Advanced

The flicker fusion frequency of budgerigars (Melopsittacus undulatus) revisited

Boström, Jannika E. LU ; Haller, Nicola K. LU ; Dimitrova, Marina; Ödeen, Anders and Kelber, Almut LU (2017) In Journal of Comparative Physiology A 203(1). p.15-22
Abstract

While color vision and spatial resolution have been studied in many bird species, less is known about the temporal aspects of bird vision. High temporal resolution has been described in three species of passerines but it is unknown whether this is specific to passerines, to small actively flying birds, to insectivores or to birds living in bright habitats. Temporal resolution of vision is commonly tested by determining the flicker fusion frequency (FFF), at which the eye can no longer distinguish a flickering light from a constant light of equal intensity at different luminances. Using a food reward, we trained the birds to discriminate a constant light from a flickering light, at four different luminances between 750 and 7500... (More)

While color vision and spatial resolution have been studied in many bird species, less is known about the temporal aspects of bird vision. High temporal resolution has been described in three species of passerines but it is unknown whether this is specific to passerines, to small actively flying birds, to insectivores or to birds living in bright habitats. Temporal resolution of vision is commonly tested by determining the flicker fusion frequency (FFF), at which the eye can no longer distinguish a flickering light from a constant light of equal intensity at different luminances. Using a food reward, we trained the birds to discriminate a constant light from a flickering light, at four different luminances between 750 and 7500 cd/m2. The highest FFF found in one bird at 3500 cd/m2 was 93 Hz. Three birds had higher FFF (82 Hz) at 7500 cd/m2 than at 3500 cd/m2. Six human subjects had lower FFF than the birds at 1500 but similar FFF at 750 cd/m2. These results indicate that high temporal resolution is not a common trait for all small and active birds living in bright light habitats. Whether it is typical for passerines or for insectivorous birds remains to be tested.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Avian vision, Flicker fusion frequency, Psittaciformes, Temporal resolution, Visual ecology
in
Journal of Comparative Physiology A
volume
203
issue
1
pages
8 pages
publisher
Springer
external identifiers
  • scopus:84994715870
  • wos:000393670200002
ISSN
0340-7594
DOI
10.1007/s00359-016-1130-z
language
English
LU publication?
yes
id
dc8dc949-3501-4bc6-b82e-491fc5a12e11
date added to LUP
2016-11-28 13:57:46
date last changed
2018-01-07 11:37:18
@article{dc8dc949-3501-4bc6-b82e-491fc5a12e11,
  abstract     = {<p>While color vision and spatial resolution have been studied in many bird species, less is known about the temporal aspects of bird vision. High temporal resolution has been described in three species of passerines but it is unknown whether this is specific to passerines, to small actively flying birds, to insectivores or to birds living in bright habitats. Temporal resolution of vision is commonly tested by determining the flicker fusion frequency (FFF), at which the eye can no longer distinguish a flickering light from a constant light of equal intensity at different luminances. Using a food reward, we trained the birds to discriminate a constant light from a flickering light, at four different luminances between 750 and 7500 cd/m<sup>2</sup>. The highest FFF found in one bird at 3500 cd/m<sup>2</sup> was 93 Hz. Three birds had higher FFF (82 Hz) at 7500 cd/m<sup>2</sup> than at 3500 cd/m<sup>2</sup>. Six human subjects had lower FFF than the birds at 1500 but similar FFF at 750 cd/m<sup>2</sup>. These results indicate that high temporal resolution is not a common trait for all small and active birds living in bright light habitats. Whether it is typical for passerines or for insectivorous birds remains to be tested.</p>},
  author       = {Boström, Jannika E. and Haller, Nicola K. and Dimitrova, Marina and Ödeen, Anders and Kelber, Almut},
  issn         = {0340-7594},
  keyword      = {Avian vision,Flicker fusion frequency,Psittaciformes,Temporal resolution,Visual ecology},
  language     = {eng},
  number       = {1},
  pages        = {15--22},
  publisher    = {Springer},
  series       = {Journal of Comparative Physiology A},
  title        = {The flicker fusion frequency of budgerigars (Melopsittacus undulatus) revisited},
  url          = {http://dx.doi.org/10.1007/s00359-016-1130-z},
  volume       = {203},
  year         = {2017},
}