Liu, Rui-Feng Thalamic neurons in the pigeon compute distance-to-collision of an approaching surface. [electronic resource] - Brain, behavior and evolution 2008 - 37-47 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1421-9743 Standard No.: 10.1159/000145716 doi Subjects--Topical Terms: Action PotentialsAfferent Pathways--physiologyAnimalsColumbidae--anatomy & histologyDepth Perception--physiologyDistance Perception--physiologyElectrocardiographyFemaleFlight, Animal--physiologyHeart RateMaleMotion Perception--physiologyNeurons--physiologyPatch-Clamp TechniquesPhotic StimulationThalamic Nuclei--physiology