-
A Search Advantage for Horizontal Targets in Dynamic Displays i-Perception (IF 1.535) Pub Date : 2021-04-13 Ian M. Thornton, Quoc C. Vuong, Karin S. Pilz
Several lines of evidence point to the existence of a visual processing advantage for horizontal over vertical orientations. We investigated whether such a horizontal advantage exists in the context of top-down visual search. Inspired by change detection studies, we created displays where a dynamic target -- a horizontal or a vertical group of five dots that changed contrast synchronously -- was embedded
-
Möbius Band Surprise: A Systematic Illusion in Imagery i-Perception (IF 1.535) Pub Date : 2021-04-09 Mons Daniel Haugland, David G. Pearson, Vebjørn Ekroll
When a Möbius loop is cut along the middle of the band, the result is a single connected loop, yet anecdotal evidence from science demonstrations and the use of this effect in magic tricks suggest that most people are thoroughly surprised by this because they strongly believe that the result should be two separate loops. Here, we present results from a behavioral experiment confirming this anecdotal
-
Smells Influence Perceived Pleasantness but Not Memorization of a Visual Virtual Environment i-Perception (IF 1.535) Pub Date : 2021-03-30 Agnieszka Sabiniewicz, Elena Schaefer, Guducu Cagdas, Cedric Manesse, Moustafa Bensafi, Nadejda Krasteva, Gabriele Nelles, Thomas Hummel
The present study aimed to investigate whether the perception of still scenes in a virtual environment in congruent versus incongruent condition can be influenced by odors. Ninety healthy participants were divided into three groups, including two experimental virtual reality (VR) environments: a rose garden, an orange basket, and a control condition. In each VR condition, participants were exposed
-
Motion Direction Discrimination with Tactile Random-Dot Kinematograms i-Perception (IF 1.535) Pub Date : 2021-03-28 Scinob Kuroki, Shin’ya Nishida
Motion detection is a fundamental sensory function for multiple modalities, including touch, but the mechanisms underlying tactile motion detection are not well understood. While previous findings supported the existence of high-level feature tracking, it remains unclear whether there also exist low-level motion sensing that directly detects a local spatio-temporal correlation in the skin-stimulation
-
Information Is Where You Find It: Perception as an Ecologically Well-Posed Problem i-Perception (IF 1.535) Pub Date : 2021-03-22 William H. Warren
Texts on visual perception typically begin with the following premise: Vision is an ill-posed problem, and perception is underdetermined by the available information. If this were really the case, however, it is hard to see how vision could ever get off the ground. James Gibson’s signal contribution was his hypothesis that for every perceivable property of the environment, however subtle, there must
-
Spatial Induction in Color Scission i-Perception (IF 1.535) Pub Date : 2021-03-12 Zhehao Huang, Qasim Zaidi
An exception to the rule that only one color is seen at every retinotopic location happens when a bounded colored transparency or spotlight is seen on a differently colored surface. Despite the spectrum of the light from each retinotopic location being an inextricable multiplication of illumination, transmission, and reflectance spectra, we seem to be able to scission the information into background
-
Gaze Parameters in the Analysis of Ambiguous Geometric Shapes i-Perception (IF 1.535) Pub Date : 2021-03-12 Linda Krauze, Ilze Ceple, Jurgis Skilters, Mara Delesa–Velina, Baingio Pinna, Gunta Krumina
This study explores perceptual organisation and shape perception when viewing a tetragon and an additional element (a dot) that is located at varying positions and distances next to the tetragon. The aim of the study is to determine the factors that can alter the interpretation of object configuration and impact whether the presented tetragon is perceived as a diamond or a square. Methods used in this
-
Unmasking the Difficulty of Listening to Talkers With Masks: lessons from the COVID-19 pandemic i-Perception (IF 1.535) Pub Date : 2021-03-10 Elena Giovanelli, Chiara Valzolgher, Elena Gessa, Michela Todeschini, Francesco Pavani
