Biomaterial Database

Investigations of a mirror-image transfer effect in pigeons. 1966

D R Thomas, and W Klipec, and J Lyons

In two separate experiments, pigeons trained binocularly to peck a key on which an oblique line (e.g., 60 degrees counter-clockwise rotation from horizontal) was projected yielded bi-modal angularity generalization gradients in extinction, with peaks of responding at both the training stimulus and its mirror image (in this case 120 degrees ). This mirror-image transfer effect may be analogous to an "octave effect" in auditory generalization, but Mello's finding of a mirror-image reversal transfer effect following monocular training in pigeons suggests an alternative interpretation.

UI	MeSH Term	Description	Entries
D009949	Orientation	Awareness of oneself in relation to time, place and person.	Cognitive Orientation,Mental Orientation,Psychological Orientation,Cognitive Orientations,Mental Orientations,Orientation, Cognitive,Orientation, Mental,Orientation, Psychological,Orientations,Orientations, Cognitive,Orientations, Mental,Orientations, Psychological,Psychological Orientations
D004192	Discrimination, Psychological	Differential response to different stimuli.	Discrimination, Psychology,Psychological Discrimination
D005108	Extinction, Psychological	The procedure of presenting the conditioned stimulus without REINFORCEMENT to an organism previously conditioned. It refers also to the diminution of a conditioned response resulting from this procedure.	Psychological Extinction,Extinction (Psychology),Extinctions (Psychology),Extinctions, Psychological,Psychological Extinctions
D005793	Generalization, Psychological	The phenomenon of an organism's responding to all situations similar to one in which it has been conditioned.	Generalization (Psychology),Generalization, Psychology,Generalizations (Psychology),Generalizations, Psychological,Generalizations, Psychology,Psychological Generalization,Psychological Generalizations,Psychology Generalization,Psychology Generalizations
D005795	Generalization, Stimulus	The tendency to react to stimuli that are different from, but somewhat similar to, the stimulus used as a conditioned stimulus.	Generalizations, Stimulus,Stimulus Generalization,Stimulus Generalizations
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001717	Birds	Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.	Aves,Bird
D014163	Transfer, Psychology	Change in learning in one situation due to prior learning in another situation. The transfer can be positive (with second learning improved by first) or negative (where the reverse holds).	Transfer (Psychology),Transfer of Learning,Transfer of Training,Learning Transfer,Psychology Transfer,Psychology Transfers,Training Transfer,Transfers (Psychology),Transfers, Psychology
D014796	Visual Perception	The selecting and organizing of visual stimuli based on the individual's past experience.	Visual Processing,Perception, Visual,Processing, Visual