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Sensory in Biological News

Fate in fly sensory organ precursor cells could explain human immune disorder

... new finding about the Notch signaling pathway in sensory organ precursor cells in the fruit fly could ... system, two daughter cells arise from a single sensory organ precursor mother cell. Among the daughter ... from the same mother cell. Thus the fruit flies sensory organ precursor cell division has been used as a ...

Investigating the development of mechanosensitivity

... arises. By measuring electrical impulses in the sensory neurons of mice, the neurobiologists and pain ... , 2009, doi:10.1038/emboj.2009.73).* The sensory neurons, which are sensitive to touch and pain, ... in Berlin-Buch were able to show that the sensory neurons in the mouse embryo have already fully ...

Skip this cocktail party

... where Montie now works in David Mann's marine sensory biology lab. Co-author Chris Reddy, a senior ... role in the development of the brain, as well as sensory functions, in particular hearing in mammals. ... "these animals rely on hearing as their primary sensory modality to communicate and to find and catch ...

Preclinical work shows how one gene causes severe mental retardation

... their connections to other neurons for storing sensory information. They also made a promising discovery: When the mice were deprived of sensory stimulation, the brain connections could be ... undergoes profound rearrangements driven by sensory experiences the experience of seeing reorganizes ...

Neuroscientists discover long-term potentiation in the olfactory bulb

... student, had learned that damaging olfactory sensory pathways prevents sheep from forming selective ... a bond that is primarily dependent on olfactory sensory recognition. Using an innovative home-built ... the bottom and working up to the top. All of the sensory systems have a large number of low-level cells ...

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

... direction. "Our discovery suggests that the sensory processing of visual and tactile motion use ... can be influenced by a stimulus in the other sensory modality." Volunteers watched visual motion ... information and recalibrating the brain to its sensory environment. Our neurons are not tired, they are ...

Analysis of fresh strawberries reveals consumer preferences

... of harvest date on the fruits' chemical and sensory characteristics. According to lead author Anne ... Australia ('Rubygem' and 'Sugarbaby'). The sensory study took place at the University of Florida's ... of panelists between 36 and 55 years old. The sensory evaluation showed that tasters determined a high ...

Behind closed eyes

... sounds when there's nothing coming in through our sensory organs. The previous studies of Prof. Rafael ... activity differs if a person is experiencing a sensory event or undergoing its absence. In results that ... bursts that typify a response associated with a sensory percept. This difference appears to be the reason ...

Nicotine activates more than just the brain's pleasure pathways

... and how these pathways are integrated in sensory areas of the brain." The peripheral nervous ... nicotine sends signals directly to the brain's sensory systems by several pathways, similar to the way ... diverse peripheral information to create a unique sensory representation for nicotine." One taste ...

Neural mechanisms of value bias in the human visual cortex

... Acquisition and evaluation of incoming sensory information is absolutely critical for guiding ... areas of the brain involved in processing sensory input, many questions remain. "Little is known ... the acquisition and representation of incoming sensory information, or about the neural mechanisms that ...

Girls have superior sense of taste to boys

... scientific head of the project and head of the sensory Laboratory at the Department of Food Science at ... alone, while future studies will include more sensory aspects such as smells and appearance to provide ... preferences," says Wender Bredie, Professor of sensory Science at the Department of Food Science at ....

Practice as well as sleep may help birds learn new songs

... The authors suggest that reactivation of sensory information at night might be a general mechanism ... Margoliash said. "This theory postulates that a sensory template is formed when listening to an adult ... additional areas are recruited to process the sensory experience." ...

Sniffing out a better chemical sensor

... in the air enter the nostrils and bind with sensory neurons in the nose that convert the chemical ... a smell. In humans, there are about 350 types of sensory neurons and many copies of each type; dogs and mice have several hundreds more types of sensory neurons than that. Odor recognition proceeds in a ...

Streamlining brain signals for speed and efficacy

... VOR-circuit involves only three types of neurons: sensory neurons, which detect head movement; motor ... of contact between nerve cellsthat connect the sensory onto the vestibular nucleus neurons would be ... on your couch, the VOR needs to accurately match sensory input with motor output," she adds. When ...

