Related Experiment Video
Updated: May 18, 2026
Using Electroencephalography Measurements and High-quality Video Recording for Analyzing Visual Perception of Media Content
Published on: May 26, 2018
Experimental video analysis of eye blink reflex in a primate model
Andrei Borin1, Luiz Eugênio Araujo M Mello, Felipe Costa Neiva
1Department of Otorhinolaryngology-Head and Neck Surgery, Universidade Federal de São Paulo, Federal University of São Paulo, São Paulo, Brazil. andreiborin@hotmail.com
Background:
The establishment of reliable methods for functional assessment in experimental models of peripheral nerve regeneration is crucial.
Methods:
We present a straightforward method for video analysis of the eye blink reflex in a model of facial nerve damage in a nonhuman primate (Callithrix sp.).
Results:
Our 6-level dynamic analysis demonstrated good reproducibility between independent observers, as measured by Cohen's kappa index. Our static analysis, which was based on 4 semiautomated metric parameters, showed low correlation during the early stage of facial movement recovery (the first and second weeks), but the correlation was excellent during the later stage of recovery (the third and fourth weeks).
Conclusion:
Altogether, our results establish a viable and readily accessible method with good reproducibility and correlation for the analysis of functional facial nerve recovery in an experimental model and based on video images of the eye blink reflex.
