Biomaterial Database

Binocular field in pigeons: behavioral measures of stimulus detection and coding. 1997

G Cesaretti, and C Kusmic, and D Musumeci

Dipartimento di Fisiologia & Biochimica, Università di Pisa, Italy.

The extension of the binocular visual field of pigeons is measured using a pecking behavioral method. Our estimate of the binocular field derived at the animal near point of accommodation indicates a 50 degrees width on the horizontal axis and more than 50 degrees on the vertical axis. Within the binocular field there is a core of about 24 degrees, named coding area, in which the stimulus is detected and coded by only one head fixation before accomplishing the pecking response, in both binocular and monocular viewing conditions. Outside the coding area, lies the detection area, in which the stimulus can be detected, but it needs a second head fixation to be coded in all viewing conditions. Our results are in agreement with the hypothesis that the coding area corresponds to the red field projection of each retina. In binocular vision an overlap of the two areas occurs, thus promoting the image fusion useful for a stereoscopic vision during the pecking to the seed.

UI	MeSH Term	Description	Entries
D010856	Columbidae	Family in the order COLUMBIFORMES, comprised of pigeons or doves. They are BIRDS with short legs, stout bodies, small heads, and slender bills. Some sources call the smaller species doves and the larger pigeons, but the names are interchangeable.	Columba livia,Doves,Pigeons,Domestic Pigeons,Feral Pigeons,Rock Doves,Rock Pigeons,Domestic Pigeon,Dove,Dove, Rock,Doves, Rock,Feral Pigeon,Pigeon,Pigeon, Domestic,Pigeon, Feral,Pigeon, Rock,Pigeons, Domestic,Pigeons, Feral,Pigeons, Rock,Rock Dove,Rock Pigeon
D011597	Psychomotor Performance	The coordination of a sensory or ideational (cognitive) process and a motor activity.	Perceptual Motor Performance,Sensory Motor Performance,Visual Motor Coordination,Coordination, Visual Motor,Coordinations, Visual Motor,Motor Coordination, Visual,Motor Coordinations, Visual,Motor Performance, Perceptual,Motor Performance, Sensory,Motor Performances, Perceptual,Motor Performances, Sensory,Perceptual Motor Performances,Performance, Perceptual Motor,Performance, Psychomotor,Performance, Sensory Motor,Performances, Perceptual Motor,Performances, Psychomotor,Performances, Sensory Motor,Psychomotor Performances,Sensory Motor Performances,Visual Motor Coordinations
D004193	Discrimination Learning	Learning that is manifested in the ability to respond differentially to various stimuli.	Discriminative Learning,Discrimination Learnings,Discriminative Learnings,Learning, Discrimination,Learning, Discriminative
D005403	Fixation, Ocular	Positioning and accommodation of eyes that allows the image to be brought into place on the FOVEA CENTRALIS of each eye.	Focusing, Ocular,Ocular Fixation,Eye Gaze,Eye Gazes,Gaze, Eye,Gazes, Eye,Ocular Focusing
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
D014741	Video Recording	The storing or preserving of video signals to be played back later via a transmitter or receiver.	Audiovisual Recording,Videorecording,Audiovisual Recordings,Recording, Audiovisual,Recording, Video,Recordings, Audiovisual,Recordings, Video,Video Recordings,Videorecordings
D014794	Visual Fields	The total area or space visible in a person's peripheral vision with the eye looking straightforward.	Field, Visual,Fields, Visual,Visual Field
D015348	Vision, Binocular	The blending of separate images seen by each eye into one composite image.	Binocular Vision