Experimental Brain Research

, 215:13

Trans-saccadic processing of visual and motor planning during sequential eye movements

Authors

  • Supriya Ray
    • National Brain Research Centre
    • The Smith-Kettlewell Eye Research Institute
  • Neha Bhutani
    • National Brain Research Centre
  • Vishal Kapoor
    • National Brain Research Centre
    • Max Plank Institute for Biological Cybernetics
    • National Brain Research Centre
    • Centre for Neuroscience, Indian Institute of Science
Research Article

DOI: 10.1007/s00221-011-2866-x

Cite this article as:
Ray, S., Bhutani, N., Kapoor, V. et al. Exp Brain Res (2011) 215: 13. doi:10.1007/s00221-011-2866-x

Abstract

How the brain maintains perceptual continuity across eye movements that yield discontinuous snapshots of the world is still poorly understood. In this study, we adapted a framework from the dual-task paradigm, well suited to reveal bottlenecks in mental processing, to study how information is processed across sequential saccades. The pattern of RTs allowed us to distinguish among three forms of trans-saccadic processing (no trans-saccadic processing, trans-saccadic visual processing and trans-saccadic visual processing and saccade planning models). Using a cued double-step saccade task, we show that even though saccade execution is a processing bottleneck, limiting access to incoming visual information, partial visual and motor processing that occur prior to saccade execution is used to guide the next eye movement. These results provide insights into how the oculomotor system is designed to process information across multiple fixations that occur during natural scanning.

Keywords

Concurrent processingEye movementsAttentionSaccadic suppression

Copyright information

© Springer-Verlag 2011