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Tag: "auditory" at biology news

Elephants imitate truck noises, other animals

...similar to recorded sounds that were common in the auditory environment of the subjects of this study. Spectrogram analyses of the audio frequency of the imitations were nearly perfect matches to the original sounds. Mlaika, a ten-year-old adolescent female African elephant living in Kenya among a group of s...

Elephants imitate sounds as a form of social communication

...similar to recorded sounds that were common in the auditory environment of the subjects of this study. Spectrogram analyses of the audio frequency of the imitations were nearly perfect matches to the original sounds. Mlaika, a ten-year-old adolescent female African elephant living in Kenya among a group of s...

Scientists journey to southern Africa to unravel the secret world of elephant communication

... develop a much greater tactile sensitivity in the auditory cortex of their brain than people with normal hearing. Working in the laboratory of Christopher Contag, an associate professor of pediatrics at Stanford, O'Connell-Rodwell has been investigating the possibility that newborns with severe hearing loss ...

Researchers make surprise discovery that some neurons can transmit three signals at once

...caused by abnormal inhibitory signaling within the auditory system, a region of the brain that is the focus of... as if by design, during the exact period when the auditory brain is undergoing refinement, the GABA and glycine neurotransmitters can produce depolarizations, ...

Researchers Closer To Helping Hearing-Impaired Using Stem Cells

...lop into cells with many of the characteristics of auditory neurons, such as the presence of specific genes and proteins. Dr. Hashino said she and her colleagues are beginning new experiments to test the feasibility of marrow stromal cell transplantation to stimulate the growth of the nerve cells that are of...

UI researcher studies deafness in fruit flies, humans

...and humans rely on the same genes to develop their auditory organs, which in the fruit fly is in the antenna. ...nal role in hearing will provide new insights into auditory mechanisms, not only in fruit flies, but in humans, as well," he says. ...

Study shows humans have ability to track odors, much like bloodhounds

...t be allowed to sniff. That's almost like studying auditory localization but having your ears plugged. We actually enabled natural behavior, we enabled subjects to sniff, and we think that's a major difference." ...

Study charts origins of fear

...cks. "We tested the animals using both spatial and auditory cues," Zhuo says. "In one experiment, the mice received small shocks when entering a chamber and they developed fear memory. In another experiment, we used sound tones to be associated with shocks. When NR2B was blocked, they no longer avoided the ch...

How fish hear and make sounds at same time

...nd. The researchers believe that understanding the auditory system of the plainfin midshipman fish (Porichthys...eral pattern of connections between neurons in the auditory system is the same in all vertebrates, including mammals. While humans hear with the cochlea of the ...

Scientists and engineers apply nature's design to human problems

...echanical Engineering Minami Yoda is developing an auditory retina based on the fish ear. School of Materials Science and Engineering Professor Ken Sandhage and School of Chemistry and Biochemistry Assistant Professor Nils Kr�ger explore nanostructure synthesis via the self-assembled, biomineralized temp...

Grasshopper love songs give insight into sensory tuning

...rsity Berlin describe experiments with grasshopper auditory neurons that reveal new details of such sensory co...us snippets of white noise to isolated grasshopper auditory nerves and measured the electrophysiological signals reflecting the reactions of the auditory neuron...

Bats use touch receptors on wings to fly, catch prey, study finds

...ar" for flying in the dark because of a remarkable auditory talent that allows them to determine their physica...han 30 years, focusing on echolocation and the bat auditory system. The bat's sense of touch has been a side interest since the early 1980s. To test his hypot...

Sooner is better with cochlear implants, Stanford scientist shows

...es, the researchers discuss how they used a simple auditory test and found that some children with cochlear implants fuse the visual and auditory aspects of speech - just like people with normal hearing. But the effect was only seen in children w...

Frog’s ear canal may provide insights for understanding human hearing loss

...es of that species. Researchers Albert S. Feng, an auditory neuroscientist at the University of Illinois, Urbana-Champaign; Narins, who studies auditory behavior, neurophysiology and mechanics; and colleagues conducted behavioral and physiological studi...

Carnegie Mellon scientists show brain uses optimal code for sound

...d signals. Abstracting from the neural code at the auditory nerve, they represented sound as a discrete set of...the patterns observed by neurophysiologists in the auditory nerves. "We've found that timing of just a sparse number of spikes actually encodes the whole range...

Stanford study of owls finds link in brain between sight and sound

...rmined that the circuits in the brain that process auditory information are influenced powerfully by the circu...trol gaze direction affect how the brain processes auditory information," he added. With funds from the National Institutes of Health, Winkowski and Knudsen us...

Zebra finches remember songs dad sang

...f the brain involved in hearing. This suggests the auditory version of the caregiver's song is stored first, and that it may serve to guide the vocal learning process. The paper is titled "Early Auditory Experience Generates Long-Lasting Memories That May Subserve Vocal Learning in Songbirds." "There is inde...

With cochlear implants, earlier use leads to better speech

...edicine. Nicholas JG, Geers AE. Effects of early auditory experience on the spoken language of deaf children at 3 years of age. Ear and Hearing 2006;27(3):286-289. ...

Brain enzyme treatment relieves memory lapse in Alzheimer's mice

... "freezing" behavior in response to the box or the auditory cue. Contextual versus cued responses represent di... the mice showed no differences in response to the auditory tone, suggesting variation among brain regions in the role of Uch-L1. In mice with symptoms that m...

Virtual realities against pain

...unt of attention involving various senses (visual, auditory and kinaesthetic), an active emotional involvement, and participation from the patient to compete with the signals of the harmful stimuli. The advanced distraction techniques (ADTs) recently developed use 3D images combined with dynamic audio stim...

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