Search results for "visual information"
showing 8 items of 8 documents
Ewald Hering und die Gegenfarbtheorie
1996
Ewald Hering's color-opponent-theory is still considered one of the foundations of the visual sciences. Prior to Hering, Hermann v. Helmholtz introduced a theory of color appearance, which was based primarily on the physical aspects of the stimulus. In contrast to Helmholtz, Hering's theory strongly emphasized the subject's perception of color. As a consequence, Hering considered Helmholtz' theory inadequate. Contrary to some historical accounts, he did not object to Helmholtz's three-receptor explanation for color-mixture. Instead of Helmholtz' fundamental colors red, green, and blue, Hering suggested that the colors possess opponent character: blue-yellow; red-green; and, black-white. Hel…
Older adults show elevated intermuscular coherence in eyes‐open standing but only young adults increase coherence in response to closing the eyes
2020
New Findings: What is the central question of this study? Can a 14-week strength-training programme modify intermuscular coherence levels during bipedal standing tasks with eyes open and eyes closed and reduce age-related differences? What is the main finding and its importance? Older adults had more prominent common input over 4–14 Hz with eyes open, but during the eyes-closed task the young adults were able to further enhance their common input at 6–36 Hz. This indicates that young adults are better at modulating common input in different motor tasks. Abstract: Understanding neural control of standing balance is important to identify age-related degeneration and design interventions to ma…
''Active Collisions in Altered Gravity Reveal Eye-Hand Coordination Strategies''
2012
White, Olivier | Lefevre, Philippe | Wing, Alan M. | Bracewell, R. Martyn | Thonnard, Jean-Louis; International audience; ''Most object manipulation tasks involve a series of actions demarcated by mechanical contact events, and gaze is usually directed to the locations of these events as the task unfolds. Typically, gaze foveates the target 200 ms in advance of the contact. This strategy improves manual accuracy through visual feedback and the use of gaze-related signals to guide the hand/ object. Many studies have investigated eye-hand coordination in experimental and natural tasks; most of them highlighted a strong link between eye movements and hand or object kinematics. In this experime…
Physical activity, aerobic fitness, and brain white matter : Their role for executive functions in adolescence
2020
Highlights • Aerobic fitness level, but not physical activity, is related to white matter properties in the brain. • The relation between physical activity and working memory is moderated by fractional anisotropy (FA) of the corpus callosum. • The FA of the corpus callosum and superior corona radiata moderates the relation between aerobic fitness and working memory.
Verifying a medical protocol with temporal graphs: the case of a nosocomial disease.
2014
Abstract Objective Our contribution focuses on the implementation of a formal verification approach for medical protocols with graphical temporal reasoning paths to facilitate the understanding of verification steps. Materials and methods Formal medical guideline specifications and background knowledge are represented through conceptual graphs, and reasoning is based on graph homomorphism. These materials explain the underlying principles or rationale that guide the functioning of verifications. Results An illustration of this proposal is made using a medical protocol defining guidelines for the monitoring and prevention of nosocomial infections. Such infections, which are acquired in the h…
Dienasgrāmatas vizuāls un tekstuāls iekārtojums personai ar īpašām vajadzībām dzīves aktivitāšu organizēšanai
2014
Personai, kurai ir psiholoģiskas vai fizioloģiskas problēmas ir nepieciešams atvieglot savu dzīvi, jo ir grūtības uztvert un orientēties plašajā informācijas apjomā. Autore savā darbā vēlējās izpētīt, kādas ir iespējas izveidot dienasgrāmatu cilvēkiem ar īpašām vajadzībām, kurā būtu iekļauta pēc iespējas plašāka un detalizētāka informācija, kas būtu viegli uztverama, izmantojot vizuālo un tekstuālo noformējumu. Diplomdarba tēma – ,,Dienasgrāmatas vizuāls un tekstuāls iekārtojums personai ar īpašām vajadzībām dzīves aktivitāšu organizēšanai.” Darba mērķis: izpētīt dienasgrāmatu un ikonografikas dizaina pielietošanas variācijas un izveidot radošā darba projektu, kurā būtu apvienoti dienasgrām…
Current challenges supporting school-aged children with vision problems: A rapid review
2021
Contains fulltext : 240193.pdf (Publisher’s version ) (Open Access) Many children have undetected vision problems or insufficient visual information processing that may be a factor in lower academic outcomes. The aim of this paper is to contribute to a better understanding of the importance of vision screening for school-aged children, and to investigate the possibilities of how eye-tracking (ET) technologies can support this. While there are indications that these technologies can support vision screening, a broad understanding of how to apply them and by whom, and if it is possible to utilize them at schools, is lacking. We review interdisciplinary research on performing vision investigat…
Fake News. Un approccio design driven
2022
Il fenomeno delle Fake News influisce sia nelle scelte individuali, sia in opinioni e orientamenti politici. Ma pervasività delle tecnologie digitali e diffusione delle notizie false sono due facce della stessa medaglia; quindi per arginare le Fake News occorrono tecnologie e strategie avanzate e interdisciplinari. A partire dalla cultura del design, dove visual communication and visual information supportano un approccio etico condiviso con la comunicazione giornalistica. Infine si sottolinea come il progetto Fake News abbia evidenziato, per le diverse competenze progettuali coinvolte, la potenzialità innovativa dell’Intelligenza Artificiale, che attraverso metriche e algoritmi, ma anche c…