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Updated: May 5, 2026

Testing Visual Sensitivity to the Speed and Direction of Motion in Lizards
Published on: December 14, 2006
Giorgio Vallortigara1, Lucia Regolin, Fabio Marconato
1Department of Psychology, B.R.A.I.N. Centre for Neuroscience, University of Trieste, Trieste, Italy. vallorti@univ.trieste.it
Newly hatched chicks show an innate preference for biological motion patterns, approaching animations of various vertebrates, including predators. This suggests a brain mechanism for orienting young animals toward semi-rigidly moving objects to aid learning.
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