Sentences with phrase «changes in blood flow in»

Studies have also shown changes in the blood flow in the brain, but none had looked at the two together, to determine whether the connection between the neck and deeper parts of the brain was causing whiplash symptoms.

Not exact matches

Using functional magnetic resonance imaging to measure changes in blood flow, she found that as people received more information, their brain activity increased in the dorsolateral prefrontal cortex, a region behind the forehead that is responsible for making decisions and controlling emotions.

We are changed as we seek to imitate Christ and, more, to be merged with him, to be blood brothers in the ancient sense and have his sweet life flow through us as sap through a vine.

Increased blood flow and hormonal changes can cause swelling in your nasal passages which can lead to congestion, snoring, and even an increase in nose - bleeds.

I changed my sleeping position in favor of one that was less comfortable, but better for blood flow.

Blood flow to these organs is minimal until the baby takes a first breath, at which time huge changes begin in the organisation of the circulatory system.

A woman with small breasts is more likely to notice a change in size sooner, but all women may notice that the veins across the breasts become much more pronounced due to increased blood flow during pregnancy.

This, along with changes in brain waves in visual regions and an increased blood flow in that area, correlated with reports of hallucinations.

Spaceflight Associated Neuro - ocular Syndrome, or SANS, is hypothesized to be caused by blood flow toward the head due to lack of gravity, resulting in changes to eye structure and possibly vision changes.

Andrew Newberg, a neuroscientist and director of research at the Marcus Institute of Integrative Health at Thomas Jefferson University in Pennsylvania, headed a small, preliminary study that used SPECT to measure changes in the cerebral blood flow of three Muslims during prayer.

With PET scans and functional MRI, we can observe fluctuations in brain activity by measuring changes in blood flow and levels of nutrients.

As the heart starts pumping a primitive blood - like fluid around the body of an embryo, the change in pressure from the flowing liquid is the cue for cells lining the aorta to change first into blood stem cells, then into all blood - cell types in the body.

Specializing in research on modafinil, Minzenberg has captured the drug in action through functional MRI (fMRI) scans, which map brain activity through changes in blood flow and oxygenation as subjects engage in particular mental processes.

In previous studies, the UCLA researchers had seen differences in heart rate and blood brain flow during blood pressure changes in men and women with obstructive sleep apnea and wanted to see if cardiovascular responses in brain areas were different in healthy men and womeIn previous studies, the UCLA researchers had seen differences in heart rate and blood brain flow during blood pressure changes in men and women with obstructive sleep apnea and wanted to see if cardiovascular responses in brain areas were different in healthy men and womein heart rate and blood brain flow during blood pressure changes in men and women with obstructive sleep apnea and wanted to see if cardiovascular responses in brain areas were different in healthy men and womein men and women with obstructive sleep apnea and wanted to see if cardiovascular responses in brain areas were different in healthy men and womein brain areas were different in healthy men and womein healthy men and women.

Arguably the most convenient and least invasive way of doing that is through functional magnetic resonance imaging, or fMRI — a technique that measures changes in blood flow and blood oxygen levels in the brain, thereby showing which parts of the brain are activated when people perform various tasks.

Dr. Aron and colleagues based their study's conclusions on a neuroimaging study using functional magnetic resonance imaging (fMRI) scanning that measures brain activity by detecting changes in blood flow.

Using a functional MRI (fMRI) scanner, which detects changes in blood - flow patterns, the scientists monitored what was happening inside subjects» brains.

The images enable the researchers to look at blood flow in the breasts, see how the vasculature changes, and how the blood interacts with the tumor.

In contrast to clinical manifestation, the concussed players demonstrated a significant blood flow decrease at eight days relative to 24 hours post-injury, while the non-concussed players had no change in cerebral blood flow between the two time pointIn contrast to clinical manifestation, the concussed players demonstrated a significant blood flow decrease at eight days relative to 24 hours post-injury, while the non-concussed players had no change in cerebral blood flow between the two time pointin cerebral blood flow between the two time points.

The researchers also measured the activity of participants» brains with a tool called near - infrared spectroscopy, which measures changes in blood flow to particular areas of the brain.

It measures blood flow to the brain by sending light signals from sensors mounted in a 3 - pound headcap, then producing images of blood oxygen changes — representing brain activity — by recording the absorption of light at different colors.

Until now, many scientists believed that blood flow within the brain was solely controlled by changes in the diameter of arterioles, blood vessels that branch out from arteries into smaller capillaries.

