Pop-out in visual search of moving targets in the archer fish

Nature Communications
Mor Ben-TovRonen Segev

Abstract

Pop-out in visual search reflects the capacity of observers to rapidly detect visual targets independent of the number of distracting objects in the background. Although it may be beneficial to most animals, pop-out behaviour has been observed only in mammals, where neural correlates are found in primary visual cortex as contextually modulated neurons that encode aspects of saliency. Here we show that archer fish can also utilize this important search mechanism by exhibiting pop-out of moving targets. We explore neural correlates of this behaviour and report the presence of contextually modulated neurons in the optic tectum that may constitute the neural substrate for a saliency map. Furthermore, we find that both behaving fish and neural responses exhibit additive responses to multiple visual features. These findings suggest that similar neural computations underlie pop-out behaviour in mammals and fish, and that pop-out may be a universal search mechanism across all vertebrates.

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Citations

Dec 30, 2015·PloS One·João Sollari LopesRui F Oliveira
Nov 26, 2015·PloS One·Cait NewportUlrike E Siebeck
Oct 14, 2017·Cerebral Cortex·Mehran AhmadlouJ Alexander Heimel
Jan 3, 2019·Journal of Vision·Adam ReichenthalRonen Segev
Mar 22, 2018·Frontiers in Neural Circuits·Adam ReichenthalRonen Segev
May 28, 2019·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Svetlana VolotskyRonen Segev
Dec 8, 2017·Animal Cognition·Tidhar Lev-Ari, Yoram Gutfreund
Jan 4, 2020·Attention, Perception & Psychophysics·Adam ReichenthalOhad Ben-Shahar
Dec 12, 2018·The Journal of Experimental Biology·Stefan Schuster
Sep 12, 2020·Bioinspiration & Biomimetics·Leah Mendelson, Alexandra H Techet
Dec 29, 2020·Neuron·António M FernandesHerwig Baier
Sep 30, 2017·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Richard J KrauzlisAnil Bollimunta
Dec 3, 2021·The Journal of Experimental Biology·Nick A R JonesMike M Webster

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