Monocular channels have a functional role in endogenous orienting

William Saban, Liora Sekely, Raymond M. Klein, Shai Gabay

Research output: Contribution to journalArticlepeer-review


The literature has long emphasized the role of higher cortical structures in endogenous orienting. Based on evolutionary explanation and previous data, we explored the possibility that lower monocular channels may also have a functional role in endogenous orienting of attention. Sensitive behavioral manipulation was used to probe the contribution of monocularly segregated regions in a simple cue – target detection task. A central spatially informative cue, and its ensuing target, were presented to the same or different eyes at varying cue-target intervals. Results indicated that the onset of endogenous orienting was apparent earlier when the cue and target were presented to the same eye. The data provides converging evidence for the notion that endogenous facilitation is modulated by monocular portions of the visual stream. This, in turn, suggests that higher cortical mechanisms are not exclusively responsible for endogenous orienting, and that a dynamic interaction between higher and lower neural levels, might be involved.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
StatePublished - Mar 2018

Bibliographical note

Funding Information:
This research was supported by the Israel Science Foundation (Grant no. 1124/14 ) to SG. All authors declare no conflict of interest pertaining to the present manuscript.

Publisher Copyright:
© 2018 Elsevier Ltd


  • Cortex
  • Endogenous attention
  • Monocular regions
  • Orienting
  • Subcortical regions

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience


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