Interactions with talkers wearing face masks have become part of our daily routine since the beginning of the COVID-19 pandemic. Using an on-line experiment resembling a video conference, we examined the impact of face masks on speech comprehension. Typical-hearing listeners performed a speech-in-noise task while seeing talkers with visible lips, talkers wearing a surgical mask, or just the name of
-
Asymmetric Brightness Effects With Dark Versus Light Glare-Like Stimuli i-Perception (IF 1.535) Pub Date : 2021-02-25 Yuki Kobayashi, Daniele Zavagno, Kazunori Morikawa
The glare effect is a brightness illusion that has captured the attention of the vision community since its discovery. However, its photometrical reversal, which we refer to here as photometrical reversed glare (PRG) stimuli, remained relatively unexplored. We presented three experiments that sought to examine the perceived brightness of a target area surrounded by luminance gradients in PRG stimuli
-
On the Origins of Terms in Binocular Vision i-Perception (IF 1.535) Pub Date : 2021-02-24 Nicholas J. Wade
Vision with two eyes has been commented upon for many centuries, and the principal concern has been with binocular single vision. The terminology we apply to binocular vision developed rapidly after the invention of the stereoscope in the early 19th century. The origins of terms such as anaglyph, binocular lustre, chromatic stereoscope, cyclopean eye, dichoptic, horopter, pseudoscope, rivalry, stereoscope
-
Walking on Visual Illusions i-Perception (IF 1.535) Pub Date : 2021-02-20 Greig Dickson, Daria Burtan, Shelley James, David Phillips, Jasmina Stevanov, Priscilla Heard, Ute Leonards
In nature, sensory and physical characteristics of the environment tend to match; for example, a surface that looks bumpy is bumpy. In human-built environments, they often don’t. Here, we report observations from people exploring if mismatch between visual and physical characteristics affected their perceived walking experience. Participants walked across four flat floors, each comprising of a visual
-
The Effects of Smartphone Spectatorship on Attention, Arousal, Engagement, and Comprehension i-Perception (IF 1.535) Pub Date : 2021-02-20 Kata Szita, Brendan Rooney
The popularity of watching movies and videos on handheld devices is rising, yet little attention has been paid to its impact on viewer behaviour. Smartphone spectatorship is characterized by the small handheld screen as well as the viewing environment where various unrelated stimuli can occur, providing possible distractions from viewing. Previous research suggests that screen size, handheld control
-
Clever Cats: Do They Utilize Change Blindness as a Covered Approaching Strategy? i-Perception (IF 1.535) Pub Date : 2021-02-20 Alexander Pastukhov, Claus-Christian Carbon
Sometimes, we do not notice big changes in our environment, if these changes occur while we perform eye movements or external events interrupt our perception. This striking phenomenon is known as “change blindness.” Research on chimpanzees, macaques, and pigeons suggests that change blindness may not be unique to humans, but our understanding is limited by the difficulty of carrying out change blindness
-
Narrowing of the Audiovisual Temporal Binding Window Due To Perceptual Training Is Specific to High Visual Intensity Stimuli i-Perception (IF 1.535) Pub Date : 2021-02-17 Ryan P. Horsfall, Sophie M. Wuerger, Georg F. Meyer
The temporal binding window (TBW), which reflects the range of temporal offsets in which audiovisual stimuli are combined to form a singular percept, can be reduced through training. Our research aimed to investigate whether training-induced reductions in TBW size transfer across stimulus intensities. A total of 32 observers performed simultaneity judgements at two visual intensities with a fixed auditory
-
A Comparison of Eye Tracking Latencies Among Several Commercial Head-Mounted Displays i-Perception (IF 1.535) Pub Date : 2021-02-11 Niklas Stein, Diederick C. Niehorster, Tamara Watson, Frank Steinicke, Katharina Rifai, Siegfried Wahl, Markus Lappe
