Orientation mosaic in barn owl’s visual Wulst revealed by optical imaging: comparison with cat and monkey striate and extra-striate areas
Article
Article Title | Orientation mosaic in barn owl’s visual Wulst revealed by optical imaging: comparison with cat and monkey striate and extra-striate areas |
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ERA Journal ID | 14502 |
Article Category | Article |
Authors | Liu, Guang Bin (Author) and Pettigrew, John Douglas (Author) |
Journal Title | Brain Research |
Journal Citation | 961 (1), pp. 153-158 |
Number of Pages | 6 |
Year | 2003 |
Place of Publication | Amsterdam, Netherlands |
ISSN | 0006-8993 |
1872-6240 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/S0006-8993(02)03747-2 |
Web Address (URL) | http://www.sciencedirect.com/science/journal/00068993 |
Abstract | Using the technique of intrinsic signal optical imaging, orientation preference maps were obtained from theWulst of the barn owl in the area that represents central vision, and from the visual cortices (V1 and V2) of cat and marmoset monkey. Iso-orientation domains in barn owl’s visual Wulst were patch-like structures with an inter-patch distance of |0.9 mm, arranged in a pinwheel-like manner around singularity points. The size of the iso-orientation domains in barn owl was larger than those found in area V1, but comparable to those found in area V2, of cat and monkey. Superficial layers of the owl visual Wulst may be equivalent to extra-striate visual areas of primates and carnivores, as already suggested by electrophysiologists discussing the much increased radial dimensions of the Wulst compared with neocortex in mammals. |
Keywords | optical imaging; visual cortex; barn owl; cat; marmoset monkey |
ANZSRC Field of Research 2020 | 320907. Sensory systems |
320903. Central nervous system | |
321204. Vision science | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
https://research.usq.edu.au/item/9y63x/orientation-mosaic-in-barn-owl-s-visual-wulst-revealed-by-optical-imaging-comparison-with-cat-and-monkey-striate-and-extra-striate-areas
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