Breakthrough in Smoking Cessation: Non-Invasive Brain Stimulation Shows Promise

A recent American study has made a significant breakthrough in the fight against smoking addiction, thanks to a technology that targets specific brain circuits. Researchers from the University of South Carolina Medical School explain that this non-invasive magnetic stimulation technique could be a key to breaking the cycle of dependence. The study's findings were published this Monday in the Journal of Psychiatric Research.

Understanding the Brain's Mechanisms

The study focused on understanding the mechanisms that restore balance between two fundamental brain systems: the reward and desire circuit, and the control and decision-making circuit. To achieve this, scientists used repetitive transcranial magnetic stimulation (rTMS), a method that uses precise magnetic impulses to stimulate specific brain areas linked to nicotine addiction, without the need for surgery or medication.

How the Technology Works

In practice, the technology sends targeted impulses to the cerebral cortex, particularly to the lateral prefrontal cortex, responsible for self-control. These stimulations help activate or modulate neuronal activity to strengthen the smoker's ability to regulate their cravings in the face of the reward system stimulated by cigarettes.

The Experiment

The experiment involved a group of adult smokers who underwent 15 treatment sessions over a three-week period. Using brain imaging to locate the areas to be stimulated, the results showed a notable effectiveness. Participants who received stimulation of the self-control area reduced their cigarette consumption by over 11 per day. This reduction was accompanied by a significant decrease in the desire to smoke and carbon monoxide levels in the body, a key biological indicator of withdrawal.

Long-Term Effects

These positive effects were maintained for at least a month after the end of the protocol. According to the researchers, these results open the door to larger-scale trials. Ultimately, brain stimulation could become a complementary therapeutic tool to help individuals resistant to traditional treatments achieve a definitive quit.