Tag: "visual" at biology news

Atlas of Science Literacy completes mapping of science-learning pathways

...Benchmarks for Science Literacy . By providing a visual display of the Benchmarks learning goals, Roseman noted, "Its much easier for teachers and others to see the rich relationships among ideas. The Atlas maps emphasize the importance of these connections and how they contribute to students science li...

Clinical trial for diabetic macular edema

...which showed the ability of ranibizumab to improve visual acuity in patients with diabetic macular edema. V...ssessed using a reading chart, and median and mean visual acuity improved by 11 and 12.3 letters respectively at 7 months. This corresponds to the ability to ...

Genetic studies endow mice with new color vision

...he genetically altered mice demonstrated their new visual ability by choosing the correct panel in 80 percent of the trials. By contrast, normal mice only chose correctly one third of the time, the score that one would obtain by guessing randomly among the three panels. According to the scientists, their f...

Making mice with enhanced color vision

...s are unique among mammals in that they have three visual receptors that absorb short (blue), medium (green)...al question was whether the mice could use the new visual information. To address this question, the researchers used a classic preference test; mice set b...

Prefrontal cortex loses neurons during adolescence

...lt female rats had fewer neurons than males in the visual cortex, a brain region associated with perception. But no other studies have looked for sex differences in the number of neurons in the prefrontal cortex. It is unclear whether sex differences seen in the rat PFC also occur in humans, Juraska said....

Stealth camouflage at night

...he research sheds light on the animal's remarkable visual system and nighttime predator/prey interactions. ... in the science world. "The scarcity of studies on visual predator/prey interactions at night constitutes a major gap in sensory and behavioral ecology," he s...

NAS announces Virtual Symposium on Visual Culture and Bioscience

...e world will discuss the intersections between the visual arts and the life sciences at this international e...isualcultureandbioscience.org . Suzanne Anker, a visual artist and theorist working with genetic imagery, will moderate the discussion. She is the co-author...

Tracking sperm whales and jumbo squid

...evels are extremely low, the squids reaction time, visual acuity and swimming speed may be significantly impaired because of an inadequate supply of oxygena condition known as hypoxia. "Squid need a constant supply of oxygen to support their metabolism," Davis added. "Sperm whales, on the other hand, take...

Transport interrupted -- Texas A&M biologists trace cause of early blindness to tissue defect

...nd cone cells that allow organisms to detect their visual worldsin zebrafish, a vertebrate whose eye physiology is essentially identical to that of a human. Recently he became intrigued by a 30-year-old debate involving photoreceptor deathspecifically, whether it was a cause or an effectin choroideremia, an...

News tips from the Journal of Neuroscience

...ts receptor TrkB contributes to the development of visual pathways. Marshak et al. made use of the alternatively spliced TrkB.T1, which lacks the intracellular kinase domain and thus can act as a dominant-negative inhibitor of TrkB signaling. The authors overexpressed a green fluorescent protein (GFP)TrkB1....

Out-of-body experiences may be caused by arousal system disturbances in brain

...ause a condition of temporary paralysis along with visual or auditory hallucinations immediately after waking up or before falling asleep due to an ill-timed disconnection between the brain and the body. Although it was once considered very rare, about 25 percent of all people have probably experienced slee...

UC Davis researchers discover key to body's ability to detect subtle temperature changes

...ical signals that can be decoded by the brain into visual information. But how the human body is able to sense a one-degree change in temperature has remained a mystery. "For a long time, we didnt know how temperature sensing was being carried out in animals," said Jie Zheng, assistant professor in the D...

CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes

...eef released by the CSIRO shows for the first time visual confirmation of the theory that sediment plumes travel to the outer reef, and beyond. The remotely sensed images, taken from February 9 to 13 this year, challenge conventional thought that sediment travelling from our river systems into the GBR is ...

How do marine turtles return to the same beach to lay their eggs?

... cross several hundred kilometers of ocean with no visual landmarks. How do they manage to return to the same spot? A study by Simon Benhamou of the Center for Functional and Evolutionary Ecology at Montpellier1, France, together with other groups (CNRS, IRD, IFREMER, CEDTM2, University of Pisa), shows that...

Eye movement tasks can be used to assess fetal alcohol spectrum disorders

...cade) a stimulus that appeared in their peripheral visual field. Researchers measured reaction times, direc...ovement both towards and away from the peripheral visual target," said Reynolds. "FASD children also made a greater number of direction errors, even in the ...

Lizards 'shout' against a noisy background

Lizards that signal to rivals with a visual display "shout" to get their point across, UC Davis researchers have found. Male anole lizards signal ownership of their territory by sitting up on a tree trunk, bobbing their heads up and down and extending a colorful throat pouch. They can spot a...

New research finds people and pigeons see eye to eye

DURHAM, N.H. Pigeons and humans use similar visual cues to identify objects, a finding that could hav...ound that humans and pigeons, which have different visual systems, have evolved to use similar techniques and information to recognize objects. Understandin...

News tips from the Journal of Neuroscience

... magnetic resonance imaging in macaques to examine visual modulation of auditory receptive fields. The autho...auditory stimuli, but some areas responded just to visual stimuli. Combined auditory and visual stimuli produced enhanced responses particularly in caudal fie...

Sense and sensibility in short-term memory

...revious studies that tried to compare auditory and visual memory did little or nothing to put the stimuli th...ine memory for studied lists of either auditory or visual items," said Sekuler. The study used computer-generated visual images and sounds to test auditory...

Computer program bridges gap between scientists, water policy makers

...stand each other. WaterSim developers created a visual interface that allows users to simultaneously view maps, graphs and numerical data that reflect a variety of regional environmental and policy conditions. As users manipulate those conditions, they can see how those decisions would affect water avail...

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(Date:7/21/2014)... Growers of annual bedding plant seedlings or plugs ... a large stem diameter and high root dry ... during shipping and transplant. To achieve these desirable ... on supplemental lighting from high-pressure sodium lamps during ... diodes (LEDs) can give greenhouse growers other lighting ...
(Date:7/21/2014)... their cells are stressed when facing temperature extremes. Worse ... in the cell are slowed down more than others, ... of whack. Yet, those cells manage to keep their ... Rochester and the European Molecular Biology Laboratory have found ... of proteins is a key process in all cells, ...
(Date:7/20/2014)... A study of 473 sets of twins followed since ... of 24-month-old identical twins had language delay compared to ... the rate of late language emergence of single-born children. ... , The results of the study were published in ... Hearing Research . , University of Kansas Distinguished ...
Breaking Biology News(10 mins):LEDs shine in bedding plant production study 2When temperatures get cold, newly-discovered process helps fruit flies cope 2Large twin study suggests that language delay due more to nature than nurture 2Large twin study suggests that language delay due more to nature than nurture 3
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