Visual Figures Research Articles

The impact of presentation modes on mental rotation processing: a comparative analysis of eye movements and performance

Mental rotation is the ability to rotate mental representations of objects in space. Shepard and Metzler’s shape-matching tasks, frequently used to test mental rotation, involve presenting pictorial representations of 3D objects. This stimulus material has raised questions regarding the ecological validity of the test for mental rotation with actual visual 3D objects. To systematically investigate differences in mental rotation with pictorial and visual stimuli, we compared data of N=54\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{mathrsfs} \\usepackage{upgreek} \\setlength{\\oddsidemargin}{-69pt} \\begin{document}$$N=54$$\\end{document} university students from a virtual reality experiment. Comparing both conditions within subjects, we found higher accuracy and faster reaction times for 3D visual figures. We expected eye tracking to reveal differences in participants’ stimulus processing and mental rotation strategies induced by the visual differences. We statistically compared fixations (locations), saccades (directions), pupil changes, and head movements. Supplementary Shapley values of a Gradient Boosting Decision Tree algorithm were analyzed, which correctly classified the two conditions using eye and head movements. The results indicated that with visual 3D figures, the encoding of spatial information was less demanding, and participants may have used egocentric transformations and perspective changes. Moreover, participants showed eye movements associated with more holistic processing for visual 3D figures and more piecemeal processing for pictorial 2D figures.

Eye movements in the development of geometric shape recognition: from sensory-motor processes to theoretical perception

AbstractEfficient recognition of geometric shapes is an important aspect of proficiency in geometry. Building theoretically on the cultural-historical approach enriched by the physiology of activity, we investigate theoretical perception in geometry—the ability to recognize conceptual geometric aspects of visual figures. Aiming to understand the development of theoretical perception, we investigate how sensory-motor processes of eye movements differ between adults and children when perceiving geometric figures. In an empirical study, we explored the variety of perceptual strategies used by first-grade students and compared them with the adults’ perception. The results reveal the contraction of eye movements: with growing expertise, foveal analysis—namely, an inspection of the figures by directing the gaze to their parts—is substituted by extrafoveal analysis—namely, perceiving without looking directly. The variety of the observed children’s perceptual strategies demonstrates that theoretical perception of different figures is heterogeneous. From the suggested theoretical perspective, the direct foveal inspection of particular figures is critical for the development of general anticipatory images of geometric shapes. Our theoretical analysis and empirical findings lead to distinguishing several functions of sensory-motor processes in theoretical perception in geometry. Those functions include positioning the retina in the best way for the comparison of sensory feedback with the geometric shape’s anticipatory image, advancing an anticipatory image based on visual experience, and regulating covert attention. All of these functions need to be taken into account when interpreting the results of eye-tracking studies in mathematics education research. Notably, our research highlights the limitations of the eye-mind hypothesis: direct fixations on a figure are not always needed for its theoretical perception and, the other way around, a fixation position may indicate the comparison of a broad extrafoveal region with an anticipatory image.

Compositional diversity in visual concept learning

Humans leverage compositionality to efficiently learn new concepts, understanding how familiar parts can combine together to form novel objects. In contrast, popular computer vision models struggle to make the same types of inferences, requiring more data and generalizing less flexibly than people do. Here, we study these distinctively human abilities across a range of different types of visual composition, examining how people classify and generate “alien figures” with rich relational structure. We also develop a Bayesian program induction model which searches for the best programs for generating the candidate visual figures, utilizing a large program space containing different compositional mechanisms and abstractions. In few shot classification tasks, we find that people and the program induction model can make a range of meaningful compositional generalizations, with the model providing a strong account of the experimental data as well as interpretable parameters that reveal human assumptions about the factors invariant to category membership (here, to rotation and changing part attachment). In few shot generation tasks, both people and the models are able to construct compelling novel examples, with people behaving in additional structured ways beyond the model capabilities, e.g. making choices that complete a set or reconfigure existing parts in new ways. To capture these additional behavioral patterns, we develop an alternative model based on neuro-symbolic program induction: this model also composes new concepts from existing parts yet, distinctively, it utilizes neural network modules to capture residual statistical structure. Together, our behavioral and computational findings show how people and models can produce a variety of compositional behavior when classifying and generating visual objects.

