Orientation saliency without visual cortex and target selection in archer fish

Alik Mokeichev, Ronen Segev, Ohad Ben-Shahar

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Our visual attention is attracted by salient stimuli in our environment and affected by primitive features such as orientation, color, and motion. Perceptual saliency due to orientation contrast has been extensively demonstrated in behavioral experiments with humans and other primates and is believed to be facilitated by the functional organization of the primary visual cortex. In behavioral experiments with the archer fish, a proficient hunter with remarkable visual abilities, we found an orientation saliency effect similar to that observed in human subjects. Given the enormous evolutionary distance between humans and archer fish, our findings suggest that orientation-based saliency constitutes a fundamental building block for efficient visual information processing.

Original languageEnglish
Pages (from-to)16726-16731
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number38
StatePublished - 21 Sep 2010


  • Orientation contrast
  • Orientation-based texture segregation
  • Visual information processing
  • Visual saliency
  • Visual search

ASJC Scopus subject areas

  • General


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