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Related Experiment Video

Updated: Jun 30, 2026

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

Control of predictive error correction during a saccadic double-step task.

K M Sharika¹, Arjun Ramakrishnan, Aditya Murthy

¹National Brain Research Centre, Near NSG Campus, Nainwal More, Manesar - 122 050, Haryana, India.

Journal of Neurophysiology

|September 26, 2008

Summary

This summary is machine-generated.

Predictive error correction happens concurrently with movement inhibition. This suggests that the brain plans corrections even before an error fully occurs, aiding goal-directed behaviors.

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Area of Science:

Neuroscience
Cognitive Psychology
Oculomotor Research

Background:

Understanding the control mechanisms of error correction is crucial for cognitive neuroscience.
The saccadic double-step task is a common paradigm for studying gaze control and error correction.

Purpose of the Study:

To investigate the temporal dynamics of error correction during oculomotor tasks.
To determine if error correction planning occurs in parallel with movement inhibition.

Main Methods:

Utilized a modified saccadic double-step task with a triple-step condition to introduce target displacement during error correction.
Employed the LATER (Leaky Accumulator Model) to analyze reaction times and estimate the onset of corrective saccades.
Measured corrective saccade initiation in response to target perturbations.

Main Results:

Corrective saccades were observed even when target steps occurred during the error phase.
The LATER model indicated that motor correction could be initiated before the error began.
Decreased target step delay led to delayed motor correction, suggesting interference between concurrent motor programs.

Conclusions:

Predictive error correction can occur in parallel with the inhibition of unwanted movements.
The oculomotor system demonstrates concurrent planning of inhibition and correction.
These findings shed light on the interaction between inhibitory control and error correction in goal-directed behaviors.