A Study of Transcranial Electrical Stimulation (tES) Paired With Structured Learning Protocols for Accelerated Skill Acquisition: Sub-Protocol A (Adult Language Learning)
General Neuro Inc.
Summary
This study investigates whether transcranial electrical stimulation (tES) delivered during structured language-learning sessions affects the rate and quality of second-language acquisition in adults. Adults who are learning or planning to learn a new language are randomly assigned in equal numbers to receive either active stimulation or sham (placebo) stimulation while completing structured language-learning content. Participants wear a non-invasive transcranial electrical stimulation headset that delivers a low-level electrical current through electrodes resting on the scalp, targeting cortical regions associated with language. Sessions typically last 20 to 30 minutes and may be completed at home or in person at a participating language program. Language proficiency is measured with a standardized assessment before and after the intervention period, with additional app-derived performance metrics and participant-reported measures collected throughout. A follow-up assessment may be conducted up to 12 months after the intervention ends to evaluate whether any observed effects persist. In this study the device is applied as a learning aid in healthy adults. It is not used to diagnose, treat, cure, or prevent any disease.
Description
The study is a prospective, randomized, double-blind, sham-controlled investigation. Participants are randomized 1:1 to active or sham stimulation, with stratification by site or cohort as applicable. Neither participants nor the research team conducting outcome assessments are aware of assignment during data collection. Stimulation assignment is held by the Sub-Investigator and is not disclosed to the Principal Investigator until all outcome data are collected and locked and primary analyses are finalized. Sessions may be delivered by decentralized at-home administration, on-site administrat…