Change detection and change blindness in pigeons (Columba livia)

Walter T. Herbranson, Yvan T. Trinh, Patricia M. Xi, Mark P. Arand, Michael S. K. Barker, Theodore H. Pratt
2014 Journal of Comparative Psychology  
Change blindness is a phenomenon in which even obvious details in a visual scene change without being noticed. Although change blindness has been studied extensively in humans, we do not yet know if it is a phenomenon that also occurs in other animals. Thus, investigation of change blindness in a nonhuman species may prove to be valuable by beginning to provide some insight into its ultimate causes. Pigeons learned a change detection task in which pecks to the location of a change in a sequence
more » ... hange in a sequence of stimulus displays were reinforced. They were worse at detecting changes if the stimulus displays were separated by a brief interstimulus interval, during which the display was blank, and this primary result matches the general pattern seen in previous studies of change blindness in humans. A second experiment attempted to identify specific stimulus characteristics that most reliably produced a failure to detect changes. Change detection was more difficult when interstimulus intervals were longer and when the change was iterated fewer times.
doi:10.1037/a0034567 pmid:24188621 fatcat:lsfhqbkiwbau3chgnhlsx7aibq