scholarly journals A Study on the Abstract Shapes and Flat Colors of Emotional Games

2017 ◽  
Vol 17 (5) ◽  
pp. 7-18
Author(s):  
Jin-Hong Park ◽  
◽  
Seung-In Kim
Keyword(s):  
2001 ◽  
Vol 10 (3) ◽  
pp. 312-330 ◽  
Author(s):  
Bernard Harper ◽  
Richard Latto

Stereo scene capture and generation is an important facet of presence research in that stereoscopic images have been linked to naturalness as a component of reported presence. Three-dimensional images can be captured and presented in many ways, but it is rare that the most simple and “natural” method is used: full orthostereoscopic image capture and projection. This technique mimics as closely as possible the geometry of the human visual system and uses convergent axis stereography with the cameras separated by the human interocular distance. It simulates human viewing angles, magnification, and convergences so that the point of zero disparity in the captured scene is reproduced without disparity in the display. In a series of experiments, we have used this technique to investigate body image distortion in photographic images. Three psychophysical experiments compared size, weight, or shape estimations (perceived waist-hip ratio) in 2-D and 3-D images for the human form and real or virtual abstract shapes. In all cases, there was a relative slimming effect of binocular disparity. A well-known photographic distortion is the perspective flattening effect of telephoto lenses. A fourth psychophysical experiment using photographic portraits taken at different distances found a fattening effect with telephoto lenses and a slimming effect with wide-angle lenses. We conclude that, where possible, photographic inputs to the visual system should allow it to generate the cyclopean point of view by which we normally see the world. This is best achieved by viewing images made with full orthostereoscopic capture and display geometry. The technique can result in more-accurate estimations of object shape or size and control of ocular suppression. These are assets that have particular utility in the generation of realistic virtual environments.


Author(s):  
Richard J. Leskosky

Diagonalsymphonien [Diagonal Symphony], a black-and-white, abstract, animated short film made in Germany by Swedish painter Viking Eggeling, assisted by Bauhaus student Erna Niemeyer, is a seminal work of avant-garde cinema. It arose from Eggeling’s experiments trying to create a universal language of abstract symbols in which he created sequential images on long painted scrolls. Though silent, the film explores the concept of visual music—the artificial creation of visual rhythms analogous to music. Eggeling made his images with paper and tin foil cut-outs affixed to black sheets of paper filmed one frame at a time. The abstract shapes, constantly growing and disappearing along diagonal axes, often suggest musical instruments such as panpipes, grand pianos, zithers, and drums. Eggeling premiered his film to friends in 1924. Its first public screening was in Berlin at the 3 May 1925 First International Avant-Garde Film Exhibition, titled Der absolute Film, along with Rene Clair’s Entr’acte (1924), Fernand Leger’s Ballet mecanique (1924), and examples of Walther Ruttmann’s Lichtspiele Opus works (1921–25) and Hans Richter’s Rhythmus films (1921–25). Eggeling’s film received critical praise for its exploration of time and the non-literary potential of film. He, however, was too ill to attend the public screening and died sixteen days later. Diagonal Symphony is his only surviving film.


2021 ◽  
pp. 133-137
Author(s):  
Steve Bowkett ◽  
Tony Hitchman
Keyword(s):  

2020 ◽  
Vol 10 (12) ◽  
pp. 898
Author(s):  
Dylan S. Spets ◽  
Scott D. Slotnick

The thalamus has been implicated in many cognitive processes, including long-term memory. More specifically, the anterior (AT) and mediodorsal (MD) thalamic nuclei have been associated with long-term memory. Despite extensive mapping of the anatomical connections between these nuclei and other brain regions, little is known regarding their functional connectivity during long-term memory. The current study sought to determine which brain regions are functionally connected to AT and MD during spatial long-term memory and whether sex differences exist in the patterns of connectivity. During encoding, abstract shapes were presented to the left and right of fixation. During retrieval, shapes were presented at fixation, and participants made an “old-left” or “old-right” judgment. Activations functionally connected to AT and MD existed in regions with known anatomical connections to each nucleus as well as in a broader network of long-term memory regions. Sex differences were identified in a subset of these regions. A targeted region-of-interest analysis identified anti-correlated activity between MD and the hippocampus that was specific to females, which is consistent with findings in rodents. The current results suggest that AT and MD play key roles during spatial long-term memory and suggest that these functions may be sex specific.