New sensory devices will aid Parkinson's and stroke patients

... Psychology is researching the development of new sensory devices for those who normally have difficulty ... using engineered timing aids that will provide sensory information that can be picked up through our ... (Temporal Enhancement of Motor Performance Using sensory Guides), will use theories about how the brain ...

Genomics of large marine animals showcased in the biological bulletin

... this prickly creature has an impressive suite of sensory receptors to detect outside signals. And don't ... test if the sea urchin genes are coding for a sensory protein. Comparing the human and the sea urchin genes can also help illuminate how the sensory protein evolved. "The benefit of having new ...

Study links low-frequency hearing to shape of the cochlea

... at different positions along the membrane. sensory cells are attached to the basilar membrane and ... canal. As the basilar membrane moves it tilts the sensory cells, causing the stereocilia to bend. The ... the auditory nerve to the brain. As a result, the sensory cells near the outer end of the cochlea detect ...

A screening strategy using zebrafish targets genes that protect against hearing loss

... of Health. The fishs lateral line contains sensory cells that are functionally similar to those ... that scientists can very efficiently analyze the sensory structures under different conditions to find out ... to some antibiotics and chemotherapy agents, the sensory structures in the inner ear, called hair cells, ...

Moderate prenatal exposure to alcohol and stress in monkeys can cause touch sensitivity

... 5 percent of children who over-respond to sensory information. Since these characteristics can lead ... while pregnant, their offspring are at risk for sensory sensitivities, notes Schneider. Schneider ... for further studies to determine whether reducing sensory sensitivities at an early age in children might ...

Novel mechanism for long-term learning identified by Carnegie Mellon researchers

... model that Barth created. In the model, a mild sensory imbalance is created by allowing the mouse to ... only one whisker. Whiskers are useful in studying sensory plasticity because, like human fingers, each ... surroundings through only one whisker causes a sensory imbalance leading to increased plasticity in the ...

Mutation may cause inherited neuropathy

... dynein, required for the proper functioning of sensory nerve cells, can cause defects in mice that may ... caused a significant reduction in the number of sensory nerve cells in affected mice. They also caused ... similar abnormalities" in human patients with sensory neuropathies. Mutations in the gene for dynein ...

OHSU researchers reveal the science of shivering

... to the skin, also appear to be controlled by the sensory mechanism that we found, explained Kazuhiro ... aspect of this study is that it shows the sensory pathway for shivering, which can be thought of as ... wiring, is parallel to but not the same as the sensory pathway for conscious cold detection. In other ...

Northwestern study looks at sensing, movement and behavior

... in a vehicle -- to come to a complete stop) and sensory volume (the amount of space an animal senses ... or object is moving through space guided by sensory information, including cars, airplanes, trains, ... Weve now given people a way to think about sensory volume and a way to quantify and think about ...

Hearing changes how we perceive gender

... focuses on the brains processing of such sensory information about anothers gender to examine ... at a time. The Northwestern study suggests that sensory interactions are happening at a very early level ... various pitches affected vision very early in the sensory process. The study builds upon scarce ...

Simulation reveals how body repairs balance after damage

... or illness, muscles are deprived of the detailed sensory information they need to perform the constant yet ... reinvents its communication with muscles after sensory loss. The findings could someday be used to ... balance impairment, the nervous system collects sensory information from all over the body (skin, ears, ...

Advance in effort to fight malaria by tricking the mosquito's sense of smell

... By mapping a specialized sensory organ that the malaria mosquito uses to zero in ... life-threatening disease in the world. The sensory organ is the maxillary palp. It is one of three ... The amazing thing that we found was that all the sensory hairs that line the bottom of the maxillary palps ...

Resilin springs simplify the control of crustacean limb movements

... in many animals. I have now shown that it is used to simplify the sensory and motor control systems at a limb joint." The limbs studied, called ... sensor; water is drawn from a wide area in front of the animal over the sensory neurons around its mouth. The flow created in this way mixes odor ...