A number of virtual reality head-mounted displays (HMDs) with integrated eye trackers have recently become commercially available. If their eye tracking latency is low and reliable enough for gaze-contingent rendering, this may open up many interesting opportunities for researchers. We measured eye tracking latencies for the Fove-0, the Varjo VR-1, and the High Tech Computer Corporation (HTC) Vive
-
Scent in the Context of Live Performance i-Perception (IF 1.535) Pub Date : 2021-02-03 Charles Spence
Ambient smell has long been a feature of live performance, no matter whether its presence was intentional or not. While, once upon a time, the incidental presence of malodour was an inevitable feature of proceedings, the deliberate use of scent can actually be traced all the way back to the earliest rituals. This review attempts to trace the long history of scent’s use in processions, pageants, and
-
Optic Flow: Perceiving and Acting in a 3-D World i-Perception (IF 1.535) Pub Date : 2021-02-03 Brian Rogers
In 1979, James Gibson completed his third and final book “The Ecological Approach to Visual Perception”. That book can be seen as the synthesis of the many radical ideas he proposed over the previous 30 years – the concept of information and its sufficiency, the necessary link between perception and action, the need to see perception in relation to an animal's particular ecological niche and the meanings
-
No Evidence That Hormonal Contraceptives Affect Chemosensory Perception i-Perception (IF 1.535) Pub Date : 2021-02-01 Martin Schaefer, Behzad Iravani, Artin Arshamian, Johan N. Lundström
The use of oral contraceptives (OC) in the form of a hormonal pill has been widespread for decades. Despite its popularity and long-time use, there is still much ambiguity and anecdotal reports about a range of potential side effects. Here, we addressed the potential effect of OC use on chemosensory perception. Previous research has almost exclusively focused on olfaction, but we expanded this to the
-
A Cube Version of the Square–Diamond Illusion i-Perception (IF 1.535) Pub Date : 2021-01-20 Hiroyuki Ito, Daichi Nose
The square–diamond illusion is often referred to as a type of size illusion. However, the 45-degree tilting of a square remarkably affects perceived corner angles when a cube version of the figure is used. This illusion is measured and discussed in relation to anisotropy in shape interpretation.
-
Estimating Bar Graph Averages: Overcoming Within-the-Bar Bias i-Perception (IF 1.535) Pub Date : 2021-01-20 Hyunmin Kang, Jeayeong Ji, Yeji Yun, Kwanghee Han
Although most people are not aware of it, bias can occur when interpreting graphs. Within-the-bar bias describes a misinterpretation of the distribution of data underlying bar graphs that indicate an average or where the average estimation point moves inside the bar when the average of several graphs is estimated. This study proposes and tests two methods based on information processing to reduce within-the-bar
-
Semantic Congruency Modulates the Effect of Attentional Load on the Audiovisual Integration of Animate Images and Sounds i-Perception (IF 1.535) Pub Date : 2020-12-31 Qingqing Li, Qiong Wu, Yiyang Yu, Fengxia Wu, Satoshi Takahashi, Yoshimichi Ejima, Jiajia Yang, Jinglong Wu
Attentional processes play a complex and multifaceted role in the integration of input from different sensory modalities. However, whether increased attentional load disrupts the audiovisual (AV) integration of common objects that involve semantic content remains unclear. Furthermore, knowledge regarding how semantic congruency interacts with attentional load to influence the AV integration of common
-
Speed Overestimation of the Moving Away Object in the Intentional Reaction Causal Effect i-Perception (IF 1.535) Pub Date : 2020-12-26 Giulia Parovel, Stefano Guidi
We describe a new illusory speed effect arising in visual events developed by Michotte (1946/1963) in studies of causal perception and, more specifically, within the so-called intentional reaction effect: When an Object B is seen intentionally escaping from another Object A, its perceived speed is overestimated. In Experiment 1, we used two-alternative forced choice comparisons to estimate perceived