2020 ◽  
Vol 32 (3) ◽  
pp. 527-545 ◽  
Author(s):  
Peter Kok ◽  
Lindsay I. Rait ◽  
Nicholas B. Turk-Browne

Recent work suggests that a key function of the hippocampus is to predict the future. This is thought to depend on its ability to bind inputs over time and space and to retrieve upcoming or missing inputs based on partial cues. In line with this, previous research has revealed prediction-related signals in the hippocampus for complex visual objects, such as fractals and abstract shapes. Implicit in such accounts is that these computations in the hippocampus reflect domain-general processes that apply across different types and modalities of stimuli. An alternative is that the hippocampus plays a more domain-specific role in predictive processing, with the type of stimuli being predicted determining its involvement. To investigate this, we compared hippocampal responses to auditory cues predicting abstract shapes (Experiment 1) versus oriented gratings (Experiment 2). We measured brain activity in male and female human participants using high-resolution fMRI, in combination with inverted encoding models to reconstruct shape and orientation information. Our results revealed that expectations about shape and orientation evoked distinct representations in the hippocampus. For complex shapes, the hippocampus represented which shape was expected, potentially serving as a source of top–down predictions. In contrast, for simple gratings, the hippocampus represented only unexpected orientations, more reminiscent of a prediction error. We discuss several potential explanations for this content-based dissociation in hippocampal function, concluding that the computational role of the hippocampus in predictive processing may depend on the nature and complexity of stimuli.


1986 ◽  
Vol 63 (3) ◽  
pp. 1227-1231 ◽  
Author(s):  
Harriet Williams ◽  
Peter Werner ◽  
George Purgavie

The purpose of the present study was to investigate the nature of the relationship between gross-motor, eye-hand coordination and hemispheric specialization in normal right-handed children. Participants were 30 children, 75–99 mo. 15 boys and 15 girls performed a gross-motor eye-hand coordination task (a controlled, continuous one-handed ball bounce) and a test of hemispheric specialization. A backscreen tachistoscopic projection system was used to present letters and abstract shapes to left and right visual hemifields. A multivariate analysis of variance yielded a significant main effect for eye-hand coordination but not for sex. Follow-up analyses indicated that speed and accuracy of responses to verbal and spatial stimuli presented to the left cerebral hemisphere were significantly related to proficiency of eye-hand coordination. Data suggest that certain aspects of hemispheric specialization may be important to gross-motor eye-hand coordination in young children. Since the left cerebral hemisphere is the major control center for movements of the right side, the hemisphere which controls movements of a particular side may also assume the major responsibility for processing information needed to regulate those movements.


2004 ◽  
Vol 32 (16) ◽  
pp. 4843-4851 ◽  
Author(s):  
R. Giegerich
Keyword(s):  

2016 ◽  
Author(s):  
Hagar Goldberg ◽  
Yuval Hart ◽  
Avraham E Mayo ◽  
Uri Alon ◽  
Rafael Malach

AbstractCommunication through visual symbols is a key aspect of human culture. However, to what extent can people distinguish between human-origin and artificial symbols, and the neuronal mechanisms underlying this process are not clear. Using fMRI we contrasted brain activity during presentation of human-created abstract shapes and random-algorithm created shapes, both sharing similar low level features.We found that participants correctly identified most shapes as human or random. The lateral occipital complex (LOC) was the main brain region showing preference to human-made shapes, independently of task. Furthermore, LOC activity was parametrically correlated to beauty and familiarity scores of the shapes (rated following the scan). Finally, a model classifier based only on LOC activity showed human level accuracy at discriminating between human-made and randomly-made shapes.Our results highlight the sensitivity of the human brain to social and cultural cues, and point to high-order object areas as central nodes underlying this capacity.


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