Sentences with phrase «measuring changes in blood flow»

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

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.

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.

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

Then the researchers measured changes in blood flow to the hypothalamus, which plays a key role in regulating hunger.

Not exact matches

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.

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.

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.

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

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

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.

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.

Their brain activity was then compared using functional magnetic resonance imaging (fMRI), a technology that measures neural firing through changes in 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.