The depth distribution of optimal stimulus orientations for neurones in cat area 17

Neurones recording during penetrations through cat area 17 as near parallel to the radial fibre bundles as possible have been quantitatively tested as to their optimal orientation. Optimal orientation within any one penetration was similar though considerable variability was observed. Histological r...

Full description

Saved in:
Bibliographic Details
Published in:Experimental brain research 1977-03, Vol.27 (3-4), p.301-314
Main Authors: Lee, B B, Albus, K, Heggelund, P, Hulme, M J, Creutzfeldt, O D
Format: Article
Language:English
Subjects:
Animals
Cats
Neurons - physiology
Space life sciences
Visual Cortex - cytology
Visual Cortex - physiology
Visual Perception - physiology
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Neurones recording during penetrations through cat area 17 as near parallel to the radial fibre bundles as possible have been quantitatively tested as to their optimal orientation. Optimal orientation within any one penetration was similar though considerable variability was observed. Histological reconstruction and other considerations showed that this variability could not be attributed to poor penetration angle or limitations of the microelectrode technique. These results confirm that neurones with similar optimal orientations are found in all cortical layers at one cortical locus, but it is difficult to reconcile the variability observed with a mosaic-like distribution of orientation across the cortical surface. The findings were consistent, however, with the assumption of a continuous distribution of orientation sensitivity across the cortical surface with considerable superimposed scatter.
ISSN:0014-4819
1432-1106
DOI:10.1007/BF00235505