Saccade adaptation is unhampered by distractors

Area of Science:

• Neuroscience
• Ophthalmology
• Cognitive Science

Background:

• Saccade adaptation is a well-studied motor learning process.
• Typically, adaptation is induced by visual target displacement during saccades.
• Previous research suggests post-saccadic target location relative to the fovea drives adaptation.

Purpose of the Study:

• To investigate if saccade adaptation occurs when a distractor is present with the target.
• To determine whether the target or distractor controls adaptation in a multi-object display.

Main Methods:

• Three experiments were conducted using a saccade adaptation paradigm.
• Participants

Main Results:

• Adaptation magnitude (decrease and increase) and recovery were modulated by the target's post-saccadic position.
• The distractor's post-saccadic location did not influence saccade adaptation.
• Target selection was identified as a critical factor in saccade adaptation.

Conclusions:

• Saccade adaptation is primarily controlled by the visually selected target, not distractors.
• This finding highlights the role of attentional selection in sensorimotor adaptation.
• Future research should explore the neural mechanisms underlying target-driven saccade adaptation.