Hippocampal subfield volumes and memory performances: associations with stimulus modality and free recall or recognition

AbstractBackgroundAge‐related memory decline is well associated with hippocampal atrophy, although the specific role of hippocampal subfields in memory function has not been thoroughly investigated yet. In this study, we investigated the associations between hippocampal subfield volumes and free recall and recognition performances in verbal and visual memory tasks in older adults without dementia.MethodWe selected 97 right‐handed participants without dementia aged 60 to 85, 42 males, from the Translational Biomarkers in Aging and Dementia (TRIAD) cohort. From T2‐weighted MRIs with 0.7*0.7*1mm voxel size, the hippocampi were segmented five subfields: 1) DG (DG); 2) CA2 with CA3 (CA2/CA3); 3) CA1; 4) strata radiatum, lacunosum and moleculare (SRLM); and 5) subiculum by using the MAGeT‐Brain algorithm. Memory was assessed with Rey Auditory Learning test for verbal free recall (RAVLT7) and recognition (RAVLT‐R), and with Aggie Figure Learning test for visual free recall (AFLT7) and recognition (AFLT‐R). Linear models were used to test the association between hippocampal subfield volumes and memory performances with age, sex and total intracranial volume as covariates (p<0.05, corrected for false discovery rate).ResultThe volumes of bilateral CA1 and SRLM were significantly associated with RAVLT7 and RAVLT‐R. The right DG volume was significantly associated with AFLT7 and RAVLT7. AFLT7 was also associated with the volume of right CA2/CA3 while AFLT‐R was not associated with any hippocampal subfield (see Figures 1 & 2).ConclusionOur results are consistent with the view that hippocampal subfields contribute differently to memory traces: CA1 for recollection that requires contextual information; the DG for pattern separation (creating new distinct representations of each stimulus); and CA3 for pattern completion (the recollection of a stimulus from a partial memory). Contextual information is more important when recollecting known words, while distinct and efficient encoding may be especially useful for search strategies inherent to free recall. Pattern completion could be particularly useful to efficiently recollect visual abstract figures based on visual features during free recall. Overall, this shows that hippocampal subfield segmentation offers a better understanding of their distinctive roles in cognition.

Hippocampal subfield volumes and memory performances: associations with stimulus modality and free recall or recognition

AbstractBackgroundAge‐related memory decline is well associated with hippocampal atrophy, although the specific role of hippocampal subfields in memory function has not been thoroughly investigated yet. In this study, we investigated the associations between hippocampal subfield volumes and free recall and recognition performances in verbal and visual memory tasks in older adults without dementia.MethodWe selected 97 right‐handed participants without dementia aged 60 to 85, 42 males, from the Translational Biomarkers in Aging and Dementia (TRIAD) cohort. From T2‐weighted MRIs with 0.7*0.7*1mm voxel size, the hippocampi were segmented five subfields: 1) DG (DG); 2) CA2 with CA3 (CA2/CA3); 3) CA1; 4) strata radiatum, lacunosum and moleculare (SRLM); and 5) subiculum by using the MAGeT‐Brain algorithm. Memory was assessed with Rey Auditory Learning test for verbal free recall (RAVLT7) and recognition (RAVLT‐R), and with Aggie Figure Learning test for visual free recall (AFLT7) and recognition (AFLT‐R). Linear models were used to test the association between hippocampal subfield volumes and memory performances with age, sex and total intracranial volume as covariates (p<0.05, corrected for false discovery rate)ResultThe volumes of bilateral CA1 and SRLM were significantly associated with RAVLT7 and RAVLT‐R. The right DG volume was significantly associated with AFLT7 and RAVLT7. AFLT7 was also associated with the volume of right CA2/CA3 while AFLT‐R was not associated with any hippocampal subfield (see Figures 1 & 2).ConclusionOur results are consistent with the view that hippocampal subfields contribute differently to memory traces: CA1 for recollection that requires contextual information; the DG for pattern separation (creating new distinct representations of each stimulus); and CA3 for pattern completion (the recollection of a stimulus from a partial memory). Contextual information is more important when recollecting known words, while distinct and efficient encoding may be especially useful for search strategies inherent to free recall. Pattern completion could be particularly useful to efficiently recollect visual abstract figures based on visual features during free recall. Overall, this shows that hippocampal subfield segmentation offers a better understanding of their distinctive roles in cognition.

