Participants of the study were asked to recite words such as ‘goo’, ‘scissors’ and ‘par’, which were all found to exhibit very similar waveforms whether uttered or left unspoken. Then, a team of researchers led by the University’s Professor Yamazaki, used an electroencephalogram (EEG) to detect abnormalities related to electrical activity in the participants’ brains.
Neurons in the brain. Via Shutterstock.
The study used sample groups of a dozen men, women and children, comparing the brainwaves of each in the Broca’s area of the brain, which is located in the frontal lobe and is responsible for the production of language.
The groups were asked to recite the three words as cognitive activity was measured – including the activity produced immediately before the word was spoken. Scientists predicted the brains of each participant would emit a signal of ‘readiness