The researchers asked 36 participants, hooked up to ultrasound monitors, to identify the emotion conveyed in dozens of pre-recorded sentences. But what happens when the brain is faced with emotional language? To find out, the researchers used Transcranial Doppler Ultrasonography (ultrasound), an inexpensive, non-invasive and patient-friendly way to measure blood-flow velocity in the brain's left and right middle cerebral arteries - an indicator of activity level because neurons, to work, need blood-borne glucose and oxygen. Their research appears in the January 2003 issue of Neuropsychology, published by the American Psychological Association (APA).Īt Ghent University, Guy Vingerhoets, Ph.D., Celine Berckmoes, M.S., and Nathalie Stroobant, M.S., knew that the left brain is dominant for language, and the right brain is dominant for emotion. By studying blood flow velocity to each side of the brain, Belgian psychologists have opened a window onto the richness and complexity of human emotional communication.
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