РИТМЫ ЗЛА В АНГЛИЙСКОЙ ПСАЛТИРИ XIV В

In medieval iconography, one of the main properties of evil is its multiplicity and changeability. As we know from the works on medieval demonology published by Alexander Makhov, such fluidity of forms was often equated with disorder and contrasted with an orderly hierarchy of the sacred. The author demonstrates that this applied not only to demons, but also to figures of non-Christians, primarily Jews and Romans in scenes of the Passion of Christ. The author of the present article takes the case of the Fitzwarin Psalter, one of the most extraordinary manuscripts illuminated in England in the 14th century. He shows that the variations of forms and colors in the figures of demonized enemies of Christ were sometimes organized in the rhythmic sequences which gave disorder a partial ordering. However, even in images of saints, in which symmetry and hierarchy dominated for a long time, variations were constantly introduced. They complicated (made more “live”) the static composition and led the viewer’s gaze. These observations suggest that many of the transformations of markers of otherness that researchers have long noted should be seen not only as visual figures of evil, but also as particular instances of the desire for varietas characteristic of medieval aesthetics in general

The Democratic Sublime: On Aesthetics and Popular Assembly

The Democratic Sublime: On Aesthetics and Popular Assembly

Cyclic visualization of the respiratory stages in teaching human physiology to english-speaking students

In the course of Human Physiology, students of different specialties learn cyclic processes reflecting the work of the cardiovascular, respiratory, female reproductive systems and sleep as well. Visualization of the cyclic processes is essential for better understanding of the organization and functioning of these systems and finding pathological deviations with formation of defective cycles.
 The objective of the work is to analyze the application of the visualization of the respiratory stages into the educational process. Dynamics of the physiological processes at various stages of respiration with the help of schematic visual figures allows effective formation of the students’ systemic understanding of the respiratory system functions and its interrelations with the cardiovascular system. These enable to apply the acquired theoretical knowledge while solving clinical situational tasks and formation of professional competence.

Sailing Away From the Pyramid: A Revised Visual Representation of Maslow’s Theory Z

Maslow’s hierarchy of needs, in its pyramidal representation, is one of the most recognizable visual figures in psychology and management. Recently, there have been attempts to incorporate Maslow’s Theory Z, which encompasses the highest level of human motivation beyond self-actualization, into this pyramid. However, this pyramidal representation of Theory Z encompasses many of the misconceptions of Maslow’s theory of human motivation, and it fails to convey the richness of Theory Z. As a result, this article aims to address and rectify the shortcomings of previous pyramidal representations of both Maslow’s original hierarchy of needs and Theory Z; it also aims to provide a revised visual representation of Theory Z. This article will first summarize and build on Kaufman’s recent “sailboat” approach to depict Maslow’s hierarchy of needs. Next, it will present the method and results of a content analysis on several of Maslow’s writings, revealing the necessary components and subcomponents of the revised visual representation of Theory Z. This revised representation will then be discussed in detail, and a description of each component and subcomponent will be provided. The goal is to provide students and researchers alike with a more accurate visual depiction of Theory Z.

Determining the Demands of Disabled People by Artificial Intelligence Methods

Analysis of brain activities and remote control are among the current issues that are being studied. Analysis of signals arising during brain functions is electroencephalography (EEG). EEG signals have intellectual, visual stimulation, and motion resultant forms. Especially, EEG signals generated by visual stimulus are within the scope of this study. In this study, research was carried out on the classification of EEG signals formed in a person looking at visual figures. For these studies, first of all, EEG signals from the brain were recorded with images and filtered to remove noise. Then, the features were extracted from the signals. In this study, Moment 5 feature was also used in addition to the features used in many studies such as mean, median, standard deviation and entropy. Then, classification was made using Support Vector Machine (SVM), k Nearest Neighbor (KNN), and Decision Tree (DT) algorithms. Classification was made for 4 different visual shapes used, since these shapes are square, circle, triangle, and star, and the same categorical names were used in the classification stage. As a result of the classification of EEG signals; SVM and KNN algorithms have determined which shape is viewed with 99.99% accuracy. These results show that different signals are produced in the brain according to the structure of the shape viewed. This situation shows that it can be used as a method to give patients the opportunity to express their requests just by looking or thinking.

