if truthfulness or lying could be induced, by targeting one of these associated brain regions directly, it could provide even deeper insight into that region’s role in the process of deceit.
Volunteer test participants were subjected to something called “transcranial magnetic stimulation,” or TMS for short. TMS uses electromagnetic induction to generate a magnetic field capable of polarizing specific neurons, effectively increasing or dampening activity in specific regions of the brain.
TMS was used to suppress activity in the dorsolateral prefrontal cortex (DLPFC), an area of the brain shown to be related to deceptive behavior.
Test subjects were then shown a colored disc on a computer screen. Volunteers were given the option to either lie about the color of the disc, or answer truthfully. The results were nothing short of incredible. According to the researchers:
We show that when subjects can name the colour of presented objects correctly or incorrectly at their free will, the tendency to stick to truthful answers can be manipulated by stimulation targeted at dorsolateral prefrontal cortex. Right hemisphere stimulation decreases lying, left hemisphere stimulation increases lying. Spontaneous choice to lie more or less can be influenced by brain stimulation.
In other words, not only could the researchers decrease the test participants’ tendency to lie spontaneously, they could actually increase it as well; suppression of the left DLPFC led to volunteers giving significantly fewer truthful answers, while suppressing the right DLPFC had the opposite effect.
mind control. shit just got real. if i come at you with a bunch of magnets…don’t be afraid ;)