HD/HF-tRNS to right DLPFC enhances fluid intelligence and cortical excitability

• High-definition high-frequency transcranial random noise stimulation (HD/HF-tRNS) was delivered offline to the right dorsolateral prefrontal cortex (DLPFC).¹
• Twenty-six healthy adults completed a double-blind, sham-controlled, between-groups experiment.¹
• Active HD/HF-tRNS improved performance on Raven’s Progressive Matrices, a benchmark of fluid intelligence and demanding reasoning.¹
• Stimulation also increased cortical excitability relative to sham.¹
• Results were published in the Journal of Neural Engineering and framed as relevant to closed-loop neuromodulation and cognitive BCIs.^{1 1}

Footnotes

1. https://iopscience.iop.org/article/10.1088/1741-2552/ae7d58 ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