It's just not direct experimental evidence within the scope of current experiments. (discovermagazine.com)
Find out more: Check your local university's website, or contact its psychology department to find out about current experiments and join its subject pool. (moneysavingexpert.com)
But in current experiments, the researchers are getting comparable results using only four electrodes along one jaw, which should lead to a less obtrusive wearable device. (sciencedaily.com)