The new design allows an MRI machine to scan two brains at once, potentially paving the way to future research on how different brains respond to stimuli and to each other.
Usually, magnets and radio frequency coils record how hydrogen atoms in the body respond to magnetic fields and how the flow of oxygenated blood changes as a result of brain activity. Trying to scan two brains at the same time results in a fuzzy image.
Lee altered the design by fitting a pair of coils into the machine so that each participant’s head fits into a loop.
Lee also placed a window between the coils so that participants could see one another.
Lee tested the machine by recording brain activity as couples faced one another and blinked in unison. Lee also asked couples to embrace and release one another repeatedly.
In both of these experiments, synchronized brain activity was observed. Lee announced these results last November at the Society for Neuroscience conference in San Diego, California.
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