-
Unresolvable Pixels Contribute to Character Legibility: Another Reason Why High-Resolution Images Appear Clearer i-Perception (IF 1.535) Pub Date : 2020-12-26 Madoka Ohnishi, Koichi Oda
This study examined the effect of character sample density on legibility. As the spatial frequency component important for character recognition is said to be 1 to 3 cycles/letter (cpl), six dots in each direction should be sufficient to represent a character; however, some studies have reported that high-density characters are more legible. Considering that these seemingly contradictory findings could
-
The Effect of Material Properties on the Perceived Shape of Three-Dimensional Objects i-Perception (IF 1.535) Pub Date : 2020-12-26 Masakazu Ohara, Juno Kim, Kowa Koida
Perceiving the shape of three-dimensional objects is essential for interacting with them in daily life. If objects are constructed from different materials, can the human visual system accurately estimate their three-dimensional shape? We varied the thickness, motion, opacity, and specularity of globally convex objects rendered in a photorealistic environment. These objects were presented under either
-
Perceived Duration Depends Upon Target Detection in Rapid Serial Visual Presentation Sequence i-Perception (IF 1.535) Pub Date : 2020-12-25 Makoto Ichikawa, Masataka Miyoshi
It is well known that the perceived duration for a given time period decreases with the reduction of the number of perceived events. We examined whether target detection failures in viewing Rapid Serial Visual Presentation (RSVP) sequence, caused by attentional blink, affect this reduction of perceived duration. In two experiments, trials consisted of displays of two series of RSVP sequences; in the
-
Lightness in a Flash: Effect of Exposure Time on Lightness Perception i-Perception (IF 1.535) Pub Date : 2020-12-25 Sae Kaneko, Alan Gilchrist
A gray target can appear lighter or darker depending on its surrounding spatial context. We examined the effect of exposure time on three such examples (simultaneous lightness contrast, dungeon illusion, and the two-room arrangement), finding very different results with exposure time as brief as 15 ms: the simultaneous lightness contrast was much stronger, the effect of the dungeon illusion was reversed
-
Analyzing Response Times and Other Types of Time-to-Event Data Using Event History Analysis: A Tool for Mental Chronometry and Cognitive Psychophysiology i-Perception (IF 1.535) Pub Date : 2020-12-23 Sven Panis, Filipp Schmidt, Maximilian P. Wolkersdorfer, Thomas Schmidt
In this Methods article, we discuss and illustrate a unifying, principled way to analyze response time data from psychological experiments—and all other types of time-to-event data. We advocate the general application of discrete-time event history analysis (EHA) which is a well-established, intuitive longitudinal approach to statistically describe and model the shape of time-to-event distributions
-
A Geometrical Account to Explain the Fat-Face Illusion i-Perception (IF 1.535) Pub Date : 2020-12-22 Amit Rawal, Philip Tseng
Investigations of the “fat-face” illusion have unanimously agreed that the illusion is face-specific. Here, we offer several manipulations to highlight that the fat-face illusion is not restricted to the bottom image, isn’t a property of internal features, facial contour/texture, and in general isn’t even specific to faces. We propose the axis of horizontal asymmetry account to contextualize fat-face
-
Auditory Rate Perception Displays a Positive Serial Dependence i-Perception (IF 1.535) Pub Date : 2020-12-22 Aysha Motala, Huihui Zhang, David Alais
We investigated perceived timing in auditory rate perception using a reproduction task. The study aimed to test (a) whether central tendency occurs in rate perception, as shown for interval timing, and (b) whether rate is perceived independently on each trial or shows a serial dependence, as shown for other perceptual attributes. Participants were well able to indicate perceived rate as reproduced
-
Chemical Intolerance Is Associated With Altered Response Bias, not Greater Sensory Sensitivity i-Perception (IF 1.535) Pub Date : 2020-12-20 Linus Andersson, Petra Sandberg, Elisabeth Åström, Moa Lillqvist, Anna-Sara Claeson
