Sentences with phrase «brain regions respond»

The researchers discovered that in dogs, 48 % of their auditory brain regions respond more strongly to environmental sounds, such as a car engine, than to voices.

A researcher gives the volunteer anesthesia and measures how those brain regions respond.

The results are somewhat ambiguous, since brain regions respond differently to different drugs.

The researchers presented the overlapping streams at two different rhythms — two images per second and 1.5 images per second — allowing them to identify brain regions responding to those stimuli.

«Key brain region responds to subjective perception in study of individual neuron activity.»

Not exact matches

Scientists have gained a better molecular understanding of the region of the brain in individuals with epilepsy which — due to a developmental abnormality, trauma, stroke, or a growing tumor — has stopped responding to control signals, and this results in recurrent seizures.

When they next measured responses in the auditory regions of the brain, a more sensitive test, the mice responded to much quieter sounds: 19 of 25 mice heard sounds quieter than 80 decibels, and a few could heard sounds as soft as 25 - 30 decibels, like normal mice.

Several critical factors led the team to hope he might benefit from DBS, including the fact that sometimes he did respond and an imaging study showed that language - processing regions of his brain activated in response to spoken words.

So first author Dr. Madhurima Benekareddy and colleagues activated the prefrontal region in mice and rats, and performed a brain - wide screen to find which regions responded.

Brain regions that responded equally to both tasks yielded a difference of zero, while those that responded strongly to one task and not the other showed a high value.

Peering into the subjects» brains using functional magnetic resonance imaging, the researchers found that on average the regions of the brain that usually light up when an individual is aroused, the hypothalamus and fusiform gyrus, responded normally to moderately erotic images.

MX's brain responded in much the same way as the architects» brains did, activating a network of regions that process vision and recognize individuals.

At the same time, the obese girls sipping milk shakes showed decreased activation in the striatum, a region near the center of the brain that is studded with dopamine receptors and known to respond to stimuli associated with rewards.

They found that the regions of the infants» brains that showed activity when looking at incorrect math are the same regions in adults that respond to errors.

Previous studies in humans and a variety of animals have shown that the OPFC is part of a network of brain regions that respond to food, sex, and other rewards.

In keeping with these earlier findings, Parkinson and her colleagues found activity in a widely distributed network of brain regions was sensitive to the social status of the people in the film clips, with individual regions responding to different aspects of it.

The researchers also found that activation of ESP1 - responding neurons in the region of the brain called the hypothalamus enhanced sexual behavior in female mice, even in the absence of actual ESP1, by using various tools to chemically or optically control neural activities, combined with a process called the TRAP method, which allows them to selectively manipulate neurons responding to a particular stimulus.

Brain - imaging studies have revealed that several blueberry - size regions in the temporal lobe — the area under the temple — specialize in responding to faces.

The preceding imagery already activates the auditory areas once, and when the same brain regions are needed for perception, they are «tired» and will respond less.»

Now a study in Nature Neuroscience last October has found clues to the brain's predilection for the positive, identifying regions that may fuel this «optimism bias» by preferentially responding to rosier information.

Both electrical mapping with the implanted electrodes and the more conventional functional whole - brain imaging in a magnetic scanner identified a cluster of regions in the FFA in both cortical hemispheres of Blackwell's brain that responded strongly to faces.

As the animals were shown different animated graphics, neurons responded within milliseconds, and astrocytes became active seconds later — matching the time delay that neuroimagers have long known accompanies blood flow to active brain regions.

Furthermore, monitoring of the reward regions of the brain revealed that the dogs responded best when praising words were used in combination with praising intonation.

It was generally accepted that this was the limit of what could be detected by fMRI — identification of a region in the brain that had responded to a large stimulus, such as a continuous 30 second «blast» of bright light.

The researchers induced variations in the degree of demand on these brain regions — a method of assessing how genetic risk might impair the brain's ability to respond to attention challenges — by varying task difficulty.

This study is also the first to demonstrate that this repurposed vision center in blind people is not just responding to new functions haphazardly; the region has become specialized and segmented by function, like any other part of the brain.

They found that in 17 of the 19 participants the fusiform face area, the brain's face - recognition region, was turned on most strongly when they saw somebody of their own color, indicating that it responds to certain kinds of faces with greater acuity.

Some of these regions respond just to the actual features of the face, whereas others respond to how things appear to the viewer, but it is unknown where in the brain this difference arises.

The brains of the voice - hearers automatically responded to sounds that contained hidden speech compared to sounds that were meaningless, in the regions of the brain linked to attention and monitoring skills.

It also showed how that region of a dog's brain responds more strongly to the scents of familiar humans than to the scents of other humans, or even to those of familiar dogs.

In fact, the «higher» regions of the brain start responding and passing judgment remarkably early.

With the fMRI, Spence was able to see that she activated extensive regions of her frontal brain lobes and also took significantly longer to respond when agreeing with the cops» account.

Subjects would indicate to researchers when they were planning the movement, so the researchers could see what part of the cerebral cortex — the outermost region of the brain, which plays a key role in functions from movement to attention to learning — responded if a button - push was or was not executed.

In addition, monitoring the reward regions of the brain revealed that the dogs responded best when they heard praising words spoken with a praising intonation.

«This is exciting because it represents a direct, rapid pathway in the brain that lets animals respond to anxiety - provoking places without needing to go through the higher - order brain regions,» said Mazen Kheirbek, PhD, an assistant professor of psychiatry and member of the Weill Institute for Neurosciences and the Kavli Institute for Fundamental Neuroscience at UCSF, and study's other senior investigator.

A powerful brain circuit that responds to rewarding events has just been discovered in a brain region previously associated with controlling reactions to fear and pain.

Touch can actually stop certain regions of the brain from responding to threat clues.

Looking into the brain of a happily married woman faced with a stressful situation, we see when she is holding her husband's hand, brain regions that at other times respond to threat are quieter and less active.