Gover, N., Jarvis, J., Abeyesinghe, S.M. and Wathes, C.M. 2009. Stimulus luminance and the spatial acuity of domestic fowl (Gallus g. domesticus). Vision Research: an international journal for functional aspects of vision. 49 (23), pp. 2747-2753. https://doi.org/10.1016/j.visres.2009.08.011
| Title | Stimulus luminance and the spatial acuity of domestic fowl (Gallus g. domesticus) |
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| Authors | Gover, N., Jarvis, J., Abeyesinghe, S.M. and Wathes, C.M. |
| Abstract | The luminance dependence of spatial acuity in domestic fowl was measured directly over stimulus luminances ranging from 0.06 to 57.35 cd m−2. At the highest luminance, acuity was around 6.5 c deg−1, in agreement with previous studies in this species. As stimulus luminance decreased, acuity fell with increasing rate to 3.2 c deg−1 at 0.06 cd m−2, following the same shape as acuity functions for other mammalian and avian species. These findings suggest that the rod–cone transition for domestic fowl is between 0.45 and 1.79 cd m−2. Over the photopic range from 1.79 to 57.35 cd m−2 the change of acuity for fowl was 1%, compared with 32% for humans. For domestic fowl, the Rovamo–Barten MTF model of contrast sensitivity accounted for the behaviour of acuity as a function of luminance down to mesopic levels. |
| Journal | Vision Research: an international journal for functional aspects of vision |
| Journal citation | 49 (23), pp. 2747-2753 |
| ISSN | 0042-6989 |
| Year | Nov 2009 |
| Publisher | Pergamon |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.visres.2009.08.011 |
| Publication dates | |
| Published | Nov 2009 |