Chemical intolerance is a surprisingly prevalent condition or affliction characterized by adverse reactions to low levels of chemical, often odorous stimulation. Sufferers often assume that their plight is due to an uncommon sensory acuteness, yet studies repeatedly fail to reveal altered detection thresholds. Here, we investigated whether self-reported chemical intolerance is associated with altered
-
Stimulus Specific to Age-Related Audio-Visual Integration in Discrimination Tasks i-Perception (IF 1.535) Pub Date : 2020-12-13 Yanna Ren, Zhihan Xu, Sa Lu, Tao Wang, Weiping Yang
Age-related audio-visual integration (AVI) has been investigated extensively; however, AVI ability is either enhanced or reduced with ageing, and this matter is still controversial because of the lack of systematic investigations. To remove possible variates, 26 older adults and 26 younger adults were recruited to conduct meaningless and semantic audio-visual discrimination tasks to assess the ageing
-
Multiple Irrelevant Duration Information Affects the Perception of Relevant Duration Information: Interference With Selective Processing of Duration i-Perception (IF 1.535) Pub Date : 2020-11-26 Hitomi Kawahara, Yuko Yotsumoto
In the human visual environment, the ability to perceive only relevant duration is important for various activities. However, a relatively small number of studies have investigated how humans process multiple durations, in comparison with the processing of one or two durations. We investigated the effects of multiple irrelevant durations on the perception of relevant duration. In four behavioral experiments
-
How We Perceive Others Resembling Us i-Perception (IF 1.535) Pub Date : 2020-11-25 Alexandra Hoffmann, Thomas Maran, Pierre Sachse
Eye contact is essential for social cognition, acting as an important tool for social communication. While differences in face scanning patterns concerning familiarity have been thoroughly investigated, the impact of facial similarity on gaze behavior has not been examined yet. We addressed this topic by recording subjects’ eye-directed gazing while looking at faces that were individually created systematically
-
Scent and the Cinema i-Perception (IF 1.535) Pub Date : 2020-11-25 Charles Spence
From the very earliest days of public cinema (moving pictures), there has been consideration about how odors and scents might influence the viewer’s experience. While initially this was primarily a concern with how to eliminate the malodor of the cinema-goers themselves, in more recent times, there have been a number of well-publicized attempts to add synchronized pleasant (and, on occasion, also unpleasant)
-
Scenting the Anosmic Cube: On the Use of Ambient Scent in the Context of the Art Gallery or Museum i-Perception (IF 1.535) Pub Date : 2020-11-20 Charles Spence
In recent years, there has been growing interest in the possibility of augmenting the visitor’s experience of the exhibits in various art galleries and museums by means of the delivery of a genuinely multisensory experience, one that engages more than just the visual sense. This kind of approach both holds the promise of increasing engagement while, at the same time, also helping to address, in some
-
Is Absolute Pitch Associated With Musical Tension Processing? i-Perception (IF 1.535) Pub Date : 2020-11-18 Jun Jiang*, Tang Hai, Dongrui Man, Linshu Zhou
Absolute pitch (AP) is a superior ability to identify or produce musical tones without a reference tone. Although a few studies have investigated the relationship between AP and high-level music processing such as tonality and syntactic processing, very little is known about whether AP is related to musical tension processing. To address this issue, 20 AP possessors and 20 matched non-AP possessors
-
Perception of a Black Room Seen Through a Veiling Luminance i-Perception (IF 1.535) Pub Date : 2020-11-18 Alan Gilchrist, Michael S. Langer
