Tag: "cues" at biology news
Disabling a sensory organ prompts female mice to act like male mice
...uiting the sensory organ that detects the chemical cues
mice use to attract mates, a team of Howard Hughes...h sexes and are switched on or off by the chemical cues
mice use to initiate sex. "The female behaves exactly like the male," said Dulac. "In the big pictu...
New UD tissue-engineering research focuses on vocal cords
...el biomaterials, combined with defined biophysical cues
and biological factors, are being used for functio...), artificial extracellular matrix, and biological cues
and mechanical stimuli that capture the mechanical and biological characteristics of the natural org...
Strength of connections between brain regions may affect an adolescent's response to peer influence
...r planning and extracting information about social cues
from movement, but the connectivity between these regions was stronger in children who were marked as less vulnerable to peer influence. These children were also found to have more activity in the prefrontal cortex, an area important for decision mak...
Stressed-out African naked mole-rats may provide clues about human infertility
...to dominance behaviour, said Dr Faulkes. Natural cues
such as changes in day length and social stress ac...he way mammals respond to social and environmental cues
are still largely unknown, he continued. In a wider comparative study of African mole-rat species, w...
Modern brains have an ancient core
.... Their role was likely to directly convey sensory cues
from the ancient marine environment to changes in the animals body. Over time these autonomous cells might have clustered together and specialised forming complex brain centres like the vertebrate hypothalamus. These findings revolutionise the way we...
Loss of cell's 'antenna' linked to cancer's development
...y tumors fail to respond properly to environmental cues
that cause normal cells to stop growing. Hence, the discovery that too much HEF1 and Aurora A cause cilia to disassemble provides important hints into what may be happening in cancers. Defects in cilia have already been identified in one disease t...
Study shows lizard moms dress their children for success
...its in different circumstances. Females use social cues
to predict the circumstances their progeny will en...ing of the eggs. "The females are responding to cues
that predict something about the future environment, but we're not sure yet exactly what that is," L...
Cancer stem cells can go it alone
...wever, are not equally responsive to environmental cues
that repress uncontrolled cell proliferation of the stem cells, explains Zucchi. When grown in culture dishes, LA7 cells act just like normal stem cells and, when prodded with appropriate cues, differentiate into all the cell lineages found in the ...
Have I been here before?
...t of an airport. It is only by seeking out unique cues
that the specific airport can be identified." Researchers believe that a set of neurons called 'place cells' fire to provide a sort of blueprint for any new space we encounter. The next time we see the space, those same neurons fire. Thus we know ...
News tips from the Journal of Neuroscience
...eight, before daughter cells finally heed external cues
and differentiate into oligodendrocytes. This week, Dugas et al. tracked down the molecule that makes up this mitogen-dependent intracellular timer. The cyclin-dependent kinase inhibitor p57 Kip2 was transiently upregulated right after oligodendrocy...
New insights into the neural basis of anxiety
... Normal mice show less fear towards such ambiguous cues
than to clearly threatening stimuli. A team of researchers led by Cornelius Gross at the EMBL Mouse Biology Unit now discovered that this response to ambiguous stimuli requires a specific receptor molecule for serotonin, a signal many brain cells ...
Babies able to tell through visual cues when speakers switch languages: UBC study
...r has switched to a different language from visual cues
alone, according to a University of British Columbia study. Researcher Whitney Weikum found that infants are able to discern when a different language is spoken by watching the shapes and rhythm of the speaker's mouth and face movements. The find...
Flexible genes allow ants to change destiny
...ir impact. "We don't yet know what environmental cues
influence the caste destiny of the larvae it could be the food they're fed, the temperature, or even pheromones," says Dr Hughes. Dr Hughes' research has been published online in Proceedings of the Royal Society B: Biological Sciences....
In a first, scientists develop tiny implantable biocomputers
...ability to monitor and interact with intracellular cues
such as mutations and abnormal gene levels is still in progress. Benenson and colleagues including Ron Weiss, associate professor of electrical engineering at Princeton, have also developed a conceptual framework by which various phenotypes could b...
Do fruit flies have free will?
...In this setup, the flies do not receive any visual cues
from the environment and since they are fixed in space, their turning attempts have no effect. Thus lacking any input, their behavior should resemble random noise, similar to a radio tuned between stations. However, the analysis showed that the tempo...
Study shows response to financial loss parallels brain's processing of pain
...e and 11 femalelearned to associate abstract image cues
with a specific amount of money: 50 pence (equivalent to $1) or ₤1 ($2). The researchers recorded their brain activity over 200 trials as they showed subjects first the original image then an outcome screen indicating whether they had won the a...
Study led by Scripps Research scientist reveals little-known cell networks vital to circadian rhythm
... and respond rapidly not only to the synchronizing cues
emanating from the SCN but also to physiological signals related to feeding and behavior. "Future studies should focus on addressing the system impact of these cellular networks," Kay said. "Our results validate clock model predictions previously o...
Reversing cancer cells to normal cells
...d release signals from their own microenvironment, cues
that promote tumor growth and metastasis. In order to better understand what signals the melanoma cells are sending and receiving, Dr. Hendrix and her colleagues used the microenvironment of the zebrafish to study whether the tumor cells could co...
Food cue-related brain activity linked to obesity?
...lamic and hypothalamic brain regions. Food-related cues
triggered dramatic changes in the functional conne...gether, these results suggest that food-associated cues
have a powerful influence on neuronal activity and gene expression in brain areas mediating complica...
How genetic malfunction causes a form of retardation
...2, that plays a key role in allowing environmental cues
such as growth factors to instruct multipotent precursor cells to generate one cell type versus another. Moreover, we have shown that the same constitutively activated SHP-2 that occurs in a subpopulation of NS patients causes aberrant neural develop...
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