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Related Experiment Video

Updated: Feb 17, 2026

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

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Blink associated resetting eye movements (BARMs) are functionally complementary to microsaccades in correcting for

Mohammad Farhan Khazali¹, Joern K Pomper², Peter Thier³

¹Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, Tuebingen, Germany. mohammad.khazali@student.uni-tuebingen.de.

Scientific Reports

|December 6, 2017

Summary

Blinks correct eye position deviations via blink-associated resetting eye movements (BARMs). Fixational BARMs are distinct from microsaccades, offering more efficient error compensation and broader resetting zones for optimal eye positioning.

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Area of Science:

Ophthalmology
Neuroscience
Vision Science

Background:

Blinks protect the eye and correct torsional deviations using blink-associated resetting eye movements (BARMs).
The precise role of BARMs in horizontal and vertical dimensions (fixational BARMs) relative to microsaccades has been unclear.

Purpose of the Study:

To investigate whether fixational BARMs are functionally distinct from microsaccades.
To elucidate the complementary roles of BARMs and microsaccades in maintaining visual stability.

Main Methods:

Analysis of eye movements during blinks.
Comparison of the characteristics of fixational BARMs and microsaccades.
Examination of eye position control in different dimensions.

Main Results:

Fixational BARMs compensate for larger eye position errors more efficiently than microsaccades.
Fixational BARMs are more likely to occur at eccentric eye positions.
BARMs reset the eyes into a broader position zone compared to microsaccades.
Fixational BARMs operate within a retina-centric frame.

Conclusions:

Fixational BARMs are functionally distinct from and complementary to microsaccades.
BARMs help maintain the eyes within an optimal working range for microsaccades to ensure high visual acuity.
These findings clarify the distinct contributions of different eye movements to visual stability.