Octopus Consciousness: The Role of Perceptual Richness

It is always difficult to even advance possible dimensions of consciousness, but Birch et al., 2020 have suggested four possible dimensions and this review discusses the first, perceptual richness, with relation to octopuses. They advance acuity, bandwidth, and categorization power as possible components. It is first necessary to realize that sensory richness does not automatically lead to perceptual richness and this capacity may not be accessed by consciousness. Octopuses do not discriminate light wavelength frequency (color) but rather its plane of polarization, a dimension that we do not understand. Their eyes are laterally placed on the head, leading to monocular vision and head movements that give a sequential rather than simultaneous view of items, possibly consciously planned. Details of control of the rich sensorimotor system of the arms, with 3/5 of the neurons of the nervous system, may normally not be accessed to the brain and thus to consciousness. The chromatophore-based skin appearance system is likely open loop, and not available to the octopus’ vision. Conversely, in a laboratory situation that is not ecologically valid for the octopus, learning about shapes and extents of visual figures was extensive and flexible, likely consciously planned. Similarly, octopuses’ local place in and navigation around space can be guided by light polarization plane and visual landmark location and is learned and monitored. The complex array of chemical cues delivered by water and on surfaces does not fit neatly into the components above and has barely been tested but might easily be described as perceptually rich. The octopus’ curiosity and drive to investigate and gain more information may mean that, apart from richness of any stimulus situation, they are consciously driven to seek out more information. This review suggests that cephalopods may not have a similar type of intelligence as the ‘higher’ vertebrates, they may not have similar dimensions or contents of consciousness, but that such a capacity is present nevertheless.

Entrepreneurship and Interdisciplinary Education – Semiotic Aspects

Marketing communications, which are part of the entrepreneurship’ discipline, can integrate the most important school disciplines with the help of semiotics. Several relevant scientific articles and books in the following areas: business education, integrations between different school (educational) disciplines, semiotics and advertising, metaphor, synecdoche, etc. are analyzed in the Literature Review. The main text of the article studies different examples of corporate style and corporate identity. They are important part of business and entrepreneurship. Admen (artists, designers, etc.) in marketing communications created this corporate style and corporate identity on the basis of various visual metaphors, synecdoche and other stylistic figures. The authors of textbooks for primary and secondary school and the teachers can integrate the education of native language, foreign languages, literature, art and entrepreneurship with the help of these and other stylistic figures. Keywords: semiotics; metaphor; integration; mother tongue; foreign language

The Rural Woman Enters the Frame: A Visual History of Gender, Nation, and the Goodbye Mate in the Postcolonial Río de la Plata

Abstract Around the turn of the twentieth century, the image of a rural woman handing a gaucho on horseback a drink before he trotted away began to circulate with increasing frequency in the Río de la Plata region. The drink the woman passed the man was the local infusion yerba mate, and, in earlier illustrations, it had been served by another man. This gendered shift occurred alongside a dramatic expansion of common peoples’ access to images via photographs and postcards. Tracing the social and visual history of the goodbye mate ritual from the early nineteenth century through the mid-twentieth reveals the quotidian manner in which locals in this region constructed, consumed, and circulated overlapping visions of their nations. As the gaucho become a popular and contested national symbol in Argentina and Uruguay alike, the rural woman (then referred to as la china, but now largely unnamed) became a local one whose faithfulness to the gaucho and, by extension, the nation, was coveted by men across the sociopolitical divide. This article is, on the one hand, a microhistory of the goodbye mate ritual and, on the other, an argument about how centering visual sources and marginal figures, like the china, allows us to better understand the historical and hierarchical construction of national identities and icons.

