Sentences with phrase «of changes in blood flow»

Not exact matches

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.

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.

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.

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.

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.

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.

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

«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.

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.

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.

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.

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.

Additional skepticism arises from knowing that fMRI measures blood - flow change, not neuronal activity, that the colors are artificially added in order to see the blood - flow differences and that those images are not any one person's brain but are instead a statistical compilation of many subjects» brains in the experiment.

An approach called functional magnetic resonance imaging (fMRI), for example, records changes in blood flow that occur when a spark of activity passes through a particular brain region.

The advocated approach utilizes subject - specific data - based models of cerebral hemodynamics to quantify the dynamic effects of resting - state changes in arterial blood pressure and end - tidal CO2 (the putative inputs) upon cerebral blood flow velocity

They may contribute to the hardening of arteries (atherosclerosis) by increasing calcium levels in the blood, or they may cause changes to blood flow.

The researchers investigated changes to arteries as well as blood flow after forty five minutes of moderate intensity resistance exercise making use of equipment like that normally used in fitness centers.

In their report they found that essential oils cause a positive emotional response supported by the chemical change of an individual's brain and increase in blood floIn their report they found that essential oils cause a positive emotional response supported by the chemical change of an individual's brain and increase in blood floin blood flow.

MRT uses a patented combination of flow cytometry and proprietary impedance technology to measure subtle volumetric changes in white blood cell populations simultaneously.

In older people blood flow does not increase following insulin or carbohydrate administration.7 Changes in blood flow are a result of signaling molecules that stimulate either vasodilation or vasoconstrictioIn older people blood flow does not increase following insulin or carbohydrate administration.7 Changes in blood flow are a result of signaling molecules that stimulate either vasodilation or vasoconstrictioin blood flow are a result of signaling molecules that stimulate either vasodilation or vasoconstriction.

The proposed mechanism of action via which magnets might improve recovery include increased blood flow, changes in the migration of calcium ions, alteration of pH balance, changes in hormone production, and an alteration of enzyme activity (20).

The effects of neck - lock include: «helps to bring an internal focus for the practitioner «sealing the energy that is created in the upper brain stem area «stabilizes blood pressure that can change due to exercise and breathing «acts as a safety valve, regulating the pressure and reducing dizziness «creates nerve reflexes that balance / stimulate the thyroid and parathyroid glands «allows the flow of energy to remain natural and calming to the heart «Moon center energy is contained in the chin «increases the concentration of secretions from the pituitary gland «allows a new interrelatedness between the glands How do you know?

Changes in blood flow during high - intensity exercise place strong demands on the immune system and redistribution of white blood cells.

Poor blood flow or changes in the shape of your feet or toes may also cause problems.

Autoregulation of renal blood flow and glomerular filtration rate in neonatal puppies appear to be relatively inefficient in response to rapid changes in systemic arterial blood pressure.7 In adult dogs, the renin — angiotensin system is an important regulatory mechanism; however, in neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of agin neonatal puppies appear to be relatively inefficient in response to rapid changes in systemic arterial blood pressure.7 In adult dogs, the renin — angiotensin system is an important regulatory mechanism; however, in neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of agin response to rapid changes in systemic arterial blood pressure.7 In adult dogs, the renin — angiotensin system is an important regulatory mechanism; however, in neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of agin systemic arterial blood pressure.7 In adult dogs, the renin — angiotensin system is an important regulatory mechanism; however, in neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of agIn adult dogs, the renin — angiotensin system is an important regulatory mechanism; however, in neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of agin neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of age.

Here, inflammatory changes result in tissue damage of the arteries while continuing proliferation of the heartworm can impede the efficient flow of blood.

The veterinarian will be looking for changes in the lung sounds, respiration rates or quality, heart sounds (both rhythm and blood flow sounds), chest compressibility, signs of fluid accumulation in the chest or abdomen, and the size of such organs as the liver.

These vibrations or murmurs are produced due to a disturbance in the blood flow through your pet's heart, usually caused by damage to the heart valves or a change in the health of the heart valves.

In a similar fashion to the changes to the left atrium with certain left - sided heart diseases, diseases that primarily affect the right side of the heart (e.g. primary pulmonary hypertension, heartworm disease, tricuspid valve dysplasia, pulmonic stenosis) may reduce forward flow of blood into the pulmonary circulation and, again depending on severity, may lead to a build - up of volume and / or pressure within the right atrium which will also try to enlarge to compensate.

This brave, somewhat - new Monster Hunter 4 Ultimate world might not change the minds of those who gave up on the hunt in ages gone by, but for those with real Monster Hunter's blood flowing through their veins, it's truly an Ultimate experience.

* Cerebrovascular Accident (Stroke, CVA, Transient Ischemic Attack, TIA): A disruption of blood flow to the brain resulting in neurologic changes, either permanent (CVA) or temporary (TIA).

It reveals tiny changes - from the rippling of a woman's stomach as a baby moves inside, the actual way the blood flows in the human body, how fast your heart is beating, to the wobbly motion of your eyeballs inside of your skull, vibrations of individual guitar strings.

Argawal 2000 investigated the effect of different massage oils on physical growth and on physiological changes in blood flow and vessel diameter.