Emerging Research Finds Electric Brain Stimulation Can Enhance Mathematical Abilities
Research shows that mild electrical stimulation of the brain can improve math skills, particularly in individuals with weaker neural connections, offering new hope for cognitive enhancement and learning support.
A groundbreaking study published in PLOS Biology on July 2, 2025, reveals that mild electrical stimulation of the brain may significantly improve arithmetic skills, especially in individuals with initially weaker neural connections. Led by neuroscientist Roi Cohen Kadosh from the University of Surrey, the research involved 72 University of Oxford students who underwent brain scans to analyze connectivity between critical regions responsible for cognitive functions.
The study focused on the connectivity between the dorsolateral prefrontal cortex, which manages executive functioning, and the posterior parietal cortex, essential for memory and calculations. Participants solved math problems requiring either calculation or recall. Results showed that stronger connectivity between these regions correlated with better math performance.
The researchers then applied a form of non-invasive brain stimulation called transcranial random noise stimulation (tRNS) using electrode-fitted caps. Notably, this technique proved especially beneficial for lower-performing individuals, with their scores increasing by approximately 25-29%. This stimulation likely boosts neuronal excitability and modulates GABA activity, which helps balance neural activity, effectively compensating for weaker neural wiring in some individuals.
Interestingly, those who already performed well experienced little to no improvement, highlighting the potential of this method to assist individuals who struggle with math abilities. Cohen Kadosh emphasized the ethical considerations of broader application, cautioning against at-home experimentation and highlighting the importance of equitable access to such technologies. The study underscores a promising avenue for enhancing learning and closing cognitive gaps, with potential implications for education and neurological rehabilitation.
The findings suggest that targeted brain stimulation could help unlock human potential and provide new strategies for cognitive enhancement, especially for those with learning difficulties, while also raising important questions about accessibility and ethical use.
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