Sentences with phrase «measured blood flow to 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.

In one study, British researchers gave healthy young adults a special, flavanol - rich chocolate, then measured blood flow to their brains using MRI.

Not exact matches

fMRI (Functional Magnetic Resonance Imaging) «is a functional neuroimaging procedure using MRI technology that measures brain activity by detecting changes associated with blood flow,» according to Wikipedia.

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.

The programme included arterial spin labelling, an MRI method to measure blood flow within the brain; resting - state MRI, to assess functional connections within and between brain networks; and MEG, a method to detect brain waves.

Researchers have used magnetic resonance imaging (MRI) scans that measure blood flow in the brain to better understand why people often become aggressive and violent after drinking alcohol.

Lamm and his group recently sought the answer to answer this question by combining measures of electrical activity in the brain (via electroencephalogram) with functional magnetic resonance imaging to show blood flow patterns in 25 participants getting rounds of shocks on their hands.

«We use arterial blood water as a contrast tracer to measure blood flow change, which is highly associated with brain function.»

Imaging scans show the brain shifts its activity (measured by blood flow and oxygenation, indicating which neurons are heavily used at a specific time) from the prefrontal executive control regions to subcortical reactive emotion areas.

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 imaging studies seem so simple and elegant: Hook someone up to a functional MRI (fMRI) machine, which measures blood flow; see which parts of the brain light up; and identify regions associated with love, rejection, Brain imaging studies seem so simple and elegant: Hook someone up to a functional MRI (fMRI) machine, which measures blood flow; see which parts of the brain light up; and identify regions associated with love, rejection, brain light up; and identify regions associated with love, rejection, etc..

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.

The researchers were able to zero in on the Broca's area as well as related brain circuitry specifically linked to speech, using regional cerebral blood flow as a measure of brain activity, since blood flow is typically coupled with 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.

So Stoléru and other scientists have switched to a faster method, functional MRI (fMRI), which monitors the flow of blood to active neurons by measuring levels of oxygen in the brain.

Some at the workshop hope to adapt ultrasound and magnetic resonance imaging techniques now used to study the heart and brain to measure blood flow and oxygenation in the placenta.

The epithet dogs even some functional MRI studies, which seek to link specific thought processes to corresponding regions of the brain by measuring moment - to - moment differences in blood flow.

Neuroscientists zeroed in on it by placing subjects in a positron - emission tomography (PET) scanner to measure blood flow in the brain, then having them look at cards with color rectangles.

The experiments used functional magnetic resonance imaging to measure increased blood flow throughout the brain, a marker of increased neural activity, during a wide range of activities, including finger - tapping, whistling, chewing, drawing, writing, reading, watching a movie and playing video games and memory games.

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.

The researchers measured an increase in blood flow in the brain's prefrontal cortex during all 3 activities, in comparison with rest times where blood flow decreased to normal rates.

Each individual had functional magnetic resonance imaging (fMRI), a method of brain scanning which measures activity in several areas of the brain by blood flow, while playing a card game designed to stimulate reward feelings.

They were given thinking and memory skill tests, as well as ultrasound tests for measuring blood flow volume to the brain throughout the tests.

The researchers used an fMRI machine to measure blood flow to different parts of the brain, and then they had the study participants engage in a variety of activities from crossword puzzles to self - stimulation.