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Neurosci."],"accepted":{"date-parts":[[2024,9,24]]},"published-print":{"date-parts":[[2024,11,13]]},"abstract":"<jats:p>The sudden appearance of a visual distractor shortly before saccade initiation can capture spatial attention and modulate the saccade trajectory in spite of the ongoing execution of the initial plan to shift gaze straight to the saccade target. To elucidate the neural correlates underlying these curved saccades, we recorded from single neurons in the frontal eye field of two male rhesus monkeys shifting gaze to a target while a distractor with the same eccentricity appeared either left or right of the target at various delays after target presentation. We found that the population level of presaccadic activity of neurons representing the distractor location encoded the direction of the saccade trajectory. Stronger activity occurred when saccades curved toward the distractor, and weaker when saccades curved away. This relationship held whether the distractor was ipsilateral or contralateral to the recorded neurons. Meanwhile, visually responsive neurons showed asymmetrical patterns of excitatory responses that varied with the location of the distractor and the duration of distractor processing relating to attentional capture and distractor inhibition. During earlier distractor processing, neurons encoded curvature toward the distractor. During later distractor processing, neurons encoded curvature away from the distractor. This was observed when saccades curved away from distractors contralateral to the recording site and when saccades curved toward distractors ipsilateral to the recording site. These findings indicate that saccadic motor planning involves dynamic push\u2013pull hemispheric interactions producing attraction or repulsion for potential but unselected saccade targets.<\/jats:p>","DOI":"10.1523\/jneurosci.0635-24.2024","type":"journal-article","created":{"date-parts":[[2024,10,1]],"date-time":"2024-10-01T13:50:19Z","timestamp":1727790619000},"page":"e0635242024","source":"Crossref","is-referenced-by-count":6,"title":["Dynamics of Saccade Trajectory Modulation by Distractors: Neural Activity Patterns in the Frontal Eye Field"],"prefix":"10.1523","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0500-4137","authenticated-orcid":false,"given":"Hamidreza","family":"Ramezanpour","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0326-7160","authenticated-orcid":false,"given":"Devin 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