Facial nerve stimulation boosts memory performance via improved neural signalling
Non-invasive facial nerve zaps show early signals of enhancing brain connectivity and memory. Larger controlled trials are needed to confirm durability and rule out placebo. This fits a pattern of peripheral stimulation moving from epilepsy toward cognitive enhancement.
Researchers applied transcutaneous stimulation targeting the trigeminal or auricular vagus pathways in a small cohort, measuring changes in EEG coherence and performance on word-list or associative memory tasks before and after sessions. The approach builds on prior vagus nerve work but focuses on facial access for potentially safer, non-invasive delivery. Evidence remains preliminary because the report lacks peer-reviewed details on blinding, sample size, and effect magnitude.
Independent lab: Replication attempt with n>60 and pre-registered endpoints will show <15% memory gain at 4-week follow-up.
Sources (2)
- [1]Primary Source(https://www.newscientist.com/article/2588180-zapping-the-face-could-boost-brain-signalling-and-memory/)
- [2]Supporting Source(https://pubmed.ncbi.nlm.nih.gov/34752735/)