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The presylvian cortex as a transitional prefronto-motor zone in dog
Acta Neurobiologiae Experimentalis
|January 1, 1984
Summary
Researchers mapped brain connections in dogs using retrograde HRP transport. The study identified the presylvian cortex as a transitional prefronto-motor zone, linking prefrontal and motor cortices.
Area of Science:
- Neuroscience
- Comparative Anatomy
Background:
- The presylvian cortex in dogs is not fully understood.
- Investigating its connections can elucidate its functional role.
Purpose of the Study:
- To investigate the subcortico-cortical and cortico-cortical connections of the dog's presylvian cortex.
- To determine the functional role of the medial and lateral walls of the presylvian fissure.
Main Methods:
- Retrograde horseradish peroxidase (HRP) transport was used to trace neural projections.
- Cortical regions in the medial and lateral walls of the presylvian fissure were examined.
Main Results:
- The medial presylvian wall (paraorbital area) connects with the prefrontal cortex.
- The lateral presylvian wall (anterior composite area) connects with the motor cortex.
- Short reciprocal connections were found between the paraorbital and anterior composite areas.
Conclusions:
- The presylvian cortex exhibits connections characteristic of both prefrontal and motor areas.
- Based on its connections and cytoarchitecture, the presylvian cortex is proposed as a transitional prefronto-motor zone.