Orientation based saliency and visual search in the archer fish
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1
Ben Gurion University of the Negev, Department of Computer Science, Israel
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2
Ben Gurion University of the Negev, Zlotowski Center for Neuroscience, Israel
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3
Ben-Gurion University of the Negev, Department of Life Sciences, Israel
Orientations based visual saliency effects have been extensively demonstrated in behavioral experiments with humans and other primates, and in many theoretical models have been tightly linked to known properties of the anatomical and functional organization of early visual cortex. Employing a novel behavioral methodology in experiments with the archer fish, a proficient hunter with remarkable visual abilities (Schlegel and Schuster, 2008), we observed orientation saliency effects similar to those observed with human subject (Mokeichev, Segev and Ben-Shahar, 2010). Such findings challenge our current conceptions of the necessitous physiological hardware for processing orientations saliency. In other experiments with human subjects we exploited our unique methodological approach to find interactions between chromatic and achromatic mechanisms in processing of orientation saliency. These finding, again, challenge the general view of largely independent processing streams of chromatic and achromatic information at early stages of the visual pathways. We conjecture that both of these studies suggest orientation-based saliency processing to constitute a fundamental (and abstract) building block for efficient visual information processing.
Acknowledgements
This work was supported in part by the DFG and the Israel Science Foundation, as well as the Zlotowski Center for Neuroscience, the Paul Ivanier Robotics Center, the Frankel Fund at Ben-Gurion University.
References
Schlegel, T., and Schuster, S.(2008). Small circuits for large tasks: high-speed decision-making in archerfish. Science 319, 104-106
Mokeichev, A., Segev, R., and Ben-Shahar, O. (2010). Orientation saliency without visual cortex and target selection in archer fish. PNAS 107, 16726–16731.
Keywords:
archer fish,
visual saliency,
orientation saliency,
visual search,
orientation pop out,
color pop out,
visual information processing,
orientation-based texture segregation
Conference:
Tenth International Congress of Neuroethology, College Park. Maryland USA, United States, 5 Aug - 10 Aug, 2012.
Presentation Type:
Invited Symposium (only for people who have been invited to a particular symposium)
Topic:
Sensory: Vision
Citation:
Mokeichev
A,
Segev
R and
Ben-Shahar
O
(2012). Orientation based saliency and visual search in the archer fish.
Conference Abstract:
Tenth International Congress of Neuroethology.
doi: 10.3389/conf.fnbeh.2012.27.00069
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Received:
04 Jul 2012;
Published Online:
07 Jul 2012.
*
Correspondence:
Mr. Alik Mokeichev, Ben Gurion University of the Negev, Department of Computer Science, Be'er Sheva, 84105, Israel, mokeiche@cs.bgu.ac.il