimuli covering total field of views as small as 10 square-degrees.","authors":"Coskun Joe Dizmen, Richard H Y So","doi":"10.1177/20416695231201463","DOIUrl":"https://doi.org/10.1177/20416695231201463","url":null,"abstract":"<p><p>Vection (illusion of self-motion) is known to be induced by watching large field-of-view (FOV) moving scenes. In our study, we investigated vection induced by small FOV stimuli. Three experiments were conducted in 45 sessions to analyze vection provoked by moving scenes covering total FOVs as small as 10 square-degrees. Results indicated that 88% of the participants reported vection while watching two small patches of moving dots (1° horizontal by 5° vertical, each) placed on the left and right sides of the observers. This is less than a quarter of the total visual area of two Apple Watches viewed at a distance of 40 cm. Occlusion of the visual field between the two display patches significantly increased the levels of rated vection. Similarly, increasing the speed of the moving dots of the two display patches from about 5 to 25 °/sec increased the levels of rated vection significantly. The location of the two patches in the horizontal visual field did not affect the vection perception significantly. When the two straight stripes of dots were moving in opposite directions, participants perceived circular vection. The observers connected the two stimuli in their minds and perceived them as parts of a single occluded background. The findings of this study are relevant to the design of mobile devices (e.g., smartphones) and wearable technology (e.g., smart watches) with small display areas.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10521291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41171292","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":"Naturalistic face adaptation: How we adapt to freckles fast and sustainably.","authors":"Sandra Utz, Ronja Mueller, Tilo Strobach, Claus-Christian Carbon","doi":"10.1177/20416695231195262","DOIUrl":"10.1177/20416695231195262","url":null,"abstract":"<p><p>While sunbathing, our skin becomes susceptible to quite remarkable changes in visual appearance, that is, freckles appear or increase in intensity-most obviously on the face. Research on face adaptation repeatedly showed that the inspection of manipulated versions of faces (so-called adaptor faces) leads to robust and sustainable changes in the perception of subsequently presented faces. Therefore, during the adaptation phase of the present study, participants saw faces with either strongly increased or decreased intensities of freckles. After a 5-minute break, during the test phase, participants had to identify the veridical (non-manipulated) face out of two faces (a slightly manipulated face combined with a non-manipulated face). Results showed strong adaptation effects to increased and decreased levels of freckles. We conclude that updating facial representations in memory is relatively fast, and these representation updates seem to sustain over a certain time span (at least 5 minutes). Face-specificity of our effects will be discussed. The results align with our everyday experience that the appearance of freckles in spring is a salient change in a familiar face; however, we seem to not register these changes after a few exposures due to a loss of information quality.</p>","PeriodicalId":47194,"journal":{"name":"I-Perception","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10505343/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10309491","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}