Spatial and Temporal Resolution of the Visual System of the Anna's Hummingbird (
flight
hummingbird
spatial
temporal
vision
visual acuity
Journal
Physiological and biochemical zoology : PBZ
ISSN: 1537-5293
Titre abrégé: Physiol Biochem Zool
Pays: United States
ID NLM: 100883369
Informations de publication
Date de publication:
Historique:
entrez:
9
8
2019
pubmed:
9
8
2019
medline:
31
1
2020
Statut:
ppublish
Résumé
Hummingbirds are an emerging model for studies of the visual guidance of flight. However, basic properties of their visual systems, such as spatial and temporal visual resolution, have not been characterized. We measured both the spatial and temporal visual resolution of Anna's hummingbirds using behavioral experiments and anatomical estimates. Spatial visual resolution was determined behaviorally using the optocollic reflex and anatomically using peak retinal ganglion cell densities from retinal whole mounts and eye size. Anna's hummingbirds have a spatial visual resolution of 5-6 cycles per degree when measured behaviorally, which matches anatomical estimates (fovea:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM