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Tag: "frontal" at biology news

Cancer stem cells linked to radiation resistance

...they transplanted the glioblastoma tissue into the frontal lobes of the brains of mice. The researchers first measured the number of glioma stem cells present in the original tissue and then administered set doses of ionizing radiation to the cell cultures and to the mice. In both cases, the researchers o...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...out 20%, while levels of NAA in the cerebellar and frontal region of the brain and frontal choline significantly increased by about 10%. Brain volume regeneration correlated with the percenta...

Brain regions do not communicate efficiently in adults with autism

...ttern of decreased neural connectivity between the frontal lobes and the rest of autistic brain showed up on the alpha wave band. These findings support several other studies using functional magnetic resonance imaging and positron emission tomography, both of which gauge brain activity by measuring blood f...

Slow brain waves play key role in coordinating complex activity

...earchers argue, areas like the auditory cortex and frontal cortex, separated by several inches in the cerebra...rid of 64 electrodes on the surface of the brain's frontal and temporal lobes to precisely localize the source of the seizure so it could be removed in a subse...

Neural bottleneck found that thwarts multi-tasking

...tleneck was caused by the inability of the lateral frontal and prefrontal cortex, and also the superior frontal cortex, to process the two tasks at once. Both areas have been shown in previous experiments to play...

40,000-year-old skull shows both modern human and Neandertal traits

... best, unusual for a modern human. These included frontal flattening, a fairly large juxtamastoid eminence and exceptionally large upper molars with unusual size progression which are found principally among the Neandertals. Professor Zilhao said: "Such differences raise important questions about the evol...

Ancient amphibians evolved a bite before migrating to dry land

...on would result in a faint pushing together of the frontal bones in the skull, while a sucking motion would pull those bones ever so slightly apart. By comparing the skull roofs of living fish to those of early amphibians and their fishy ancestors, we were able to determine whether the fossil species fed by ...

Vasectomy may put men at risk for type of dementia

...n the brain. In FTD, most of the damage is in the frontal lobes; in PPA, it's in the language centers of the left hemisphere of the brain. Weintraub theorizes a vasectomy may raise the risk of PPA (and possibly FTD) because the surgery breeches the protective barrier between the blood and the testes, c...

Insomnia drug can improve brain function

...thors demonstrated increased brain activity in the frontal cortex, which is associated with higher cognitive performances, with zolpidem. They suggest that the mechanism may be due to an activation of neural circuits in the brain that control movement and verbal expression, but that the lesions that occurred...

Imaging pinpoints brain regions that 'see the future'

...ying future thought is not isolated in the brain's frontal cortex, as some have speculated. Although the frontal lobes play a well-documented role in carrying out future-oriented executive operations, such as anti...

Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle

...compared to women and women had more activity in a frontal cortex (executive hub) area at the time of reward delivery compared to men. ...

Stroke study sheds light on left-right brain divide

...ing errors. The research focused on damage to the frontal lobes, the front part of the brain which is known ...t, compared to those who had damage to their right frontal lobes. Funded by the Wellcome Trust, the research is now published in the journal Brain. Dr Tim H...

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