Fundamental Matrix Computing Based on 3D Metrical Distance

To reconstruct point geometry from multiple images, computation of the fundamental matrix is always necessary. With a new optimization criterion, i.e., the re-projective 3D metric geometric distance rather than projective space under RANSAC (Random Sample And Consensus) framework, our method can reveal the quality of the fundamental matrix visually through 3D reconstruction. The geometric distance is the projection error of 3D points to the corresponding image pixel coordinates in metric space. The reasonable visual figures of the reconstructed scenes are shown but only some numerical result were compared, as is standard practice. This criterion can lead to a better 3D reconstruction result especially in 3D metric space. Our experiments validate our new error criterion and the quality of fundamental matrix under the new criterion.

ANALYSIS OF YURDAER ALTINTAS POSTERS ON THE BASIS OF TYPOGRAPHIC SYSTEMS

The continuous transformation of typography as a means of written and visual expression covers a long period in the history of communication. The triggering factors of this dynamic process are industrial and political developments, which are known to also lay the groundwork for new understanding and movements in the field of art and design. In this process, it is seen that the use of typography especially in poster design has been shaped for various purposes. While writing sometimes fulfills its function of conveying information, sometimes it has turned into visual images in addition to this function and has become an important element of the design. This variety of uses makes it possible to define and apply typography on the basis of categorical systems as an element of design. In this research, textual arrangements in the poster designs of Yurdaer Altıntaş, one of the leading names of graphic design in Turkey were analyzed on the basis of typographic systems. The research was carried out by document analysis method. The scope of the research was determined by the maximum diversity method, which is one of the purposeful sampling methods. Within the scope of the research, all 104 posters that can be accessed from Yurdaer Altıntaş's personal website were examined. The posters included in the study were analyzed using the categorical content analysis method. The systems in Kimberly Elam's book "Typographic Systems" were used as criteria in the analysis of Altıntaş's posters. When all the posters included in the research are examined, it is seen that Altıntaş has absorbed the modern graphic design movements that started to develop in Europe and America since the early 1900s and the innovative typography language of these movements. It is seen that Altıntaş successfully combined with its unique style using both local and universal motifs. Accordingly, the designer did not only use typographic elements as texts that convey information, but also effectively utilized them as visual figures when necessary to strengthen his expression. Keywords: Graphic design, Poster design, Yurdaer Altıntaş, Typography, Typographic Systems

ФИГУРЫ И ЗНАКИ: О ПРИНЦИПАХ ПОСТРОЕНИЯ "МИКРОРАССКАЗА" В РУССКОЙ ИКОНОГРАФИИ

The article considers the principles of constructing a “micronarrative” in Russian iconography. The author analyzes the functioning of subtle visual signs and small figures in well-known compositions. As the paper shows, with their help, icon-painters not only made numerous clarifications and nuances in the depicted scenes, but also created new motifs and autonomous “micro-stories”. The paper focuses mainly on the icons “The miracle of the icon ’Our Lady of the Sign’, or the Battle of Novgorodians with Suzdalians”. Analyzing a series of icons that have survived to this day or are known from sketches, the author shows how differently semiotically Russian masters built the common visual story and what new features appeared in various compositions. The most rich in signs icon was the one painted in the 1460-es and stored nowadays in the Novgorod Museum. Its creator denounces the aggressors-Suzdalians not only using general visual techniques, but also with the help of small, hardly noticeable signs and details that are clearly not aimed at the mass audience. Among other images considered in the article, that icon demonstrates clearly the high variability and plasticity of ‘visual texts’ of Russian iconography – the problematic that has rarely attracted attention by specialists

Elements of Sensory-Emotional Experience as an Integral Part of Forming Visual Meanings: the Role of Conceptual Abilities.

This article analyzes the relationship between sensory-emotional experience in the process of semantic description of vague visual figures, and the level of conceptual (categorical and generative) abilities. The objective of our study was, first, to show the differences in the degree and features of activation of elements of sensory-emotional experience in the process of constructing the meanings of vague visual figures; and, second, to show the relationship of these differences with the level of categorical and generative abilities. We studied 102 older adolescents ages 15-16 years. The research program included the following methods: 1) "Description of vague figures" (E.Yu. Artemyeva's technique change, 1980; 1999); 2) "Generalization of three words" (Kholodnaya, 2012; Kholodnaya et al., 2019); and 3) "Conceptual synthesis" (Kholodnaya, 2012; Kholodnaya et al., 2019). Our results showed that generative abilities play the leading role in determining the degree of severity and diversity of different modalities in forming visual meanings, as compared with categorical abilities. The transition simulation hypothesis explains the results. However, the embodied character of mental modeling (simulation) is not determined "bottom-up" by the individual's bodily state or the activity of corresponding brain zones. On the contrary, conceptual (namely, generative) structures determine the form of the conceptual representations from the "top down." Generative abilities represent the highest level of organization of personal conceptual experience, which acquires a multimodal quality, due to the integral nature of conceptual (generative) structures.

