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*  Bottom-Up Visual Perception: What Saccadic Eye Movements Suggest For Designers - Vanseo Design
In bottom-up visual perception our eyes quickly move and fixate before processing the information they take in. Some data is ... The fovea can distinguish size, color, shape, and a variety of other characteristics. Unfortunately the fovea is small. It can ... Together these processes lead to the complex interactions that make up visual perception as new information from our visual ... visual perception. You are here:. Home / Blog / Web Design / Bottom-Up Visual Perception: What Saccadic Eye Movements Suggest ...
  http://vanseodesign.com/web-design/bottom-up-visual-perception/
*  Falcons pursue prey using visual motion cues: new perspectives from animal-borne cameras | Journal of Experimental Biology
optimal visual angle determined by high acuity fovea orientation. ϕo. optimal bearing angle defined by Eqn 1. χ. angle of the ... Thus, one can distinguish between these three strategies by measuring the behavior of ϕ during pursuits: for optimal visual ... 2004). Visual guidance of intercepting a moving target on foot. Perception 33, 689-715. ... erratically moving prey in complex environments. Understanding their methods for tracking and following rapidly moving objects ...
  http://jeb.biologists.org/content/217/2/225.full
*  Day vision | Article about day vision by The Free Dictionary
Complex visual acts, such as form recognition, movement perception, and reading, are believed to depend on widespread cortical ... visual defect resulting in the inability to distinguish colors. About 8% of men and 0.5% of women experience some difficulty in ... The cones become less and less numerous in the retinal zones that are more and more remote from the fovea. In the extreme ... One may distinguish monocular and binocular vision. In monocular vision, one eye functions; in binocular vision, the visual ...
  https://encyclopedia2.thefreedictionary.com/day+vision
*  Visual system - Wikipedia
Newborn infants have limited color perception. One study found that 74% of newborns can distinguish red, 36% green, 25% yellow ... The visual system carries out a number of complex tasks, including the reception of light and the formation of monocular ... Cones are found primarily in the center (or fovea) of the retina. There are three types of cones that differ in the wavelengths ... Prosopagnosia Scotopic sensitivity syndrome Recovery from blindness Visual agnosia Visual modularity Visual perception Visual ...
  https://en.wikipedia.org/wiki/Visual_system
*  Perception in Visual Communication. Evolution and Neurology of Vision | Hausarbeiten publizieren
Perception in Visual Communication. Evolution and Neurology of Vision - Simon Valentin - Seminararbeit - Biologie - Evolution ... surprising as the human eye and the associated neurological system is one of the most complex organs and is able to distinguish ... Cones are situated in an area of the retina called fovea. The spot where the optic nerve exits to the brain is called blind ... In the following chapters I will draw attention to the basic principles of perception, especially visual perception as well as ...
  https://www.hausarbeiten.de/document/299245
*  Stereoscopic Vision in the Absence of the Lateral Occipital Cortex
Perception. 1998;27:1367-1377. [PubMed]. 14. Cumming BG, Parker AJ. Responses of primary visual cortical neurons to binocular ... In a complex scene, one can distinguish many different sorts of relative disparity [2]: e.g. relative disparity within a ... For example, in Figure 1A, the eyes are directed at point a, so the retinal images of point b lie further from the fovea in the ... The perception and prehension of objects oriented in the depth plane. I. Effects of visual form agnosia. Exp Brain Res. 1996; ...
  http://pubmedcentralcanada.ca/pmcc/articles/PMC2935377/
*  Dog anatomy - Wikipedia
Experimentation has proven that dogs can distinguish between complex visual images such as that of a cube or a prism. Dogs also ... to the dog and the human perception of "green" appears as "white," a shade of gray. This white region (the neutral point) ... a high density of rods in the fovea, an increased flicker rate, and a tapetum lucidum. The tapetum is a reflective surface ... The dog's visual system has evolved to aid proficient hunting. While a dog's visual acuity is poor (that of a poodle's has been ...
  https://en.wikipedia.org/wiki/Dog_anatomy
*  Pre-attentive processing - Wikipedia
Van der Heijden, A. H. C. (1996). Perception for selection, selection for action, and action for perception. Visual Cognition, ... Simple and complex cells in the brain process boundary and surface information by deciphering the image's contrast, orientation ... When the image hits the fovea, it is highly magnified, facilitating object recognition. The images in the periphery are less ... For example, they often have difficulty following a conversation as they cannot distinguish which parts are important and are ...
  https://en.wikipedia.org/wiki/Pre-attentive_processing
*  Integral Options Cafe: Mark P Mattson - Superior Pattern Processing Is the Essence of the Evolved Human Brain
Language is a complex behavior in which auditory and/or visual patterns learned from other individuals or perceived in the ... creativity and complex behaviors. The ability to distinguish reality from fantasy is one example where education is lacking ... visual system selected for during this transition were forward-positioned eyes to allow binocular vision and depth perception, ... and changes in the structure of the retina to include a fovea and color vision (Kaas, 2012). The abilities to efficiently ...
