title: Intensity difference thresholds in pigeons after lesions of the tectofugal and thalamofugal visual pathways.
mesh_terms: D000818:Animals; D010856:Columbidae; D004056:Differential Threshold; D004192:Discrimination, Psychological; D008029:Lighting; D013787:Thalamic Nuclei / Q000502:physiology; D013788:Thalamus / Q000502:physiology* / Q000601:surgery; D014795:Visual Pathways / Q000502:physiology*; D014796:Visual Perception