When a black room (a room painted black and filled with objects painted black) is viewed through a veiling luminance, how does it appear? Prior work on black rooms and white rooms suggests the room will appear white because mutual illumination in the high-reflectance white room lowers image contrast, and the veil also lowers image contrast. Other work reporting high lightness constancy for three-dimensional
-
Colors and Things i-Perception (IF 1.535) Pub Date : 2020-11-05 Jan Koenderink, Andrea van Doorn, Karl Gegenfurtner
How many colors are there? Quoted numbers range from ten million to a dozen. Are colors object properties? Opinions range all the way from of course they are to no, colors are just mental paint. These questions are ill-posed. We submit that the way to tackle such questions is to adopt a biological approach, based on the evolutionary past of hominins. Hunter-gatherers in tundra or savannah environments
-
Rapid Temporal Recalibration to Audiovisual Asynchrony Occurs Across the Difference in Neural Processing Speed Based on Spatial Frequency i-Perception (IF 1.535) Pub Date : 2020-10-30 Yasuhiro Takeshima
Audiovisual integration relies on temporal synchrony between visual and auditory stimuli. The brain rapidly adapts to audiovisual asynchronous events by shifting the timing of subjective synchrony in the direction of the leading modality of the most recent event, a process called rapid temporal recalibration. This phenomenon is the flexible function of audiovisual synchrony perception. Previous studies
-
The Rotating Snakes Illusion Is a Straightforward Consequence of Nonlinearity in Arrays of Standard Motion Detectors i-Perception (IF 1.535) Pub Date : 2020-10-22 Michael Bach, Lea Atala-Gérard
The Rotating Snakes illusion is a motion illusion based on repeating, asymmetric luminance patterns. Recently, we found certain gray-value conditions where a weak illusory motion occurs in the opposite direction. Of the four models for explaining the illusion, one also explains the unexpected perceived opposite direction.We here present a simple new model, without free parameters, based on an array
-
Collinear Motion Strengthens Local Context in Visual Detection i-Perception (IF 1.535) Pub Date : 2020-10-21 Massimo Girelli
Detection of elongated objects in the visual scene can be improved by additional elements flanking the object on the collinear axis. This is the collinear context effect (CE) and is represented in the long-range horizontal connection plexus in V1. The aim of this study was to test whether the visual collinear motion can improve the CE. In the three experiments of this study, the flank was presented
-
Spatial Heterogeneity in Bistable Figure-Ground Perception i-Perception (IF 1.535) Pub Date : 2020-10-20 Nonie J. Finlayson, Victorita Neacsu, D. S. Schwarzkopf
The appearance of visual objects varies substantially across the visual field. Could such spatial heterogeneity be due to undersampling of the visual field by neurons selective for stimulus categories? Here, we show that which parts of a bistable vase-face image observers perceive as figure and ground depends on the retinal location where the image appears. The spatial patterns of these perceptual
-
Body Language Influences on Facial Identification at Passport Control: An Exploration in Virtual Reality i-Perception (IF 1.535) Pub Date : 2020-10-18 Hannah M. Tummon, John Allen, Markus Bindemann
Person identification at airports requires the matching of a passport photograph to its bearer. One aim of this process is to find identity impostors, who use valid identity documents of similar-looking people to avoid detection. In psychology, this process has been studied extensively with static pairs of face photographs that require identity match (same person shown) versus mismatch (two different
-
Visual Search Within a Limited Window Area: Scrolling Versus Moving Window i-Perception (IF 1.535) Pub Date : 2020-10-18 Yumiko Fujii, Hiromi Morita
Every day we perceive pictures on our mobile phones and scroll through images within a limited space. At present, however, visual perception via image scrolling is not well understood. This study investigated the nature of visual perception within a small window frame. It compared visual search efficiency using three modes: scrolling, moving-window, and free-viewing. The item number and stimulus size