Scientists already employ fMRI, which uses changes in blood flow as a proxy for brain activity, to scan the brains of restrained monkeys, but Berns wanted to train dogs to willingly enter the machine and learn simple things, such as associating a hand signal with a reward of a hot dog, all the while staying still enough to collect interpretable brain scans.

Changes in blood flow pattern, such as from plaque build - up in the arteries, initiate a cascade of conflicting signals.

The new research also gives insight into the mechanisms underlying the use of functional magnetic resonance imaging to detect blood flow changes in the brain.

The results of the study suggest close interaction between the neck and brain, resulting in changes in blood flow.

This study is the first to demonstrate the importance of the heme oxygenase system in responding to changes in blood flow pattern and the possibility of using it to treat cardiovascular diseases, the researchers wrote.

This is tricky to measure, so it is inferred from things like changes in blood flow.

But when Donna approached Cephos of Tyngsboro, Massachusetts, for an fMRI scan, which picks up changes in blood flow and oxygenation in the brain,...

«Using this method we are able to see a change in the blood flow as early as four weeks after treatment.

The fMRI scanner tracks the change in blood flow to the amygdala.

«CT perfusion is honing into the change in blood flow to the tumour before and after treatment,» said Ting - Yim Lee, professor at Western University's Schulich School of Medicine & Dentistry, scientist at Lawson Health Research Institute, and a medical physicist at St. Joseph's Health Care London.

Like platelets, clumps of the particles flow freely in the blood and gravitate toward blocked vessels by sensing a change in blood flow.

He used functional magnetic resonance imaging (fMRI), a means of measuring brain activity by detecting blood flow changes inside the brain, to measure differences in the strengths of communications between brain regions.

As in fMRI, scientists use these changes in blood flow to approximate electrical activity in neurons.

The fast fMRI was able to detect the subtle and very rapid oscillations in cerebral blood flow in the brain's visual cortex as the volunteers observed the changing pattern.

For the first time, using sophisticated tools to measure skin color, blood flow, and temperature, researchers found that patients on the drug who had a very rapid onset of flushing — redness, pain, swelling, and heat to the face — rated the experience far more harshly than patients whose skin changed gradually, even to the point of extreme redness or change in temperature over time.

At roughly 100 minutes after each treatment, the team began testing brain activity in participants at rest with their eyes closed, first using a form of functional magnetic resonance imaging (fMRI) called arterial spin labeling to follow blood flow changes in the brain.

Brain response was gauged by functional MRI, which measures changes in blood flow as a proxy for neural activity.

For example, the flow conditions would change and the protein corona would be different in a patient with different blood pressure troubles as compared to a healthy person.

NIRSIT is a device based on the near - infrared spectroscopy principle, which (a) utilizes light to detect hemodynamic changes in the cerebral blood flow and (b) visualizes brain activation regions in the prefrontal area of the brain in real time.

PET, fMRI and NIRSI can measure localized changes in cerebral blood flow related to neural activity.

When two copies of the altered hemoglobin gene are present, they cause the shape of the hemoglobin to change so much that the «sickled» blood cells don't flow freely in the blood vessels, causing excruciating pain.

I am proposing a demanding criterion: that you be able to detect abnormalities in patients beforehand by such brain - imaging techniques as functional MRI [which measures blood flow in the brain], and then use imaging to see whether or not there is a change in those markers for the disease as the therapy progresses.

Thermal Camera looks for slight temperature fluctuations on the face due to changes in blood flow to the brain.

This inflammation is important in the normal healing process, affecting tissue growth and blood flow changes that allow the tissue to heal; when the inflammation subsides, skin cells start growing to cover the wound and help the tissue knit together.

Neuroimaging technologies are revealing changes in blood flow to areas of the brain, indicating more activity.

Spence and colleagues use functional Magnetic Resonance Imaging (fMRI) technology to determine whether someone is fibbing by tracing blood flow to certain areas of the brain, which indicates changes in neuronal activity at the synapses (gaps between the neurons).

To study how music preferences might affect functional brain connectivity — the interactions among separate areas of the brain — Burdette and his fellow investigators used functional magnetic resonance imaging (fMRI), which depicts brain activity by detecting changes in blood flow.

Using an optical fiber implanted in that region, the researchers were able to stimulate the primary motor cortex near where the stroke had occurred, and then monitor biochemical changes and blood flow there as well as in other brain areas with which this region was in communication.