Modulation of Working Memory by an Alternating Magnetic Field in Humans
Modulation of Working Memory by an Alternating Magnetic Field in Humans
Many studies have examined the effects of transcranial alternating current stimulation (tACS) on working memory, showing that low-intensity stimulation can enhance cognitive performance by modulating neuronal activity, particularly in the frontal cortex and the parietal lobule. Specific frequencies, such as the gamma frequency, have demonstrated beneficial effects on memory under high cognitive load. However, tACS has technical limitations, including uncomfortable sensations and uneven diffusion of electrical currents within the brain, which restrict its effectiveness in deeper brain regions.
Transcranial alternating magnetic stimulation (tAMS) is emerging as a potentially more precise and comfortable method. Unlike tACS, tAMS uses magnetic fields that penetrate more deeply into the brain and provide a more homogeneous distribution of induced electrical currents, allowing for more targeted stimulation. This study compares the effects of tACS and tAMS on working memory, with the hypothesis that tAMS will offer additional advantages in terms of comfort and efficacy. Cognitive performance will be assessed using working memory tasks, along with EEG signals to analyze neuronal modulations. The objective is to demonstrate that tAMS more effectively reaches deep brain regions and improves cognitive functions.
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