Visual in Biological News

Preclinical work shows how one gene causes severe mental retardation

... the experience of seeing reorganizes the visual cortex, for example, during the same time period ... co-senior author of the study. "We looked at the visual cortex, because in this well-studied model, we ... how connections between brain cells change in visual areas of mice exposed to light or kept in ...

Dolphins maintain round-the-clock visual vigilance

... team set about testing two dolphins' acoustic and visual vigilance over a 5 day period to find out how ... Next Allen Goldblatt and Don Carder designed a visual stimulus to test the dolphins' vigilance while ... which connects the two halves, may transfer the visual information. Having trained both dolphins to ...

6 young ASU faculty earn NSF Career awards

... multimedia processing and statistical methods in visual computing. His Career award provides more than ... create tactile graphics for people with visual disabilities," Li says. His idea is to use computer technology to allow a person with visual impairments to read text or view web site content ...

MIT: How you feel the world impacts how you see it

... called motion aftereffect, occurs not only in our visual perception but also in our tactile perception, ... researchers found that people who were exposed to visual motion in a given direction perceived tactile ... in one direction gave rise to the illusion of visual motion in the opposite direction. "Our ...

Cells with double vision

... hemisphere suffices the blowfly to integrate visual motion information. The resulting information is ... small number of nerve cells in the fly's visual flight control centre, the connections and ... for example. Each of these ten cells receives its visual information from only a narrow vertical strip of ...

Neural mechanisms of value bias in the human visual cortex

... more valuable outcome can influence how visual information is processed in the human brain. The ... journal Neuron , provides insight into how the visual centers encode more valuable stimuli at the ... San Diego. To examine how value impacts visual processing, Dr. Serences used functional magnetic ...

Study reveals effects of unconscious exposure to advertisements

... seen. It has long been known that repeated visual exposure to an object can affect an observer's ... modulating our preferences." A small number of visual exposures to an object typically raises the ... for an object based on a large number of visual exposures will almost always take the shape of an ...

PNNL researchers earn top honors at Supercomputing conference

... called Starlight that presents data in unique visual patterns and allows users to interactively ... is the main motivation for this work and for the visual representations we have chosen," said Oehmen. The visual representations of the data included colorful ...

Acoustical Meeting, Nov. 10-14, 2008 in Miami, Florida

... in improvisations arising from sonic and visual feedback (including gestures by the performers) ... melodies by matching the melody they heard to its visual representation (a series of arrows that indicated ... listeners had to match musical pitch patterns to visual representations of those patterns -- was subject ...

How we see objects in depth: The brain's code for 3-D structure

... Johns Hopkins research suggests that higher-level visual regions of the brain represent objects as spatial ... responses of individual neurons in higher-level visual regions of the brain. A computer algorithm was ... understanding neural codes could help explain why visual experience feels the way it does, perhaps even ...

Duke team explains a longtime visual puzzler in new way

... an entirely new way to explain a puzzling visual phenomenon called the flash-lag effect. ... look at the effect empirically, based on another visual problem, called the inverse optics problem, which ... world, and if you do survive, the improvements in visual circuitry that allowed this success are passed on ...

A second career for a growth factor receptor: keeping nerve axons on target

... processes, called axons, which extend toward visual centers in the brain, lured by attractive cues ... of neuroscience today. Using the mouse visual system, a team of Salk Institute for Biological ... forward to the superior colliculus, a major visual center in the brain. Such a defect in ...

Feats of strength begin a lizard's day

... according to a new study. "Anoles are highly visual species, so in that sense it is not surprising that they would use visual displays to mark territory," said Terry J. Ord, a ... first animals known to mark dawn and dusk through visual displays, rather than the much better known ...

Distinguishing between 2 birds of a feather

... College has revealed that brain cells processing visual information adjust their filtering properties to ... stimuli to garner information on how the brain's visual circuitry works. "Ultimately we are interested in ... require more control over the properties of visual stimuli than a picture of a natural scene would ...

Caltech neurobiologists discover individuals who 'hear' movement

... form of how the brain normally processes visual information. Psychologists previously reported ... of the synesthetes could name examples of daily visual events that caused sounds that they logically ... rhythmic patterns of flashes similar to visual Morse code. Normally, such patterns are easier ...

Grant supports emerging field of massive data analysis and visual analytics

... An emerging research field known as data and visual analytics is helping sift through such mountains ... research in massive data analysis and visual analytics. A research team headed by Haesun Park, ... Computing, will investigate ways to improve the visual analytics of massive data sets through machine ...

'Mind's eye' influences visual perception

... see with the "mind's eye"--directly impacts our visual perception. The research was published online ... which are strongly represented in the primary visual areas of the brain. They then presented a green ... Because orientation is processed in early visual areas, this suggests that imagery's interaction ...

Roadrunner supercomputer puts research at a new scale

... team using it. PetaVision models the human visual systemmimicking more than 1 billion visual neurons and trillions of synapses. Neurons are ... been unable to match human performance on such visual tasks as flawlessly detecting an oncoming ...

Crystal (eye) ball: Study says visual system equipped with 'future seeing powers'

... translate the light that hits our retina into a visual perception of the world around us. While a neural ... in a tenth of a second. Changizi claims the visual system has evolved to compensate for neural ... organize and explain more than 50 types of visual illusions that occur because our brains are ...

Sharper image: UH optometrist establishes sports vision clinic

... in other activities designed to improve their visual abilities. The biggest problem that athletes ... a range of tests to analyze what is called the visual system. The visual system is more than just whats the smallest line ...

