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Related Experiment Video

Updated: Oct 15, 2025

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

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

Published on: March 18, 2019

Eye Blink-Associated Saccades.

Angela M Richmond¹, Blake D Sarrazin², Junaid H Siddiqui³

¹Neurology, University of Missouri, Columbia, USA.

|October 25, 2021

Summary

This study reports a rare case of abnormal eye movements during blinking in a stroke patient. These blink-associated saccades suggest disrupted neural pathways in the brain's eye movement network.

Keywords:

drug-resistant epilepsy eye blink eye movements middle cerebral artery infarction movement disorders and tremors saccadic eye movement saccadic intrusion temporal lobectomy

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Related Experiment Videos

Last Updated: Oct 15, 2025

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

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Published on: March 18, 2019

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Published on: September 1, 2018

Recording Horizontal Saccade Performances Accurately in Neurological Patients Using Electro-oculogram

Recording Horizontal Saccade Performances Accurately in Neurological Patients Using Electro-oculogram

Published on: March 13, 2018

Area of Science:

Neuroscience
Ophthalmology
Neurology

Background:

Saccades and blinks are fundamental human eye movements controlled by complex neural networks.
Disruptions in these networks can alter saccadic parameters and eye movement control.
Understanding these networks is crucial for diagnosing and treating neurological disorders affecting vision.

Observation:

A patient with a history of stroke presented with unusual conjugate eye movements to the left during each blink.
These abnormal eye movements persisted even when visual fixation was removed.
Brain imaging revealed evidence of a right middle cerebral artery (MCA) territory stroke.

Findings:

The observed blink-associated saccades are a rare phenomenon, with only one prior reported case.
The patient's stroke affected areas involved in motor control and eye movement.
The findings suggest a potential link between stroke-induced brain injury and abnormal saccadic activity during blinking.

Implications:

This case highlights the intricate relationship between blinking and saccadic eye movements.
It suggests that specific brain injuries can lead to novel and rare oculomotor abnormalities.
Further research is needed to elucidate the precise neural mechanisms underlying these blink-saccadic phenomena.