Skip to main content

BRIEF RESEARCH REPORT article

Front. Syst. Neurosci.
Volume 18 - 2024 | doi: 10.3389/fnsys.2024.1478019

Modelling Saccade Reaction Time in Marmosets: The Contribution of Earlier Visual Response and Variable Inhibition

Provisionally accepted
Wajd Amly Wajd Amly 1,2Chih-Yang Chen Chih-Yang Chen 1,2Tadashi Isa Tadashi Isa 1,2,3*
  • 1 Department of Neuroscience, Faculty of Medicine, Kyoto University, Kyoto, Japan
  • 2 Institute for the Advanced Study of Human Biology, Faculty of Medicine, Kyoto University, Kyoto, Kyōto, Japan
  • 3 Human Brain Research Center, Faculty of Medicine, Kyoto University, Kyoto, Kyōto, Japan

The final, formatted version of the article will be published soon.

    Marmosets are expected to serve as a valuable model for studying the primate visuomotor system due to their similar oculomotor behaviours to humans and macaques. Despite these similarities, differences exist; challenges in training marmosets on tasks requiring suppression of unwanted saccades, having consistently shorter, yet more variable saccade reaction times (SRT) compared to humans and macaques. This study investigates whether the short and variable SRT in marmosets is related to differences in visual signal transduction and variability in inhibitory control. We refine a computational SRT model based on (Coe et al., 2019), adjusting parameters to better capture the marmoset SRT distribution in a gap saccade task. Our findings indicate that visual information processing is faster in marmosets, and that saccadic inhibition is more variable compared to other species.

    Keywords: Callithrix jacchus 1, gap saccade task 2, neural field model 3, Reaction time 4, inhibition 5, visual response 6

    Received: 09 Aug 2024; Accepted: 07 Oct 2024.

    Copyright: © 2024 Amly, Chen and Isa. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Tadashi Isa, Department of Neuroscience, Faculty of Medicine, Kyoto University, Kyoto, Japan

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.