Sentences with phrase «uses changes in blood flow»

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.

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

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.

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.

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

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.

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.

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

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.

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.

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.

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

Functional neuroimaging is most commonly performed using the blood - oxygenation - level - dependent (BOLD) approach, which is sensitive to changes in cerebral blood flow (CBF), cerebral blood volume

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.

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