Working memory has limited 'slots'

... As our eyes flit from object to object, the visual system briefly shuts off to cut down visual "noise," said Steven J. Luck, professor of ... adult-like working memory system. Outside the visual domain, working memory is used for storing ...

Mantis shrimp vision reveals new way that animals can see

... The discoverywhich marks the fourth type of visual systemsuggests that the ability to perceive ... clear exactly what the mantis shrimps newfound visual ability is good for in nature, Marshall said its ... precise role that these signals, visible to a CPL visual system, play in stomatopod sexual signaling is ...

Improved foam for varicose veins found to be safe in preliminary results from phase II trial

... injectable microfoam experienced no neurological, visual or cardiac changes as a result of the treatment, ... magnetic resonance imaging (MRI) of the brain, visual testing, neurological examinations and ... during the procedure. However, no neurological, visual or cardiac changes were observed in the ...

Language of a fly proves surprising

... to tap into motion-sensitive neurons in the visual system of a common blowfly. Neurons are nerve ... at precise times depending on what the flys visual sensors were trying to tell the rest of the fly about the visual stimulus. When they examined this language, it ...

'Fluorescent' cells give early warning for eye disease

... to measure the degree to which a subtle visual condition affected six women. Victor M. Elner, ... several standard tests used to evaluate vision: visual fields, visual acuity, and pupillary light response. In each ...

The human brain: Detective of auditory and visual change

... human brain is capable of detecting the slightest visual and auditory changes. Whether it is the flash of ... images can disturb the brains ability to detect visual discrepancies. The pre-change scene must be ... Center for Scientific Research (CNRS). In the visual domain, numerous experiments have shown that even ...

'Twinkle after-effect' can help retinal patients detect vision loss quickly and cheaply

... 24, 2007) they demonstrate that a compelling visual illusion known as the induced twinkle ... stare at a blank screen after staring at a noisy visual target such as a detuned television screen. ... or fill in the missing information in their visual field. Since everyone has a blind spot where the ...

Hearing changes how we perceive gender

... to examine whether hearing fundamentally changes visual experience. The study concludes that it does, ... co-authors are investigators at Northwesterns visual Perception, Cognition and Neuroscience ... and tones of voices indeed fundamentally change visual processing. For our study, we used simple ...

Quantitative PET imaging finds early determination of effectiveness of cancer treatment

... for non-Hodgkin lymphoma (NHL) typically involves visual interpretation of scans of cancer tumors. ... B-cell lymphoma (DLBCL) is more accurate than visual analysis alone when using the radiotracer FDG ... to aggressive stage, he explained. However, visual interpretation of PET scans will always be the ...

USC biomedical team to participate in $6 million low vision project

... Institutes of Health (NIH) to begin designing visual aids for millions of older adults who suffer from ... The NIH project will concentrate on designing visual displays that will help these people, who have ... vision and computational neuroscience to build visual displays that will enhance certain parts of an ...

Do migratory birds 'see' the magnetic field?

... between the retinal neurons and Cluster N via the visual thalamus. Thus, the only two parts of the ... are linked to each other by a well-known visual brain circuit, namely by parts of the so-called ... the hypothesis that migratory birds use their visual system to perceive the reference compass ...

Color contrast is 'seen' by the brain early doors

... detected by part of the brain called primary visual cortex, which is located at the very back of the head where visual information first enters the cortex of the brain. ... part of the brain. They showed the patient visual illusions in which the contrast between the ...

Adult brain can change, study confirms

... and behavioral studies to show that the adult visual cortex does indeed reorganize-and that the change affects visual perception. The study appears online Sept. 5 in ... recovery following stroke, brain injury, or visual disorders. Animal studies conducted two ...

Brain's timing linked with timescales of the natural visual world

... used by the neurons of the brain to represent our visual world. By studying the way the brain rapidly and precisely encodes natural visual events that occur on a slower timescale, a team ... reported in a September 6th Nature article. visual perception is limited by the relatively slow way ...

Restoring sight, advances in fertility treatments and better visibility for pilots at FIO

... to the retina, the part of the eye that converts visual information into electric signals that travel to ... and transmitting output signals to the brain's visual cortex via the optic nerve. The discovery several ... Retinal Prostheses: Design Constraints Based on visual Psychophysics") Near-Infrared LIDAR Helps ...

A bird's eye view of art

... together, these experiments suggest that humans and pigeons use similar visual cues to identify 'good' paintings and painting texture. Although there is ... brain architectures, they can function in similar ways to make complex visual discriminations. Professor Watanabe concludes: "Artistic endeavors have ...

Protecting fresh-cut produce

... The quality of the lettuce was evaluated based on eight points: overall visual quality (OVQ), browning edges, color, decay/breakdown/sliminess, aroma, ... research on harpin and environmental conditions' effects on microbes and visual quality of fresh-cut produce. ...

Some short-term memories die suddenly, no fading

... memories that help us process complex tasks during the few seconds these visual memories exist. For decades, scientists have held that such short-term ... until they suddenly disappeared. To test the accuracy of short-term visual memory, Weiwei Zhang, a postdoctoral scholar, and Steve Luck, a professor ...

Early brain activity sheds new light on the neural basis of reading

... which peaked at ~140 ms, at a location coincident with the fMRI-defined visual word form area (VWFA). Significant responses were also detected to words ... the inferior frontal gyrus appears to play a key role integrating the visual and language aspects of reading. Reading problems are common. Further ...

Mollusks taste memories to build shells

... which was first described by physicist Ernst Mach in 1865 to explain visual illusions, is that centers of excitation in the retina, for example are ... of neuronal activity and underlies the extreme sensitivity of our eyes and visual system to edges the activation of cells at an edge inhibits neighboring ...