  http://integral-options.blogspot.com/2014/09/mark-p-mattson-superior-pattern.html
*  Eye Tracking and Web Usability: A Good Fit? | UX Magazine
In a complex interface, many of these visual factors may be in play, and because of the complex influence the entire visual ... On each fixation, the fovea gathers new detail about the visual field. Each saccade is a rapid adjustment of the fixation point ... This activity is thought to incorporate raw data from successive eye fixations into perceptions of visual cues such as movement ... Eye tracking also doesn't measure peripheral vision, which does not distinguish color or fine detail, but is good for coarse ...
  http://uxmag.com/articles/eye-tracking-and-web-usability-a-good-fit?rate=WCQq1-NO6EIhtGTKPzEXA8jiJ8nHt0iXymmys0JhuZk
*  Portia africana - Wikipedia
Fovea: a small pit or depression in or round any eye of many types of animal - "Fovea: Dictionary.com". The American Heritage ... Complex worlds from simpler nervous systems. MIT Press. pp. 5-40. ISBN 978-0-262-66174-4. Retrieved 12 April 2011. Ruppert, E.E ... Jackson, R.R.; A.D. Blest (1982). "The distances at which a primitive jumping spider, Portia fimbriata, makes visual ... Harland, Duane P.; Robert R. Jackson (2004). "Portia Perceptions: The Umwelt of an Aranephagic Jumping Spider". In Frederick R ...
  https://en.wikipedia.org/wiki/Portia_africana
*  Peripheral vision - Wikipedia
... hemianopsia Depth perception Eye movement Eye movement in music reading Fovea Perimetry Visual field Visual perception Tunnel ... and a complex of visual areas located along the banks of the interhemispheric fissure (a deep groove that separates the two ... Rod cells are unable to distinguish color and peak in density in the near periphery (at 18° eccentricity), while cone cell ... In clinical usage the central part of the fovea is typically referred to simply as the fovea. In terms of visual acuity, " ...
  https://en.wikipedia.org/wiki/Peripheral_vision
*  Head-mounted display system - Kopin Corporation
Visual image display apparatus having a video display for one eye and a controllable shutter for the other eye. 1992-10-06. ... This ray impinges on the fovea of the eye 496 and is reflected back along line L1. The ray returns to the display 492 in the ... This eliminates the complex software needed for pattern recognition in the typical CCD approach. This is because the reflected ... The gradings are spaced such that the eye 1600 cannot distinguish lines in the structure 1620. In a preferred embodiment, the ...
  http://www.freepatentsonline.com/6140980.html
*  Jumping spider - Wikipedia
Jumping spiders conduct complex, visual courtship displays using both movements and physical bodily attributes. Unlike females ... As the eyes are too close together to allow depth perception, and the animals do not make use of motion parallax, they have ... It has been shown that they are able to distinguish some details as well, and without them no "looming response" will be ... It is analogous to the way most primates move their eyes to focus images of interest onto the fovea centralis. Such movements ...
  https://en.wikipedia.org/wiki/Jumping_spider
*  Publikationen - FB06 - Psychologie und Sportwissenschaft
Schmidt, F and R.W. Fleming (2016). Visual perception of complex shape-transforming processes. Cognitive Psychology, 90: 48-70. ... Brenner, E., Granzier, J. J., & Smeets J. B. (2011). Color naming reveals our ability to distinguish between a colored ... Valsecchi, M. & Gegenfurtner, K.R. (2016). Dynamic re-calibration of perceived size in fovea and periphery through predictable ... i-Perception 4, 516-531.. *Cholewiak, S.A., Fleming, R.W. & Singh, M. (2013). Visual perception of the physical stability of ...
  http://www.uni-giessen.de/fbz/fb06/psychologie/abt/allgemeine-psychologie/allgemeine-psychologie/publikationen
*  Aliasing / Moiré | cinema5D
... of the visual cortex in the brain. Only the central two degrees of the visual field is focussed on the fovea, approximately ... If your perception of reality is already based on your eyes and brain filtering out a ton of unnecessary extra information, and ... You are perceiving a computationally constructed reality all the time, something far more complex and nuanced than a camera ... a difference which is important to distinguish. The only thing that matters to the viewer is "perceived" sharpness and detail ...
  https://www.cinema5d.com/technology/aliasingmoire/
*  Visual stability | Philosophical Transactions of the Royal Society B: Biological Sciences
Conscious perception of complex events is likely to occur at a higher level of the hierarchy of time-scales in the brain, ... our visual system actively perceives the world by pointing the fovea, the area of the retina where resolution is best, towards ... It will be important to distinguish between these three types of spatiotopy in future studies to see which, if any, of these ... 1967 Ways of looking at perception. In Models for the perception of speech and visual form (ed. Wathen-Dunn W.), pp. 25-43. ...
