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Rotational object discrimination by pigeons.
J Exp Psychol Anim Behav Process. 2009 Apr; 35(2):250-65.JE

Abstract

Four experiments examined the discrimination of directional object motion by pigeons. Four pigeons were tested in a go/no-go procedure with video stimuli of pigeons rotating right or left around their central y-axis. This directional discrimination was learned in 7 to 12 sessions and was not affected by changes in object starting orientation, but did require the coherent ordering of the videos' successive frames. Subsequent experiments found no or little transfer of this motion discrimination to novel objects. Experiments varying the speed of rotation and degrees of apparent motion per frame revealed that both factors strongly affected the discrimination. Finally, tests with partial occlusion of different portions of a rotating object suggested that the majority of the object was likely involved in determining rotational direction. These experiments indicate that pigeons can exclusively use motion cues to judge relative object motion. They also suggest the pigeons may have used a specific representation of the motion sequences of each object to make the discrimination.

Authors+Show Affiliations

Department of Psychology, Tufts University, Medford, MA 02155, USA. angie.koban@tufts.eduNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

19364233

Citation

Koban, Angie, and Robert Cook. "Rotational Object Discrimination By Pigeons." Journal of Experimental Psychology. Animal Behavior Processes, vol. 35, no. 2, 2009, pp. 250-65.
Koban A, Cook R. Rotational object discrimination by pigeons. J Exp Psychol Anim Behav Process. 2009;35(2):250-65.
Koban, A., & Cook, R. (2009). Rotational object discrimination by pigeons. Journal of Experimental Psychology. Animal Behavior Processes, 35(2), 250-65. https://doi.org/10.1037/a0013874
Koban A, Cook R. Rotational Object Discrimination By Pigeons. J Exp Psychol Anim Behav Process. 2009;35(2):250-65. PubMed PMID: 19364233.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rotational object discrimination by pigeons. AU - Koban,Angie, AU - Cook,Robert, PY - 2009/4/15/entrez PY - 2009/4/15/pubmed PY - 2009/6/26/medline SP - 250 EP - 65 JF - Journal of experimental psychology. Animal behavior processes JO - J Exp Psychol Anim Behav Process VL - 35 IS - 2 N2 - Four experiments examined the discrimination of directional object motion by pigeons. Four pigeons were tested in a go/no-go procedure with video stimuli of pigeons rotating right or left around their central y-axis. This directional discrimination was learned in 7 to 12 sessions and was not affected by changes in object starting orientation, but did require the coherent ordering of the videos' successive frames. Subsequent experiments found no or little transfer of this motion discrimination to novel objects. Experiments varying the speed of rotation and degrees of apparent motion per frame revealed that both factors strongly affected the discrimination. Finally, tests with partial occlusion of different portions of a rotating object suggested that the majority of the object was likely involved in determining rotational direction. These experiments indicate that pigeons can exclusively use motion cues to judge relative object motion. They also suggest the pigeons may have used a specific representation of the motion sequences of each object to make the discrimination. SN - 0097-7403 UR - https://www.unboundmedicine.com/medline/citation/19364233/Rotational_object_discrimination_by_pigeons_ L2 - http://content.apa.org/journals/xan/35/2/250 DB - PRIME DP - Unbound Medicine ER -