Orientation mosaic in barn owl's visual Wulst revealed by optical imaging: Comparison with cat and monkey striate and extra-striate areas

Liu G.B. and Pettigrew J.D. (2003) Orientation mosaic in barn owl's visual Wulst revealed by optical imaging: Comparison with cat and monkey striate and extra-striate areas. Brain Research, 961 1: 153-158. doi:10.1016/S0006-8993(02)03747-2


Author Liu G.B.
Pettigrew J.D.
Title Orientation mosaic in barn owl's visual Wulst revealed by optical imaging: Comparison with cat and monkey striate and extra-striate areas
Journal name Brain Research   Check publisher's open access policy
ISSN 0006-8993
Publication date 2003-01-24
Sub-type Article (original research)
DOI 10.1016/S0006-8993(02)03747-2
Open Access Status
Volume 961
Issue 1
Start page 153
End page 158
Total pages 6
Subject 2800 Neuroscience
Abstract Using the technique of intrinsic signal optical imaging, orientation preference maps were obtained from the Wulst 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.
Keyword Barn owl
Cat
Marmoset monkey
Optical imaging
Visual cortex
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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