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Updated: Aug 14, 2026
11:24
Targeted Labeling of Neurons in a Specific Functional Micro-domain of the Neocortex by Combining Intrinsic Signal and Two-photon Imaging
Published on: December 12, 2012
Specificity of cortico-cortical connections in monkey visual system
Nature
|August 11, 1983
Summary
The primate visual cortex shows specific connections between area 17 and area 18. Cytochrome oxidase blobs in area 17 project to thin stripes in area 18, suggesting parallel processing of visual information.
Area of Science:
- Neuroscience
- Visual System Research
- Cortical Connectivity
Background:
- The primate visual cortex exhibits distinct cytochrome oxidase patterns.
- Area 17 (primary visual cortex) shows 'blobs', while area 18 has thick and thin stripes.
Purpose of the Study:
- To investigate the specificity of cortico-cortical connections between area 17 and area 18.
- To determine how visual information is processed in the pathway from area 17 to area 18.
Main Methods:
- Cytochrome oxidase staining to visualize visual cortex structures.
- Tracing neural projections between area 17 and area 18.
Main Results:
- Thin cytochrome oxidase stripes in area 18 receive specific projections from area 17 blobs.
- Interstripe regions in area 18 are connected to the interblob matrix of area 17.
- These connections demonstrate high specificity beyond simple topographical mapping.
Conclusions:
- The visual pathway from area 17 to area 18 exhibits highly specific connections.
- Different types of visual information are likely processed in parallel streams within this pathway.
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