-
Searching Through Alternating Sequences: Working Memory and Inhibitory Tagging Mechanisms Revealed Using the MILO Task i-Perception (IF 1.535) Pub Date : 2020-10-15 Ian M. Thornton, Todd S. Horowitz
We used the Multi-Item Localisation (MILO) task to examine search through two sequences. In Sequential blocks of trials, six letters and six digits were touched in order. In Mixed blocks, participants alternated between letters and digits. These conditions mimic the A and B variants of the Trail Making Test (TMT). In both block types, targets either vanished or remained visible after being touched
-
Differences in Three Vection Indices (Latency, Duration, and Magnitude) Induced by “Camera-Moving” and “Object-Moving” in a Virtual Computer Graphics World, Despite Similarity in the Retinal Images i-Perception (IF 1.535) Pub Date : 2020-10-15 Hirotaro Sato, Yuki Morimoto, Gerard B. Remijn, Takeharu Seno
To create a self-motion (vection) situation in three-dimensional computer graphics (CG), there are mainly two ways: moving a camera toward an object (“camera moving”) or by moving the object and its surrounding environment toward the camera (“object moving”). As both methods vary considerably in the amount of computer calculations involved in generating CG, knowing how each method affects self-motion
-
Spontaneous Ocular Scanning of Visual Symmetry Is Similar During Classification and Evaluation Tasks i-Perception (IF 1.535) Pub Date : 2020-10-12 Alexis D. J. Makin, Ellen Poliakoff, Giulia Rampone, Marco Bertamini
Visual symmetry perception and symmetry preference have been studied extensively. However, less is known about how people spontaneously scan symmetrical stimuli with their eyes. We thus examined spontaneous saccadic eye movements when participants (N = 20) observed patterns with horizontal or vertical mirror reflection. We found that participants tend to make saccades along the axis of reflection and
-
The Influence of Each Facial Feature on How We Perceive and Interpret Human Faces i-Perception (IF 1.535) Pub Date : 2020-09-01 Jose A. Diego-Mas, Felix Fuentes-Hurtado, Valery Naranjo, Mariano Alcañiz
Facial information is processed by our brain in such a way that we immediately make judgments about, for example, attractiveness or masculinity or interpret personality traits or moods of other people. The appearance of each facial feature has an effect on our perception of facial traits. This research addresses the problem of measuring the size of these effects for five facial features (eyes, eyebrows
-
On the Ambient Optic Array: James Gibson’s Insights About the Phenomenon of Chiaroscuro i-Perception (IF 1.535) Pub Date : 2020-09-01 James T. Todd
In 1966, James Gibson first presented his theory of the ambient optic array, and he proposed a new field of ecological optics that he hoped would advance our knowledge on this topic. This study will consider how his ideas have largely come to fruition over the past 50 years. It reviews the research on the visual perception of three-dimensional shape from shading, the effects of ambient light from surface
-
Aesthetic Perception of Line Patterns: Effect of Edge-Orientation Entropy and Curvilinear Shape i-Perception (IF 1.535) Pub Date : 2020-09-01 Sarah Stanischewski, Carolin S. Altmann, Anselm Brachmann, Christoph Redies
Curvilinearity is a perceptual feature that robustly predicts preference ratings for a variety of visual stimuli. The predictive effect of curved/angular shape overlaps, to a large degree, with regularities in second-order edge-orientation entropy, which captures how independent edge orientations are distributed across an image. For some complex line patterns, edge-orientation entropy is actually a
-
How Visual Perception of the Inside of Things Creates the Impossible Dovetail i-Perception (IF 1.535) Pub Date : 2020-09-01 Vebjørn Ekroll, Rob van Lier
Here, we consider a well-known wooden puzzle known as the impossible dovetail. We argue that an intriguing form of amodal completion, dealing with spontaneous interpretations of the inside of objects is the key to understanding why people find it difficult to see how the impossible dovetail is indeed possible.