Diminuendo -- New mouse model for understanding cause of progressive hearing loss

... The respective microRNA seed region influences the production of sensory hair cells in the inner ear, both in the mouse and in humans. The findings ... as they get older. Moreover, if they carry two of these mutants, their sensory hair cells are impaired from birth on. A number of genes associated ...

New findings in taste and smell

... Wnt/-catenin signaling controls taste bud regeneration in mice sensory adaptation in the vomeronasal organ Emx2 stimulates odorant receptor ... Hyperpolarization-activated cyclic nucleotide-gated channels in olfactory sensory neurons mediate axon targeting and glomerular formation Investigations ...

New insights into progressive hearing loss

... of RNA that affects the production of hundreds of other molecules within sensory hair cells of the inner ear. The research provides important new ... Mutation of the miR-96 gene seemed to disrupt development of intricate sensory hair cells in the mutant mice. Mice with two copies of the mutant gene ...

Early family ties: No sponge in the human family tree

... in other animals was already present in sponges. Similarly, eye-like sensory organs can already be detected in box jellyfish. "One of the goals of ... out how and when the genetic toolkit for the nervous system, muscles and sensory organs evolved in animal history," Wrheide concludes. ...

Team identifies a molecular switch linking infectious disease and depression

... of Texas immunologist) Ed Blalock said in 1984, the immune system is a sensory organ. The immune system is exquisitely adapted as a sensory system to 'see' infectious agents. And it communicates that information to ...

Taste, odor intervention improves cancer therapy, according to Virginia Tech, Wake Forest study

... two thirds of cancer patients who receive chemotherapy report altered sensory perception, such as decreased or lost taste acuity or metallic taste. Altered sensory perception causes psychological anxiety and malnutrition, and thus ...

Neural mapping paints a haphazard picture of odor receptors

... -- were found in almost exactly the same spot on the olfactory bulb, a sensory structure measuring some four to five millimeters across and located at ... as those of distant glomeruli." This seemingly haphazard layout of sensory properties stands in marked contrast to other brain maps, such as those ...

Honeybees as plant 'bodyguards'

... Wrzburg, Germany, earlier found that many caterpillars possess fine sensory hairs on the front portions of their bodies that enable them to detect air ... such as the sound of an approaching predatory wasp or honeybee. "These sensory hairs are not fine-tuned," Tautz said. "Therefore, caterpillars cannot ...

Deprived of a sense of smell, worms live longer

... mutations in C. elegans . These mutations inhibit the activity of some sensory neurons in the worm, and that helped the researchers conclude that ... hint at some sort of connection, Kornfeld says. He says it's possible that sensory perception cues have important metabolic consequences independent of what ...

Lower your blood pressure, hydrate your skin and reduce dental plaque -- with chocolate?

... chocolate's role in health and wellness, as well as its history, culture, sensory pleasures and more. Science has proved what ancient civilizations ... and the health results will be the same. There are psychological and sensory benefits to pampering your body's outside with chocolate too. CHOCOLATEA ...

Newly discovered molecular switch helps decide cell type in early embryo development

... switch to be a main tuning mechanism for instructing cells whether to form sensory nerves or blood cells in different parts of the body. The molecular ... Sens regulates downstream genes that support the development of sensory organs, such as those important to hearing, touch or sight. Dr. ...

Caltech neurobiologists discover individuals who 'hear' movement

... his experience had all the characteristics of a synesthesia: an automatic sensory cross-activation that he had experienced all of his life," says Saenz. ... In fact, she and Koch think that the brain may normally transfer visual sensory information over to the auditory cortex, to create a prediction of the ...

Summer heat too hot for you? What is comfortable?

... of biological chemistry and member of Johns Hopkins' new Center for sensory Biology. "You clearly don't want to hang around or adapt to a temperature ... changes in temperature. TRP proteins also are involved in other types of sensory biology, including vision, explains Montell. But rather than being ...
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