But studies using fMRI (functional magnetic resonance imaging) can show what's happening in the brain.
While the subjects were making choices, their brain activity was being monitored using an fMRI.
People in an fMRI scanner watched a half-hour-long sequence combining very short video clips of everyday scenes.
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The big remaining question for the scientists is whether these behavioral differences are detectable in an fMRI machine.
In typical fMRI studies, study participants are told when to relax, say, or when to sing to themselves.
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Earlier studies used fMRI imaging to see which parts of the brain are active when we generate ideas.
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The fMRI results suggest he is not brain dead, because areas above the brain stem are showing activity.
Replacing fMRI with a slightly less accurate technique called near-infra-red spectroscopy produced two further successful trials involving a different volunteer.
In the third session the music alternated between enjoyed and neutral, while a functional magnetic resonance imaging, or fMRI scan was made.
The participants were subjected to questionnaires to identify their moods, and a third of the group was imaged on an fMRI scanner.
In the name of science, three members of Dr Gallant's team each endured two sessions of fMRI while watching assorted film trailers.
The researchers used fMRI (functional magnetic resonance imaging) scans to monitor brain activity in 15 people with autistic spectrum disorders and 15 without.
Seventeen participants who had little or no music training took part in this study which, like Salimpoor's, is small, but typical for an fMRI study.
In another study, Looser, Wheatley, and Swaroop Guntupalli, also of Dartmouth, conducted fMRI scans on 30 participants for an in-depth look at how brains evaluate faces.
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This is where all the neuro-skeptics started groaning because the insular cortex lights up in a third of fMRI studies, and can also highlight feelings like disgust.
Saygin and colleagues published a study last year using functional magnetic resonance imagining (fMRI), looking at what's happening in the brain that might explain the uncanny valley phenomenon.
The researchers chose to experiment on themselves, rather than calling for volunteers, because the experiment required them to sit perfectly still in an fMRI machine for long periods.
In a recent study by the developmental psychologist Laurence Steinberg at Temple University, teenagers did a simulated high-risk driving task while they were lying in an fMRI brain-imaging machine.
Using a technique called functional magnetic resonance imaging (fMRI), the researchers were able to record the brain's activity in response to internal and external stimuli such as eating and drinking.
In the second part of the study, participants were again asked to estimate the probability of each event happening to them, but this time they were not in the fMRI scanner.
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She adds, though, that we need to keep in mind that advertisers have been successfully controlling our brains, to some extent, since long before the existence of EEG or fMRI technology.
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Second-to-second changes in its activity might, though, be expected to be correlated with changes in the amygdalas, because of its role in regulating them. fMRI allows such correlations to be measured.
He was using a functional magnetic-resonance imaging (fMRI) machine.
In a 2009 study, scientists there used fMRI (Functional MRI) imaging to measure brain activity in regions of emotional processing in the brain before and after injecting Botox to suppress smiling muscles.
The professor of Psychology at University College London, Rachel Blass, argues that it's quite wrong to dismiss people's feelings or emotions simply because these don't show up well in an fMRI scan.
While fMRI tells where in the brain activity occurs, EEG is better for looking at when -- that is, when in viewing agents with different degrees of humanness do people's brain patterns change.
For the new research, published in the Archives of General Psychiatry, David Tolin of the Institute of Living in Hartford, Connecticut, recruited 107 people for brain scans using functional magnetic resonance imaging (fMRI).
If the same fMRI tests are repeated six months and nine months from now to compare activity levels, that would provide some indication of whether Sharon is headed in a positive direction, Black said.
And so, last year, Mischel, who is now a professor at Columbia, and a team of collaborators began asking the original Bing subjects to travel to Stanford for a few days of experiments in an fMRI machine.
As Sharon has been in a coma for seven years, the fMRI evidence is positive, but it would be unusual for him to start talking, for example, given how long he has stayed in this state, Black said.
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