-
Seeing Global Motion in a Random Dot Image Sequence i-Perception (IF 1.535) Pub Date : 2020-09-01 Chien-Chung Chen, Hiroshi Ashida, Xirui Yang, Pei-Yin Chen
In a stimulus with multiple moving elements, an observer may perceive that the whole stimulus moves in unison if (a) one can associate an element in one frame with one in the next (correspondence) and (b) a sufficient proportion of correspondences signal a similar motion direction (coherence). We tested the necessity of these two conditions by asking the participants to rate the perceived intensity
-
In the Blink of an Eye: Reading Mental States From Briefly Presented Eye Regions i-Perception (IF 1.535) Pub Date : 2020-09-01 Gunnar Schmidtmann, Andrew J. Logan, Claus-Christian Carbon, Joshua T. Loong, Ian Gold
Faces provide not only cues to an individual’s identity, age, gender, and ethnicity but also insight into their mental states. The aim was to investigate the temporal aspects of processing of facial expressions of complex mental states for very short presentation times ranging from 12.5 to 100 ms in a four-alternative forced choice paradigm based on Reading the Mind in the Eyes test. Results show that
-
Jumpy and Jerky: When Peripheral Vision Faces Reverse-Phi i-Perception (IF 1.535) Pub Date : 2020-09-01 Jean Lorenceau, Patrick Cavanagh
When an annulus in fast apparent motion reverses its contrast over time, the foveal and peripheral percepts are strikingly different. In central vision, the annulus appears to follow the same path as an annulus without flicker, whereas in the periphery, the stimulus seems to randomly jump across the screen. The illusion strength depends on motion speed and reversal rate. Our observations suggest that
-
Apparent Motion Is Computed in Perceptual Coordinates i-Perception (IF 1.535) Pub Date : 2020-07-01 Jiahan Hui, Yue Wang, Peng Zhang, Peter U. Tse, Patrick Cavanagh
When a Gabor moves in one direction in the visual periphery while its internal texture moves in the orthogonal direction, its perceived direction can deviate from its physical direction by as much as 45° or more. Lisi et al. showed that immediate saccades go to the physical location of double-drift targets, whereas delayed saccades primarily go to their perceived locations. Here, we investigated whether
-
Amodal Completion Revisited. i-Perception (IF 1.535) Pub Date : 2020-07-01 Walter Gerbino
Amodal completion (AC) is analyzed, by looking at its historical roots and persisting conceptual difficulties. Looking at the origin of the concept, it becomes clear that it is not equivalent to perception of occluded parts. The role of fragment incompleteness is discussed, to clarify that it cannot be taken as a necessary factor for eliciting AC. The standard view of AC, depicted as a set of processes
-
Problems in Audiovisual Filtering for Children with Special Educational Needs. i-Perception (IF 1.535) Pub Date : 2020-07-01 Stephanie Armstrong-Gallegos,Roderick I Nicolson
There is pervasive evidence that problems in sensory processing occur across a range of developmental disorders, but their aetiology and clinical significance remain unclear. The present study investigated the relation between sensory processing and literacy skills in children with and without a background of special educational needs (SEN). Twenty-six children aged between 7 and 12 years old, from
-
Cross-Modal Perceptual Organization in Works of Art. i-Perception (IF 1.535) Pub Date : 2020-07-01 Liliana Albertazzi,Luisa Canal,Rocco Micciolo,Iacopo Hachen
This study investigates the existence of cross-modal correspondences between a series of paintings by Kandinsky and a series of selections from Schönberg music. The experiment was conducted in two phases. In the first phase, by means of the Osgood semantic differential, the participants evaluated the perceptual characteristics first of visual stimuli (some pictures of Kandinsky’s paintings, with varying
-
Do Glasses Modulate Age Perception? i-Perception (IF 1.535) Pub Date : 2020-07-01 Nicolas M Brunet,Jonathan Sharp
No formal studies have reported how glasses influence age perception, except for a London Vision Clinic survey that found that people over 45 look 5 or more years older when wearing eyeglasses. To investigate the effect of eyeglasses and sunglasses on age perception while controlling for age and interpersonal differences, we digitally manipulated the photographs of faces of 50 young adults, to create
-
See What You Feel: A Crossmodal Tool for Measuring Haptic Size Illusions. i-Perception (IF 1.535) Pub Date : 2020-07-01 Olga Daneyko,Angelo Maravita,Daniele Zavagno
The purpose of this research is to present the employment of a simple-to-use crossmodal method for measuring haptic size illusions. The method, that we call See what you feel, was tested by employing Uznadze’s classic haptic aftereffect in which two spheres physically identical (test spheres) appear different in size after that the hands holding them underwent an adaptation session with other two spheres
Contents have been reproduced by permission of the publishers.