Elements of Sensory-Emotional Experience as an Integral Part of Forming Visual Meanings: the Role of Conceptual Abilities

Background. This article analyzes the relationship between sensory-emotional experience inthe process of semantic description of vague visual figures,and the level of conceptual (categorical and generative) abilities. Objective. The objective of our study was, first, to show the differences in the degree and features of activation of elements of sensory-emotional experience in the process of constructing the meanings of vague visual figures; and, second, to show the relationship of these differences with the level of categorical and generative abilities. Design.We studied 102 older adolescents ages 15-16 years. The research program included the following methods: 1) "Description of vague figures" (E.Yu. Artemyeva's technique change,1980; 1999); 2) "Generalization of three words" (Kholodnaya, 2012; Kholodnaya et al., 2019); and 3) "Conceptual synthesis" (Kholodnaya, 2012; Kholodnaya et al., 2019). Results. Our results showed that generative abilities play the leading role in determining the degree of severity and diversity of different modalities in forming visual meanings, as compared with categorical abilities. The transition simulation hypothesis explains the results. However, the embodied character of mental modeling (simulation) is not determined “bottom-up” by the individual’s bodily state or the activity of corresponding brain zones. On the contrary, conceptual (namely, generative) structures determine the form of the conceptual representations from the "top down." Conclusion. Generative abilities represent the highest level of organization of personal conceptual experience, which acquires a multimodal quality, due to the integral nature of conceptual (generative) structures.

Dielectric Dependent Absorption Characteristics in CNFET Infrared Phototransistor

In future infrared photodetectors, single-walled carbon nanotubes (SWCNTs) are considered as potential candidates due to their band gap, high absorption coefficient (104 - 105 cm −1), high charge carrier mobility and ease of processability. The SWCNT based Field Effect Transistors (CNFETs) are being seriously considered for applications in optoelectronics. In the proposed work optically controlled back gated CNFET is modeled in Sentaurus TCAD to observe the impact of high dielectric oxides on its photoabsorption. The model is based on analytical approximations and parameters extracted from quantum mechanical simulations of the device and depending on the nanotube diameter and the different gate oxide materials. A small deviation in SWCNT chirality shows significant change (more than 50 %) in channel current. Transfer characteristics of the device are analyzed under dark and illuminated conditions. CNFET integrated with HfO2 dielectrics exhibits superior performance with a significant rise in photocurrent current. Precise two dimensional TCAD simulation results and visual figures affirm that the ON state performance of CNFET has significant dependency on the dielectric strength as well as width of the gate oxide and its application in enhancing the performance of carbon nanotube based infrared photo detectors.

Dielectric Dependent Absorption Characteristics in CNFET Infrared Phototransistor

In future infrared photodetectors, single-walled carbon nanotubes (SWCNTs) are considered as potential candidates due to their band gap, high absorption coefficient (104 - 105 cm −1), high charge carrier mobility and ease of processability. The SWCNT based Field Effect Transistors (CNFETs) are being seriously considered for applications in optoelectronics. In the proposed work optically controlled back gated CNFET is modeled in Sentaurus TCAD to observe the impact of high dielectric oxides on its photoabsorption. The model is based on analytical approximations and parameters extracted from quantum mechanical simulations of the device and depending on the nanotube diameter and the different gate oxide materials. A small deviation in SWCNT chirality shows significant change (more than 50 %) in channel current. Transfer characteristics of the device are analyzed under dark and illuminated conditions. CNFET integrated with HfO2 dielectrics exhibits superior performance with a significant rise in photocurrent current. Precise two dimensional TCAD simulation results and visual figures affirm that the ON state performance of CNFET has significant dependency on the dielectric strength as well as width of the gate oxide and its application in enhancing the performance of carbon nanotube based infrared photo detectors.