The effects of transcutaneous auricular vagal nerve stimulation on cognition in healthy individuals: A meta-analysis
| Autor: | Tania Leeder, Kristin J. Heaton, Caitlin Ridgewell, William H. Neumeier, Audrey Hildebrandt, Jessica Couse |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Vagus Nerve Stimulation Vagal nerve Stimulation Cognition Affect (psychology) Random effects model Healthy Volunteers Vagus nerve Executive Function Neuropsychology and Physiological Psychology Physical medicine and rehabilitation Meta-analysis medicine Transcutaneous Electric Nerve Stimulation Humans Effects of sleep deprivation on cognitive performance Ear External Psychology Psychomotor Performance |
| Zdroj: | Neuropsychology. 35(4) |
| ISSN: | 1931-1559 |
| Popis: | OBJECTIVE Transcutaneous auricular vagal nerve stimulation (taVNS) may benefit cognition in healthy adults but may differentially affect specific domains of cognitive function. Currently, optimal stimulation parameters of taVNS have yet to be identified and the overall effectiveness of this approach remains unclear. METHOD A literature review and random effects meta-analysis evaluated the effects of taVNS on cognitive performance outcomes across domains of function and outcome metrics (accuracy and response times). Subgroup meta-analyses and meta-regression models explored the moderating effects of stimulation parameters on performance outcomes. RESULTS Meta-analyses on 19 eligible studies indicated a weighted effect size of 0.21 for the effect of taVNS on overall cognitive performance, with significant effects on measures of executive function and measures of accuracy. Parameter meta-analyses indicated that stimulation site was most associated with improvements in executive function (gtragus = 2.39, gcymba concha = 0.48; Q = 39.84, p < .0001; β = -2.33, p = .03). CONCLUSIONS taVNS may improve cognition, particularly executive function, and stimulation parameters may differentially influence outcomes. Continued research into the effects of taVNS as well as optimal stimulation parameters will be beneficial. (PsycInfo Database Record (c) 2021 APA, all rights reserved). |
| Databáze: | OpenAIRE |
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