  http://rstb.royalsocietypublishing.org/content/366/1564/468
*  Flashcards - BIOL 455 Visual
V5 - perception of motion. *. It has (1) complex receptive fields responding to (2) complex forms and (3) recognized objects ... 3. What is the fovea? What is special about this? (3). 4. What causes our blind spot? Why?. 5. What is a saccade? What does it ... 5. Large receptive field because info comes in through numerous rods and is integrated (cannot distinguish exactly which rod ... 3. AT least two cones to ensure high visual acuity and good perception of form and color extraction. ...
  https://www.freezingblue.com/flashcards/print_preview.cgi?cardsetID=211567
*  Geniculocortical relay of blue-off signals in the primate visual system | PNAS
... could contribute to cortical mechanisms for visual perception via the koniocellular pathway. ... 2A Top and Bottom). We could not distinguish these cells from other blue-off cells on the basis of their functional cone inputs ... Responses were fit in the complex plane with free parameters A and w and an additional phase (transport) delay term. For ... Anatomical reconstruction of connections of five S-cone terminals in macaque fovea (16) showed connections with midget-PC ...
  http://www.pnas.org/content/103/51/19512
*  Color vision - Wikipedia
... color perception systems, which distinguish blue, green, and yellow-but cannot distinguish oranges and reds. There is some ... a complex process that starts with the differential output of these cells in the retina and it will be finalized in the visual ... although this seems to not be the case at the fovea, with midget cells synapsing in the P-laminae. The koniocellular laminae ... In this sense, color is not a property of electromagnetic radiation, but a feature of visual perception by an observer. ...
  https://en.wikipedia.org/wiki/Color_vision
*  Adaptation (eye) - Wikipedia
Vision and visual perception. New York: John Wiley and Sons, Inc.; 1965. Hallett PE. The variations in visual threshold ... The fovea is blind to dim light (due to its cone-only array) and the rods are more sensitive, so a dim star on a moonless night ... With light adaptation, the eye has to quickly adapt to the background illumination to be able to distinguish objects in this ... It is characterized by a breakdown of the RPE/Bruch's membrane complex in the retina, leading to an accumulation of cholesterol ...
  https://en.wikipedia.org/wiki/Adaptation_(eye)
*  CERKL Mutations Cause an Autosomal Recessive Cone-Rod Dystrophy with Inner Retinopathy | IOVS | ARVO Journals
Visual acuity ranged from 20/25 to light perception (Table 1). Fundus examination in the mildest disease expression showed ... were detectable within 2 mm of the fovea. From 2 to 5 mm eccentric to the fovea, only a single thick hyporeflective layer was ... Futerman AH Hannun YA . The complex life of simple sphingolipids. EMBO Rep. 2004;5:777-782. [CrossRef] [PubMed] ... Symbol colors distinguish milder disease (yellow) from more advanced (light brown) and end-stage (dark brown) disease. ...
  https://iovs.arvojournals.org/article.aspx?articleid=2185520
*  Proceedings of the Royal Society of London B: Biological Sciences
2008 Visual perception after long-term implantation of a retinal implant. Invest. Ophthalmol. Vis. Sci. 49, E-Abstract 1786. ... Patient 2 was able to distinguish between 16 different letters cut from white paper (5-8 cm high, font: Tahoma), placed on the ... Epiretinal implants seek to interact directly with the retinal output neurons; the image processing of the complex inner ... In our study, precise localization of the microelectrode array under the fovea appeared important for the restoration of useful ...
  http://rspb.royalsocietypublishing.org/content/early/2010/11/01/rspb.2010.1747.short?rsblind
*  The contribution of foveal and peripheral visual information to ensemble representation of face race | JOV | ARVO Journals
... perception relies on weighting visual information differently depending on its origin from either the fovea or the visual ... To distinguish between global and fovea-biased averaging, we compared observers' behavioral data to data obtained by modeling ... These and other studies (e.g., Haberman & Whitney, 2010) report ensemble representation of complex high-level visual ... In the human visual system, only the foveal region of the visual field-that is, the central 2° of visual angle-can be described ...
  http://jov.arvojournals.org/article.aspx?articleid=2664015
*  Contrast (vision) - Wikipedia
In visual perception of the real world, contrast is determined by the difference in the color and brightness of the object and ... As mentioned above, contrast sensitivity describes the ability of the visual system to distinguish bright and dim components of ... E. Peli (Oct 1990). "Contrast in Complex Images" (PDF). Journal of the Optical Society of America A. 7 (10): 2032-2040. doi: ... contrast and is projected onto the fovea of the retina. Thus, when an optometrist or ophthalmologist assesses a patient's ...
  https://en.wikipedia.org/wiki/Contrast_(vision)