AUTHOR=Rosa Salva Orsola , Sovrano Valeria Anna , Vallortigara Giorgio TITLE=What can fish brains tell us about visual perception? JOURNAL=Frontiers in Neural Circuits VOLUME=8 YEAR=2014 URL=https://www.frontiersin.org/journals/neural-circuits/articles/10.3389/fncir.2014.00119 DOI=10.3389/fncir.2014.00119 ISSN=1662-5110 ABSTRACT=

Fish are a complex taxonomic group, whose diversity and distance from other vertebrates well suits the comparative investigation of brain and behavior: in fish species we observe substantial differences with respect to the telencephalic organization of other vertebrates and an astonishing variety in the development and complexity of pallial structures. We will concentrate on the contribution of research on fish behavioral biology for the understanding of the evolution of the visual system. We shall review evidence concerning perceptual effects that reflect fundamental principles of the visual system functioning, highlighting the similarities and differences between distant fish groups and with other vertebrates. We will focus on perceptual effects reflecting some of the main tasks that the visual system must attain. In particular, we will deal with subjective contours and optical illusions, invariance effects, second order motion and biological motion and, finally, perceptual binding of object properties in a unified higher level representation.